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KUSUNOKI Masanobu

    Department of Human Factors Engineering and Environmental Design　Professor
Last Updated :2024/04/25

Researcher Information

Degree

  • Dr（Nagoya University）

URL

Research funding number

  • 20282238

J-Global ID

Research Interests

  • デバイスプロセス   生体材料   アパタイト   バイオデバイス   バイオセンサ   センシングデバイス   歯科治療･予防素材   レーザーアブレーション   結晶化   高分解能測定法   超伝導   高温超伝導   高周波表面抵抗   超伝導フィルタ   単一磁束量子   ナノワイヤ   ナノブリッジ   移動体通信基地局   単一光子検出   超伝導アンテナ   ミリ波   マイクロ波   サファイア   誘電損   

Research Areas

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Measurement engineering
  • Nanotechnology/Materials / Structural and functional materials
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Electronic devices and equipment
  • Nanotechnology/Materials / Inorganic materials
  • Life sciences / Biomaterials
  • Life sciences / Biomedical engineering
  • Life sciences / Regenerative dentistry and dental engineering
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Electric/electronic material engineering
  • Life sciences / Prosthodontics
  • Life sciences / Nutrition and health science
  • Nanotechnology/Materials / Nano/micro-systems
  • Nanotechnology/Materials / Nanomaterials

Academic & Professional Experience

  • 2011 - Today  Kindai UniversityFaculty of Biology-Oriented Science and Technology教授
  • 2005 - 2011  Kindai University助教授・准教授
  • 2003 - 2005  Kindai University
  • 1996 - 2003  Yamagata University
  • 1999 - 2000  ライプツイヒ大学 招聘研究員

Education

  •        - 1996  名古屋大学大学院  工学研究科  電子工学専攻
  •        - 1991  Meijo University  Faculty of Science and Technology  Department of Electrical and Electronic Engineering

Association Memberships

  • THE JAPANESE SOCIETY OF PHYSICAL FITNESS AND SPORTS MEDICINE   JAPANESE SOCIETY FOR MEDICAL AND BIOLOGICAL ENGINEERING   電子情報通信学会   応用物理学会   

Published Papers

  • Soichi Okada; Nobuo Takeshima; Eiji Fujita; Takeshi Kohama; Masanobu Kusunoki; William F. Brechue
    Journal of Physical Therapy Science Society of Physical Therapy Science 36 (1) 9 - 20 0915-5287 2024
  • Yosuke Osuka; Nobuo Takeshima; Narumi Kojima; Takeshi Kohama; Eiji Fujita; Masanobu Kusunoki; Aiko Imai; Yukiko Kitabayashi; William F. Brechue; Hiroyuki Sasai
    Archives of Gerontology and Geriatrics Elsevier BV 108 104915 - 104915 0167-4943 2023/05
  • Hidetaka Togo; Kento Terada; Akira Ujitsugu; Yudai Hirose; Hiroki Takeuchi; Masanobu Kusunoki
    Cells 12 (2) 2023/01 [Refereed]
     
    Spheroids are expected to aid the establishment of an in vitro-based cell culture system that can realistically reproduce cellular dynamics in vivo. We developed a fluoropolymer scaffold with an extracellular matrix (ECM) dot array and confirmed the possibility of mass-producing spheroids with uniform dimensions. Controlling the quality of ECM dots is important as it ensures spheroid uniformity, but issues such as pattern deviation and ECM drying persist in the conventional microstamping method. In this study, these problems were overcome via ECM dot printing using a resin mask with dot-patterned holes. For dot diameters of φ 300 μm, 400 μm, and 600 μm, the average spheroid diameters of human iPS cells (hiPSCs) were φ 260.8 μm, 292.4 μm, and 330.7 μm, respectively. The standard deviation when each average was normalized to 100 was 14.1%. A high throughput of 89.9% for colony formation rate to the number of dots and 89.3% for spheroid collection rate was achieved. The cells proliferated on ECM dots, and the colonies could be naturally detached from the scaffold without the use of enzymes, so there was almost no stimulation of the cells. Thus, the undifferentiated nature of hiPSCs was maintained until day 4. Therefore, this method is expected to be useful in drug discovery and regenerative medicine.
  • Koufuku Keigo; Eiji Fujita; Kubo Seigo; Kohama Takeshi; Kusunoki Masanobu; Takeshima Nobuo; Nakagaichi Masaki
    Research Journal of Sports Performance Japan Society of Sports Performance Research 14 109 - 117 2022 [Refereed]
     
    The purpose of this study was to determine the effects of a MotoTiles exercise on balance ability in communitydwelling older adults. The participants were 11 women who lived in T city and had performed a community-group exercise. The exercise was carried out twice a week for a period of 12 weeks using the local community center. For the balance index, a 20-sec stepping test was performed with the eyes open, and the total head movment distance (TMD), maximum movment distance (MMD), and the distance of the knee joint point (KMD) were used using KINECTTM infrared sensor. The pace of both legs (PACE left and right) and its coefficient of variation (CV) were used using Optogait infrared sensor system. Functional reach (FR), up-and-go (TUG), and 30sec-chair stand (30-CS) were also examined. As a result of 12 weeks of exercise, there was significant improved on TMD, MMD, PACE left CV, FR, TUG, and 30-CS (effect size were moderate to large). No significant changes were observed in other infrared sensor-related indexes, but overall, the head and knee sway during the stepping test and the variation when raising the legs tended to be smaller. The MotoTiles Exercise appears to be useful for assessing one of balance ability in older adults.
  • Hidetaka Togo; Kento Yoshikawa-Terada; Yudai Hirose; Hideo Nakagawa; Hiroki Takeuchi; Masanobu Kusunoki
    Applied Sciences MDPI AG 11 (21) 10495 - 10495 2021/11 [Refereed]
     
    Establishing an in vitro–based cell culture system that can realistically simulate in vivo cell dynamics is desirable. It is thus necessary to develop a method for producing a large amount of cell aggregates (i.e., spheroids) that are uniform in size and quality. Various methods have been proposed for the preparation of spheroids; however, none of them satisfy all requirements, such as cost, size uniformity, and throughput. Herein, we successfully developed a new cell culture method by combining fluoropolymers and dot patterned extracellular matrix substrates to achieve size-controlled spheroids. First, the spheroids were spontaneously formed by culturing them two-dimensionally, after which the cells were detached with a weak liquid flow and cultured in suspension without enzyme treatment. Stable quality spheroids were easily produced, and it is expected that the introduction and running costs of the technique will be low; therefore, this method shows potential for application in the field of regenerative medicine.
  • A 20-sec Stepping Test and KINECTTM Sensor Provides Objective Quantification of Movement/Balance Dysfunction in Older Individuals.
    Nobuo Takeshima; Takeshi Kohama; Masanobu Kusunoki; Sochi Okada; Eiji Fujita; Yukiya Oba; William F. Brechue
    Experimental Aging Research in press 2020/03 [Refereed]
  • Fabrication of c-plane-oriented hydroxyapatite film on amorphous SiO2 substrate
    Yuki Okada, YukaWatanabe, Takumi Sato, Masanobu Kusunoki
    Electronics and Communications in Japan 103 (1) 26 - 31 2020/03 [Refereed]
  • Yuki Okada; Yuka Watanabe; Takumi Sato; Masanobu Kusunoki
    IEEJ Transactions on Electronics, Information and Systems 139 (11) 1260 - 1265 2019/11 [Refereed]
  • Nobuo Takeshima, T. Kohama, M. Kusunoki, E. Fujita, S. Okada, Y. Kato, K. Kofuku, M. M. Islam, W. F. Brechue
    The Journal of Frailty & Aging online 1 - 6 2019/06 [Refereed]
  • Masanobu Kusunoki; Yasuhiro Sakoishi; Takayuki Makino; Tomoya Tsunemine; Naoki Fujita; Yuki Okada; Daisuke Okai; Hidetaka Togo; Takashi Hayami
    Applied Surface Science 484 433 - 440 2019 [Refereed]
  • Kusunoki M; Kohama T; Yamada Y; Fujita E; Okada S; Maeda A; Takeshima N
    Disability and rehabilitation. Assistive technology 14 (4) 1 - 11 1748-3107 2018/03 [Refereed]
     
    PURPOSE: With a growing proportion of elderly people in the population, the maintenance of activities of daily living (ADLs) in elderly people is crucial to keep medical costs down. We investigated the ADL measurement accuracy of KINECTTM and Kinect Studio. To eliminate the subjectivity of conventional methods, we numerically assessed motions with computer analysis. METHODS: Eighteen actions that repeated "move" and "stationary" phases, including movement of arms, legs, head and torso were measured using KINECTTM. Errors and standard deviations of joint coordinates at the stationary points outputted from KINECT Studio were evaluated. Simultaneous measurements were performed with KINECTTM using conventional high-performance motion capture, and the output was treated as a true value for comparison. RESULTS: In most motions, errors of the joint coordinates were within 100 mm; however, there were two cases where errors due to the skeleton-model estimation by KINECT Studio increased. Firstly, when a part of the body unexpectedly moved out of the infrared measurable area, and secondly, when parts of the body overlapped each other on the KINECTTM image. CONCLUSIONS: KINECTTM and Kinect Studio are effective for ADL assessment when positions that cause large errors are excluded. Since KINECTTM has sufficient precision, it should also be possible to develop a more appropriate ADL evaluation system with a new algorithm of skeleton-model estimation that does not depend on KINECT Studio. Implications for Rehabilitation The KINECTTM and Kinect Studio are effective for ADL assessment when positions that cause large errors are excluded With an increasing proportion of elderly people in the population, the maintenance of activities of daily living (ADLs) in elderly people is crucial to keep medical costs down Systems such as the KINECTTM can support these goals.
  • Naoki Fujita; Takayuki Makino; Yasuhiro Sakoishi; Katsuya Asano; Masanobu Kusunoki
    CRYSTAL RESEARCH AND TECHNOLOGY WILEY-V C H VERLAG GMBH 51 (3) 215 - 219 0232-1300 2016/03 [Refereed]
     
    The relation between O-2 pressure and composition in the pulsed-laser deposition of fluoroapatite was investigated using both on-axis and off-axis methods to determine the optimal conditions for obtaining a pure fluoroapatite film without OH groups. Through this, it was found that an O-2 pressure of 10 Pa, combined with an off-axis method, results in P/Ca and F/Ca values (0.6 and 0.2, respectively) that match closely with a stoichiometric composition of Ca-10(PO4)(6)F-2. Fourier transform infrared spectroscopy analysis confirmed that this optimized film was almost pure fluoroapatite, with no evidence of any OH groups originating from hydroxyapatite. X-ray diffraction also revealed that this fluoroapatite film crystallizes with a c-axis orientation perpendicular to its surface.
  • KOTANI KATSUMI; MIYAKE TOMOKI; YAMASHITA TARO; MIKI SHIGEHITO; TERAI HIROTAKA; KUSUNOKI MASANOBU
    Mem Fac Biol Oriented Sci Technol Kinki Univ 近畿大学生物理工学部 36 (36) 1 - 7 1342-7202 2015/09 [Refereed]
     
    [Abstract]A fabrication technique for high temperature superconducting (HTS) nanowires has been developed to realize photon detectors operating at high temperatures. HTS nanowires based on YBa_2Cu_3O_y (YBCO) were fabricated by electron beam (EB) lithography and Ar ion milling. During the Ar ion milling. Duuribg the Ar iron milling process, the samples were cooles by liquid N_2 to suppress degradation of YBCO due to increasing temperature. The acceleration voltage of the samples were cooled by liquid N_2 to suppress degradation of YBCO due to increasing temperature. The acceleration voltage of the Ar ions was optimized to decrease the energy of ion bombardment. To reduce the degradation from the side edge of the YBCO nanowire, a dry process using oxygen ions was employed to remove the EB resist instead of a wet process with remover and rinse solutions. A YBCO nanowire 150 nm wide and 5.4 mm long was successfully fabricated by minimizing the degradation of the YBCO film quality during the fabrication process. [要旨]液体窒素温度以上の高温領域で動作する単一光子検出器の実現を目的として, 酸化物高温超伝導ナノワイヤーの作製方法について検討を行った. 電子ビームリソグラフィーでナノパターンを形成し, Arイオンエッチングを用いて酸化物高温超伝導薄膜のYBa_2Cu_3O_yに微細加工を施すことでナノワイヤーを作製した. Arプラズマのイオン衝撃による温度上昇は超伝導特性の劣化をもたらすため, これを防ぐ目的でArイオンエッチングを行う際に液体窒素で試料の冷却を行った. これと同時に, イオソ衝撃のエネルギーを抑えるため Arイオンの加速電圧の最適化も行った. 電子ビームレジストを除去する際のリムバーやリンスなどの液体を用いたウエットプロセスによっても, YBa_2Cu_3O_yナノワイヤーの側壁部に劣化を生じるため、その対策としてOイオンを用いたドライプロセスにより電子ビームレジストの除去を行う条件を見出した. その結果, 超伝導特性に殆ど劣化のない, ワイヤー幅150nm, ワイヤー長5.4mm の酸化物高温超伝導ナノワイヤーの実現に成功した.
  • Yoshiya Hashimoto; Hiroaki Nishikawa; Masanobu Kusunoki; PeiQi Li; Shigeki Hontsu
    DENTAL MATERIALS JOURNAL JAPANESE SOC DENTAL MATERIALS DEVICES 34 (3) 345 - 350 0287-4547 2015/06 [Refereed]
     
    Cell sheet technology is a scaffold-free method for tissue reconstruction. A sheet-shaped scaffold would be suitable for the regeneration of periodontal membrane. We designed a stem cell sheet combining human mesenchymal stromal cells (hMSCs) and a 10-mu m thick biological apatite (BAp) membrane fabricated with an ArF pulsed laser ablation for periodontal regeneration. X-ray diffraction showed that crystalline hydroxyapatite (HAp) was present in BAp and HAp membranes after post-annealing. Energy dispersive analysis of the BAp membrane revealed peaks of Na and Mg in addition to Ca and P. Approximately 3x10(4) hMSCs were cultured on BAp and HAP membranes for 7 and 14 days. From in vitro assays, hMSCs grew faster and had higher osteoblast differentiation when cultured on the BAp membrane than did the cell culture on the HAp membrane. Stem cell sheets combined with a BAp membrane may have potential applications in guided bone regeneration and osteoconductive scaffolds.
  • 小濱 剛; 楠 正暢; 岡田 壮市; 竹島 伸生
    体力科学 (一社)日本体力医学会 64 (1) 12 - 12 0039-906X 2015/02 [Refereed]
  • Nobuhiro Kato; Arata Isai; Ei Yamamoto; Hiroaki Nishikawa; Masanobu Kusunoki; Kazushi Yoshikawa; Kenzo Yasuo; Kazuyo Yamamoto; Shigeki Hontsu
    Key Engineering Materials Trans Tech Publications Ltd 631 258 - 261 1013-9826 2015 [Refereed]
     
    Dentin hypersensitivity is induced by mechanical stimuli or heat stimuli applied via dentin tubules exposed by lost of dental enamel or gingival recession. Common treatments for dentin hypersensitivity are resin coating or laser irradiation. However, these treatments have some problems such as poor biocompatibility or insufficient durability. We have been developing a treatment that creates artificial tooth enamel by attaching flexible ultrathin calcium phosphate sheet having a crystal structure similar to that of tooth enamel to seal the dentin tubules. In this study, the quantitative evaluation of dentin tubule sealing rate improved by attaching ultrathin amorphous calcium phosphate (ACP) sheet on human dentin is presented. The obtained sealing-rate by APC sheet application was 70.9 ±4.8%.
  • HONTSU SHIGEKI; KATO NOBUHIRO; YAMAMOTO EI; YOSHIKAWA KAZUSHI; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU
    バイオインテグレーション学会誌 バイオインテグレーション学会 4 (1) 65 - 69 2186-2923 2014/07 [Refereed]
     
    Er:YAGレーザーによるパルスレーザーアブレーション(PLD)法のターゲットにハイドロキシアパタイト(HAp)の前駆体のリン酸カルシウム系材料(DCPD、α-TCP、β-TCP、CPP)を用い、レーザー光を2分間照射した。乾燥状態ではDCPDが強いPLDを示し、α-TCPは弱いPLD、β-TCP、CPPでPLDを認めなかった。純水滴下後では全てに強いPLDを認めた。純水滴下後10分照射でTi基板上に成膜し、37℃の恒温槽に3時間保持した膜のX線回折(XRD)パターンでHApのピークを示したのはα-TCPのみであり、ピークは時間経過とともに小さくなり、48時間でほぼ消滅してHAp膜となった。エナメル質にpH5.5の第一リン酸カルシウム溶液を塗布してα-TCPをレーザーで成膜し、恒温槽保持3時間後のXRDパターンでピークは認めず、HAp膜となっていた。レジン包埋後断面の走査型電子顕微鏡像で、エナメル質上に10〜20μm厚の緻密なHAp膜を認め、成膜速度は約1〜2μm/minであった。
  • Hiroaki Nishikawa; Yusuke Morita; Masanobu Kusunoki; Shigeki Hontsu; Hidekazu Tanaka; Tamio Endo
    JAPANESE JOURNAL OF APPLIED PHYSICS IOP PUBLISHING LTD 53 (5) 0021-4922 2014/05 [Refereed]
     
    In this study, we prepared a uniaxially oriented oxide on a flexible polymer substrate. We first grew [100] oriented SrTiO3 (STO) on a MgO(100) substrate. After bonding the STO film to a poly(ethylene naphthalete) (PEN) sheet with a photoresist, we etched the MgO substrate with a phosphoric acid solution to transfer the oxide film to the PEN sheet. The thin (300nm) STO films did not crack after release, even after bending the sheet around a rod with a 1cm radius, while the thicker (800 nm) films did. Ultimately, this process could be adapted to prepare a flexible epitaxial oxide. (C) 2014 The Japan Society of Applied Physics
  • Hiroaki Nishikawa; Yusuke Morita; Masanobu Kusunoki; Shigeki Hontsu; Hidekazu Tanaka; Tamio Endo
    JAPANESE JOURNAL OF APPLIED PHYSICS IOP PUBLISHING LTD 53 (5) 05FB06.1-05FB06.4  0021-4922 2014/05 [Refereed]
     
    In this study, we prepared a uniaxially oriented oxide on a flexible polymer substrate. We first grew [100] oriented SrTiO3 (STO) on a MgO(100) substrate. After bonding the STO film to a poly(ethylene naphthalete) (PEN) sheet with a photoresist, we etched the MgO substrate with a phosphoric acid solution to transfer the oxide film to the PEN sheet. The thin (300nm) STO films did not crack after release, even after bending the sheet around a rod with a 1cm radius, while the thicker (800 nm) films did. Ultimately, this process could be adapted to prepare a flexible epitaxial oxide. (C) 2014 The Japan Society of Applied Physics
  • Takashi Hayami; Masanobu Kusunoki
    BIOMMEDD V TRANS TECH PUBLICATIONS LTD 583 51 - 55 1013-9826 2014 [Refereed]
     
    In order to impart both osseointegration and osteoconduction characteristics onto extruded pure polyetheretherketone (PEEK) for use as an artificial bone material, the surface of the PEEK was sputter-coated with a thin bilayer-film consisting of a commercially pure titanium (Ti) layer with a thickness of 90 nm and a hydroxyapatite layer with a thickness of 200 nm derived from simulated body fluid (SBF-HA). A specimen of PEEK coated only with Ti was used in peeling tests to determine the adhesive strength of the interface between the two materials, which was found to be 2.55 +/- 0.45 MPa. Tensile tests were also carried out, and it was found that no exfoliation of the Ti film occurred until an ultimate strain of 129% was reached. In a cell culture test using mouse osteoblast on the bilayer-coated PEEK, cell proliferation following 168 h of culturing was 1.3 times higher on the SBF-HA than on synthetic hydroxyapatite, and 2.4 times higher than that on the Ti-coated PEEK. In addition, the proliferation on the Ti-coated PEEK was 2.1 times higher than that on uncoated PEEK.
  • M. Kusunoki; T. Matsuda; N. Fujita; Y. Sakoishi; R. Iguchi; S. Hontsu; H. Nishikawa; T. Hayami
    BIOMMEDD V TRANS TECH PUBLICATIONS LTD 583 47 - 50 1013-9826 2014 [Refereed]
     
    A technique to control the crystallinity of hydroxyapatite (HA) was investigated for applications such as dentistry, regenerative medicine, cell culture scaffolding, and bio-sensors. An amorphous HA film was first produced by pulsed laser deposition. After deposition, it was separated from a substrate as a free-standing sheet. Annealing was then performed to control the crystallinity of the sheet. It was found that conventional annealing in an electric oven was not suitable for HA sheets, because it led to curling and cracking. Since such problems were assumed to be caused by thermal stress, annealing was next carried out with the HA sheet enclosed in HA powder in the center of a metal capsule. This method allowed annealing to be successfully carried out without causing any curling or cracking. Uniform pieces with dimensions of 10 mm x 10 mm cut from a large HA sheet were annealed at temperatures of 200 to 800 degrees C and then examined using X-ray diffraction. It was found that the intensity of the diffraction peaks associated with crystalline HA changed with annealing temperature, and that the strongest peaks were observed for the sample annealed at 500 degrees C. These results indicate that the crystallinity of the HA sheet can be controlled using the proposed method.
  • Restoration of tooth enamel using a flexible hydroxyapatite sheet coated with tricalcium phosphate
    Yamamoto, E; Kato, N; Isai, A; Nishikawa, H; Kusunoki, M; Yoshikawa, K; Hontsu, S
    Bioceramics Development and Applications S1 - S006 2013/12 [Refereed]
  • Ultrathin amorphous calcium phosphate freestanding sheet for dentin tubule sealing
    Kato, N; Yamamoto, E; Isai, A; Nishikawa, H; Kusunoki, M; Yoshikawa, K; Hontsu, S
    Bioceramics Development and Applications S1 - S007 2013/12 [Refereed]
  • Yasuhiro Sakoishi; Ryo Iguchi; Hiroaki Nishikawa; Shigeki Hontsu; Takashi Hayami; Masanobu Kusunoki
    APPLIED PHYSICS EXPRESS IOP PUBLISHING LTD 6 (11) 115501.1-115501.3  1882-0778 2013/11 [Refereed]
     
    A method of fabricating c-axis-oriented hydroxyapatite film on a quartz crystal microbalance (QCM) sensor was investigated. ZnO was used as a template to obtain a hexagonal hydroxyapatite crystal of uniaxial orientation. The ZnO was grown as a c-axis film on a Au/quartz with the surface structure of a QCM sensor. Under optimized conditions, hydroxyapatite was deposited by pulsed laser deposition. X-ray diffraction showed the hydroxyapatite film to be oriented along the c-axis. Because Au and ZnO are applied to many devices, the anisotropic properties of hydroxyapatite may be incorporated into these devices as well as QCM sensors. (C) 2013 The Japan Society of Applied Physics
  • 本津 茂樹; 西川 博昭; 楠 正暢
    Journal of bio-integration バイオインテグレーション学会 3 (1) 67 - 70 2186-2923 2013/09 [Refereed]
  • T. Nishigaki; H. Nishikawa; M. Kusunoki; S. Hontsu
    Bioceramics Development and Applications S1-008 2013/05 [Refereed]
  • レーザーアブレーション法により作製したハイドロキシアパタイト薄膜の圧電性の評価
    西垣 勉; 西川 博昭; 楠 正暢
    Journal of bio-integration 3 71 - 74 2013 [Refereed]
  • 本津茂樹; 吉川一志; 以西新; 山本衛; 加藤暢宏; 西川博昭; 楠正暢; 橋本典也; 山本一世
    日本歯科理工学会誌 (一社)日本歯科理工学会 32 (2) 125 - 125 1884-4421 2013 [Refereed]
  • E. Yamamoto; N. Kato; H. Nishikawa; M. Kusunoki; T. Hayami; K. Yoshikawa; S. Hontsu
    BIOCERAMICS 24 TRANS TECH PUBLICATIONS LTD 529-530 522 - + 1013-9826 2013 [Refereed]
     
    Tooth enamel cannot be reconstructed once it is destroyed immoderately. Hydroxyapatite (HAp) thin sheet can potentially be used for a novel dental biomaterial to repair the enamel. Using a pulsed laser deposition (PLD) method, we have successfully created a flexible HAp sheet of less than a few micrometers in thickness. Due to its flexibility, the HAp sheet is tightly adhered on curved surfaces at the target site. In the present study, we newly developed double-layered sheets composed of HAp film coated with tricalcium phosphate (TCP) thin layer. The HAp/TCP sheet was adhered to the extracted human teeth using a calcium phosphate solution for 3 days. The adhesive strength between the HAp/TCP sheet and tooth enamel was evaluated by quasi-static tensile tests. Moreover, the interface structure between them was observed by a scanning electron microscopy. As a result of the mechanical evaluation, the adhesive strength was greater than approximately 2.5 MPa. The electron microscopic observation revealed that the sheet was partially fused with the enamel. These findings suggest the possibility that enamel defects are repaired using the HAp/TCP sheet for a short duration.
  • 穴あきアパタイトシートを用いたエナメル質の修復
    本津 茂樹; 以西 新; 山本 衛; 加藤 暢宏; 西川 博昭; 楠 正暢; 速水 尚; 吉川 一志
    日本バイオマテリアル学会大会予稿集 日本バイオマテリアル学会 シンポジウム2012 197 - 197 2012/11
  • 本津 茂樹; 西川 博昭; 楠 正暢
    Journal of the Society of Inorganic Materials, Japan : セッコウ・石灰・セメント・地球環境の科学 無機マテリアル学会 19 (361) 504 - 510 1345-3769 2012/11
  • HONTSU SHIGEKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU
    J Soc Inorg Mater Jpn 無機マテリアル学会 19 (361) 504 - 510 1345-3769 2012/11
  • HONTSU Shigeki; NISHIKAWA Hiroaki; KUSUNOKI Masanobu
    Journal of the Society of Inorganic Materials, Japan : セッコウ・石灰・セメント・地球環境の科学 無機マテリアル学会 19 (361) 504 - 510 1345-3769 2012/11 [Refereed]
  • Shigeki Hontsu; Yoshiya Hashimoto; Yoshihiro Yoshikawa; Masanobu Kusunoki; Hiroaki Nishikawa; Akihiro Ametani
    JOURNAL OF HARD TISSUE BIOLOGY JOURNAL HARD TISSUE BIOLOGY 21 (2) 181 - 187 1341-7649 2012/04 [Refereed]
     
    To develop an improved surface conformation of titanium web (TW) scaffold, we examined the in vitro and in vivo biocompatibility of a thin hydroxyapatite (HA) deposited by pulsed laser ablation. Thin HA film was deposited on titanium discs using an pulsed laser operating at a repletion rate of 10 Hz and annealed by heating at 380 degrees C for 1 h. The presence of HA not only along the surface but also in the TW inner region was confirmed by the elementary mapping of calcium, phosphorous, and titanium. X-ray diffraction pattern showed that crystalline HA was present in the HA coating. Microscopic images after actin staining with rhodamine phalloidin revealed that the spread of clonal stromal cells was markedly greater on HA coating than on untreated TW. When infused with clonal stromal cells, the HA-coated TW could indeed generate bone formation in the backs of nude mice. However, the appearance of new bone was not enhanced by the HA coating, likely because air in the porous scaffold during cell loading reduces the cell-scaffold contact. Mild vacuum loading techniques might enable differences of osteo-differentiation between HA-coated TW and non-coated TW to emerge.
  • Hontsu Shigeki; Yoshikawa Kazushi; Matsuda Taiyo; Kusunoki Masanobu; Maruyama Toshiro; Yamamoto Ei; Kato Nobuhiro; Nishikawa Hiroaki
    Preprints of Annual Meeting of The Ceramic Society of Japan
    Preprints of Fall Meeting of The Ceramic Society of Japan The Ceramic Society of Japan 2012 (0) 706 - 706 2012 [Refereed]
     
    We have succeeded to regenerate tooth enamel by using flexible hydroxyapatite (HAp) sheets. In this study, we tried enamel regeneration by composite sheet which deposited a α-TCP thin film on the HAp sheet. The HAp/α-TCP composite sheets are stick onto polished surface of extracted teeth with calcium phosphate solution. The time dependence of the composition at the interfaces between the composite sheet and the teeth surfaces was evaluated by an X-ray diffraction (XRD) method. After one day past, the XRD pattern completely matched with that of teeth enamel. Also, the adherence between composite sheet and teeth enamel was evaluated by tensile test.
  • 本津茂樹; 吉川一志; 以西新; 山本衛; 加藤暢宏; 西川博昭; 楠正暢; 橋本典也; 山本一世
    日本歯科理工学会誌 (一社)日本歯科理工学会 31 (5) 445 - 445 1884-4421 2012 [Refereed]
  • 本津茂樹; 樋口裕一; 橋本典也; 西川博昭; 楠正暢; 小正裕
    Journal of bio-integration バイオインテグレーション学会 2 (1) 119 - 123 2186-2923 2012 [Refereed]
  • 本津茂樹; 吉川一志; 松田太陽; 加藤暢宏; 西川博昭; 楠正暢; 橋本典也; 山本一世
    日本歯科理工学会誌 (一社)日本歯科理工学会 31 (2) 112 - 112 1884-4421 2012 [Refereed]
  • 本津茂樹; 樋口裕一; 橋本典也; 西川博昭; 楠正暢; 小正裕
    Journal of bio-integration バイオインテグレーション学会 2 (1) 119 - 123 2186-2923 2012 [Refereed]
  • Daisuke Ito; Katsumi Kotani; Tomoki Miyake; Hiroaki Nishikawa; Shigeki Hontsu; Masanobu Kusunoki
    IEEJ Transactions on Electronics, Information and Systems Institute of Electrical Engineers of Japan 132 (11) 1722 - 1726 1348-8155 2012 [Refereed]
     
    We studied a method to obtain superconductivity even in very thin films of YBa2Cu3Oy (YBCO). These thinner YBCO films will be able to be applied to optics/superconductivity (opt/super) converters with high optical sensitivity. Opt/super converters composed of YBCO nano-bridges or nano-wires require a low critical current that is determined by the film thickness. According to X-ray diffraction, critical temperature (Tc) and residual resistivity ratio for the substrates of MgO (100), SrTiO 3 (100) and NdGaO3 (110), superconducting features are influenced by the lattice mismatching layer in YBCO closing to a hetero-epitaxy interface between YBCO and single crystal substrate. YBCO films with different thicknesses varying from 80 to 10 nm were prepared on SrTiO3, using a suitable temperature. The values of Tc slightly decreased when reducing YBCO thickness from 80 to 20 nm, and then declined sharply at less than 20 nm. It is considered that a layer in the beginning of deposition less than 20 nm causes stress in the crystal lattice. The Tc of 20 nm YBCO film on SrTiO3 was 80.8 K. It can work above liquid N2 temperature. © 2012 The Institute of Electrical Engineers of Japan.
  • Shigeki Hontsu; Yoshiya Hashimoto Dr.; Yoshihiro Yoshikawa; Masanobu Kusunoki; Hiroaki Nishikawa; Akihiro Ametani
    Journal of Hard Tissue Biology 21 (2) 181 - 188 1341-7649 2012 [Refereed]
     
    To develop an improved surface conformation of titanium web (TW) scaffold, we examined the in vitro and in vivo biocompatibility of a thin hydroxyapatite (HA) deposited by pulsed laser ablation. Thin HA film was deposited on titanium discs using an pulsed laser operating at a repletion rate of 10 Hz and annealed by heating at 380°C for 1 h. The presence of HA not only along the surface but also in the TW inner region was confirmed by the elementary mapping of calcium, phosphorous, and titanium. X-ray diffraction pattern showed that crystalline HA was present in the HA coating. Microscopic images after actin staining with rhodamine phalloidin revealed that the spread of clonal stromal cells was markedly greater on HA coating than on untreated TW. When infused with clonal stromal cells, the HA-coated TW could indeed generate bone formation in the backs of nude mice. However, the appearance of new bone was not enhanced by the HA coating, likely because air in the porous scaffold during cell loading reduces the cell-scaffold contact. Mild vacuum loading techniques might enable differences of osteo-differentiation between HA-coated TW and non-coated TW to emerge. © 2012 The Hard Tissue Biology Network Association Printed in Japan, All rights reserved.
  • S. Hontsu; N. Kato; E. Yamamoto; H. Nishikawa; M. Kusunoki; T. Hayami; K. Yoshikawa
    Key Engineering Materials 493-494 615 - 619 1013-9826 2012 [Refereed]
     
    Before a tooth erupts, the ameloblasts are lost, which means that the tooth enamel does not regenerate itself after tooth eruption. In the present study, we attempt to regenerate the tooth enamel artificially using a flexible hydroxyapatite (HAp) sheet. First, a HAp film was deposited on a soluble substrate by pulsed laser deposition (PLD) using an ArF excimer laser. Next, the HAp film was collected as a freestanding sheet by dissolving the substrate using a solvent. The HAp sheet was adhered to the extracted human teeth using a calcium phosphate solution. The variation of the crystal structure of the HAp sheet with time was investigated by X-ray diffraction analysis. Furthermore, the variation in the mechanical characteristics with time between the HAp sheet and dental enamel were evaluated using tensile and scratch tests. The results suggest that the HAp sheet became fused to the tooth enamel within approximately one week. © (2012) Trans Tech Publications.
  • フレキシブル極薄フッ素化アパタイトシートの作製
    本津 茂樹; 丸山 敏朗; 加藤 暢宏; 西川 博昭; 楠 正暢; 速水 尚; 橋本 典也
    日本バイオマテリアル学会大会予稿集 日本バイオマテリアル学会 33回 79 - 79 2011/11
  • HONTSU SHIGEKI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI
    セラミックス 日本セラミックス協会 46 (9) 745 - 749 0009-031X 2011/09 [Refereed]
  • HONTSU Shigeki; KUSUNOKI Masanobu; NISHIKAWA Hiroaki
    Ceramics Japan 日本セラミックス協会 46 (9) 745 - 749 0009-031X 2011/09 [Refereed]
  • Takashi Hayami; Shigeki Hontsu; Yuichi Higuchi; Hiroaki Nishikawa; Masanobu Kusunoki
    CLINICAL ORAL IMPLANTS RESEARCH WILEY-BLACKWELL 22 (7) 774 - 776 0905-7161 2011/07 [Refereed]
     
    Objective: To impart rapid and durable osteoconductivity to implants, a commercial titanium screw implant was coated with stoichiometric hydroxyapatite (HA; 50 nm thick), and then with bovine hydroxyapatite (B-HA; 300 nm thick) using the pulsed laser deposition technique. As control specimens, a commercial implant coated with HA (20 mu m thick) using the flame spraying method (sprayed implant) and a simple titanium implant (basic implant) was used. Methods: The osteoconductivities of these three types of implant, after implantation for 4-24 weeks, were histologically evaluated. Results: Peeling of HA from the sprayed implant was observed by scanning electron microscopic observation. In the fourth postoperative week, the bilayered implant was already closely adhered to bone. On the other hand, the basic implant was surrounded by a gap containing connective tissue. With the sprayed implant, the bone adhered to the thick HA coating. Conclusion: The bilayer deposition technique supplies quick and long-term fixation of implants to bone, because the B-HA film dissolves to aid osteoconduction right immediately after implantation and the HA thin film maintains osteoconduction without dissolution. Neither of the thin-film fractures easily compared with thick coatings.
  • 本津 茂樹; 楠 正暢; 西川 博昭
    Function & materials シーエムシー出版 31 (5) 63 - 68 0286-4835 2011/05
  • HONTSU SHIGEKI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; YOSHIKAWA KAZUSHI
    機能材料 31 (5) 63 - 68 0286-4835 2011/04 [Refereed]
  • SungChul Lee; Mohammod M. Islam; Michael E. Rogers; Masanobu Kusunoki; Akiyoshi Okada; Nobuo Takeshima
    JOURNAL OF STRENGTH AND CONDITIONING RESEARCH LIPPINCOTT WILLIAMS & WILKINS 25 (4) 1089 - 1097 1064-8011 2011/04 [Refereed]
     
    Lee, S, Islam, MM, Rogers, ME, Kusunoki, M, Okada, A, and Takeshima, N. Effects of hydraulic-resistance exercise on strength and power in untrained healthy older adults. J Strength Cond Res 25(4): 1089-1097, 2011-The purpose of this study was to determine the efficacy of hydraulic-resistance exercise (HDRE) in improving strength and power in healthy older adults. Thirty-nine older adults (68.6 +/- 4.9 years; 15 men, 24 women) were divided into a training group or control group (CON). Hydraulic-resistance exercise consisted of a 12-week supervised program, 50 min.d(-1), 3 d.wk(-1). Hydraulic-resistance exercise was used for 10 exercises: Chest press and pull, shoulder press and pull, low back flexion and extension squat, leg adduction/abduction, leg press, and elbow extension/flexion. The number of the sets and the hydraulic-resistance dial setting (D) were gradually increased in 3 stages during the 12-week program. Strength, rating of perceived exertion, and relative intensity during exercise increased significantly from stage to stage whereas repetition velocity decreased. Total work was higher in the second stage compared with the first but lower in the final stage because of reduced repetitions. Peak torque at D2 and D11 increased (p < 0.05) for knee extension (58 and 9%) and flexion (94 and 21%), chest press (35 and 12%) and pull (29 and 14%), shoulder press (14 and 18%) and pull (75 and 18%), and low back flexion (59 and 46%) and extension (84 and 34%). Peak power at D2 and D11 also increased (p, 0.05) for knee extension (140 and 26%) and flexion (96 and 36%), chest press (54 and 28%) and pull (62 and 23%), shoulder press (55 and 31%) and pull (159 and 30%), and low back flexion (177 and 127%) and extension (104 and 66%). There were no significant changes in the CON. Hydraulic-resistance exercise elicits significant improvements in strength and power in older adults. Therefore, HDRE is an effective form of resistance training that provides benefits using low and moderate intensity of training for older adults.
  • Masumi Iijima; Hiroyasu Kadoya; Satoko Hatahira; Shingo Hiramatsu; Giman Jung; Aaron Martin; John Quinn; Joohee Jung; Seong-Yun Jeong; Eun Kyung Choi; Takeshi Arakawa; Fumiyo Hinako; Masanobu Kusunoki; Nobuo Yoshimoto; Tomoaki Niimi; Katsuyuki Tanizawa; Shun'ichi Kuroda
    BIOMATERIALS ELSEVIER SCI LTD 32 (6) 1455 - 1464 0142-9612 2011/02 [Refereed]
     
    To enhance the sensitivities and antigen-binding capacities of immunosensors, oriented immobilization of antibodies on the surface of the sensor chip is critical, but to date, this has not been adequately achieved. We describe a way of adsorbing immunoglobulin (Ig) proteins onto 32-nm bio-nanocapsules (BNCs) through IgG Fc-binding domains derived from Staphylococcus aureus protein A (ZZ-BNC). This arrangement permits similar to 60 molecules of mouse total IgG bind to ZZ-BNC and all the IgG Fv regions to be displayed outwardly for the effective binding of antigens. ZZ-BNCs adsorbed onto the gold surface of the sensor chip of the quartz crystal microbalance (QCM) could markedly enhance the sensitivity and antigen-binding capacity of the chip. On the sensor chip of surface plasmon resonance (SPR), antibodies on the ZZ-BNCs showed higher affinities to each antigen than those on protein A. The BNC-coated sensor chip is very stable, and should prove useful for various immunosensor applications due to oriented immobilization of antibodies. (C) 2010 Elsevier Ltd. All rights reserved.
  • Hontsu Shigeki; Yamamoto Kazuyo; Kato Nobuhiro; Yamamoto Ei; Maruyama Toshiro; Matsuda Taiyo; Nisikawa Hiroaki; Kusunoki Masanobu; Hayami Takashi; Yoshikawa Kazushi
    Preprints of Annual Meeting of The Ceramic Society of Japan
    Preprints of Fall Meeting of The Ceramic Society of Japan The Ceramic Society of Japan 2011 (0) 231 - 231 2011 [Refereed]
     
    We have attempted to regenerate tooth enamel artificially by using flexible hydroxyapatite (HAp) sheets. The sheets are affixed onto polished surface of extracted teeth with calcium phosphate solution. The time-dependent variation of the composition at the interfaces between the HAp sheets and the teeth surfaces was evaluated by an X-ray diffraction (XRD) method. After one week past, the XRD pattern completely matched with that of teeth enamel. The adherence between HAp sheet and teeth enamel was evaluated by tensile test using a stainless rod with a diameter of 3 mm glued onto the HAp sheet. The test validated that the adherence between HAp sheet and tooth enamel is much stronger than 3.4 MPa in affixing post-21 days.
  • Control of Ca/P ratio of hydroxyapatite thin film by pulsed laser deposition
    H. Nishikawa; R. Yoshikawa; H. Nakajima; M. Kusunoki; T. Hayami; S. Hontsu
    24th European Conference on Biomaterials - Annual Conference of the European Society for Biomaterials 2011 [Refereed]
  • S. Hontsu; K. Yoshikawa; N. Kato; Y. Kawakami; T. Hayami; H. Nishikawa; M. Kusunoki; K. Yamamoto
    JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY AUSTRALIAN CERAMIC SOCIETY 47 (1) 11 - 13 0004-881X 2011 [Refereed]
     
    A freestanding hydroxyapatite (HAp) sheet of 5 similar to 10 mu m thickness was successfully prepared by a novel method. After depositing the thin HAp film on a soluble substrate by pulsed laser deposition (PLD) technique, the HAp film was collected as a freestanding sheet by dissolving the substrate using a solvent. Thereafter, HAp sheets were directly attached to enamel and dentin surfaces of extracted human teeth. Artificial saliva was sprayed every third day, and the course was observed for 90 days. Observation of the enamel-HAp and dentin-HAp interface by scanning electron microscopy revealed that the HAp sheet had stuck to the enamel and dentin surface.
  • Scratch Test of Simulated Body Fluid-derived Hydroxyapatite Film on Biomedical Titanium Substrates
    速水尚; 西川博昭; 楠正暢; 松村和明; 本津茂樹; 大政光史; 澤井徹
    The 3rd International Congress on Ceramics, Osaka 2010/11 [Refereed]
     
    ハイドロキシアパタイトの接着強度に対する膜厚と化学組成の影響について，ナノスクラッチ試験を用いて検討した。パルスレーザー堆積法を用いて医療用チタンを化学量論的ハイドロキシアパタイトと擬似体液由来アパタイトで被覆し，基材密着性と剥離挙動をナノスクラッチテストによって詳細に観察した．
  • HONTSU SHIGEKI; NAKAMORI MASAYA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU
    Mem Fac Biol Oriented Sci Technol Kinki Univ (26) 87 - 91 1342-7202 2010/09 [Refereed]
  • KUSUNOKI MASANOBU; WADA TAKUTO; KANDA HIROTAKA; TOGO HIDETAKA; HAYAMI TAKASHI; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    Mem Fac Biol Oriented Sci Technol Kinki Univ 25 (25) 1 - 5 1342-7202 2010/03 [Refereed]
  • Masanobu Kusunoki; Yoshiaki Kawakami; Taiyo Matsuda; Hiroaki Nishikawa; Takashi Hayami; Shigeki Hontsu
    APPLIED PHYSICS EXPRESS IOP PUBLISHING LTD 3 (10) 107003.1-107003.3  1882-0778 2010 [Refereed]
     
    A large hydroxyapatite (HA) sheet of 50 mm diameter was constructed using a new fabrication process. The HA sheet was prepared by pulsed laser deposition (PLD) and then separated from the substrate. An intermediate layer of spin-coated photoresist between the PLD film and the substrate was dissolved in acetone to enable the separation. Sufficient crystallinity was obtained after postannealing. The area of the HA sheet prepared by the proposed process was approximately 20 times larger than that of the HA sheet prepared by the previous process. The proposed process can also be used for larger sheets. The HA sheet has promise in medical and dental applications. (C) 2010 The Japan Society of Applied Physics
  • Masanobu Kusunoki; Yoshitaka Togo; Takuto Wada; Yoshiya Hashimoto; Yoshiya Hashimoto; Hiroaki Nishikawa; Shigeki Hontsu
    IEEJ Transactions on Electronics, Information and Systems The Institute of Electrical Engineers of Japan 129 (11) 2014 - 2018 0385-4221 2009/11 [Refereed]
     
    We developed a patterning technique for nerve cells that uses polytetrafluoroethylene (PTFE) and poly-D-lysine (PDL). The PDL layer on the PTFE substrate acted as a buffer for nerve cell adhesion, while Ar ion-irradiated areas on PTFE were used for separation of nerve cells. This structure was then used as a scaffold. A matrix circuit of nerve cells with dendrites or axons was subsequently observed on the scaffold after a week of cell culture. The Ar ion-irradiated area exhibited graphite or amorphous carbon, and PDL was detached from carbon grains by mechanical stress during cell culture. A possible explanation for the adhesion between PDL and PTFE is the van der Waals force. The stress between PDL/PTFE was reduced by the flexibility of PDL gel, which prevented separation of PDL from PTFE.
  • Daisuke Koizumi; Nicole L. Rogers; Michael E. Rogers; Mohammod M. Islam; Masanobu Kusunoki; Nobuo Takeshima
    JOURNAL OF PHYSICAL ACTIVITY & HEALTH HUMAN KINETICS PUBL INC 6 (4) 467 - 474 1543-3080 2009/07 [Refereed]
     
    Background: Although many Japanese older adults spend more than an hour each day walking for exercise, the intensity is often lower than the minimum level associated with various health benefits. The purpose of this study was to evaluate the efficacy of a lifestyle physical activity intervention on improving quantity and quality of daily physical activity (DPA) as well as cardiorespiratory endurance in community-dwelling older women. Methods: 68 women (60-78 yr of age) were randomly assigned to either a lifestyle physical activity intervention group (LIFE) or control group. During the 12-wk intervention, feedback based on accelerometer DPA data (number of daily steps (STEPS) and time spent performing daily moderate intensity physical activity (MPA) was provided to each participant in LIFE every two weeks. Cardiorespiratory endurance was evaluated using the 12-Minute Walk Test (12-MW). Results: Following the 12-wk intervention, significant group interactions were observed for STEPS, MPA, and cardiorespiratory endurance. LIFE increased STEPS by 16%, MPA by 53%, and the distance walked during the 12-MW by 10%. Conclusions: Promotion of DPA using accelerometers can significantly improve quantity and quality of daily physical activity as well as cardiorespiratory endurance in older women.
  • Daisuke Koizumi; Nicole L. Rogers; Michael E. Rogers; Mohammod M. Islam; Masanobu Kusunoki; Nobuo Takeshima
    Journal of Physical Activity and Health Human Kinetics Publishers Inc. 6 (4) 467 - 474 1543-3080 2009 
    Although many Japanese older adults spend more than an hour each day walking for exercise, the intensity is often lower than the minimum level associated with various health benefits. The purpose of this study was to evaluate the efficacy of a lifestyle physical activity intervention on improving quantity and quality of daily physical activity (DPA) as well as cardiorespiratory endurance in community-dwelling older women. Methods: 68 women (60-78 yr of age) were randomly assigned to either a lifestyle physical activity intervention group (LIFE) or control group. During the 12-wk intervention, feedback based on accelerometer DPA data (number of daily steps (STEPS) and time spent performing daily moderate intensity physical activity (MPA) was provided to each participant in LIFE every two weeks. Cardiorespiratory endurance was evaluated using the 12-Minute Walk Test (12- MW). Results: Following the 12-wk intervention, significant group interactions were observed for STEPS, MPA, and cardiorespira- tory endurance. LIFE increased STEPS by 16%, MPA by 53%, and the distance walked during the 12-MW by 10%. Conclusions: Promotion of DPA using accelerometers can significantly improve quantity and quality of daily physical activity as well as cardiorespiratory endurance in older women. © 2009 Human Kinetics, Inc.
  • ヒト間葉系幹細胞とハイドロキシアパタイトシートを組み合わせた新規骨再生誘導メンブレンの開発
    橋本典也; 谷中直樹; 楠正暢; 西川博昭; 本津茂樹; 武田昭二
    日本再生歯科医学会誌 7 82  2009 [Refereed]
  • 極薄アパタイトシートの軟組織再生足場としての応用
    浅野弘樹; 東郷秀孝; 橋本典也; 楠正暢; 西川博昭; 速水尚; 本津茂樹
    再生医療 8 260  2009 [Refereed]
  • Hiroaki Nishikawa; Ryota Hatanaka; Masanobu Kusunoki; Takashi Hayami; Shigeki Hontsu
    APPLIED PHYSICS EXPRESS JAPAN SOC APPLIED PHYSICS 1 (8) 088001.1-088001.3 - 0880013 1882-0778 2008/08 [Refereed]
     
    Hydroxyapatite (HAp) is one of the most widely used materials for tissue culture scaffolding in regenerative medicine. To apply HAp as a suitable material for tissue culture scaffolding, we have developed freestanding HAp membranes that can be directly transplanted "as is" into a diseased site after tissue culturing. These freestanding HAp membranes are highly biocompatible, provide early cell proliferation and differentiation, and their flexibility allows some degree of configuration to the target site. This tissue culture scaffold is ideal from the standpoint of harvesting tissue and directly transplanting it to the diseased site. (C) 2008 The Japan Society of Applied Physics.
  • HAYAMI Takashi; NISHIKAWA Hiroaki; HIGUCHI Yuichi; HASHIMOTO Noriya; KUSUNOKI Masanobu; HONTSU Shigeki; SHIBUE Tadashi; YAMAMOTO Masao
    Journal of JSEM 日本実験力学会 8 (2) 127 - 132 1884-4219 2008/06
  • Sung Chul Lee; Masanobu Kusunoki; Motoo Watanabe; Tomomi Yamada; Nobuo Takeshima; Michael E. Rogers
    MEDICINE AND SCIENCE IN SPORTS AND EXERCISE LIPPINCOTT WILLIAMS & WILKINS 40 (5) S370 - S370 0195-9131 2008/05 [Refereed]
  • HAYAMI Takashi; NISHIKAWA Hiroaki; HIGUCHI Yuichi; HASHIMOTO Noriya; KUSUNOKI Masanobu; HONTSU Shigeki; SHIBUE Tadashi; YAMAMOTO Masao
    Proceedings of the Japan Society for Photoelasticity The Japanese Society for Experimental Mechanics 8 (2) 127 - 132 1884-4219 2008 
    The fixation between a beads-type porous-surfaced dental implant and a surrounding bone is dependent on 3-dimensional anchoring effect which new bones develop into a porous structure. The speed of a bone ingrowth into the porous structure and the good fixation to bone is strongly related to biocompatibility of the implant. To impart a functional fixation by biointegration to the implant, in this study, a pulsed laser deposition (PLD) technique was used to form 300 nm thick hydroxyapatite (HA) film even on the depths of the porous structure. Through X-ray diffraction (XRD) and energy dispersive X-ray spectrometry (EDX) analysis, it was found that HA was crystallized and was deposited on the depths of interconnecting pores of complicated shape. The implants were placed into posterior regions of completely edentulous mandible of a canine. The bone ingrowth condition was scanned by CT scanner. In three weeks after operation, the bone ingrowth speed in the HA-deposited implant was increased as compared with the non-HA-deposited one. In five weeks after operation, no particular differences on the bone ingrowth between the HA-deposited and non-HA-deposited implants were found. HA thin film deposition on a porous-suerfaced implant was effective in the improvement of functional bone fixation.
  • エキシマレーザーアブレーション法によるアパタイト被覆三次元チタン繊維細胞足場の開発
    橋本典也; 吉川美弘; 浅野弘樹; 楠正暢; 西川博昭; 本津茂樹; 池尾隆; 飴谷彰洋; 吉野和卓; 久保木義徳
    日本再生歯科医学会誌 6 56  2008 [Refereed]
  • Y. Hashimoto; M. Kawashima; R. Hatanaka; M. Kusunoki; H. Nishikawa; S. Hontsu; M. Nakamura
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE SPRINGER 19 (1) 327 - 333 0957-4530 2008/01 [Refereed]
     
    In the current studies, we deposited ultra-thin hydroxyapatite films on a pure titanium substrate by pulsed laser deposition, and we examined the effects of these surfaces on rat bone marrow (RBM) cells. This method allowed deposition of 500-, 2,000-, and 5,000-angstrom-thick hydroxyapatite films. X-ray diffraction showed that the amorphous films recrystallized to a hydroxyapatite crystal structure after annealing. The proliferation of RBM cells was unaffected by the hydroxyapatite films, but osteocalsin and alkaline phosphatase mRNA and protein levels were elevated in cells grown on 2,000- and 5,000-angstrom-thick films. These results indicate that ultra-thin hydroxyapatite films generated by pulsed laser deposition are better at promoting osteogenesis than pure titanium surfaces.
  • 李 成哲; 渡辺 元夫; 小泉 大亮; 長谷川 龍一; 山田 ともみ; 竹島 伸生; 楠 正暢
    体力科学 (一社)日本体力医学会 56 (6) 882 - 882 0039-906X 2007/12 [Refereed]
  • KUSUNOKI Masanobu; UEDA Ryouhei; NISHIKAWA Hiroaki; HONTSU Shigeki; LEE Sung chul; KOIZUMI Daisuke; NASU Eriko; TAKESHIMA Nobuo
    Japanese journal of physiological anthropology 日本生理人類学会 11 (4) 191 - 196 1342-3215 2007/11 [Refereed]
     
    We developed a real-time measurement system for quantities of movement using hydraulic resistance exercise (HRE) machine-based circuit training that is a promising method for health promotion of aged people. Muscular strength and displacement of motion are measured as fundamental quantities with hydraulic pressure gauges that are connected to the hydraulic cylinders of HRE machine. The time series data of the fundamental quantities are transferred to the computer, by using them, the velocities of motion, the angles of bend, the muscle powers and total energy consumption are calculated and displayed by graphical representation on the monitor. Batch processing by single computer was performed to all resistance machines in circuit training. This system makes possible to accumulate the scientific proofs steadily for the hydraulic resistance exercise.
  • Y. Hashimoto; M. Kawashima; R. Hatanaka; M. Kusunoki; H. Nishikawa; S. Hontsu; M. Nakamura
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE SPRINGER 18 (7) 1457 - 1464 0957-4530 2007/07 [Refereed]
     
    In the current studies, we deposited ultra-thin hydroxyapatite films on a pure titanium substrate by pulsed laser deposition, and we examined the effects of these surfaces on rat bone marrow (RBM) cells. This method allowed deposition of 500-, 2000-, and 5000-angstrom-thick hydroxyapatite films. X-ray diffraction showed that the amorphous films recrystallized to a hydroxyapatite crystal structure after annealing. The proliferation of RBM cells was unaffected by the hydroxyapatite films, but osteocalsin and alkaline phosphatase mRNA and protein levels were elevated in cells grown on 2000- and 5000-angstrom-thick films. These results indicate that ultra-thin hydroxyapatite films generated by pulsed laser deposition are better at promoting osteogenesis than pure titanium surfaces.
  • Takashi Hayami; Kazuaki Matsumura; Masanobu Kusunoki; Hiroaki Nishikawa; Shigeki Hontsu
    MATERIALS LETTERS ELSEVIER SCIENCE BV 61 (13) 2667 - 2670 0167-577X 2007/05 [Refereed]
     
    To impart good cell adhesion to poly(vinyl alcohol) hydrogel (PVA-H) as an artificial articular cartilage, hydroxyapatite thin film 300 nm thick was deposited by a pulsed laser deposition technique on PVA-H, which has virtually no cell adhesion. A cell culture method was used to study the effect of hydroxyapatite deposition on PVA-H upon cell adhesion among mouse fibroblasts. The cell adhesion of water content 33% PVA-H coated with the amorphous hydroxyapatite film showed a maximum as high as that of commonly used tissue culture dishes. This technique was also effective for improving cell adhesion, even on a higher water content (53%) PVA-H. This is a novel technique to improve the biocompatibility and attachment of PVA-H and with the underlying bone and natural cartilage. (C) 2006 Elsevier B.V. All rights reserved.
  • Takashi Hayami; Kazuaki Matsumura; Masanobu Kusunoki; Hiroaki Nishikawa; Shigeki Hontsu
    MATERIALS LETTERS ELSEVIER SCIENCE BV 61 (13) 2667 - 2670 0167-577X 2007/05 [Refereed]
     
    To impart good cell adhesion to poly(vinyl alcohol) hydrogel (PVA-H) as an artificial articular cartilage, hydroxyapatite thin film 300 nm thick was deposited by a pulsed laser deposition technique on PVA-H, which has virtually no cell adhesion. A cell culture method was used to study the effect of hydroxyapatite deposition on PVA-H upon cell adhesion among mouse fibroblasts. The cell adhesion of water content 33% PVA-H coated with the amorphous hydroxyapatite film showed a maximum as high as that of commonly used tissue culture dishes. This technique was also effective for improving cell adhesion, even on a higher water content (53%) PVA-H. This is a novel technique to improve the biocompatibility and attachment of PVA-H and with the underlying bone and natural cartilage. (C) 2006 Elsevier B.V. All rights reserved.
  • Hayami Takashi; Nishikawa Hiroaki; Shibue Tadashi; Kusunoki Masanobu; Hontsu Shigeki; Yamamoto Masao
    The proceedings of the JSME annual meeting The Japan Society of Mechanical Engineers 2007 243 - 244 2007 
    To improve osteoblasts attachment to a porous implant such as artificial tooth root, plasma spray coating of hydroxyapatite (HA) has been attempted applying. However, plasma sprayed HA powders plugged up a way in holes of the porous structure which is important way of bone growth. To solve this problem, in this experiment, HA thin film 300nm thick was deposited by pulsed laser deposition (PLD) technique on the tooth root. HA thin film was reached easily to the depth of the porous structure. In 3 weeks after operation, the bone in-growth speed in HA-deposited tooth root was increased as compared with non HA-deposited one. In 5 weeks after operation, no particular difference between HA-deposited and non HA-deposited tooth roots was found. HA thin film deposition on a porous implant was effective in the improvement of osteoblast attachment.
  • Haruka Imai; Masanobu Kusunoki; Yoshiya Hashimoto; Hiroaki Nishikawa; Shigeki Hontsu
    IEEJ Transactions on Electronics, Information and Systems Institute of Electrical Engineers of Japan 127 (11) 4 - 1842 1348-8155 2007 [Refereed]
     
    Biological molecular adsorption on crystal hydroxyapatite (HAp) and amorphous Ca10(PO4)6(OH)2 was investigated using quartz crystal microbalance (QCM) method. The pulsed laser ablation (PLA) was applied to coat both kind films for QCM sensors. A crystal HAp sensor was prepared with thermal treatment during the fabrication process. An amorphous Ca10(PO4)6(OH)2 sensor was prepared without any thermal treatment. Not only crystal HAp but amorphous Ca10(PO4)6(OH)2 showed good adsorptive feature compared with conventional QCM on the market. The result showed that a low temperature deposition of HAp is adaptable to polymer-based materials for medical purposes.
  • Haruka Imai; Masanobu Kusunoki; Yoshiya Hashimoto; Hiroaki Nishikawa; Shigeki Hontsu
    IEEJ Transactions on Electronics, Information and Systems Institute of Electrical Engineers of Japan 127 (11) 4 - 1842 1348-8155 2007 [Refereed]
     
    Biological molecular adsorption on crystal hydroxyapatite (HAp) and amorphous Ca10(PO4)6(OH)2 was investigated using quartz crystal microbalance (QCM) method. The pulsed laser ablation (PLA) was applied to coat both kind films for QCM sensors. A crystal HAp sensor was prepared with thermal treatment during the fabrication process. An amorphous Ca10(PO4)6(OH)2 sensor was prepared without any thermal treatment. Not only crystal HAp but amorphous Ca10(PO4)6(OH)2 showed good adsorptive feature compared with conventional QCM on the market. The result showed that a low temperature deposition of HAp is adaptable to polymer-based materials for medical purposes.
  • 小泉 大亮; 李 成吉吉; 那須 英里子; 竹島 伸生; 楠 正暢
    体力科學 日本体力医学会 55 (6) 915 - 915 0039-906X 2006/12 [Refereed]
  • Improvement of hydroxyapatite deposition on titanium dental implant using ArF laser ablation: effect on osteoblast biocompatibility in vitro
    Y.Hashimoto; M.Kusunoki; R.Hatanaka; K.Hamano; H.Nishikawa; Y.Hosoi; S.Hontsu; M.Nakamura
    Materials in Clinical Applications 7 287 - 294 2006/06 [Refereed]
  • Sung Chul Lee; Hiroshi Takeda; Mohammod M. Islam; Ryouhei Ueda; Ryouhei Ueda; Daisuke Koizumi; Eriko Nasu; Masanobu Kusunoki; Nobuo Takeshima; Michael E. Rogers
    MEDICINE AND SCIENCE IN SPORTS AND EXERCISE LIPPINCOTT WILLIAMS & WILKINS 38 (5) S332 - S333 0195-9131 2006/05 [Refereed]
  • S Hontsu; K Agemura; H Nishikawa; M Kusunoki
    IEICE TRANSACTIONS ON ELECTRONICS IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG E89C (2) 151 - 155 0916-8524 2006/02 [Refereed]
     
    A coplanar type lumped-element 6-pole microwave Chebyshev bandpass filter (BPF) of center frequency (f(0)) 2.0 GHz and fractional bandwidth (FBW) 1.0% was designed. For the design method, theory of direct coupled resonator filters using K-inverters was employed. Coplanar type lumped-element BPFs are composed of a meander-line L and interdigital C elements. The frequency response was simulated and analyzed using an electromagnetic field simulator (Sonnet-EM). Further, the changes in fo and FBW of the BPF were also realized by the mechanical tuning method.
  • S Hontsu; K Agemura; H Nishikawa; M Kusunoki
    IEICE TRANSACTIONS ON ELECTRONICS IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG E89C (2) 151 - 155 0916-8524 2006/02 [Refereed]
     
    A coplanar type lumped-element 6-pole microwave Chebyshev bandpass filter (BPF) of center frequency (f(0)) 2.0 GHz and fractional bandwidth (FBW) 1.0% was designed. For the design method, theory of direct coupled resonator filters using K-inverters was employed. Coplanar type lumped-element BPFs are composed of a meander-line L and interdigital C elements. The frequency response was simulated and analyzed using an electromagnetic field simulator (Sonnet-EM). Further, the changes in fo and FBW of the BPF were also realized by the mechanical tuning method.
  • 高齢者の身体活動向上を目指した加速度計の有効性―個人データフィードバックの意義―
    小泉大亮; 李成てつ; 那須英里子; 竹島伸生; 楠正暢
    体力科学 55 915  2006 [Refereed]
  • 生体アパタイト超薄膜被覆インプラントの生体親和性
    本津茂樹; 川島将実; 西川博昭; 楠正暢; 速水尚; 大橋芳夫; 樋口裕一; 橋本典也
    バイオマテリアル 24 353 - 360 2006 [Refereed]
  • ハイドロキシアパタイトコート基材が神経分化誘導に及ぼす影響の検討
    竹原 俊幸; 畑中 良太; 楠 正暢; 西川 博昭; 橋本 典也; 本津 茂樹; 細井 美彦
    Memoirs of the School of Biology-Oriented Science and Technology of Kinki University 18 25 - 29 2006 [Refereed]
  • 生体アパタイト超薄膜被服インプラントの生体親和性
    本津茂樹; 川島将実; 西川博昭; 楠正暢; 速水尚; 大橋芳夫; 樋口裕一; 橋本典也
    バイオマテリアル 9 353 - 360 2006 [Refereed]
  • S Hontsu; K Iguchi; K Agemura; H Nishikawa; M Kusunoki
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 15 (2) 972 - 975 1051-8223 2005/06 [Refereed]
     
    The tunable filter has variable center frequency (f(o)) and variable bandwidth (BW) that can be adapted to software defined radio. In our mechanical tunable filter, capacitance of each element is changed by motion of dielectric plate that is located above the capacitive elements. The dielectric plates are moved by piezoelectric bimorph actuators. Tuning test of the fo in a cryocooler is performed using an actual superconducting filter fabricated with YBa2Cu3Oy thin film deposited on an MgO (100) substrate. Taking into account of the effective change of parallel capacitance to ground plane by movement of dielectric plates above the element, we choose the coplanar wave guide type filter that has the ground plane on top side of the substrate. Suitable design of the mechanically tunable superconducting lumped element filter is discussed.
  • M Kusunoki; M Kawasima; H Nishikawa; K Morimoto; T Hayami; S Hontsu; T Kawai
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS INST PURE APPLIED PHYSICS 44 (8-11) L326 - L327 0021-4922 2005 [Refereed]
     
    Protein adsorption on hydroxyapatite (HAP) thin film was investigated before and after patterning. Hydroxyapatite thin film 100 nm thick was deposited by pulsed laser deposition. The film was patterned by photolithography and wet etching with HCl solution. Proteins (phospholyrase b, bovine serum albumin, and others) labeled with fluorescein isothiocyanate (FITC) were used as the reagent. After the HAP film was soaked in the reagent and washed with pure water, a conspicuous contrast in FITC was observed between the HAP pattern and the glass substrate (or photoresist). This behavior showed that the biocompatibility of the HAP thin film was not influenced by the patterning process. Our technique for HAP thin film is adaptable for applications involving biosensors as electronic devices and scaffolds for tissue culture.
  • 生体アパタイト超薄膜被覆インプラントの生体親和性
    本津 茂樹; 川島 将実; 西川 博昭; 楠 正暢; 速水 尚; 大橋 芳夫; 樋口 裕一; 橋本 典也
    バイオマテリアル : 生体材料 : Journal of Japanese Society for Biomaterials 24 353 - 360 2005 [Refereed]
  • レーザーアブレーション法を用いた生体アパタイト薄膜の細胞適合性評価(in vitro)
    橋本典也; 畑中良太; 楠正暢; 西川博昭; 本津茂樹; 中村正明
    歯科材料・器械 24 353  2005 [Refereed]
  • M Kusunoki; M Kawasima; H Nishikawa; K Morimoto; T Hayami; S Hontsu; T Kawai
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS INST PURE APPLIED PHYSICS 44 (8-11) L326 - L327 0021-4922 2005 [Refereed]
     
    Protein adsorption on hydroxyapatite (HAP) thin film was investigated before and after patterning. Hydroxyapatite thin film 100 nm thick was deposited by pulsed laser deposition. The film was patterned by photolithography and wet etching with HCl solution. Proteins (phospholyrase b, bovine serum albumin, and others) labeled with fluorescein isothiocyanate (FITC) were used as the reagent. After the HAP film was soaked in the reagent and washed with pure water, a conspicuous contrast in FITC was observed between the HAP pattern and the glass substrate (or photoresist). This behavior showed that the biocompatibility of the HAP thin film was not influenced by the patterning process. Our technique for HAP thin film is adaptable for applications involving biosensors as electronic devices and scaffolds for tissue culture.
  • M Kusunoki; H Nishikawa; S Hontsu
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 412 (414) 1524 - 1527 0921-4534 2004/10 [Refereed]
     
    An error in surface resistance (R-s) originating from the dielectric loss (tan delta) of the parallel plate dielectric resonator using the two-resonators method is investigated. In the two-resonators method, the error in R-s(DeltaR(s)) due to the difference in tan delta(Delta tan delta) between the TE011 and TE01n mode rods is examined, considering the actual scattering of values of tan delta among sapphire rods. Taking this scattering into account, the projected value of DeltaR(s) cannot be disregarded for general R-s values (about 0.1 mOmega) of HTS films. As a comparative simulation, the case of a single resonator was also considered where the tan delta is neglected in the estimate of R-s. Due to the uncertainty and complexity in the two-resonators method, this method is not so superior to the single-rod resonator measurement by neglecting tan 6 at higher resonance frequency. (C) 2004 Elsevier B.V. All rights reserved.
  • M Mukaida; Y Yamazaki; Y Shingai; S Makino; M Kusunoki; A Saito; S Ohshima
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY IOP PUBLISHING LTD 17 (3) 337 - 341 0953-2048 2004/03 [Refereed]
     
    The growth and characterization of a BaZrO3 buffer layer for controlling the in-plane orientation of YBa2Cu3O7-delta films grown on MgO substrates is described. BaZrO3 buffer layers and YBa2Cu3O7-delta films are grown by pulsed laser deposition. 45degrees grain boundaries typically exist in YBa2Cu3O7-delta films grown on MgO(001) substrates; these are fatal defects for microwave device applications and are eliminated using the BaZrO3 buffer layer. The preferred orientation and in-plane orientation with respect to the MgO substrates are estimated for MgO lattice-matched BaZrO3 buffer layers grown on MgO substrates. YBa2Cu3O7-delta films grown at an optimum growth temperature of 710 degreesC on BaZrO3 buffer layers on MgO(001) substrates show a lower surface resistance (R-s) than those on MgO(001) substrates without BaZrO3 buffer layers.
  • A Sundaresan; H Asada; H Kito; Y Tanaka; A Iyo; M Kusunoki; S Ohshima
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY IOP PUBLISHING LTD 17 (3) 350 - 353 0953-2048 2004/03 [Refereed]
     
    Epitaxial thin films of a Tl(Ba, Sr)(2)Ca2Cu3Oy (Tl-1223) superconductor with a thickness of 5000 Angstrom were grown on a moderate dielectric constant (epsilon = 23.8) substrate (LaAlO3)(0.3) (Sr2AlTaO6)(0.7) (LSAT) in order to study the miniaturization of a superconducting thin film microwave filter. For the annealing conditions followed in this work, we observed two kinds of surface morphology: both of them have a large plate-like morphology with pits but they differ from each other by the presence of needle shaped (a-axis-oriented) grains on top of the plate-like surface. The superconducting transition temperature (T-c) and critical current density (J(c)) for both kinds of films (with and without needles) are about 108 K and similar to0.8 MA cm(-2) at 90 K, respectively. However, the values of the temperature dependence of the microwave surface resistance (R-s) of the films with needles are about one order higher than those for the films without needles, due to the absorption of microwaves by a-axis-oriented needles. The value of R-s for the films without needles at 90 K and 10 GHz is 507 muOmega, which satisfies the requirement for microwave device applications with high performance.
  • UCHIDA Takashi; SUTO Masaki; MIKAMI Hiroshi; TAKEDA Makoto; KUSUNOKI Masanobu; SAITO Atsushi; MUKAIDA Masashi; OHSHIMA Shigetoshi
    Cryogenic engineering 低温工学協会 39 (1) 18 - 24 0389-2441 2004/01
  • UCHIDA Takashi; SUTO Masaki; MIKAMI Hiroshi; TAKEDA Makoto; KUSUNOKI Masanobu; SAITO Atsushi; MUKAIDA Masashi; OHSHIMA Shigetoshi
    TEION KOGAKU CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN 39 (1) 18 - 24 0389-2441 2004 
    This paper reports the results the application of sapphire rod trimming to improve HTS filter properties. First, we examined the optimum position of the sapphire rod above the hairpin filter to shift the resonance frequency. The resonance frequency could be changed about 20 MHz, a value which is sufficient for filter trimming. Next, we examined sapphire rod trimming for a 5-resonator hairpin filter. We found that sapphire rod trimming is a very useful technique for improving filter properties; for example, reducing the ripple and increasing the steepness of the filter properties. We also discuss improving sapphire rod trimming using an equivalent circuit model. The improvement and sapphire rod position could be explained by the equivalent circuit model.
  • 橋本典也; 楠正暢; 川島将実; 西川博昭; 本津茂樹; 中村正明
    歯科材料・器械 23 328  2004 [Refereed]
  • Buffer layers for TFA-MOD YBa2Cu3O7? d films on MgO substrate
    M. Mukaida; M.Miura; T.Araki; Masanobu Kusunoki; A.Saito; S. Ohshima; I. Hirabayashi; K.Tanabe
    Institute of Physics Conference Series 12 1514 - 1519 2004 [Refereed]
  • M Kusunoki; M Inadomaru; D Kousaka; S Ohshima; K Aizawa; M Mukaida
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 392 (392) 1241 - 1244 0921-4534 2003/10 [Refereed]
     
    The parallel plate dielectric resonator was applied to surface resistance (R-s) measurement of high temperature superconducting films with small area for the purpose of material research in early stage. Using 38 GHz resonance of TE013 mode, available measurement area in the film was diameter of 9 mm. From the theoretical calculation, the measurement at higher frequency had an advantage of less error in R-s that is caused by dielectric loss tangent (tan 6). The effect of dielectric loss is negligible at 38 GHz even using a sapphire with order of 10(-7) of tan delta. In lower R-s region, R-s values of YBa2Cu3Oy that were measured at 38 GHz agreed well with that of standard measurement method at 22 GHz. However the difference of R, between two methods became larger with increase of R-s. It is owing to poor signal to noise ratio at higher frequency. (C) 2003 Elsevier B.V. All rights reserved.
  • M Shirakawa; J Unno; K Aizawa; M Kusunoki; M Mukaida; S Ohshima
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 392 1346 - 1352 0921-4534 2003/10 [Refereed]
     
    We have examined in-plane orientation Of CeO2 buffer layers on c-plane and tilt-c-plane sapphire substrates. The tilt angles are 5degrees, 10degrees and 15degrees, which are defined as the angles between the c-plane and the surface planes of the sapphire substrates (called 5degrees, 10degrees, 15degrees tilt-c-plane substrates). The films were prepared by inductively coupled plasma sputtering. The in-plane orientation of the films was measured using X-ray phi-scan. phi-scan peaks of films fabricated on c-plane substrates appeared every npi/6 or npi/12 (n: integer), showing 12-fold or 24-fold symmetry. The in-plane orientation is influenced by the hexagonal symmetry of the sapphire c-plane. The degree of film orientation depends on the substrate temperature during preparation. On the other hand, we found weak 4-fold symmetry for films fabricated on 10degrees and 15degrees. tilt-c-plane substrates. This suggests that we can obtain CeO2 films with perfect 4-fold symmetry on tilt-c-plane sapphire substrates. (C) 2003 Elsevier B.V. All rights reserved.
  • S Ohshima; M Kusunoki; M Inadomaru; M Mukaida; Y Tanaka; H Ihara
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 13 (2) 3578 - 3580 1051-8223 2003/06 [Refereed]
     
    We have examined the relationship between the surface resistance and the depairing current density of superconductors. From the two-fluid model and the relationship between the depairing current density and the thermodynamic critical field, we can show that the surface resistance is in inverse proportion to the depairing current density. We also experimentally examined the correlation between the surface resistance and the critical current density of YBCO thin films, and found that the surface resistance is in inverse proportion to the critical current density. The results mean that our theoretical analysis is suitable for predicting the correlation between the surface resistance and the critical current density.
  • A Sundaresan; H Asada; A Crisan; JC Nie; H Kito; A Iyo; Y Tanaka; M Kusunoki; S Ohshima
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 13 (2) 2913 - 2916 1051-8223 2003/06 [Refereed]
     
    Epitaxial Tl2Ba2CaCu2Oy and Tl(Ba,Sr)(2)Ca-2 Cu3Oy thin films have been prepared on CeO2 buffered sapphire substrate by an ex situ process with high reproducibility. Microstructure analysis of the surface of the TI-2212 films showed well connected and smaller sized grains of 1 mum or less. In the case of TI-1223 film, plate-like crystals with pits and pin holes could be observed. The superconducting critical temperatures of both films are around 96 K. Critical current density measured by ac susceptibility technique is as high as 1 MA/cm(2) at 77 K. The microwave surface resistance of these films was measured over a wide range of temperatures by a HTS-sapphire-HTS resonator method at 38 GHz on films with area 10 mm x 10 mm. The temperature dependence of surface resistance of TI-2212 film follows very closely to that of the best YBCO films on MgO substrate, whereas the TI-1223 exhibits slightly higher values resulting from an inferior surface morphology.
  • H Yamada; K Moriai; S Kanno; K Aizawa; M Kusunoki; M Mukaida; S Ohshima
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 13 (2) 3121 - 3124 1051-8223 2003/06 [Refereed]
     
    We observed vortices with a modified Bitter method by evaporating nickel as the medium of decoration, in film and QMG (which are made with the quench-and-melt-growth method) YBa2Cu3O7-delta (YBCO) samples. The temperature range of observation was from 25 K to 90 K, and the external magnetic field was 2 mT. Consequently, we found that the vortex structures of these samples were stable from 25 K to near the critical temperature (similar to90 K). The density of vortex was almost three times larger than that estimated from the external magnetic field. This suggests that the vortex motion may be hopping during nickel evaporation.
  • A Sundaresan; Y Tanaka; A Iyo; M Kusunoki; S Ohshima
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY IOP PUBLISHING LTD 16 (5) L23 - L24 0953-2048 2003/05 [Refereed]
     
    A simple method, fishing high-T-c superconductor thin films out of a liquid nitrogen bath by a permanent magnet (field > H-c1), due to the effect of high flux pinning, has been suggested to identify films that have high critical current density (J(c) > 10(6) A cm(-2) at 77 K) and thus a low microwave surface resistance (R-s). We have demonstrated that a Nd-Fe-B magnet, having a maximum field of similar to0.5 T, could fish out TI-1223 superconducting thin films on LSAT substrate with a thickness of similar to5000 Angstrom having J(c) > 1 MA cm(-2) (at 77 K) whereas it could not fish out other films with J(c) < 0.1 MA cm(-2) at 77 K. The fished out films exhibit R-s values 237-245 mum at 77 K and 10 GHz, which is lower than that (R-s = 317 mum) of the commercially available YBCO film at the same temperature and frequency. On the other hand, the non-fishable films show very high R-s values. This method is a very simple tool to test for high J(c) and good microwave properties of large area superconducting films which would otherwise require a special and expensive tool.
  • A Sundaresan; H Asada; A Crisan; JC Nie; H Kito; A Iyo; Y Tanaka; M Kusunoki; S Ohshima
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 388 (473) 473 - 474 0921-4534 2003/05 [Refereed]
     
    Tl2Ba2CaCu2Oy (Tl-2212) and Tl(Ba,Sr)(2)Ca2Cu3Oy (Tl-1223) superconductor thin films have been prepared on CeO2 buffered sapphire substrate by an ex situ process namely, amorphous phase epitaxy (APE) method. In the case of Tl-1223, an amorphous layer of TlSr2CaCu2Oy (TlSr-1212) was deposited on top Of CeO2 layer to avoid chemical reaction between Tl-1223, containing Ba, and CeO2 layers. All films are epitaxial with smooth surface and excellent crystallinity. Superconducting transition temperatures (T-c) of Tl-2212 and 1223 are around 95 and 104 K, respectively. Critical current density (J(c)) at 77 K measured on 5 x 5 mm. films by inductive technique is as high as 2 MA/cm(2). Surface resistance R-s of Tl-2212 films measured by a dielectric resonator technique at 38 GHz is comparable to the best YBCO films. (C) 2003 Elsevier Science B.V. All rights reserved.
  • MUKAIDA Masashi; YAMAZAKI Yuya; SHINGAI Yuki; KUSUNOKI Masanobu; MATSUMOTO Kaname; YOSHIDA Yutaka; ICHINOSE Ataru; HORII Shigeru; SAITO Atsushi; OHSHIMA Shigetoshi
    TEION KOGAKU CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN 38 (10) 546 - 553 0389-2441 2003 [Refereed]
     
    Buffer layer materials for growing YBa2Cu3O7−δ thin films on MgO substrates are examined from the viewpoint of YBa2Cu3O7−δ thin-film crystallinity. The buffer layers were grown using an excimer laser. Crystallinity of the buffer layers grown on MgO substrates and the YBa2Cu3O7−δ thin films on the buffer layers were evaluated by X-ray diffraction, X-ray rocking curves and X-ray φ-scan methods. One of key points to obtain YBa2Cu3O7−δ thin films of the highest quality on the MgO substrates is the usage of BaZrO3 buffer layers that are lattice matched to the MgO substrates. However, every buffer layer examined here showed the result of high-quality YBa2Cu3O7−δ thin films with a Tc of around 89 K and low surface resistance.
  • D Okai; M Kusunoki; M Mukaida; S Ohshima
    ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS SCRIPTA TECHNICA-JOHN WILEY & SONS 86 (4) 27 - 35 8756-663X 2003 [Refereed]
     
    To design superconducting microwave receivers, the surface resistance of the superconducting thin film must be considered. Therefore, a. highly accurate technique for measuring the surface resistance of superconducting thin films should be established. In this paper, we propose a probe-coupled microstrip line resonator as a technique for measuring the surface resistance of superconducting thin films. In the resonator technique, the surface resistance is calculated from Q(u), the unloaded Q, of the resonator. Since the microstrip line resonator searches for an accurate surface resistance of the superconducting thin film, establishing a technique that accurately determines the Q(u) of the resonator is crucial. We measure the Q(u) values of resonators fabricated from metal and superconducting thin film by a probe-coupled microstrip line resonator and describe the accuracy of Q(u) measurement by the probe-coupled micro-strip line resonator and the repeatability of the surface resistance measurement of a superconducting thin film. (C) 2003 Wiley Periodicals, Inc.
  • M Kusunoki; Y Takano; K Nakamura; M Inadomaru; D Kosaka; A Nozaki; S Abe; M Yokoo; M Lorenz; H Hochmuth; M Mukaida; S Ohshima
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 383 (4) 374 - 378 0921-4534 2003/01 [Refereed]
     
    A scanning mapping technique of surface resistance (R-s) using the sapphire dielectric resonator was developed and demonstrated for a 3-inch-diameter YBa2Cu3Oy film. The area of the 3-inch film was divided by 5 x 5 nun grid for scan, resulting in 101 measurement points. Values of R, in the film varied from 2.9 to 3.8 mOmega at 22 GHz and 77 K. The distribution of R-s corresponded to that of the critical current density. Sampling of quality factors at each point was performed using non-contact measurement between film and sapphire. Since the airtight chamber was filled with dry N-2 gas to avoid film degradation by frost and water during the warming process, perfect non-destructive measurement is realized. Fluctuation of distance between the surface of film and dielectric rod was monitored by resonance frequency. Errors in R-s caused by the fluctuation were calculated within 0.01 mOmega. Furthermore, the system could detect a small (0.3 mm x 0.5 nun) scratch defect as well as the gradient of film thickness on Ag film. This technique is effective for inspection of large-area high temperature superconducting films for microwave applications. (C) 2002 Elsevier Science B.V. All rights reserved.
  • H Yamada; K Moriai; S Kanno; K Aizawa; M Kusunoki; M Mukaida; S Ohshima
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 378 554 - 559 0921-4534 2002/10 [Refereed]
     
    We have examined vortex distribution of YBa2Cu3O7-delta (YBCO, Y-123) films and YBCO-QMG samples. The vortices were observed by the Bitter method using the decoration of the fine magnetic particles. Observation of vortex distribution was done in the temperature range between 25 and 90 K in the magnetic field range between 0 and 10 mT. We found that vortices of YBCO films and YBCO-QMG samples did not move at 25 K and moved slightly at 75 K, and the interface of the Y2BaCuO5 (Y-211) and Y-123 phases of the YBCO-QMG sample works as pinning center. (C) 2002 Elsevier Science B.V. All rights reserved.
  • M Mukaida; S Sato; Y Takano; M Kusunoki; S Ohshima
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 378 (1232) 1232 - 1235 0921-4534 2002/10 [Refereed]
     
    A grain size control technology will be described. YBa2Cu3O7-delta thin films are grown by a pulsed laser deposition method in 400 mTorr oxygen atmosphere. The films are grown by a self-template method with various self-template growth temperatures. However the temperature of the main YBa2Cu3O7-delta layer was fixed. Grain size of YBa2Cu3O7-delta thin films on MgO substrates are observed by atomic force microscope. Mean diameter of grains are calculated by the number of grains in scanned area of 1 x 1 mum(2). The mean diameters are 2.49 x 10(2), 2.89 x 10(2), 4.047 x 10(2) and 4.192 x 10(2) nm for films with an initial layer growth temperature of 670, 690, 714 and 730 degreesC, respectively. Grain size is found to depend on the initial growth stage of the YBa2Cu3O7-delta thin film growth. These grain sizes have a strong relationship with the inverse of substrate temperature indicating thermally excited migration of YBa2Cu3O7-delta nuclei. It is also clarified that migration length of YBa2Cu3O7-sigma nucleus is longer on an YBa2Cu3O7-delta films than on MgO substrates. (C) 2002 Elsevier Science B.V. All rights reserved.
  • M Kusunoki; M Inadomaru; S Ohshima; K Aizawa; M Mukaida; M Lorenz; H Hochmuth
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 377 (3) 313 - 318 0921-4534 2002/09 [Refereed]
     
    We investigated the dielectric loss tangent (tan delta) of sapphire single crystals produced by edge-defined film-fed growth (EFG) method using a dielectric resonator with YBa2Cu3Oy (YBCO) films. Surface resistance (R-s) of the YBCO film was low enough to obtain high resolution of tan 6 measurement. For comparison, tan delta of the sapphire prepared by the Czochralsky (Cz) method was also evaluated. Measurements of 14 sapphire rods showed that EFG sapphire tends to have lower tan delta than Cz sapphire, while defects in Cz crystal were 1/14-1/2 less than that in EFG crystal. It means that the number of defects does not influence tan delta, if the density of defects is within the order of 10(4)/cm(2). In most EFG sapphire the value of tan 6 at 30 K was estimated to be < 1.0 x 10(-7). It is usable for R-s measurement of high critical temperature superconducting materials. (C) 2002 Elsevier Science B.V. All rights reserved.
  • S Ohshima; S Oikawa; T Noguchi; M Inadomaru; M Kusunoki; M Mukaida; H Yamasaki; Y Nakagawa
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 372 671 - 674 0921-4534 2002/08 [Refereed]
     
    We have examined the correlation between the critical current density (J(c)) and the surface resistance (R-s) of an YBa2Cu3O7-delta (YBCO) thin film. YBCO films were prepared in an inductively coupled plasma sputtering system on MgO and BSO/MgO substrates. BaSnO3 (BSO) was used as a buffer material for the MgO substrates. J(c) was determined by magnetic measurements, and R-s was measured using a sapphire rod resonator method, The correlation of critical current and surface resistance has been reported previously, however. there is few researches in which a systematic correlation of R-s and J(c) using the same sample has been done. To begin with, we measured R-s by the dielectric resonator method, and next, J(c) was measured using the magnetic field method, As a result, it was proven that there was a strong correlation between R-s and J(c). We found that the relationship between J(c) and R-s (at 22 GHz) could be expressed by the following equation, R-s = 2.0 x 10(7) J(c)(-1), where the unit of R-s is the ohm, and the unit of J(c) is A/m(2). It was found that the relation was applicable in a wide temperature range under T,. The value of the surface resistance can be estimated. if an accurate critical current is obtained. (C) 2002 Elsevier Science B.V. All rights reserved.
  • A Cassinese; M Barra; Fragala, I; M Kusunoki; G Malandrino; T Nakagawa; LMS Perdicaro; K Sato; S Ohshima; R Vaglio
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ELSEVIER SCIENCE BV 372 500 - 503 0921-4534 2002/08 [Refereed]
     
    Dual mode devices based on high temperature superconducting films represent an interesting class for telecommunication applications since they combine a miniaturized size with a good power handling. Here we report on a novel compact antenna obtained by crossing a square patch with two or more slots. The proposed design has an antenna size reduction of about 40% as compared to the conventional square patch microstrip antennas. Single patch antenna both with linear (LP) and circular (CP) polarization operating in the X-band have been designed and tested at prototype level. They are realized by using double sided (YBa2Cu3O7-x) YBCO and TI2Ba2Ca1Cu2O8 (TI-2212) superconducting films grown on MgO substrates and tested with a portable cryocooler. They showed at T = 77 K a return loss <25 dB and a power handling of 23 dBm. Exemplary 16 elements arrays LP antennas operating in the X band have been also realized by using YBCO film grown on 2" diameter MgO substrate. (C) 2002 Elsevier Science B.V. All rights reserved.
  • M Barra; A Cassinese; Fragala, I; M Kusunoki; G Malandrino; T Nakagawa; LMS Perdicaro; K Sato; S Ohshima; R Vaglio
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY IOP PUBLISHING LTD 15 (4) 581 - 585 0953-2048 2002/04 [Refereed]
     
    The use of high-temperature superconducting films for the fabrication of antennas allows us to realize radiating structures that are small in size and have a very high efficiency. In this paper, we investigate the properties of a novel compact antenna obtained by crossing a square patch with diagonal and transverse slots. Single patch antennas, with both linear and circular polarization operating in the X-band, with a size reduction of about 40% as compared to conventional square patches, have been designed and tested at prototype level. They have been realized by using double-sided YBa2Cu3O7-x,(YBCO) and Tl2Ba2Ca1Cu2O8(Tl-2212) superconducting films grown on MgO substrates and have been measured using a portable cryocooler. At T = 77 K, the experimental scattering parameter, S11, agrees well with simulations, showing a power handling of 23 dBm for YBCO devices. The miniaturized patch antenna investigated has allowed us to realize a 4 x 4 array of linear polarization antennas at 11.5 GHz, using a YBCO film grown on a MgO substrate with a 2" diameter, by considering a reduced interspace (more than 20%) between the elements. The far-field pattern and the 16-array gain are in good agreement with the simulated results.
  • OKAI Daisuke; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    The transactions of the Institute of Electronics, Information and Communication Engineers. C 一般社団法人電子情報通信学会 84 (11) 1113 - 1121 1345-2827 2001/11 [Refereed]
     
    超伝導マイクロ波受動デバイスを設計するためには, 超伝導薄膜の表面抵抗を考慮する必要がある.このため, 超伝導薄膜の表面抵抗の高精度測定法の確立が望まれている.本論文では, 超伝導薄膜の表面抵抗の測定法としてプローブ結合型マイクロストリップ線路共振器法を提案する.共振器法では, 表面抵抗は共振器の無負荷Q, Quから計算される.したがって, マイクロストリップ線路共振器法により超伝導薄膜の表面抵抗を正確に求めるためには, 共振器のQuを高精度測定する技術の確立が重要となる.プローブ結合型マイクロストリップ線路共振器法により金属と超伝導薄膜から作製した共振器のQu測定を行い, プローブ結合型マイクロストリップ線路共振器法によるQu測定の測定精度と, 超伝導薄膜の表面抵抗測定の再現性について述べる.
  • M. Mukaida; M. Kusunoki; S. Ohshima
    Physica C: Superconductivity and its Applications 357-360 (1) 1382 - 1385 0921-4534 2001/09 [Refereed]
     
    Lanthanide (Ln) atom in Ln2CuO4 buffer layer dependence of c-axis in-plane aligned a-axis oriented YBa2Cu3O7-δ (YBCO) thin film growth is discussed and preferred orientation growth model of a bc-plane matched growth model is proposed. The c-axis in-plane aligned a-axis oriented YBCO thin films are very attractive from both the researches on the origin of high Tc superconductors and microelectronics device applications. However the c-axis in-plane aligned a-axis oriented films are difficult to grow. We have been proposing Ln2CuO4 buffer layers for the c-axis in-plane aligned a-axis oriented YBCO thin film growth. We have examined various Ln atoms in Ln2CuO4 buffer layers for the growth of YBCO thin films by pulsed laser deposition. From a lattice matching point of view, a Tb2CuO4 buffer layer is the best one for the c-axis in-plane aligned a-axis oriented YBCO thin films. However the result shows that the Nd2CuO4 and Tb2CuO4 buffer layer causes YBCO thin films with c-axis oriented portion about 35% and 32%, by X-ray diffraction peaks, which is much larger than those on Gd2CuO4 buffer layers (7.4%). The most promising Ln atom in Ln2CuO4 buffer layers for the growth of the c-axis in-plane aligned a-axis oriented YBCO thin films so far is Gd2CuO4 buffer layers or Eu2CuO4 buffer layers. © 2001 Elsevier Science B.V. All rights reserved.
  • T. Kinpara; M. Kusunoki; M. Mukaida; S. Ohshima
    Physica C: Superconductivity and its Applications 357-360 (1) 1503 - 1506 0921-4534 2001/09 [Refereed]
     
    High-temperature superconducting microwave filters were designed for the W-CDMA communication system. Frequency responses of the filters were calculated by the electromagnetic simulator "Sonnet-em". A cross-coupled 8-pole microstrip line filter shows 1.949 GHz of center frequency and 1.04% of transmission fractional bandwidth on the LaAlO3, and 1.950 GHz of center frequency and 1.02% of transmission fractional bandwidth on the Al2O3. © 2001 Elsevier Science B.V. All rights reserved.
  • S Kanno; T Kawai; S Satou; K Aizawa; M Kusunoki; M Mukaida; S Ohsima; S Hayashi; T Nishizaki; N Kobayashi
    PHYSICA C ELSEVIER SCIENCE BV 357 625 - 628 0921-4534 2001/08 [Refereed]
     
    We have observed vortices of the high-temperature superconductor using the Bitter technique. Hopping movement of vortices of Y-123 and Bi-2212 single crystal was observed in the temperature range of 50-90 K (T-c) by the thermal energy. We estimated pinning potential by migration length, The pinning potential, we have also observed the vortex pattern of Y-123 QMG sample including Y-211 phase. We found that vortex existed in the grain boundary of Y-211 and Y-123 phase. (C) 2001 Elsevier Science B.V. All rights reserved.
  • K Chiba; S Makino; M Mukaida; M Kusunoki; S Ohshima
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 11 (1) 2734 - 2737 1051-8223 2001/03 [Refereed]
     
    The effect of lattice matching between YBa2Cu3O7-delta (YBCO) films and buffer layers as well as between buffer layers and MgO substrates have been discussed from viewpoints of crystalline, critical temperature and surface resistance of YBCO films. SrSnO3 (SSO) as well as BaSnO3 (BSO) were used as buffer materials. SSO has closer lattice constant to YBCO than BSO. YBCO films were grown on these materials at the optimal growth temperature by pulse laser deposition. The FWHM of phi -scan (102) plane of YBCO films on SSO buffer lavers was smaller than that of YBCO films on BSO buffer layers. However the values of FWHM of 005 rocking-curve of YBCO films on BSO buffer layer were smaller than that of YBCO films on SSO buffer layer. The difference of surface resistance between YBCO film on BSO buffer layer and YBCO film on SSO buffer layer was very small indicating superconducting properties are not mainly governed by lattice mismatch at this region. We obtained the same values for c-axis length and critical temperature in YBCO films on these materials.
  • S Ohshima; M Kusunoki; M Mukaida; T Suzuki; K Chiba; M Inadomaru; Y Takano
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 11 (1) 3493 - 3496 1051-8223 2001/03 [Refereed]
     
    We have examined the relationship between in-plane orientation, grain size, fluctuation of grain axis and surface resistance of YBa2Cu3O7-delta (YBCO) films. The surface resistance of YBCO films with a mixture of (100) and (110) in-plane grains was larger than that of the films with perfect in-plane orientation. The behavior of surface resistance could be explained by the degree of grain boundaries of (100) and (110) in-plane orientation. The surface resistance of YBCO films was proportion to the fluctuation of grain axis. It was also proven that surface resistance of high-temperature superconductors is affected by the critical current.
  • D Okai; M Kusunoki; M Mukaida; S Ohshima
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 11 (1) 3078 - 3081 1051-8223 2001/03 [Refereed]
     
    We have developed a new surface resistance (R-s) measurement technique of high-temperature superconductors using a probe coupling microstrip line resonator. In this technique, the probe coupling method is used to measure the R-s of superconductors without attaching any contacts to the superconductors, This paper reports the measurement process of the R-s of a superconducting fine-wire using this technique. The quality Factors of the copper wires, gold fine-wire and the Bi-Sr-Ca-Cu-O whisker crystal were measured by the probe coupling resonator method. The measurement results revealed that this technique is feasible for the R-s measurement of the superconducting fine-wire.
  • K Ehata; K Sato; M Kusunoki; M Mukaida; S Ohshima; Y Suzuki; K Kanao
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 11 (1) 111 - 114 1051-8223 2001/03 [Refereed]
     
    Two types of miniaturized cooling systems for High-Temperature Superconducting (HTS) antennas were designed and built, In this paper, details of these systems, measured and simulated properties of patch antennas installed in these systems, and results of a seal-off trial for 1 month are reported, Both the systems had portable size and weight and could cool the HTS devices. When a patch antenna with resonant frequency of 4.9 GHz was installed in the Ist cooling system, the radiation pattern of the antenna was strongly focused in the forward direction. This is because the vacuum chamber in which the antenna was packaged influenced the microwaves radiated from the antenna. Due to this effect, the directive gain of the antenna was enhanced by 11.2 dB. In the 2nd system, a seal-off-trial was carried out to investigate the airtight property that is necessary for thermal isolation. The temperature of the sample stage could be kept under the critical temperature of YBCO for 1 month without continuous vacuum pumping. The cooling systems developed in this work are expected to promote the practical use of HTS antennas.
  • M Lorenz; H Hochmuth; D Natusch; M Kusunoki; VL Svetchnikov; Riede, V; Stanca, I; G Kastner; D Hesse
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 11 (1) 3209 - 3212 1051-8223 2001/03 [Refereed]
     
    Large-area poised laser deposition (PLD) has reached a state in terms of film quality and reproducibility which makes possible now real market applications of PLD-YBa2Cu3O7-delta (YBCO) thin films on both sides of it-plane sapphire substrates as HTSC devices in satellite and mobile communication systems. Bandpass filters optimized from PLD-YBCO thin films presently fulfill the requirements of the main national companies which are active in future communication techniques. A relatively simple PLD arrangement with fixed laser plume and rotating substrate, with an offset between the laser plume and the center of the substrate is employed to deposit laterally homogeneous 3-inch diameter Ag-doped YBCO thin films. With the experience of more than 1,000 doable-sided 3-inch diam, films a high degree of homogeneity and reproducibility of j(c) and R-s is reached. The extension up to 8-inch substrate diameter will increase the productivity of the flexible PLD technique considerably.
  • H. Obara; S. Kosaka; A. Sawa; H. Yamasaki; Y. Kobayashi; T. Hashimoto; S. Ohshima; M. Kusunoki; M. Inadomaru
    Physica C: Superconductivity and its Applications 357-360 1511 - 1515 0921-4534 2001 [Refereed]
     
    The surface resistance of high-Tc superconducting films at microwave frequencies was carefully measured by the dielectric resonator method using two sapphire rods. The dielectric resonator method is appropriate for the standard measurement of surface resistance at microwave frequencies. In the present work, we focused on asymmetry in coupling and the parasitic coupling effect which cause error in this method and discussed the precision and accuracy of the measurements. Finally, we report on a round robin test in which the observed surface resistances in three institutes gave good agreement. These results were reflected in the working draft of the International Electrotechnical Commission Technical Committee 90 (IEC/TC90). © 2001 Elsevier Science B.V.
  • K. Ehata; K. Sato; M. Kusunoki; M. Mukaida; S. Ohshima; Y. Suzuki; K. Kanao
    Physica C: Superconductivity and its Applications 357-360 1507 - 1510 0921-4534 2001 [Refereed]
     
    Measured results and discussion on vacuum seal-off property of a cooling system for high-temperature superconducting antennas are reported. The cooling system was designed and fabricated and its cryogenic packaging was investigated. Vacuum seal-off tests were performed and high vacuum for thermal isolation could be kept for 25 days. On the cold stage of the system, some kinds of gas, including H2O and CO2, were adsorbed on a cold stage. © 2001 Elsevier Science B.V.
  • K Chiba; S Makino; M Mukaida; M Kusunoki; S Ohshima
    PHYSICA C ELSEVIER SCIENCE BV 349 (1-2) 35 - 39 0921-4534 2001/01 [Refereed]
     
    The critical thickness of BaSnO3 (BSO) buffer layer for YBa2Cu3O7-delta (YBCO) thin films on MgO substrate is discussed from viewpoints of the in-plane orientation and critical temperature. Thin films are grown by changing the thickness of BSO buffer layers at optimal growth temperature of YBCO films by pulse laser deposition. We are able to control the in-plane orientation of YBCO films with the BSO buffer layers thicker than 2 nm. This result indicates that BSO buffer layers can control the in-plane orientation of YBCO with a thickness less than the other buffer materials reported so far. (C) 2001 Elsevier Science B.V. All rights reserved.
  • M Mukaida; S Makino; K Chiba; M Kusunoki; S Ohshima
    PHYSICS IN LOCAL LATTICE DISTORTIONS: FUNDAMENTALS AND NOVEL CONCEPTS LLD2K AMER INST PHYSICS 554 512 - 516 0094-243X 2001 [Refereed]
     
    Microstructures of YBa2Cu3O7 (delta) / BaSnO3 superlattice are analyzed by Transmission electron microscopy. YBa2Cu3O7 (delta) / BaSnO3 superlattices are fabricated by a pulsed laser deposition technique with in-situ rotation of target materials. Typical growth conditions of substrate temperature and oxygen pressure are 710 degreesC and 400 mTorr, respectively. A few nm thick BaSnO3 insulating layers and YBa2Cu3O7-delta superconducting layers are sequentially deposited with total thickness of around 150 nm. Crystallographic characteristics of these superlattices are evaluated by x-ray diffractometry (XRD) and transmission electron microscopy (TEM). Several layers of YBa2Cu3O7 (delta) and BaSnO3 are clearly observed by TEM. The observed thickness of one layer of YBa2Cu3O7-delta and that of BaSnO3 films are 12 nm and 6.5 nm, respectively From a high-resolution TEM observation, the strain induced by lattice length difference between YBa2Cu3O7 (delta) and BaSnO3 are released by introducing misfit dislocations in the YBa2Cu3O7 (delta) films not in the BaSnO3 films. A new insulating layer is required with small lattice mismatch to YBa2Cu3O7-delta for avoiding introduction of misfit dislocations.
  • Katherine D. Develos; Katherine D. Develos; Masashi Mukaida; Masanobu Kusunoki; Shigetoshi Ohshima
    Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers The Japan Society of Applied Physics 39 (3) 1116 - 1120 0021-4922 2000/12 [Refereed]
     
    The elimination of α-axis orientation in YBa2Cu3O7-8 (YBCO) films grown on CeO2-buffered A12O3 for microwave devices was achieved through a two-step deposition process performed at different temperatures. The growth of α-axis-oriented YBCO film was considered to be due to the impediment of the adatom mobility by the surface roughness of the underlying buffer layer. For the initial layer, the deposition was carried out at a high temperature to increase surface mobility. Next, the deposition was performed at a lower temperature as necessary for optimum α-axis-oriented growth. By this method, only a α-axis-oriented film was obtained. The characteristic surface resistance Rs(T) values for this film were significantly lower than those with mixed c-and α-axis orientations. © 2000 Publication Board, Japanese Journal of Applied Physics.
  • S Ohshima; Y Takano; M Mukaida; M Kusunoki; K Ehata; K Chiba; T Suzuki; M Inadomaru
    PHYSICA C ELSEVIER SCIENCE BV 341 2565 - 2568 0921-4534 2000/11 [Refereed]
     
    We have examined that how to reduce the surface resistance, Rs of YBCO films, and found that control of the in-plane alignment of the YBCO films was very important to realize that. The in-plane alignment of the YBCO films on MgO substrates could be controlled by the BaSnO3(BSO) buffer layers, and self-template method. We also examined YBCO patch antenna and its compact cooling system. The compact cooling system was easy to keep YBCO patch antennas in the superconducting state.
  • M Mukaida; S Oikawa; M Kusunoki; S Ohshima
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY IOP PUBLISHING LTD 13 (9) L5 - L9 0953-2048 2000/09 [Refereed]
     
    The electrical resistance of a c-axis-oriented YBa2Cu3O7-delta film is measured at elevated temperatures, under various values of oxygen pressure. The resistance shows a monotonic increase with substrate temperature up to around 450 degrees C, indicating little oxygen out-diffusion. Above this temperature, the rapid increase of the electrical resistance shows out-diffusion of oxygen from the film. As the temperature is increased, an abrupt drop occurs above a certain temperature (T-m) where the resistance indicates its highest value. T-m has an oxygen pressure dependence, which is similar to the oxygen pressure dependence of the orthorhombic-to-tetragonal transition line in an oxygen pressure-inverse of temperature phase diagram of YBa2Cu3O7-delta. From the observation of surface morphologies, the T-m is thought to be a sort of melting temperature where a partial melting of the YBa2Cu3O7-delta film occurs.
  • M Inadomaru; D Kousaka; M Kusunoki; M Mukaida; S Ohshima
    ADVANCES IN SUPERCONDUCTIVITY XII SPRINGER-VERLAG TOKYO 5 1069 - 1071 2000 [Refereed]
     
    The configuration of the antenna of the dielectric resonator is investigated to measure the exact surface resistance (R-s) of the high temperature superconductor (HTS) thin films over a wide range of temperature. The sapphire dielectric resonator is operated at 22GHz. The loop-terminated semi-rigid cables are used as the antennas. Using a Cu resonator at room temperature, the circumference length of the loop (L), the distance from the dielectric center to the loop center (d), and the height of the loop plane from the substrate surface (h) were changed. It is found that the smaller loop set at a position halfway to the height of the dielectric rod brought the widest region of d in which exact measurements can be carried out. This result was then applied using a HTS resonator. In order to measure exact Q(u) over a wide temperature region from low temperature to the critical temperature, weak coupling rather becomes a disadvantage. The best position of the antenna can be obtained when insertion loss set around -10dB at minimum temperature of the system.
  • T Suzuki; S Sato; M Kusunoki; M Mukaida; S Ohshima
    ADVANCES IN SUPERCONDUCTIVITY XII SPRINGER-VERLAG TOKYO 5 1048 - 1050 2000 [Refereed]
     
    The YBa2Cu3Oy (YBCO) film having low surface resistance (RS) was prepared using an inductive coupled plasma sputtering technique. To increase the low deposition rate, a new self-template method was examined. The YBCO films fabricated on the 21-nm-thick template YBCO layer were c-a ris oriented grain perfectly and successfully grew even at 3 times higher deposition rate. However, the R-s was not low enough, due to the in-plane misaligned grains. Therefore, the BaSnO3 (BSO) buffer was used to obtain perfect in-plane aligned grains. The R-s value of the YBCO/YBCO-template/BSO/MgO film was 0.38 m Omega at 35 K and 1.13 m Omega at 77 K in measurement frequency 22 GHz. The R-s values scaled to 10 GHz were 0.08 m Omega at 35 K and 0.23 m Omega at 77 K, respectively.
  • K Chiba; D Kousaka; M Mukaida; M Kusunoki; S Ohshima
    ADVANCES IN SUPERCONDUCTIVITY XII SPRINGER-VERLAG TOKYO 5 924 - 926 2000 [Refereed]
     
    YBa2Cu3O7-delta(YBCO)/BaSnO3(BSO) thin films are successfully deposited by laser ablation on both sides of [100] MgO substrate. At first, YBCO/BSO thin films were grown to estimate BSO critical thickness. The critical thickness of BSO for YBCO in-plane orientation is found to be approximately 2nm. Using this condition, double-sided YBCO/BSO films are grown on both sides. In-plane orientation for both sides indicates the absence of impurity phases. The full width at half maximum (FWHM) of the YBCO (005) peak for both sides is similar to 0.50 degrees. The surface resistances in both sides at 22GHz are approximately 1.0 m Omega at 35K.
  • M Mukaida; J Sugimoto; S Sato; M Kusunoki; S Ohshima
    ADVANCES IN SUPERCONDUCTIVITY XII SPRINGER-VERLAG TOKYO 5 957 - 959 2000 [Refereed]
     
    Effects of cation mixing on the growth of a-axis oriented NdBa2Cu3O7-delta films grown by ArF pulsed laser deposition on LaSrGaO4 (100) substrates with a buffer layer of Gd2CuO4 are investigated by x-ray diffractometry and cross-sectional transmission electron microscopy (TEM). Films are c-axis in-plane aligned a-axis oriented with a few amount of c-axis oriented portion. mixture of a- and c-axis oriented regions were observed in the NdBa2Cu3O7-delta films which are quite different from a-axis oriented YBa2Cu3O7-delta thin films. In the a-axis oriented YBa2Cu3O7-delta thin films, c-axis oriented portion was always observed in the vicinity of the interface between the substrates and the, films. These results indicate that a preferred orientation changing of YBa2Cu3O7-delta films from c-axis to a-axis on lattice mismatched substrates are not originated from mixing of cations of Y and Ba.
  • D Okai; M Kusunoki; M Mukaida; S Ohshima
    ADVANCES IN SUPERCONDUCTIVITY XII SPRINGER-VERLAG TOKYO 5 1063 - 1065 2000 [Refereed]
     
    We have examined the effect of the loss in the cavity on the measurement accuracy of surface resistance (Rs) of a superconducting thin film using a microstripline resonator. The Rs of a YBCO thin film was measured as a parameter of the height of the cavity's ceiling. The investigation revealed that the loss in the ceiling affected the measurement accuracy of Rs for a comparatively lower ceiling height. However, when the ceiling's height was sufficiently high, the effect was negligible.
  • Daisuke Okai; Masanobu Kusunoki; Masashi Mukaida; Shigetoshi Ohshima
    Asia-Pacific Microwave Conference Proceedings, APMC 3 880 - 883 1999/12 
    We have developed a probe-coupling type microstripline resonator method for accurate measurement of the surface impedance of superconductors. By this improved microstripline resonator method, the surface impedance can be measured without attaching any contacts to the film. This paper reports the accurate and reproducible measurement process of surface impedance using the probe-coupling type microstripline resonator. The surface impedance of a YBCO thin film was measured using this technique. The measured results revealed that this technique may be used for the accurate measurement of surface impedance.
  • Masashi Mukaida; Yoshinobu Takano; Kazuaki Chiba; Masanobu Kusunoki; Shigetoshi Ohshima
    Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers The Japan Society of Applied Physics 38 (4) 1945 - 1948 0021-4922 1999/12 [Refereed]
     
    The appearance of 45° grain boundaries in c-axis oriented YBa2Cu3Ox films grown by pulsed laser deposition on MgO (001) substrates is discussed. X-ray φ-scan (in-plane orientation) measurements have revealed that YBa2Cu3Ox films grown at around 700°C have two types of grains with [100]Mgo ∥ [100]YBCO and [110]MgO ∥ [100]YBCO in-plane epitaxial relationships. A plausible growth model is proposed from the viewpoints of lattice matching and ionic adhesive energy. The ratio of 0° and 45° grains is found to be a function of the substrate temperature. By decreasing the substrate temperature, we obtained c-axis oriented YBa2Cu3Ox thin films with only a [100]Mgo ∥ [100]YBCO in-plane epitaxial relation. We have eliminated the 45° grain boundaries which drastically increase the surface resistance of the YBa2Cu3Ox films for microwave applications. ©1999 Publication Board, Japanese Journal of Applied Physics.
  • Masashi Mukaida; Masanobu Kusunoki; Shigetoshi Ohshima
    Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers The Japan Society of Applied Physics 38 (3) 1370 - 1374 0021-4922 1999/12 [Refereed]
     
    All in-plane aligned a-axis oriented YBa2Cu3Ox/Gd2CuO 4/YBa2Cu3Ox superconductor/insulator/superconductor (SIS) junction structures are fabricated by a pulsed laser deposition technique and their microstructures are characterized. An insulating barrier of Gd2CuO4 with an atomic graphoepitaxial relation is selected from a lattice-matching point of view for the b-and c-axes of YBa2Cu3Ox at a deposition temperature of the YBa2Cu3Ox films. Preferred orientations and in-plane alignments of electrodes of YBa2Cu3Ox films and barriers of Gd2CuO4 films are confirmed by X-ray diffraction spectroscopy and an X-ray φ-scan technique. X-ray diffraction measurements revealed that all the YBa2Cu3Ox/Gd2CuO 4/YBa2Cu3Ox films are a-axis oriented. The c-axes of the layers are also in-plane aligned. ©1999 Publication Board, Japanese Journal of Applied Physics.
  • K Ehata; M Kusunoki; S Ohshima
    ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS SCRIPTA TECHNICA-JOHN WILEY & SONS 82 (11) 59 - 69 8756-663X 1999/11 
    The surface resistance of superconductors is smaller than that of normal conductors by several orders of magnitude. Hence, a superconducting microwave device has lower loss and higher performance than a normal conducting one. Since the mobile communication systems have become popular and cryocoolers of small size and light weight have been fabricated in recent years, research activity on superconducting microwave devices has been enhanced. In this paper, the design, fabrication, and characterization of a patch antenna using a high-temperature superconducting thin film are reported. It is demonstrated that the superconducting patch antenna has higher gain than a normal conducting one. The temperature dependence of the resonant frequency, the input resistance, and the power handling properties are also discussed. (C) 1999 Scripta Technica.
  • MI Ali; K Ehata; M Kusunoki; S Ohshima
    PHYSICA C ELSEVIER SCIENCE BV 325 (3-4) 143 - 152 0921-4534 1999/11 [Refereed]
     
    The complex surface impedance (Z(s)) of a superconductor is comprised of two unequal components, surface resistance (R-s) and surface reactance (X-s). We have investigated the effects of R-s and X-s on the YBa2Cu3O7-x (YBCO) superconducting microstrip antenna properties (resonant frequency, input impedance, and gain) by theoretical analysis and experimentation. The antennas were fabricated from YBCO thin films on (100) MgO single crystal substrate at 11.7 GHz. The investigation of the antenna properties reveals that the X-s of the superconducting thin film mainly influences the antenna resonant frequency (f(r)) and has small influence on the antenna input impedance (R-m). On the other hand, R-s mainly affects the input impedance of the antenna. The antenna gain, and hence the efficiency, is found to be influenced by the film surface resistance. The antennas were characterized in the temperature range of 10-90 K. Possible influences of the substrate dielectric properties (permittivity, epsilon(r) and loss tangent, tan delta) on the antenna properties were also considered in the investigation. (C) 1999 Elsevier Science B.V. All rights reserved.
  • K Ehata; M Kusunoki; S Ohshima
    ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS SCRIPTA TECHNICA-JOHN WILEY & SONS 82 (11) 59 - 69 8756-663X 1999/11 [Refereed]
     
    The surface resistance of superconductors is smaller than that of normal conductors by several orders of magnitude. Hence, a superconducting microwave device has lower loss and higher performance than a normal conducting one. Since the mobile communication systems have become popular and cryocoolers of small size and light weight have been fabricated in recent years, research activity on superconducting microwave devices has been enhanced. In this paper, the design, fabrication, and characterization of a patch antenna using a high-temperature superconducting thin film are reported. It is demonstrated that the superconducting patch antenna has higher gain than a normal conducting one. The temperature dependence of the resonant frequency, the input resistance, and the power handling properties are also discussed. (C) 1999 Scripta Technica.
  • KD Develos; M Kusunoki; M Mukaida; S Ohshima
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY IOP PUBLISHING LTD 12 (11) 887 - 889 0953-2048 1999/11 [Refereed]
     
    We have examined the effect of varying the CeO2 buffer layer thickness on the microwave surface resistance R-s and surface morphology of YBCO films deposited by pulsed laser deposition. Above the critical thickness value d(c) of CeO2 at similar to 90 nm, the surface roughness and areal density of outgrowths of the film increased significantly. The YBCO films grown on CeO2 with thickness less than d(c) were completely c-axis oriented and had lower c-axis lengths than those grown on CeO2 with thickness greater than d(c). R-s measured via the sapphire dielectric resonator technique was significantly lower for the YBCO film grown on CeO2 with thickness less than d(c). The increase in the R-s value when the buffer layer thickness is greater than d(c) is considered to be due to the increased surface outgrowths and presence of a-axis domains in the YBCO film. Changes in the microstructure and orientation of the YBCO films were found to be strongly influenced by the underlying CeO2 layer.
  • M Mukaida; Y Takano; K Chiba; T Moriya; M Kusunoki; S Ohshima
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY IOP PUBLISHING LTD 12 (11) 890 - 892 0953-2048 1999/11 [Refereed]
     
    45 degrees grain boundaries, which drastically increase surface resistance (R-S) in superconducting YBa2Cu3O7-delta films for microwave devices on MgO substrates, are eliminated using a new buffer layer of BaSnO3. BaSnO3 buffer layers and YBa2Cu3O7-delta films are grown by ArF pulsed laser deposition. Epitaxial relationships among BaSnO3, YBa2Cu3O7-delta and MgO are confirmed by x-ray phi-scanning. The Rs values of the YBa2Cu3O7-delta films are measured using a dielectric resonator with 22 GHz TE011 mode. The epitaxial YBa2Cu3O7-delta films grown on BaSnO3 buffered MgO substrates show lower R-S than YBa2Cu3O7-delta films directly grown on MgO substrates. The BaSnO3 buffer layer which enables YBa2Cu3O7-delta films to grow without 45 degrees grain boundaries at a optimum film growth condition is attractive for microwave applications.
  • M Kusunoki; Y Takano; M Mukaida; S Ohshima
    PHYSICA C ELSEVIER SCIENCE BV 321 (1-2) 81 - 85 0921-4534 1999/08 [Refereed]
     
    The effect of in-plane 0-45 degrees grain boundaries on surface resistance (R-s) of c-axis YBa2Cu3Oy (YBCO) films on MgO substrates is discussed. Samples that have various densities of 45 degrees rotated grains were prepared using a self-template technique. The R-s values at 22 GHz were measured by the dielectric resonator method using a cryocooler. The R-s systematically changed corresponding to the amount of 0-45 degrees grain boundaries. Conspicuous feature of the films including 0-45 degrees grain boundaries is a large residual surface resistance. The R-s of almost perfectly in-plane aligned YBCO film scaled to 10 GHz were 0.12 m Omega at 20 K and 0.67 m Omega at 77 K on the assumption of tan delta = 0, respectively. (C) 1999 Elsevier Science B.V. All rights reserved.
  • M Mukaida; Y Takano; K Chiba; T Moriya; M Kusunoki; S Ohshima
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS JAPAN J APPLIED PHYSICS 38 (8B) L926 - L928 0021-4922 1999/08 [Refereed]
     
    A new BaSnO3 buffer layer is proposed for controlling the in-plane orientation of YBa2Cu3O7-delta films grown on MgO substrates. BaSnO3 buffer layers and YBa2Cu3O7-delta films are grown by pulsed laser deposition. 45 degrees grain boundaries in YBa2Cu3O7-delta films grown on MgO (001) substrates, which are fatal defects for microwave device applications, are eliminated using the BaSnO3 buffer layer. YBa2Cu3O7-delta films grown at an optimum growth temperature of 710 degrees C on BaSnO3 buffer layers on MgO (001) substrates show lower surface resistance (R-S) than those on MgO(001)substrates without BaSnO3 buffer layers.
  • KD Develos; M Kusunoki; M Mukaida; S Ohshima
    PHYSICA C ELSEVIER SCIENCE BV 320 (1-2) 21 - 30 0921-4534 1999/07 [Refereed]
     
    We have investigated the effect of the deposition rate, as a direct function of the laser pulse repetition rate, on the surface morphology of CeO2 films deposited by the pulsed laser deposition (PLD) technique on r-cut Al2O3 (1 (1) over bar 02) substrates. The critical thickness is defined as the thickness before the onset of increased growth of large islands and abrupt increase in surface roughening. Two regimes of growth were found within the investigated range of deposition rate. It is found out that in the high deposition rate-regime (within 2-4 nm/min), the critical thickness is similar to 90 nm, but in the low deposition rate-regime (less than 1 nm/min), the critical thickness is shifted to similar to 40 nm. Films belonging to these two regimes of crystalline growth were found to have characteristically different formations and surface morphologies. As observed through atomic force microscopy (AFM), the surface morphology is composed of longitudinal islands forming a maze-like pattern in the high deposition rate-regime, while the characteristic morphology was composed of rounded islands in the low deposition rate-regime. Significant reduction in the areal density of large islands and characteristically smoother films was achieved using a low deposition rate. (C) 1999 Elsevier Science B.V. All rights reserved.
  • Shigetoshi Ohshima; Akira Kamimura; Masanobu Kusunoki
    IEEE Transactions on Applied Superconductivity 9 (2) 2187 - 2190 1051-8223 1999 [Refereed]
     
    The high-resolution Bitter pattern technique has been used to observe vortex movement of oxide superconductors, Bi2St2CaCu2Oz (BI2212). The Bitter pattern was observed in field-cooled (FC) and zero-field cooled (ZFC) experiments. We also examined vortex movement of the BI2212 single crystal in which transport current was applied parallel to the c plane, and a de magnetic field applied normal to the c plane at the Ni decoration. The Ni decoration pattern was observed using a scanning electron microscope (SEM) and an atomic force microscope ( AFM). Through observation of the Ni decoration pattern, we can identify vortex movement. The vortices moved into the sample on FC experiment, and the direction of vortex movement was approximately normal to the edge of the sample. We also found the vortex movement in a line under application of transport currents. They moved hopping among pinning centers due to Lorentz force. © 1999 IEEE.
  • M. Kusunoki; T. Suto; D. Okai; Y. Takano; M. Mukaida; S. Ohshima
    IEEE Transactions on Applied Superconductivity 9 (2) 1932 - 1935 1051-8223 1999 [Refereed]
     
    The effects of the crystallinity and surface roughness of CeOz buffer on It-plane A1}O3 substrate on the microwave surface resistance (RJ of YBBjCUjO YBCO) thin films are discussed. We estimated Rf from the transmission characteristics of the microstrip line resonator at 25 K and 6.7 GHz. X-ray diffraction (XRD) of 6-26 and -scan showed that CeO, was completely (OOl)-oriented and in-plane aligned crystal Four CeO: samples with different thicknesses were prepared nsing identical conditions except for the deposition time. The dependence of Rf on CeO, thickness was measured in the range from 10 nm to 200 nm. The value of Rt was minimum at CeO2 thickness of 100 nm. The dependence of A( vs CeO2 thickness was similar to that of the amount of a-axis domains against the thickness. The crystallinity of thin CeOj was poor because the lattice was strongly strained by A12O3. This affected the quality of the upper YBCO layer. In contrast, thick CeO2 had excellent crystallinity. However, for the thickness of more than 100 nm a drastic change in surface morphology was observed by atomic force microscopy (AFM). A number of projections appeared on the CeO,surface. These projections act as nucleation centers for the a-axis domains. © 1999 IEEE.
  • Katsufumi Ehata; Mohamrnad Idris All; Masanobu Kusunoki; Shigetoshi Ohshima
    IEEE Transactions on Applied Superconductivity 9 (2) 3081 - 3084 1051-8223 1999 [Refereed]
     
    Measured results of power handling capability characteristics of superconducting patch antenna and it's improvement are reported. A direct-fed patch antenna is fabricated by YBa2Cu3Oy, thin film with 50nm thickness. The gain of the antenna does not change with the applied power up to 26.3dBm at 12.3K, but drop of the gain is observed more than 26.5dBm. It is found by electromagnetic analysis that this gain drop occurs due to huge current concentration in the direct-fed patch. However, this current concentration can be reduced using the gap-coupled feed, and breakdown power is expected to be three times larger than that of direct feed. © 1999 IEEE.
  • New Measurement Technique of the Surface Resistance Rs using the Microstrip Resonator
    D. Okai; T. Tomiyama; M. Kusunoki; M. Mukaida; S. Ohshima
    Advances in Superconductivity 5 1259 - 1262 1999 [Refereed]
  • Influence of the Microstructure of a CeO2 Buffer Layer on the Superconducting Properties of YBa2Cu3Oy on Al2O3
    K. D. Develos; M. Kusunoki; S. Ohshima
    Advances in Superconductivity 5 1109 - 1112 1999 [Refereed]
  • Growth Manner of c-axis Oriented YBa2Cu3Oy Thin Films
    M. Mukaida; M. Kusunoki; S. Ohshima
    Advances in Superconductivity 5 1019 - 1022 1999 [Refereed]
  • M. Mukaida; Y. Takano; M. Kusunoki; S. Ohshima
    Advances in Superconductivity Springer-Verlag 5 1125 - 1128 1999 [Refereed]
  • Effect of Substrate Lattice Mismatch on the Crystallographic properties of YBa2Cu3Oy Thin Films for Microwave Devices
    Y. Takano; M. Mukaida; M. Kusunoki; S. Ohshima
    Advances in Superconductivity 5 1129 - 1132 1999 [Refereed]
  • T. Tomiyama; M. Kusunoki; M. Mukaida; S. Ohshima
    Advances in Superconductivity Springer-Verlag 5 1255 - 1258 1999 [Refereed]
  • EHATA Katsufumi; KUSUNOKI Masanobu; OHSHIMA Shigetoshi
    The transactions of the Institute of Electronics, Information and Communication Engineers 一般社団法人電子情報通信学会 12 (12) 915 - 923 0915-1907 1998/12 [Refereed]
     
    超伝導体は通常の金属に比べて数けた小さい表面抵抗を有するため, 超電導体を用いた低損失な高周波デバイスの実現が期待されている.特に近年に見られる移動体通信の急速な普及と, 超伝導デバイスの冷却に用いる冷凍機の小型化技術の進歩に伴い, 超伝導体を用いた高周波デバイスの研究が盛んに行われている.本論文では, 酸化物超伝導薄膜を用いたパッチアンテナの設計・試作・評価について述べる.超伝導パッチアンテナは, 同じ形状の常伝動アンテナに比べて高い利得を有することが明らかとなり, 超伝導アンテナの高効率性を実証した.また, アンテナ特性の温度変化の原因についての考察や, 耐電力特性の測定結果とその向上策, 小型冷凍機を用いた超伝導アンテナの実用化についての検討などについて述べる.
  • KD Develos; M Kusunoki; S Ohshima
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS JAPAN J APPLIED PHYSICS 37 (11) 6161 - 6169 0021-4922 1998/11 [Refereed]
     
    We studied the surface morphology and orientation of CeO2 films grown by pulsed laser ablation (PLA) on r-cut (1 (1) over bar 02) Al2O3 substrates and evaluated the effects of predeposition annealing conditions of Al2O3 and film thickness of CeO2, The annealing of Al2O3 substrates improves the smoothness of the surface and performing this in high vacuum leads to better crystallinity and orientation of deposited CeO2 films compared to those annealed in oxygen. A critical value of the film thickness was found beyond which the surface roughness increases abruptly. Atomic force microscopy (AFM) study showed that the surface of CeO2 films is characterized by a mazelike pattern. Increasing the film thickness leads to the formation of larger islands which cause the increase in the surface roughness of the films. The areal density and height of these islands increased with film thickness.
  • EHATA Katsufumi; KUSUNOKI Masanobu; OHSHIMA Shigetoshi
    The Transactions of the Institute of Electronics,Information and Communication Engineers. C-(0xF9C2) The Institute of Electronics, Information and Communication Engineers 81 (12) 915 - 923 0915-1907 1998 
    超伝導体は通常の金属に比べて数けた小さい表面抵抗を有するため, 超電導体を用いた低損失な高周波デバイスの実現が期待されている.特に近年に見られる移動体通信の急速な普及と, 超伝導デバイスの冷却に用いる冷凍機の小型化技術の進歩に伴い, 超伝導体を用いた高周波デバイスの研究が盛んに行われている.本論文では, 酸化物超伝導薄膜を用いたパッチアンテナの設計・試作・評価について述べる.超伝導パッチアンテナは, 同じ形状の常伝動アンテナに比べて高い利得を有することが明らかとなり, 超伝導アンテナの高効率性を実証した.また, アンテナ特性の温度変化の原因についての考察や, 耐電力特性の測定結果とその向上策, 小型冷凍機を用いた超伝導アンテナの実用化についての検討などについて述べる.
  • Study on Optimum Configuration on Microstrip Bandpass Filters
    T. Tomiyama; D. Okai; M. Kusunoki; S. Ohshima
    Advances in Superconductivity 5 1157 - 1160 1998 [Refereed]
  • Examination of the Microstripline Resonator for Measurement of the Magnetic Penetration Depth
    D. Okai; T. Tachiki; Y. Shinkai; M. Kusunoki; S. Ohshima
    Advances in Superconductivity 5 1161 - 1164 1998 [Refereed]
  • K. Ehata; M. Kusunoki; S. Ohshima; H. Kinder
    Advances in Superconductivity 5 1153 - 1156 1998 [Refereed]
  • Akira Fujimaki; Masanobu Kusunoki; Masaru Kito; Syuji Yoshida; Hiroya Andoh; Hisao Hayakawa
    IEEE Transactions on Applied Superconductivity 7 2399 - 2402 1051-8223 1997/12 [Refereed]
     
    We have investigated the performances of several types of vortex flow transistors including nanobridge vortex flow transistors (NBVFTs) based on a parallel array of nanobridges planar Josephson vortex flow transistors (planar JVFTs) based on a parallel array of grain boundary Josephson junctions and new JVFTs with a stacked structure (stacked JVFTs). Considering the integration and the reduction of the L/R time constant the areas of the transistors were restricted to less than 3 5 O-4m2. A NBVFT showed a flux-to-voltage transfer function of 2.6mV/Q which was one order of magnitude larger than that of the other transistors. In contrast the NBVFTs showed a very small current gain due to a large kinetic inductance of a nanobridge while the NBVFT had the smallest area among the three. A planar JVFT with asymmetric geometry was easy to fabricate and showed a current gain of 2.2 at 4.2K. However the planar JVFT requires a large area leading to a long response time other than the internal delay time. A stacked JVFT also showed a current gain of 2.5 at 4.2K. A layered structure yielded a strong coupling between the body of the JVFT and the control line. Due to this strong coupling the response time of the stacked JVFT was considerably improved compared to that of the p lanar JVFT. © 1997 IEEE.
  • M Kusunoki; A Osuka; K Ehata; S Ohshima; H Masumoto; T Hirai
    JOURNAL OF THE JAPAN INSTITUTE OF METALS JAPAN INST METALS 61 (9) 951 - 955 0021-4876 1997/09 
    YBa2Cu3Oy (YBCO) superconducting thin films were deposited on MgO single crystals by induction-coil-coupled sputtering. The effects of the induction coil on the qualities of YBCO thin films are examined. Uniformity of film thicknesses below +/-5% was obtained over an area of 40 mm diameter using a 50 mm diameter target by the condition of the substrate-target distance of 90 mm. Even in the area of 60 mm diameter which was wider than that of the target, the uniformity of thickness within +/-17% was obtained. In order to clarify the effects of the induction-coil, we studied the dependence of the critical temperature (T-c) and the full width at half maximum (FWHM) of the films on the applying power of coil. T-c and FWHM showed optimum Values at the applying coil power of 70W. It is confirmed from these results that the induction-coil operated effectively to fabricate high quality films. The epitaxial relations of YBCO films on MgO single crystal substrates were examined by X-ray pole figure measurements. Basically film of YBCO was aligned with the c-axis perpendicular to the substrate surface. The film deposited at the coil power of 70W exhibited well single-oriented grains with the a- or b-axis parallel to the a-axis of MgO. However, films deposited at the applying coil power of 0W contained grains with two different orientations which were rotated by 45 degrees. Scanning electron microscopy (SEM) of the film surface showed the films to consist of a smooth background surface and a distribution of particles. Energy dispersive X-ray analysis (EDAX) measurements showed that the Ba concentration was larger than that of exact stoichiometric composition. Auger electron spectroscopy (AES) revealed that the elements contained in the particles were richer in Ba than in the smooth background surface. The BaCuO2 particles seemed to precipitate on the surface of the film.
  • M Kusunoki; A Osuka; K Ehata; S Ohshima; H Masumoto; T Hirai
    JOURNAL OF THE JAPAN INSTITUTE OF METALS JAPAN INST METALS 61 (9) 951 - 955 0021-4876 1997/09 [Refereed]
     
    YBa2Cu3Oy (YBCO) superconducting thin films were deposited on MgO single crystals by induction-coil-coupled sputtering. The effects of the induction coil on the qualities of YBCO thin films are examined. Uniformity of film thicknesses below +/-5% was obtained over an area of 40 mm diameter using a 50 mm diameter target by the condition of the substrate-target distance of 90 mm. Even in the area of 60 mm diameter which was wider than that of the target, the uniformity of thickness within +/-17% was obtained. In order to clarify the effects of the induction-coil, we studied the dependence of the critical temperature (T-c) and the full width at half maximum (FWHM) of the films on the applying power of coil. T-c and FWHM showed optimum Values at the applying coil power of 70W. It is confirmed from these results that the induction-coil operated effectively to fabricate high quality films. The epitaxial relations of YBCO films on MgO single crystal substrates were examined by X-ray pole figure measurements. Basically film of YBCO was aligned with the c-axis perpendicular to the substrate surface. The film deposited at the coil power of 70W exhibited well single-oriented grains with the a- or b-axis parallel to the a-axis of MgO. However, films deposited at the applying coil power of 0W contained grains with two different orientations which were rotated by 45 degrees. Scanning electron microscopy (SEM) of the film surface showed the films to consist of a smooth background surface and a distribution of particles. Energy dispersive X-ray analysis (EDAX) measurements showed that the Ba concentration was larger than that of exact stoichiometric composition. Auger electron spectroscopy (AES) revealed that the elements contained in the particles were richer in Ba than in the smooth background surface. The BaCuO2 particles seemed to precipitate on the surface of the film.
  • Masanobu Kusunoki; Akira Osuka; Katsufumi Ehata; Sigetoshi Ohshima; Hirosi Masumoto; Toshio Hirai
    Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals Japan Institute of Metals (JIM) 61 (9) 951 - 955 0021-4876 1997 
    YBa2Cu3Oy (YBCO) superconducting thin films were deposited on MgO single crystals by induction-coil-coupled sputtering. The effects of the induction coil on the qualities of YBCO thin films are examined. Uniformity of film thicknesses below ±5% was obtained over an area of 40 mm diameter using a 50 mm diameter target by the condition of the substrate-target distance of 90 mm. Even in the area of 60 mm diameter which was wider than that of the target, the uniformity of thickness within ±17% was obtained. In order to clarify the effects of the induction-coil, we studied the dependence of the critical temperature (Tc) and the full width at half maximum (FWHM) of the films on the applying power of coil. Tc and FWHM showed optimum values at the applying coil power of 70W. It is confirmed from these results that the induction-coil operated effectively to fabricate high quality films. The epitaxial relations of YBCO films on MgO single crystal substrates were examined by X-ray pole figure measurements. Basically film of YBCO was aligned with the c-axis perpendicular to the substrate surface. The film deposited at the coil power of 70W exhibited well single-oriented grains with the a- or b-axis parallel to the a-axis of MgO. However, films deposited at the applying coil power of 0W contained grains with two different orientations which were rotated by 45°. Scanning electron microscopy (SEM) of the film surface showed the films to consist of a smooth background surface and a distribution of particles. Energy dispersive X-ray analysis (EDAX) measurements showed that the Ba concentration was larger than that of exact stoichiometric composition. Auger electron spectroscopy (AES) revealed that the elements contained in the particles were richer in Ba than in the smooth background surface. The BaCuO2 particles seemed to precipitate on the surface of the film.
  • Masanobu Kusunoki; Akira Osuka; Katsufumi Ehata; Sigetoshi Ohshima; Hirosi Masumoto; Toshio Hirai
    Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals Japan Institute of Metals (JIM) 61 (9) 951 - 955 0021-4876 1997 [Refereed]
     
    YBa2Cu3Oy (YBCO) superconducting thin films were deposited on MgO single crystals by induction-coil-coupled sputtering. The effects of the induction coil on the qualities of YBCO thin films are examined. Uniformity of film thicknesses below ±5% was obtained over an area of 40 mm diameter using a 50 mm diameter target by the condition of the substrate-target distance of 90 mm. Even in the area of 60 mm diameter which was wider than that of the target, the uniformity of thickness within ±17% was obtained. In order to clarify the effects of the induction-coil, we studied the dependence of the critical temperature (Tc) and the full width at half maximum (FWHM) of the films on the applying power of coil. Tc and FWHM showed optimum values at the applying coil power of 70W. It is confirmed from these results that the induction-coil operated effectively to fabricate high quality films. The epitaxial relations of YBCO films on MgO single crystal substrates were examined by X-ray pole figure measurements. Basically film of YBCO was aligned with the c-axis perpendicular to the substrate surface. The film deposited at the coil power of 70W exhibited well single-oriented grains with the a- or b-axis parallel to the a-axis of MgO. However, films deposited at the applying coil power of 0W contained grains with two different orientations which were rotated by 45°. Scanning electron microscopy (SEM) of the film surface showed the films to consist of a smooth background surface and a distribution of particles. Energy dispersive X-ray analysis (EDAX) measurements showed that the Ba concentration was larger than that of exact stoichiometric composition. Auger electron spectroscopy (AES) revealed that the elements contained in the particles were richer in Ba than in the smooth background surface. The BaCuO2 particles seemed to precipitate on the surface of the film.
  • Design and Fabrication of Metal and Superconducting Meander-Line Antennas
    T. Ogasawara; K. Ehata; M. Kusunoki; S. Ohshima
    Advances in Superconductivity 5 1269 - 1272 1997 [Refereed]
  • K. Ehata; Takashi Ogasawara; M. Kusunoki; S. Ohshima
    Advances in Superconductivity Springr-Verlag 5 1273 - 1276 1997 [Refereed]
  • Akira Fujimaki; Masanobu Kusunoki; Masaru Kito; Syuji Yoshida; Hiroya Andoh; Hisao Hayakawa
    IEICE Transactions on Electronics E79-C 1247 - 1252 0916-8524 1996/12 [Refereed]
     
    We have studied the performances of several types of vortex flow transistors including prototype flux flow transistors (FFTs), nanobridge vortex flow transistors (NBVFTs) based on a parallel array of nanobridges, planar Josephson vortex flow transistors (planar JVFTs) based on a parallel array of grain boundary Josephson junctions, and JVFTs with a stacked structure (stacked JVFTs). The NBVFTs had considerably higher magnetic field sensitivity and shorter response time than the FFTs. A flux-to-voltage transfer function dV/dG> of 2.6 m V/(Z>0 and a modulation depth of 0.5mV were obtained for the NBVFT composed of 2 nanobridges, while the current gain was small. The temperature dependence of the device parameters (the dynamic resistance and the inductance) suggests that the surface barrier to the Abrikosov vortex entry into the nanobridge strongly contributes to the relatively large dV/dQ values. The response time of the nanobridge is estimated to be 5 ps. On the other hand, the JVFTs showed large current gains because of the small kinetic inductance of the Josephson junction. The planar JVFT composed of 3 Josephson junctions with an asymmetrical geometry showed a current gain of 2.2 at 4.2 K. Also, the stacked JVFT showed the current gain of 2.0, while the maximum value of dV/dd> was 210/iV/OV The mutual inductance between the control line and the superconducting loop within the transistor was enhanced in the stacked JVFT. This enhancement may yield a short response time compared to that of the planar JVFT. When we apply these vortex flow transistors, we should take account of the properties peculiar to each transistor.
  • Hiroya Andoh; Masaru Kito; Masanobu Kusunoki; Akira Fujimaki; Hisao Hayakawa
    Superconductor Science and Technology Institute of Physics Publishing 9 (4A) A55 - A58 0953-2048 1996 [Refereed]
     
    We study variations of the order parameter and the vector potential with time using the rescaled time-dependent Ginzburg-Landau (TDGL) equation. Computer simulations for several conditions are performed to discuss the bias current distribution and the time necessary for the transition from the normal state to the superconducting state for the superconducting narrow line. As a result, we have found that the time necessary for the transition from the normal state to the superconducting state is an important factor to explain the I-V characteristics due to the vortex motion in superconducting narrow lines. © 1996 IOP Publishing Ltd.
  • A. Fujimaki; M. Kusunoki; M. Kito; S. Yoshida; H. Andoh; H. Hayakawa
    Advances in Superconductivity Springer Japan 5 1193 - 1198 1996 [Refereed]
  • M KUSUNOKI; H AKAIKE; A FUJIMAKI; H HAYAKAWA
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 5 (2) 3389 - 3392 1051-8223 1995/06 [Refereed]
     
    A miniaturization of high critical temperature (T-c) superconducting flux flow transistor (SFFT) was studied. The weak link width in the direction of the vortex flow was varied from 5 mu m to 10 mu m. The weak link length in the direction of bias current flow was fixed to 5 mu m. An increase in the gain was observed as the weak link width decreased. A control line was placed close to the weak link in the distance of 0.5 mu m to compensate for a decrease of magnetic sensitivity due to the miniaturization. We also improved the characteristics of the SFFT by forming a corrugated structure, which is named corrugation flux flow transistor (CFFT). A submicron patterning of YBa2Cu3Oy (YBCO) thin film was performed using focused ion beam lithography. Furthermore, we demonstrated a micro flux flow transistor (MFFT) consisting of a single bridge. The MFFT also operated as well as the CFFT.
  • H ANDOH; M KUSUNOKI; A FUJIMAKI; H HAYAKAWA
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 5 (2) 3377 - 3380 1051-8223 1995/06 [Refereed]
     
    We study the dynamics of vortex lines in superconducting flux flow transistors (SFFT's) made of High T-c superconductors, YBa2Cu3Ox. By computer simulations we have found that the density of vortex lines in SFFT's has close relation to device I-V characteristics rather than the velocity of vortex lines and that we have to increase the density of vortex lines to get ones with available gain. To be more concrete, in order to increase the density of vortex lines we have to lower surface barriers at the edge of weak-links and heighten the magnetic field near the edge of weak links. Especially, it is very important to heighten the magnetic field at the both sides of a link in a SFFT. Under the control of the control current, vortex lines in a SFFT are driven by the transport current (the bias current) mainly, but it is important to think the other forces such as the force by screening current, the force induced by the other vortices and the force induced by the image vortices. Based on the local stochastic equation of motion for vortex lines, computer simulations for some conditions are performed to discuss the dynamic behavior of vortex lines in a SFFT. We report the effect of the external magnetic field induced by the control current on the motion of vortex lines in SFFT's.
  • H ANDOH; M KUSUNOKI; A FUJIMAKI; H HAYAKAWA
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS JAPAN J APPLIED PHYSICS 34 (4A) L408 - L411 0021-4922 1995/04 [Refereed]
     
    The variation of critical current density with reduced line width and the temperature dependence of voltage for superconducting narrow lines are calculated theoretically. Critical currents of superconducting narrow lines increase progressively as the lines become narrower. The surface barriers for superconducting narrow lines are discussed in order to understand the progressive increase in critical currents of superconducting narrow lines. Furthermore, the thermally activated flux lines jumping over the surface barrier are discussed ill order to understand the temperature dependence of voltage for superconducting narrow lines. The results of calculation using the surface barriers agree well with experimental results.
  • Masanobu Kusunoki; Hiroya Andoh; Akira Fujimaki; Hisao Hayakawa
    Japanese Journal of Applied Physics 34 (5) L612 - L614 1347-4065 1995 [Refereed]
     
    Critical current densities (Jc’s) of submicron YBa2CuaOy (YBCO) lines were studied. Increase in Jc with reduc­tion of line width (w) was observed reproducibly, when temperature rise of the substrate is suppressed during plasma etching of YBCO. Intermittent etching and liquid-nitrogen cooling were very effective in obtaining sufficient cooling. Temperature dependence of current-voltage characteristics was interpreted in terms of thermal­ly activated vortex motion. This result indicated the existence of a potential barrier to vortex motion. In particu­lar, the surface barrier played an important role in determining Jc in the submicron lines. Furthermore, the depen­dence of Jc on w was strongly dependent on the current concentration to the edges due to Meissner effect. © 1995 The Japan Society of Applied Physics.
  • M KUSUNOKI; H AKAIKE; A FUJIMAKI; H HAYAKAWA
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS JAPAN J APPLIED PHYSICS 33 (8A) L1124 - L1127 0021-4922 1994/08 [Refereed]
     
    We have developed a new technique for YBa2Cu3Oy (YBCO) submicron structure formation. Nb films serving as etching masks are patterned into line structures with submicron dimensions, using focused ion beam lithography and a vertical etching technique of the Nb films. Then the mask patterns are accurately transferred to the YBCO film in an electron cyclotron resonance plasma etcher. Fine lines are successfully patterned down to 180 nm of the linewidth without any degradation of superconductivity, as long as a temperature rise is suppressed during plasma etching. The temperature dependence of the current-voltage characteristics can be interpreted in terms of the thermally activated vortex motion.
  • M KUSUNOKI; H YAMAMORI; A FUJIMAKI; Y TAKAI; H HAYAKAWA
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS JAPAN J APPLIED PHYSICS 32 (11A) L1609 - L1611 0021-4922 1993/11 [Refereed]
     
    The dependence of the gap voltage on impurities in Nb films is studied. The gap voltage is determined by the number of impurities included in the films. The impurities arise from the residual gas in the sputtering chamber before the deposition of Nb films. By reducing the impurities in the films, we obtain high-quality Nb/AlO(x)-Al/Nb Josephson junctions having the gap voltage of 2.95 mV which is close to that estimated from the energy gap of Nb bulk at 4.2 K. In addition, the use of a thin Al layer is also an important factor in obtaining excellent current-voltage characteristics.

Books etc

  • Function ＆ Materials, Dental Application of a Flexible Apatite Sheet
    本津 茂樹; 楠 正暢; 西川 博昭; 吉川 一志 (Joint work)シーエムシー出版 2011/04 
    ハイドロキシアパタイト（HAp）は歯や骨の主成分であり、生体適合性に優れているため、これまで人工骨や人工歯根をはじめとするインプラント素材として、広く医療分野に用いられている。しかし、HApはセラミックスであるため柔軟性に乏しく、硬くて脆いという欠点を持っており、これがHApの医療分野での応用の限界を決めていた。我々はHApのみからなる柔軟な極薄HApシートを開発することに成功し、このフレキシブルHApシートの歯科分野への応用を開始したので紹介した。
  • 持ちつ持たれつ生き物とエレクトロニクス（第2章）
    吉川 昭; 浅居 正充; 中桐 紘治; 秋濃 俊郎; 西川 博昭; 楠 正暢; 本津 茂樹; 堀江 和夫 (Joint work)（株）電気書院 2006/08 
    キラル媒質を中心とする人工電磁波媒質に関する内容を専門外の読者を対象として平易に解説した。
  • Porous Metals and Metal Foaming Technology, Addition of Advanced Biocompatibility to a Porous Artificial Root
    西川 博昭; 速水 尚; 本津 茂樹; 楠 正暢 (Joint work)社団法人 日本金属学会 2006/02 
    3次元的アンカリング効果をもつエンドポアインプラント表面に、レーザアブレーション法で高結晶性のハイドロキシアパタイト薄膜を成膜し、生体親和性の向上を図った。レーザアブレーション時のガス圧を高く設定することでアブレーション化学種とガス分子の衝突・散乱を増加させ、ポア深部への成膜を行なった。得られた試料を動物実験に用いたところ、μCT像によりポア深部への新生骨伝導が認められた（英文）。
  • 油圧マシンを使ったレジスタンストレーニングの理論と実際
    メディカルレビュー 2005

Conference Activities & Talks

  • スフェロイド培養足場作製のためのマイクロスタンプ装置の開発
    廣瀬 祐大; 東郷 秀孝; 中西 龍馬; 武内 大輝; 中川 秀夫; 楠 正暢
    第60 回日本生体医工学会大会  2021/06
  • 常峰知也; 岡田悠希; 楠正暢
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2016/08
  • Development of Objective ADL Assessment Particularly in Frail Older Adults Using a Kinect Sensor  [Not invited]
    N. Takeshima; T. Kohama; M. Kusunoki; T. Ogayu; S. Okada; E. Fujita; MM. Islam; WF. Brechue
    the 9th World Congress on Active Ageing  2016/06
  • FUJITA EIJI; OKADA SOICHI; KOHAMA TAKESHI; KUSUNOKI MASANOBU; HASEGAWA TAICHI; TAKESHIMA NOBUO
    体力科学  2015/12
  • OKADA SOICHI; OKADA SOICHI; OKADA SOICHI; FUJITA EIJI; KOHAMA TAKESHI; KUSUNOKI MASANOBU; NARITA MAKOTO; KATO YOSHIJI; TAKESHIMA NOBUO; TAKESHIMA NOBUO
    体力科学  2015/12
  • KUSUNOKI MASANOBU; KOHAMA TAKESHI; OKADA SOICHI; FUJITA EIJI; TAKESHIMA NOBUO
    体力科学  2015/12
  • TAKESHIMA NOBUO; OKADA SOICHI; OKADA SOICHI; KUSUNOKI MASANOBU; KOHAMA TAKESHI; FUJITA EIJI; HASEGAWA TAICHI
    体力科学  2015/12
  • SAITO AYAKA; TSUNEMINE TOMOYA; MAKINO TAKAYUKI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI
    日本バイオマテリアル学会大会予稿集  2015/11
  • SAITO AYAKA; TSUNEMINE TOMOYA; MAKINO TAKAYUKI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI
    応用物理学会秋季学術講演会講演予稿集(CD-ROM)  2015/08
  • MAKINO TAKAYUKI; FUJITA NAOKI; INAGAKI TAKAYA; SAKOISHI YASUHIRO; ASANO KATSUYA; KUSUNOKI MASANOBU
    日本セラミックス協会年会講演予稿集(CD-ROM)  2015/03
  • KOHAMA TAKESHI; KUSUNOKI MASANOBU; OKADA SOICHI; TAKESHIMA NOBUO
    体力科学  2015/02
  • HAYAMI TAKASHI; KUSUNOKI MASANOBU; TAMURA SHOICHI; TAMURA SHOICHI; OKADA KAZUMA; OKADA KAZUMA; HIROKAWA NORIYASU; SHIBUE TADASHI; OMASA MITSUSHI
    日本設計工学会研究発表講演会講演論文集  2015
  • フッ素濃度と結晶性にグラデーション構造を有するアパタイトシート作製法の検討  [Not invited]
    牧野隆之; 常峰知也; 楠正暢
    生体医工学シンポジウム2015  2015
  • チタン/プラスチックハイブリッド人工骨への応用を目的としたチタン薄膜の内部応力に関する研究  [Not invited]
    常峰知也; 牧野隆之; 楠正暢; 速水尚
    生体医工学シンポジウム2015  2015
  • FUJITA NAOKI; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2014/11
  • SAKOISHI YASUHIRO; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2014/11
  • MAKINO TAKAYUKI; FUJITA NAOKI; KUSUNOKI MASANOBU
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2014/08
  • FUJITA NAOKI; MAKINO TAKAYUKI; KUSUNOKI MASANOBU
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2014/08
  • HONTSU SHIGEKI; ISAI ARATA; YAMAMOTO EI; KATO NOBUHIRO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; YASUO KENZO; YOSHIKAWA KAZUSHI
    日本セラミックス協会年会講演予稿集(CD-ROM)  2014/03
  • Fabrication of hydroxyapatite thin film with entirely c-plane surface  [Not invited]
    Masanobu Kusunoki; Yasuhiro Sakoishi; Katsuya Asano; Naoki Fujita; Takayuki Makino; Daisuke Okai
    26th European Conference on Biomaterials  2014
  • MAEDA YUTA; NAMIKAWA HIROKI; ONIZUKA MASATOSHI; HASHISHITA NAOYA; MORIMOTO YUZURU; NISHINO MAKOTO; KOHAMA TAKESHI; KUSUMOTO YOSHIKI; ATARASHI YURI; KUSUNOKI MASANOBU
    医療情報学連合大会論文集  2013/11
  • MIYAKE TOMOKI; ITO DAISUKE; KOTANI KATSUMI; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2013/11
  • KOTANI KATSUMI; MIYAKE TOMOKI; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2013/11
  • SAKOISHI YASUHIRO; INOKUCHI RYO; NISHIKAWA HIROAKI; HONTSU SHIGEKI; HAYAMI TAKASHI; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2013/11
  • FUJITA NAOKI; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2013/11
  • MORITA TOMOKI; FUJITA NAOKI; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2013/11
  • TANAKA HIDETOSHI; SAKOISHI YASUHIRO; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2013/11
  • 西垣 勉; 西川 博昭; 楠 正暢
    Journal of bio-integration  2013/09
  • FUJITA NAOKI; MATSUDA TAIYO; MORITA TOMOKI; NISHIKAWA HIROAKI; HONTSU SHIGEKI; KUSUNOKI MASANOBU
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2013/08
  • FUJITA NAOKI; NISHIKAWA HIROAKI; HONTSU SHIGEKI; KUSUNOKI MASANOBU
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2013/08
  • ISAI ARATA; MATSUMOTO AKIKO; YAMAMOTO EI; KATO NOBUHIRO; NISHIKAWA AKIHIRO; KUSUNOKI MASANOBU; HONTSU SHIGEKI; YOSHIKAWA KAZUSHI
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2013/08
  • SAKOISHI YASUHIRO; FUJITA NAOKI; KUSUNOKI MASANOBU
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2013/08
  • ASANO KATSUYA; TAMURA MASAKAZU; FUJITA NAOKI; KUSUNOKI MASANOBU
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2013/08
  • HONTSU SHIGEKI; YOSHIKAWA KAZUSHI; ISAI ARATA; YAMAMOTO EI; KATO NOBUHIRO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; YAMAMOTO KAZUYO
    日本歯科理工学会誌  2013/03
  • Hontsu S; Yoshikawa K; Isai A; Yamamoto E; Kato N; Nishikawa H; Kusunoki M; Hashimoto Y; Yamamoto K
    The journal of the Japanese Society for Dental Materials and Devices  2013/03 
    We have successfully created a flexible hydroxyapatite (HAp) sheet of less than a few micrometers, and we have been trying to establish the all-HAp restoration technique for tooth enamel. In this study, we evaluated the re-calcification layer at the various sheets (amorphous HAp, HAp, amorphous HAp/amorphous calcium phosphate: ACP, HAp/ACP)-enamel interface by scanning electron microscope (SEM).
  • NISHIKAWA HIROAKI; TANAKA HIDEKAZU; ENDO TAMIO; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    Abstr JSAP MRS Jt Symp (CD-ROM)  2013
  • PrBa2Cu3Oyバッファ層を用いた極薄YBa2Cu3Oyの作製  [Not invited]
    三宅智貴; 伊藤大介; 小谷克己; 楠正暢
    電気関係学会関西連合大会  2013
  • レーザーデポジション法による歯科用アパタイトシート作製技術の 検討  [Not invited]
    藤田 尚希; 本津 茂樹; 西川 博昭; 楠 正暢
    生体医工学シンポジウム2013  2013
  • 液泡対策を目的とした歯科用スルーホールアパタイトシート作製法 の検討  [Not invited]
    浅野 克弥; 藤田 尚希; 松田 太陽; 本津 茂樹; 西川博昭; 楠 正暢
    生体医工学シンポジウム2013  2013
  • アパタイトコート水晶振動子マイクロバランスセンサの平滑表面作 製技術の検討  [Not invited]
    硲石 康裕; 藤田 尚希; 楠 正暢
    生体医工学シンポジウム2013  2013
  • 人工骨への応用を目的としたスーパーエンジニアリングプラスチッ クに対する生体親和性の付与  [Not invited]
    岡田 和真; 楠 正暢; 速水 尚
    生体医工学シンポジウム2013  2013
  • 細胞／スフェロイドアレイを目的としたアパタイトドット作製法の検討  [Not invited]
    田村 将一; 浅野 克弥; 藤田 尚希; 楠 正暢
    生体医工学シンポジウム2013  2013
  • OKADA KAZUMA; FUJIWARA TAKATOSHI; KUSUNOKI MASANOBU; HAYAMI TAKASHI
    日本バイオマテリアル学会シンポジウム予稿集  2012/11
  • ONISHI MASAHIRO; NONAKA KURATO; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HONTSU SHIGEKI; NISHIKAWA HIROAKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2012/11
  • NAKABAYASHI ISSEI; NONAKA KURATO; HARASAKI TAKAMICHI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HONTSU SHIGEKI; NISHIKAWA HIROAKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2012/11
  • Daisuke Ito; Katsumi Kotani; Tomoki Miyake; Hiroaki Nishikawa; Shigeki Hontsu; Masanobu Kusunoki
    IEEJ Transactions on Electronics, Information and Systems  2012/11 
    We studied a method to obtain superconductivity even in very thin films of YBa2Cu3Oy (YBCO). These thinner YBCO films will be able to be applied to optics/superconductivity (opt/super) converters with high optical sensitivity. Opt/super converters composed of YBCO nano-bridges or nano-wires require a low critical current that is determined by the film thickness. According to X-ray diffraction, critical temperature (Tc) and residual resistivity ratio for the substrates of MgO (100), SrTiO 3 (100) and NdGaO3 (110), superconducting features are influenced by the lattice mismatching layer in YBCO closing to a hetero-epitaxy interface between YBCO and single crystal substrate. YBCO films with different thicknesses varying from 80 to 10 nm were prepared on SrTiO3, using a suitable temperature. The values of Tc slightly decreased when reducing YBCO thickness from 80 to 20 nm, and then declined sharply at less than 20 nm. It is considered that a layer in the beginning of deposition less than 20 nm causes stress in the crystal lattice. The Tc of 20 nm YBCO film on SrTiO3 was 80.8 K. It can work above liquid N2 temperature. © 2012 The Institute of Electrical Engineers of Japan.
  • MIYAKE TOMOKI; KOTANI KATSUMI; ITO DAISUKE; NISHIKAWA HIROAKI; HONTSU SHIGEKI; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2012/11
  • KOTANI KATSUMI; MIYAKE TOMOKI; ITO DAISUKE; NISHIKAWA HIROAKI; HONTSU SHIGEKI; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2012/11
  • NAKAJIMA HIROYUKI; YAMAWAKI NOBUYUKI; NISHIKAWA HIROAKI; HONTSU SHIGEKI; KUSUNOKI MASANOBU
    電気関係学会関西連合大会講演論文集(CD-ROM)  2012/11
  • SAKOISHI YASUHIRO; INOKUCHI RYO; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI; HAYAMI TAKASHI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2012/11
  • OKADA KAZUMA; FUJIWARA TAKATOSHI; KUSUNOKI MASANOBU; HAYAMI TAKASHI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2012/11
  • HONTSU SHIGEKI; ISAI ARATA; YAMAMOTO EI; KATO NOBUHIRO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; YOSHIKAWA KAZUSHI
    日本バイオマテリアル学会シンポジウム予稿集  2012/11
  • SAKOISHI YASUHIRO; IGUCHI RYO; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI; HAYAMI TAKASHI
    日本バイオマテリアル学会シンポジウム予稿集  2012/11
  • HONTSU SHIGEKI; YOSHIKAWA KAZUSHI; ISAI ARATA; YAMAMOTO EI; KATO NOBUHIRO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; YAMAMOTO KAZUYO
    日本歯科理工学会誌  2012/09
  • Hontsu S; Yoshikawa K; Isai A; Yamamoto E; Kato N; Nishikawa H; Kusunoki M; Hashimoto Y; Yamamoto K
    The journal of the Japanese Society for Dental Materials and Devices  2012/09 
    We have fabricated a flexible hydroxyapatite (HAp) using a pulsed laser deposition (PLD) method and a film isolation technique. We adhered the HAp sheet to the dentine surface using a calcium phosphate aqueous in order to apply this sheet to hyperesthetic treatment. In the present study, the time dependence of the composition at the interfaces between the HAp/TCP sheet and the dentine was evaluated using X-ray diffraction measurement, and the adhesive strength between the HAp/TCP sheet and the dentine surface was evaluated by quasi-static tensile tests.
  • IWAKI TOMOAKI; MARUYAMA TOSHIRO; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI; YOSHIKAWA KAZUSHI
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2012/09
  • ISAI ARATA; MARUYAMA TOSHIRO; MATSUDA TAIYO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; YOSHIKAWA KAZUSHI
    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM)  2012/09
  • HONTSU SHIGEKI; HIGUCHI YUICHI; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; KOMASA YUTAKA
    バイオインテグレーション学会誌  2012/08
  • In vitro response and adhesive strength of titanium and hydroxyapatite bilayer coating on polyetereterketon (PEEK) substrate  [Not invited]
    T. Hayami; M. Kusunoki; K. Okada; T. Jinno
    The 5th International Conference “Biomaterials, Tissue Engineering & Medical Devices”  2012/08
  • HONTSU SHIGEKI; YOSHIKAWA KAZUSHI; MATSUDA TAIYO; KATO NOBUHIRO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; YAMAMOTO KAZUYO
    日本歯科理工学会誌  2012/03
  • Hontsu S; Yoshikawa K; Matsuda T; Kato N; Nishikawa H; Kusunoki M; Hashimoto Y; Yamamoto K
    The journal of the Japanese Society for Dental Materials and Devices  2012/03 
    We have succeeded to fabricate flexible hydroxyapatite (HAp) sheet for adhering directly onto tooth and bone surfaces using a pulsed laser deposition method and a film isolation technique. We have investigated a method to regenerate the tooth enamel by just attaching the flexible HAp sheet onto the tooth surface with artificial saliva. In this paper, we report the result of adhering the HAp sheet to the enamel assisted by an TCP over-deposition and calcium phosphate aqueous solution in order to reduce the period required to regenerate the enamel.
  • HONTSU SHIGEKI; YOSHIKAWA KAZUSHI; MATSUDA TAIYO; KUSUNOKI MASANOBU; MARUYAMA TOSHIRO; YAMAMOTO EI; KATO NOBUHIRO; NISHIKAWA HIROAKI
    日本セラミックス協会年会講演予稿集  2012/03
  • 穴あき極薄アパタイトシートを用いたエナメル質の修復  [Not invited]
    本津茂樹; 以西新; 山本衛; 加藤暢宏; 西川博昭; 楠正暢; 速水尚; 吉川一志
    日本歯科保存学会秋季学術大会(第137回)  2012
  • スーパーエンジニアリングプラスチックに対するチタンスパッタ膜の密着強さの評価  [Not invited]
    岡田和真; 藤原孝俊; 楠正暢,速 尚
    日本バイオマテリアル学会シンポジウム2012  2012
  • Investigation of very thin YBa2Cu3Oy film for the optics / superconductivity converters  [Not invited]
    D. Itoh; K. Kotani; T.Miyake; H. Nihiskawa; S. Hontsu; M. Kusunoki
    International Symposium on Superconductivity (ISS'12)  2012
  • Investigation of etching process parameters on HTS nano-devices  [Not invited]
    T.Miyake; K. Kotani; D. Itoh; H. Nihiskawa; S. Hontsu; M. Kusunoki
    International Symposium on Superconductivity (ISS'12)  2012
  • Fabrication of superconducting nano-wire using YBa2Cu3Oy  [Not invited]
    K. Kotani; T.Miyake; D. Itoh; H. Nihiskawa; S. Hontsu; M. Kusunoki
    International Symposium on Superconductivity (ISS'12)  2012
  • Crystallization Control of Hydroxyapatite Sheet  [Not invited]
    M. Kusunoki; T. Matsuda; N. Fujita; Y. Sakoishi; R. Iguchi; S. Hontsu; H. Nishikawa; T. Hayami
    The 5th International Conference “Biomaterials, Tissue Engineering & Medical Devices”  2012
  • Application of the flexibile hydroxyapatite sheet to artifical enamel  [Not invited]
    S. Hontsu; N. Katou; E. Yamamoto; M. Kusunoki; H. Nishikawa; T. Hayami; K. Yoshikawa
    9th World Biomaterial Congress  2012
  • Adhesive Strength Between Flexible Hydroxyapataite Sheet and Tooth Enamel  [Not invited]
    E. Yamamoto; N. Kato; H. Nishikawa; M. Kusunoki; T. Hayami; S. Hontsu
    24th Symposium and Annual Meeting of International Society of Ceramics in Medcine (Bioceramics 24)  2012
  • H. Nishikawa; R. Yoshikawa; H. Nakajima; M. Kusunoki; T. Hayami; S. Hontsu
    24th European Conference on Biomaterials - Annual Conference of the European Society for Biomaterials  2011/12
  • YOSHIKAWA RYOTA; NAKAJIMA HIROYUKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HONTSU SHIGEKI; NISHIKAWA HIROAKI
    日本バイオマテリアル学会大会予稿集  2011/11
  • HONTSU SHIGEKI; MARUYAMA TOSHIRO; KATO NOBUHIRO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HASHIMOTO YOSHIYA
    日本バイオマテリアル学会大会予稿集  2011/11
  • MATSUDA TAIYO; INOKUCHI RYO; NISHIKAWA HIROAKI; HAYAMI TAKASHI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2011/10
  • ITANI AKIYA; KAWAGUCHI TADAO; KAWAYAMA IWAO; KANKI TERUO; KUSUNOKI MASANOBU; HONTSU SHIGEKI; TANAKA HIDEKAZU; TONOUCHI MASAYOSHI; NISHIKAWA HIROAKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2011/10
  • MORITA YUSUKE; KUSUNOKI MASANOBU; HONTSU SHIGEKI; NISHIKAWA HIROAKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2011/10
  • YOSHIKAWA RYOTA; NAKAJIMA HIROYUKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HONTSU SHIGEKI; NISHIKAWA HIROAKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2011/10
  • ITO DAISUKE; MIYAKE TOMOKI; KOTANI KATSUMI; TAKAHASHI SHIN'YA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2011/10
  • NAKAJIMA HIROYUKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2011/10
  • HONTSU SHIGEKI; KATO NOBUHIRO; YAMAMOTO EI; MARUYAMA TOSHIRO; MATSUDA TAIYO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; YOSHIKAWA KAZUSHI; YAMAMOTO KAZUYO
    日本セラミックス協会秋季シンポジウム講演予稿集  2011/09
  • ITANI FUMIYA; KAWAYAMA IWAO; KANKI TERUO; KUSUNOKI MASANOBU; HONTSU SHIGEKI; TANAKA HIDEKAZU; TONOUCHI MASAYOSHI; NISHIKAWA HIROAKI
    応用物理学会学術講演会講演予稿集(CD-ROM)  2011/08
  • MORITA YUSUKE; KUSUNOKI MASANOBU; HONTSU SHIGEKI; NISHIKAWA HIROAKI
    応用物理学会学術講演会講演予稿集(CD-ROM)  2011/08
  • YOSHIKAWA RYOTA; NAKAJIMA HIROYUKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HONTSU SHIGEKI; NISHIKAWA HIROAKI
    応用物理学会学術講演会講演予稿集(CD-ROM)  2011/08
  • YOSHIKAWA RYOTA; NAKAJIMA HIROYUKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集(CD-ROM)  2011/03
  • アパタイトシートの高効率作製システムの開発  [Not invited]
    松田太陽; 井口亮; 西川 博昭; 速水尚; 楠正暢; 本津茂樹
    平成23 年電気関係学会関西支部連合大会  2011
  • 3次元培養足場での神経細胞挙動と足場サイズの関係  [Not invited]
    中島浩之; 楠正暢; 西川博昭; 本津茂樹
    生体医工学シンポジウム2011  2011
  • LaFeO3/SrTiO3-δの電気・磁気特性  [Not invited]
    井谷章也; 川山巌; 神吉輝夫; 楠正暢; 本津茂樹; 田中秀和; 斗内政吉; 西川博昭
    第72回応用物理学会学術講演会  2011
  • パルスレーザー堆積法によって作製されるハイドロキシアパタイト薄膜の高品質化  [Not invited]
    吉川亮太; 中島浩之; 楠正暢; 速水尚; 本津茂樹; 西川博昭
    日本バイオマテリアル学会第6回関西若手研究発表会  2011
  • 3次元格子構造を持つスキャフォールドの格子間隔と神経細胞の挙動の関係  [Not invited]
    中島浩之; 楠正暢; 西川博昭; 本津茂樹
    日本バイオマテリアル学会第6回関西若手研究発表会  2011
  • 3インチウエハーサイズのハイドロキシアパタイトシートの作製  [Not invited]
    松田太陽; 末廣隼也; 西川博昭; 速水尚; 楠正暢; 本津茂樹
    日本バイオマテリアル学会第6回関西若手研究発表会  2011
  • 大面積アパタイトシートのシート面内均一性の評価  [Not invited]
    松田太陽; 末廣隼也; 西川博昭; 速水尚; 楠正暢; 本津茂樹
    第6回日本セラミクス協会関西支部各術講演会  2011
  • Regeneration of tooth enamel by flexible hydroxyapatite shee  [Not invited]
    S. Hontsu; N. Katou; E. Yamamoto; H. Nishikawa; M. Kusunoki; T. Hayami; K. Yoshikawa
    23rd Symposium and Annual Meetin of International Society for Ceramics in Medicine (Bioceramics 23)  2011
  • Fabrication of Fluoridated Hydroxyapatite Thin Film and Sheet by Pulsed Laser Deposition Technique  [Not invited]
    S. Hontsu; N. Katou; H. Nishikawa; M. Kusunoki; T. Hayami; Y. Hashimoto
    11th Asian Bio Ceramics Symposium  2011
  • Fabrication of Flexible Fluoridated Hydroxyapatite Sheet by Pulsed Laser Deposition Technique  [Not invited]
    S. Hontsu; H. Nishikawa; M. Kusunoki; T. Hayami; Y. Hashimoto
    The 3rd Asian Biomaterials Congress  2011
  • KAWAKAMI YOSHIAKI; NAKAJIMA HIROYUKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2010/11
  • MATSUDA TAIYO; KAWAKAMI YOSHIAKI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2010/11
  • YOSHIKAWA RYOTA; NAKAJIMA HIROYUKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2010/11
  • OKITA AKIHIRO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2010/11
  • NAKAJIMA HIROYUKI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2010/11
  • HONTSU SHIGEKI; KAWAKAMI YOSHIAKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; YOSHIKAWA KAZUSHI; YAMAMOTO KAZUYO
    日本バイオマテリアル学会大会予稿集  2010/11
  • NAKAJIMA HIROYUKI; MIZOKOSHI MASATO; KANDA HIROTAKA; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2010/10
  • TAKAHASHI SHIN'YA; ITO DAISUKE; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2010/10
  • KAWAKAMI YOSHIAKI; MATSUDA TAIYO; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HAYAMI TAKASHI; HONTSU SHIGEKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2010/10
  • TAKAHASHI SHIN'YA; BABA YASUHITO; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西連合大会講演論文集(CD-ROM)  2010/10
  • NISHIKAWA HIROAKI; SHINOHARA YU; HASHIMOTO YOSHIYA; KUSUNOKI MASANOBU; HAYAMI TAKASHI; HONTSU SHIGEKI
    応用物理学会学術講演会講演予稿集(CD-ROM)  2010/08
  • TSUTATANI AKARI; MATSUMURA KAZUAKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; HAYAMI TAKASHI
    日本セラミックス協会年会講演予稿集  2010/03
  • 神経の活動電位計測を目的とした3次元神経ネットワーク作成法の検討  [Not invited]
    中島浩之; 溝越正人; 神田浩孝; 楠正暢; 西川博昭; 本津茂樹
    平成22年電気関係学会関西連合大会  2010
  • The restoration and Conservation of dental enamel using the flexible apatite sheet  [Not invited]
    S. Hontsu; K. Yoshikawa; N. Katou; T. Hayami; H. Nishikawa; M. Kusunoki; K. Yamamoto
    5th International Symposium on Apatites and Correlative Biomaterials  2010
  • Scratch Test of Simulated Body Fluid-derived Hydroxyapatite Film on Biomedical Titanium Substrates  [Not invited]
    T. Hayami; H. Nishikawa; M. Kusunoki; K. Matsumura; S. Hontsu; M. Ohmasa; T. Sawai
    International Congress on Ceramics  2010
  • Deposition of hydroxyapatite thin films on titanium substrates and assessment of interfacial adhesion using a scratch test  [Not invited]
    T. Hayami; H. Nishikawa; M. Kusunoki; K. Matsumura; S. Hontsu; N. Hirokawa; T. Shibue
    International Conference on Ceramic Processing Science  2010
  • Composite coating of hydroxyapatite for rapid and durable bone fixation of dental implant  [Not invited]
    T. Hayami; H. Nishikawa; M. Kusunoki; Y. Higuchi; Y. Hashimoto; S. Hontsu
    The 23rd European Conference on Biomaterials  2010
  • SHINOHARA YU; TSUTATANI AKARI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2009/11
  • KAWAKAMI YOSHIAKI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2009/11
  • BABA YASUHITO; TAKAHASHI SHIN'YA; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2009/10
  • MUSHIBE KEIGO; TOGO HIDETAKA; WADA TAKUJI; KUSUNOKI MASANOBU; HASHIMOTO NORIYA; NISHIKAWA HIROAKI; MOTOTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2009/10
  • HONTSU SHIGEKI; HASHIMOTO YOSHIYA; AMETANI AKIHIRO; YOSHINO KAZUTAKA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; KUBOKI YOSHINORI
    日本セラミックス協会秋季シンポジウム講演予稿集  2009/09
  • ナノスケール生体アパタイト/HAp 積層被覆インプラントの骨伝導に関する組織学的検討  [Not invited]
    本津 茂樹; 速水 尚; 西川 博昭; 楠 正暢; 橋本 典也; 樋口 裕一
    第 21 回アパタイト研究会  2009
  • PLD アパタイトの大面積化の検討  [Not invited]
    川上佳晃; 楠 正暢; 西川博昭; 本津茂樹
    第 21 回アパタイト研究会  2009
  • Preparation of Carbonate Apatite thin films and Evaluation of its Biocompatibility  [Not invited]
    Shigeki Hontsu; Hiroaki Nishikawa; Naoki Taninaka; Masanobu Kusunoki; Yoshiya Hashimoto; Y. Higuchi
    ICMAT 2009 & IUMRS-ICA 2009 (International Conference on Materials for Advanced Technologies 2009 & Intnational Union of Material Resarch Societies - International Conference in Asia 2009)  2009
  • TOGO HIDETAKA; WADA TAKUTO; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会シンポジウム予稿集  2008/11
  • WADA TAKUTO; TOGO HIDETAKA; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会シンポジウム予稿集  2008/11
  • ASANO HIROKI; TOGO HIDETAKA; HAMAHATA AKARI; HAMAHATA AKARI; YOSHINO KAZUTAKA; AMETANI AKIHIRO; KUBOKI YOSHINORI; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    日本バイオマテリアル学会シンポジウム予稿集  2008/11
  • SHINOHARA YU; NISHIKAWA HIROAKI; HASHIMOTO YOSHIYA; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    日本バイオマテリアル学会シンポジウム予稿集  2008/11
  • TANINAKA NAOKI; TANINAKA NAOKI; TOGO HIDETAKA; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会シンポジウム予稿集  2008/11
  • KAGEYAMA SUGURU; NAKAGAWA YUSUKE; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2008/10
  • HINAKO FUMIYO; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2008/10
  • BABA YASUHITO; OTA SHINSUKE; OTA SHINSUKE; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI; DODA YASUSHI; KAWAYAMA ITSUKI; MURAKAMI HIRONARI; TONOUCHI MASAYOSHI; FUJIMAKI AKIRA
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2008/10
  • WADA TAKUSHI; TOGO HIDETAKA; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2008/10
  • TOGO HIDETAKA; WADA TAKUSHI; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2008/10
  • HORAITANI NAOTAKA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    日本セラミックス協会秋季シンポジウム講演予稿集  2008/09
  • KAJINO KENMEI; KIMURA TAISHI; HORII YUKI; KUSUNOKI MASANOBU; KAWAYAMA IWAO; INOUE MASUMI; TONOUCHI MASAYOSHI; FUJIMAKI AKIRA
    応用物理学関係連合講演会講演予稿集  2008/03
  • 高感度QCMチタンセンサの開発  [Not invited]
    橋本典也; 箕浦沙恵; 伊藤敦; 川越徹也; 西浦亜紀; 本田領; 松本尚之
    第52回日本歯科理工学会学術講演会  2008
  • SFQ-光インターフェース用YBCOナノブリッジ特性の作製  [Not invited]
    梶野顕明; 木村大至; 堀井佑樹; 楠正暢; 川山巌; 井上真澄; 斗内政吉; 藤巻朗
    第55回応用物理学関係連合講演会  2008
  • Fabrication of HAp/ZnO bilayer for protein sensitive field effect transistor  [Not invited]
    Hiroaki Nishikawa; Masanobu Kusunoki; Shigeki Hontsu
    2008 MRS Fall Meeting  2008
  • RI SEIKICHIKICHI; WATANABE MOTOO; KOIZUMI DAISUKE; HASEGAWA RYUICHI; YAMADA TOMOMI; TAKESHIMA NOBUO; KUSUNOKI MASANOBU
    体力科学  2007/12
  • 李 成吉吉; 渡辺 元夫; 小泉 大亮; 長谷川 龍一; 山田 ともみ; 竹島 伸生; 楠 正暢
    体力科學  2007/12
  • ASANO HIROKI; TOGO HIDETAKA; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2007/11
  • TANA SOKI; TANA SOKI; NISHIKAWA HIROAKI; HASHIMOTO YOSHIYA; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2007/11
  • HONTSU SHIGEKI; ASANO HIROKI; TOGO HIDETAKA; NISHIKAWA HIROAKI; HASHIMOTO YOSHIYA; KUSUNOKI MASANOBU
    日本バイオマテリアル学会大会予稿集  2007/11
  • KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; GODA SHOTARO; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2007/11
  • NAKAGAWA YUSUKE; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2007/11
  • OTA SHINSUKE; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI; DODA YASUSHI; KAWAYAMA IWAO; MURAKAMI HIRONARI; TONOUCHI MASAYOSHI; FUJIMAKI AKIRA
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2007/11
  • AIDA SHOTARO; HINAKO FUMIYO; IMAI HARUKA; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2007/11
  • TOGO HIDETAKA; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; MOTOTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2007/11
  • WADA TAKUSHI; TOGO HIDETAKA; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; MOTOTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2007/11
  • Hayami Takashi; Nishikawa Hiroaki; Shibue Tadashi; Kusunoki Masanobu; Hontsu Shigeki; Yamamoto Masao
    年次大会講演論文集 : JSME annual meeting  2007/09 
    To improve osteoblasts attachment to a porous implant such as artificial tooth root, plasma spray coating of hydroxyapatite (HA) has been attempted applying. However, plasma sprayed HA powders plugged up a way in holes of the porous structure which is important way of bone growth. To solve this problem, in this experiment, HA thin film 300nm thick was deposited by pulsed laser deposition (PLD) technique on the tooth root. HA thin film was reached easily to the depth of the porous structure. In 3 weeks after operation, the bone in-growth speed in HA-deposited tooth root was increased as compared with non HA-deposited one. In 5 weeks after operation, no particular difference between HA-deposited and non HA-deposited tooth roots was found. HA thin film deposition on a porous implant was effective in the improvement of osteoblast attachment.
  • HAYAMI TAKASHI; NISHIKAWA HIROAKI; SHIBUE TADASHI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; YAMAMOTO MASAO
    日本機械学会年次大会講演論文集  2007/09
  • HONMA HISAYUKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学会学術講演会講演予稿集  2007/09
  • ASANO HIROKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学会学術講演会講演予稿集  2007/09
  • NISHIKAWA HIROAKI; HONMA HISAYUKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学会学術講演会講演予稿集  2007/09
  • INOUE MASUMI; SUGIMOTO MANABU; KAJINO KENMEI; FUJIMAKI AKIRA; KUSUNOKI MASANOBU
    応用物理学会学術講演会講演予稿集  2007/09
  • KAJINO AKIRA; KAJINO AKIRA; SUGIMOTO MANABU; INOUE MASUMI; FUJIMAKI AKIRA; KUSUNOKI MASANOBU
    応用物理学関係連合講演会講演予稿集  2007/03
  • NISHIKAWA HIROAKI; OKUMURA DAICHI; HATANAKA RYOTA; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2007/03
  • KUSUNOKI MASANOBU; TOGO HIDETAKA; KAWABATA KIMIYO; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2007/03
  • HONMA HISAYUKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2007/03
  • HONTSU SHIGEKI; ASANO HIROKI; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HIGUCHI YUICHI
    日本口腔インプラント学会学術大会プログラム・抄録集  2007
  • SFQ/光インターフェース技術のためのYBa2Cu3O7-xナノブリッジの作製  [Not invited]
    梶野顕明; 杉本学; 楠正暢; 川山巌; 井上真澄; 斗内政吉; 藤巻朗
    第6回低温工学・超伝導若手合同講演会  2007
  • YBCOナノブリッジの光応答特性  [Not invited]
    太田真輔; 楠正暢; 西川博昭; 本津茂樹; 川山巌; 村上博成; 斗内政吉; 藤巻朗
    第6回低温工学・超伝導若手合同講演会  2007
  • アパタイトのバイオセンサー応用〜ＱＣＭによる歯質表面のシミュレーション〜  [Not invited]
    楠正暢; 合田祥太朗; 橋本典也; 西川博昭; 本津茂樹
    第20回アパタイト研究会  2007
  • 薄膜作製技術を用いた可撓性アパタイトシートの作製と細胞培養足場への応用  [Not invited]
    浅野弘樹; 生物理工; 東郷秀孝; 生物理; 橋本典也; 科大; 西川博昭; 楠正暢; 近大生物理工; 本津茂樹
    第20回アパタイト研究会  2007
  • 生体内吸収性アパタイト/有機複合ソフトマテリアルの作製とその生体親和性の評価  [Not invited]
    東郷秀孝; 浅野弘樹; 橋本典也; 楠正暢; 西川博昭; 本津茂樹
    第20回アパタイト研究会  2007
  • GBR用生体内吸収性アパタイト／有機複合シートの作製と評価  [Not invited]
    東郷秀孝; 浅野弘樹; 橋本典也; 樋口裕一; 楠正暢; 西川博昭; 本津茂樹
    第11回生体関連セラミックス討論会  2007
  • 可撓性透明アパタイトシートの作製と細胞シート応用  [Not invited]
    浅野弘樹; 西川博昭; 楠正暢; 本津茂樹
    第11回生体関連セラミックス討論会  2007
  • アパタイトコートQCMセンサの歯科応用  [Not invited]
    合田祥太郎; 楠正暢; 橋本典也; 西川博昭; 本津茂樹
    第11回生体関連セラミックス討論会  2007
  • ハイドロキシアパタイトを用いた神経細胞のパターニング技術の検討  [Not invited]
    東郷秀孝; 楠正暢; 橋本典也; 西川博昭; 本津茂樹
    生体医工シンポジウム2007  2007
  • 細胞の三次元的成長を目的としたハイドロキシアパタイトマイクロウェルの作製  [Not invited]
    和田拓士; 東郷秀孝; 楠正暢; 橋本典也; 西川博昭; 本津茂樹
    生体医工シンポジウム2007  2007
  • Utility of quartz crystal microbalance sensor with natural apatite composition  [Not invited]
    hashimoto
    1st Asian Biomaterials Congress  2007
  • Optical response of high temperature superconducting nanobridge  [Not invited]
    Shinsuke Ota; Masanobu Kusunoki; Hiroaki Nishikawa; Shigeki Hontsu; Yasushi Doda; Iwao Kawayama; Hironaru Murakami; Masayoshi Tonouchi; Akira Fujimaki
    20th INTERNATIONAL SYMPOSIUM ON SUPERCONDUCTIVITY  2007
  • Application of epitaxial hydroxyapatite thin film as a biosensor  [Not invited]
    H. Nishikawa; H. Homma; M. Kusunoki; S. Hontsu
    European MRS 2007 Spring Meeting, Strasbourg, France  2007
  • KOIZUMI DAISUKE; RI SEITETSU; NASU ERIKO; TAKESHIMA NOBUO; KUSUNOKI MASANOBU
    体力科学  2006/12
  • HONTSU SHIGEKI; HATANAKA RYOTA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI
    日本バイオマテリアル学会大会予稿集  2006/11
  • KUSUNOKI MASANOBU; KAWABATA KIMIYO; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2006/11
  • HATANAKA RYOTA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2006/11
  • OGAWA ATSUKO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2006/11
  • IMAI HARUKA; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2006/11
  • OKUMURA DAICHI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2006/11
  • IMAI HARUKA; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2006/11
  • OTA SHINSUKE; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI; KAWAYAMA ITSUKI; TONOUCHI MASAYOSHI; FUJIMAKI AKIRA
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2006/11
  • HACHITA KAZUMI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2006/11
  • TAMIYA MASAKI; WADA TAKUSHI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    電気関係学会関西支部連合大会講演論文集(CD-ROM)  2006/11
  • HATANAKA RYOTA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; HONTSU SHIGEKI
    応用物理学会学術講演会講演予稿集  2006/08
  • NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学会学術講演会講演予稿集  2006/08
  • IMAI HARUKA; KUSUNOKI MASANOBU; HASHIMOTO NORIYA; NISHIKAWA HIROAKI; MOTOTSU SHIGEKI
    日本生体医工学会大会プログラム・論文集  2006/05
  • UEDA RYOHEI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; MOTOZU SHIGEKI; RI SEIKICHIKICHI; KOIZUMI DAISUKE; MASU ERIKO; TAKESHIMA NOBUO
    日本生体医工学会大会プログラム・論文集  2006/05
  • TAMIYA MASAKI; OTA SHINSUKE; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本生体医工学会大会プログラム・論文集  2006/05
  • HATANAKA RYOTA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2006/03
  • OTA SHINSUKE; HATTA KAZUMI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; HONTSU SHIGEKI; KAWAYAMA ISAO; TONOUCHI MASAYOSHI; FUJIMAKI AKIRA
    応用物理学関係連合講演会講演予稿集  2006/03
  • KUSUNOKI MASANOBU; NISHIOKA YUSHU; NISHIKAWA HIROAKI; HONTSU SHIGEKI; KAWAI TOMOJI
    応用物理学関係連合講演会講演予稿集  2006/03
  • OGAWA ATSUKO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2006/03
  • NISHIKAWA HIROAKI; OKUMURA DAICHI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2006/03
  • HASHIMOTO NORIYA; HIGUCHI YUICHI; KOMASA HIROSHI; OKAZAKI TEIJI; NAKAMURA MASAAKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; MOTOZU SHIGEKI
    日本金属学会講演概要  2006/03
  • HONTSU SHIGEKI; OHASHI YOSHIO; HIGUCHI YUICHI; KUSUNOKI MASANOBU; NISHIKAWA HIROAKI; OKAZAKI JOJI; KOMASA YUTAKA
    日本口腔インプラント学会学術大会プログラム・抄録集  2006
  • サーキットトレーニングのための油圧レジスタンスマシンによる計測法  [Not invited]
    楠正暢; 上田亮平; 西川博昭; 本津茂樹; 李成吉吉; 小泉大亮; 那須英里子; 竹島伸生
    生体医工学シンポジウム2006  2006
  • ハイドロキシアパタイトを用いた神経細胞の選択的吸着  [Not invited]
    楠正暢; 川畑君代; 橋本典也; 西川博昭; 本津茂樹
    生体医工学シンポジウム2006  2006
  • レーザーアブレーション法により作製した生体アパタイト薄膜の生体適合性評価  [Not invited]
    橋本典也; 樋口裕一; 小正裕; 岡崎定司; 中村正明; 西川博昭; 楠正暢; 本津茂樹
    第138回日本金属学会講演集  2006
  • 生体親和性・吸収性を持つ可撓性透明アパタイト細胞シートの作製  [Not invited]
    本津茂樹; 畑中良太; 西川博昭; 楠正暢; 速水尚
    第28回バイオマテリアル学会  2006
  • 高温超伝導ナノブリッジ作製プロセスの検討  [Not invited]
    太田真輔; 楠正暢; 西川博昭; 本津茂樹; 川山巌; 斗内政吉; 藤巻朗
    第5回低温工学・超伝導若手合同講演会  2006
  • 高齢者の身体活動向上を目指した加速度計の有効性  [Not invited]
    小泉大亮; 李成吉吉; 那須英里子; 竹島伸生; 楠正暢
    第61回体力医学会  2006
  • 透明アパタイトシートでの生細胞観察  [Not invited]
    畑中良太; 西川博昭; 楠正暢; 橋本典也; 本津茂樹
    第67回応用物理学会学術講演会 講演予稿集  2006
  • Preparation of Hydroxyapatite Sheet with Various Shapes and its Application to Programmable Tissue Engineering Scaffold  [Not invited]
    H. Nishikawa; R.Hatanaka; M. Kusunoki; S. Hontsu
    2006 MRS Fall Meeting  2006
  • Improvment of hydroxyapatite deposition on titanium dental implant using ArF laser ablation:effect on osteoblast biocompatibility in vitoro  [Not invited]
    Y. Hashimoto; M. Kusunoki; R. Hatanaka; K. Hamano; H. Nishikawa; Y. Hosoi; S. Hontsu; M. Nakamura
    11th International Conferrences on Modern Materials and Technologies  2006
  • Improvement of fabrication process for HTS nano-bridges  [Not invited]
    Shinsuke Ohta a; Masanobu Kusunoki a; Hiroaki Nishikawa a; Shigeki Hontsu a; Iwao Kawayama b; Masayoshi Tonouchi b; Akira Fujimaki c
    Nano-Virtual-Labs Joint Workshop on Superconductivity (NVLS2005)  2006
  • HTS nano-bridges for SFQ-optics converter  [Not invited]
    M.Kusunoki; S. Ohta; H. Nishikawa; S. Hontsu; I. Kawayama; M. Tonouchi; A. Fujimaki
    Applied Superconductivity Conference 2006  2006
  • Application of hydroxyapatite thin film as a biosensor  [Not invited]
    H. Nishikawa; D. Okumura; M. Kusunoki; S. Hontsu
    APS March Meeting 2007  2006
  • HATANAKA RYOTA; HASHIMOTO YOSHIYA; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HOSOI YOSHIHIKO; HAYAMI TAKASHI; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2005/11
  • OGAWA ATSUKO; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2005/11
  • OKUMURA DAICHI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    日本バイオマテリアル学会大会予稿集  2005/11
  • NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学会学術講演会講演予稿集  2005/09
  • HASHIMOTO Y; HATANAKA R; KUSUNOKI M; NISHIKAWA H; HONTSU S; NAKAMURA M
    Journal of the Japanese Society for Dental Materials and Devices  2005/09
  • NISHIKAWA HIROAKI; KAWASHIMA MASAMI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; KAWAI TOMOJI
    応用物理学関係連合講演会講演予稿集  2005/03
  • IGUCHI KAZUTERU; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2005/03
  • NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; OKUMURA DAICHI; KAWASHIMA MASAMI; NAKAMORI MASAYA; HONTSU SHIGEKI; KAWAI TOMOJI
    応用物理学関係連合講演会講演予稿集  2005/03
  • ハイドロキシアパタイトコート基材が神経分化誘導に及ぼす影響の検討  [Not invited]
    竹原俊幸; 楠正暢; 西川博昭; 畑中良太; 松本和也; 佐伯和弘; 本津茂樹; 細井美彦
    日本動物細胞工学会  2005
  • 天然ハイドロキシアパタイト被覆基材の骨誘導能の検討  [Not invited]
    川田延幸; 濱野恵子; 楠正暢; 西川博昭; 畑中良太; 橋本典也; 松本和也; 佐伯和弘; 本津茂樹; 細井美彦
    日本動物細胞工学会  2005
  • ナノスケールアパタイト薄膜の医療応用  [Not invited]
    本津茂樹; 楠正暢; 西川博昭; 速水尚; 橋本典也; 樋口裕一
    社団法人レーザー学会第338回研究会  2005
  • 集中定数型超伝導フィルタの作製とチューニング特性の評価  [Not invited]
    井口一輝; 楠正暢; 揚村和幸; 西川博昭; 本津茂樹
    春季低温工学・超伝導学会  2005
  • ハイドロキシアパタイトのa/c軸配向制御  [Not invited]
    西川博昭; 川島将実; 楠正暢; 本津茂樹; 川合知二
    春季応用物理学関係連合講演会  2005
  • 誘電体共振器法を用いた超伝導薄膜の表面抵抗測定システムの作製とその再現性の検討  [Not invited]
    八田和己; 楠 正暢; 橋本 典也; 西川 博昭; 本津 茂樹
    電気関係学会関西支部連合大会  2005
  • ﾊｲﾄﾞﾛｷｼｱﾊﾟﾀｲﾄ吸着層を持つQCMﾊﾞｲｵｾﾝｻの作製条件の検討  [Not invited]
    今井 晴香; 楠 正暢; 橋本 典也; 西川 博昭; 本津 茂樹
    電気関係学会関西支部連合大会  2005
  • ﾊｲﾄﾞﾛｷｼアパタイトﾊﾞｲｵｾﾝｻの作製プロセスの検討  [Not invited]
    田宮雅樹; 西岡佑珠; 川畑君代; 楠正暢; 西川博昭; 本津茂樹
    電気関係学会関西支部連合大会  2005
  • 油圧式トレーニングマシンによる運動量の自動計測法に関する研究  [Not invited]
    上田亮平; 楠正暢; 西川博昭; 本津茂樹; 李成吉吉; 小泉大亮; 那須英里子; 竹島伸生
    生体医工学ｼﾝﾎﾟｼﾞｳﾑ2005  2005
  • 骨芽細胞培養による生体ｱﾊﾟﾀｲﾄ薄膜の生体親和性のin vitro評価  [Not invited]
    畑中良太; 橋本典也; 西川博昭; 楠正暢; 細井美彦; 速水尚; 本津茂樹
    生体医工学ｼﾝﾎﾟｼﾞｳﾑ2005  2005
  • 地域高齢者を対象とした加速度計付歩数計を用いた身体活動向上への取り組み  [Not invited]
    小泉大亮; 李成?; 那須英里子; 竹島伸生; 楠正暢
    第60回体力医学会  2005
  • 高齢有疾患者を対象とした油圧マシンを用いたレジスタンス運動の有用性  [Not invited]
    李成吉吉; 小泉大亮; 那須英里子; 竹島伸生; 竹田裕司; 楠正暢
    第60回体力医学会  2005
  • Tunable Range of Center Frequency and Bandwidth of Superconducting Bandpass Filter with Mechanically Movable Sapphire Rods  [Not invited]
    M. Kusunoki; S. Aga; K. Iguchi; H. Nishikawa; S. Hontsu
    European Conference on Applied Superconductivity（EUCAS'05）  2005
  • Fabrication of HTS nano-bridges for SFQ-optics converter  [Not invited]
    M.Kusunoki; S. Ohta; M. Tamiya; H. Nishikawa; S. Hontsu; I. Kawayama; M. Tonouchi; A. Fujimaki
    Nano-Virtual-Labs Joint Workshop on Superconductivity (NVLS2005)  2005
  • Coplaner superconducting lumped elements filter with meander-line inductors and inter-digital capacitors  [Not invited]
    S. Hontsu; K. Agemura; M. Kusunoki; H. Nishikawa; K. Iguchi
    International Superconductive Electronics Conference (ISEC '05)  2005
  • Biosensor Consists of Na - Doped Hydroxyapatite Thin Film  [Not invited]
    H. Nishikawa; M. Kusunoki; M.Kawashima; S. Hontsu; T.Kawai
    アメリカ物理学会定例3月ミーティング2005  2005
  • Addition of Advanced Biocompatibility to the Porous Artificial Root  [Not invited]
    H. Nishikawa; S. Hontsu; T. Hayami; M. Kusunoki
    4th International Conference on Porous Metals and Metal Foaming Technology (MetFoam2005)  2005
  • KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; KAWASHIMA MASAMI; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    日本バイオマテリアル学会シンポジウム予稿集  2004/11
  • KAWASHIMA MASAMI; HONTSU SHIGEKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HATANAKA RYOTA; MORITA YUKI; MASUDA IKUHISA; HAYAMI TAKASHI
    日本バイオマテリアル学会シンポジウム予稿集  2004/11
  • HATANAKA RYOTA; KAWASHIMA MASAMI; OHASHI YOSHIO; HIGUCHI YUICHI; KOMASA YUTAKA; OKAZAKI JOJI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI
    日本バイオマテリアル学会シンポジウム予稿集  2004/11
  • NISHIKAWA HIROAKI; NAKAMORI MASAYA; KAWASHIMA MASAMI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; KAWAI TOMOJI
    日本バイオマテリアル学会シンポジウム予稿集  2004/11
  • NISHIKAWA HIROAKI; KAWASHIMA MASAMI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; KAWAI TOMOJI
    日本バイオマテリアル学会シンポジウム予稿集  2004/11
  • IGUCHI KAZUKI; KUSUNOKI MASANOBU; AGEMURA KAZUYUKI; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    応用物理学会学術講演会講演予稿集  2004/09
  • KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; KAWASHIMA MASAMI; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    応用物理学会学術講演会講演予稿集  2004/09
  • NISHIKAWA HIROAKI; NAKAMORI MASAYA; KAWASHIMA MASAMI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; KAWAI TOMOJI
    応用物理学会学術講演会講演予稿集  2004/09
  • NISHIKAWA HIROAKI; KAWASHIMA MASAMI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; KAWAI TOMOJI
    応用物理学会学術講演会講演予稿集  2004/09
  • IGUCHI KAZUKI; KUSUNOKI MASANOBU; AGEMURA KAZUYUKI; NISHIKAWA HIROAKI; HONTSU SHIGEKI
    低温工学・超電導学会講演概要集  2004/05
  • IGUCHI KAZUKI; AGEMURA KAZUYUKI; MINE SHIGENOBU; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2004/03
  • AGEMURA KAZUYUKI; IGUCHI KAZUKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2004/03
  • KUSUNOKI MASANOBU; KAWASHIMA MASAMI; NISHIKAWA HIROAKI; HONTSU SHIGEKI; MORIMOTO KOICHI; KAWAI TOMOJI
    応用物理学関係連合講演会講演予稿集  2004/03
  • NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    応用物理学関係連合講演会講演予稿集  2004/03
  • NAKAMORI MASAYA; HONTSU SHIGEKI; KAWASHIMA MASAMI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; KAWAI TOMOJI
    応用物理学関係連合講演会講演予稿集  2004/03
  • 中心周波数・帯域幅のメカニカル独立制御に適した集中定数型超伝導フィルタの設計  [Not invited]
    井口一輝; 揚村和幸; 楠正暢; 西川博昭; 本津茂樹
    低温工学・超電導若手合同講演会  2004
  • 酸素制御ErBa2CuOx薄膜  [Not invited]
    向田昌志; 堀井滋; 松本要; 吉田隆; 一瀬中; 楠正暢
    低温工学・超電導学会  2004
  • サファイアロッドチューニングによる高温超電導フィルタの特性改善  [Not invited]
    斉藤敦
    低温工学・超電導学会  2004
  • ハイドロキシアパタイトコート層を持つQCMセンサの開発  [Not invited]
    楠正暢; 橋本典也; 川島将実; 西川博昭; 本津茂樹; 河合知二
    日本バイオマテリアル学会シンポジウム2004  2004
  • エキシマレーザーアブレーション法を用いたハイドロキシアパタイトコートQCMセンサーの開発  [Not invited]
    橋本典也; 楠正暢; 川島将実; 西川博昭; 本津茂樹; 中村正明
    第44回日本歯科理工学会学術講演会  2004
  • チューナブルフィルタの実現に向けた集中定数型超伝導フィルタの設計  [Not invited]
    揚村和幸; 井口一輝; 西川博昭; 楠正暢; 本津茂樹
    日本学術振興会超伝導エレクトロニクス第146委員会「光マイクロ波」分科会および応用物理学会関西支部合同講演会  2004
  • Mechanical Tuning of Superconducting Lumped Element Filter  [Not invited]
    Applied Superconductivity Conference 2004  2004
  • Magnetoelectric properties of magnetic/ferroelectric multilayered thin film  [Not invited]
    H. Nishikawa; M. Kusunoki; M.Kawashima; S. Hontsu; T.Kawai
    アメリカ物理学会定例3月ミーティング2004  2004
  • KAWASHIMA MASAMI; HONTSU SHIGEKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HASHIMOTO YOSHIYA; OHASHI YOSHIO; HIGUCHI YUICHI
    日本バイオマテリアル学会大会予稿集  2003/12
  • HONTSU SHIGEKI; KAWASHIMA MASAMI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HAYAMI TAKASHI; OHASHI YOSHIO; HIGUCHI YUICHI; OKAZAKI JOJI; KOMASA YUTAKA
    日本バイオマテリアル学会大会予稿集  2003/12
  • 酸素制御ErBa2Cu3Ox膜  [Not invited]
    MUKAIDA MASASHI; HORII SHIGERU; OHAZAMA TOORU; ICHINOSE ATARU; MATSUMOTO KANAME; YOSHIDA YUTAKA; KUSUNOKI MASAAKI; SAITO ATSUSHI; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  2003/12
  • NISHIKAWA HIROAKI; IGUCHI KAZUKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI
    低温工学・超電導学会講演概要集  2003/12
  • MUKAIDA M; HORII S; OHAZAMA T; ICHINOSE A; MATSUMOTO K; YOSHIDA Y; KUSUNOKI M; SAITO A; OHSHIMA S
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2003/12
  • S Ohshima; H Mikami F Aida A; Saito; M; Mnkaida M. Kusunoki
    The 8th IUMRS Intemational Conference on Advanced Materials(IUMRS-ICAM2003), Japan  2003/12
  • Takezawa Motonori; Aita Fumihiro; Kusunoki Masanobu; Saito Atsushi; Mukaida Masashi; Ohshima Shigetoshi
    Proceedings of the Society Conference of IEICE  2003/09
  • TAKEZAWA MOTONORI; AITA FUMIHIRO; KUSUNOKI MASANOBU; SAITO ATSUSHI; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  2003/09
  • Aita F; Takezawa M; Adachi M; Mikami H; Kusunoki M; Saito A; Mukaida M; Ohshima S
    Proceedings of the Society Conference of IEICE  2003/09
  • AITA FUMIHIRO; TAKEZAWA MOTONORI; ADACHI MANATO; MIKAMI HIROSHI; KUSUNOKI MASANOBU; SAITO ATSUSHI; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  2003/09
  • NAKAMORI MASAYA; HONTSU SHIGEKI; KAWASHIMA MASAMI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; KAWAI TOMOJI
    応用物理学会学術講演会講演予稿集  2003/08
  • KAWASHIMA MASAMI; HONTSU SHIGEKI; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; KAWAI TOMOJI
    応用物理学会学術講演会講演予稿集  2003/08
  • AGEMURA KAZUYUKI; IGUCHI KAZUKI; MINE SHIGENOBU; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; KAWAI TOMOJI
    応用物理学会学術講演会講演予稿集  2003/08
  • NOGUCHI AKIRA; KURIAN J; AMEMURA TAKASHI; IWATA NOBUYUKI; KUSUNOKI MASANOBU; TANABE KEIICHI; MORISHITA TADATAKA; YAMAMOTO HIROSHI
    応用物理学会学術講演会講演予稿集  2003/08
  • IGUCHI KAZUKI; AGEMURA KAZUYUKI; MINE SHIGENOBU; NISHIKAWA HIROAKI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; KAWAI TOMOJI
    応用物理学会学術講演会講演予稿集  2003/08
  • NISHIKAWA HIROAKI; TERAKAGO MASAFUMI; KUSUNOKI MASANOBU; HONTSU SHIGEKI; KAWAI TOMOJI
    応用物理学会学術講演会講演予稿集  2003/08
  • ADACHI Michito; NOGUCHI Takafumi; AITA Hirofumi; MIKAMI Hiroshi; SAITO Atushi; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2003/05
  • MORIAI KATSUNARI; UJIIE KENGO; YAMADA HIRONOBU; AIZAWA KEIJI; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI; MARINARO D G; DOU S X
    低温工学・超電導学会講演概要集  2003/05
  • SHIRAKAWA MASANOBU; YAMAZAKI YUYA; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  2003/05
  • TAKEZAWA MOTONORI; TAKEDA MAKOTO; MIKAMI HIROSHI; SAITO ATSUSHI; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  2003/05
  • AITA FUMIHIRO; MIKAMI HIROSHI; TAKEDA MAKOTO; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  2003/05
  • SHIRAKAWA M; YAMAZAKI Y; KUSUNOKI M; MUKAIDA M; OHSHIMA S
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2003/05
  • MUKAIDA MASASHI; MIURA MASASHI; UNNO JUN'ICHI; YAMAZAKI YUYA; ARAKI TAKESHI; HIRABAYASHI IZUMI; TANABE KEIICHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  2003/05
  • OHAZAMA T; YAMAZAKI Y; SHINGAI Y; MIURA M; MATSUMOTO K; YOSHIDA Y; HORII S; ICHINOSE A; KUSUNOKI M; MUKAIDA M; OSHIMA S
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2003/05
  • MORIAI Katsunari; UJIIE Kengo; YAMADA Hironobu; AIZAWA Keiji; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi; MARINARO D. G; DOU S. X
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2003/05
  • KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI; MUKAIDA MASASHI; SUNDARESAN A; TANAKA YASUTADA; ARAKI TAKESHI; HIRABAYASHI IZUMI; TANABE KEIICHI; HOCHMUTH H
    応用物理学関係連合講演会講演予稿集  2003/03
  • UNNO JUN'ICHI; MIURA MASASHI; MORIAI KATSUNARI; KURODA NAOJI; KUSUNOKI MASANOBU; MUNAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2003/03
  • OZAMA TOORU; YAMAZAKI YUYA; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2003/03
  • OSHIMA SHIGETOSHI; MORIAI KATSUNARI; YAMADA HIRONOBU; AIZAWA KEIJI; KUSUNOKI MASANOBU; MUKAIDA MASASHI
    応用物理学関係連合講演会講演予稿集  2003/03
  • MIURA MASASHI; UNNO JUN'ICHI; YAMAZAKI YUYA; ARAKI TAKESHI; HIRABAYASHI IZUMI; TANABE KEIICHI; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2003/03
  • MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2003/03
  • OSHIMA SHIGETOSHI; WATANABE SHINOBU; KUSUNOKI MASANOBU; MUKAIDA MASASHI
    応用物理学関係連合講演会講演予稿集  2003/03
  • MIKAMI HIROSHI; KUSUNOKI MASANOBU; AIZAWA KEIJI; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2003/03
  • Ba2NdTaOバッファ層を用いたMgO基板上のNdBa2Cu30δ薄膜の作製と評価  [Not invited]
    野口章; J.Kurian; 飴村隆; 岩田展幸; 楠正暢; 田辺圭一; 森下忠隆; 山本寛; 超電導工研; 目大理工; 山形大工
    秋季第64回応用物理学関係連合講演会  2003
  • 高温超電導体分配器の設計と評価  [Not invited]
    竹澤基範; 竹田真; 三上宏; 楠正暢; 向田昌志; 大嶋重利
    春季低温工学・超伝導学会  2003
  • YBCO薄膜のドライエッチング加工技術の検討と評価  [Not invited]
    安達学人; 野口恭史; 相田史裕; 三上宏; 齊藤敦; 楠正暢; 向田昌志; 大嶋重利
    春季低温工学・超伝導学会  2003
  • BaF2パウダーを用いたMOD法によるYBCO薄膜作製と評価  [Not invited]
    海野純一; 三浦正志; 森合克成; 黒田尚志; 楠 正暢; 向田昌志; 大嶋重利
    春季低温工学・超伝導学会  2003
  • マイクロ波デバイス用高温超伝導薄膜の開発の現状  [Not invited]
    楠 正暢; 大嶋重利; 向田昌志; アシナラヤナンスンダレサン; 田中康資; 荒木猛司; 平林 泉; 田辺圭一; ミヒャエルローレンツ; ホルガーホフムス
    春季応用物理学関係連合講演会  2003
  • Low microwave surface resistance at 90 K in Tl-1223 superconducting thin films fabricated on LSAT substrate  [Not invited]
    Sundaresan Athinarayanan; 浅田秀人; 鬼頭聖; 伊豫彰; 田中康資; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  2003
  • レーザーアブレーション法により作製したアパタイト薄膜の生体親和性評価  [Not invited]
    川島将実; 本津茂樹; 西川博昭; 楠正暢; 橋本典也; 大橋芳夫; 樋口裕一
    日本バイオマテリアル学会  2003
  • Preparation and Characterization of NdBa2Cu307-δ / Ba2NdTa06//MgO multilayer films  [Not invited]
    A.Noguchi; J.Kurian; T.Amemura; K.Tanabe; T.Morishita; N.Iwata; H.Yamamoto; M.Kusunoki; M.Mukaida; S.Ohshima
    The 8th IUMRS International Conference on Advanced Materials (IUMRS-ICAM2003), Japan  2003
  • Orientation control of HTS films  [Not invited]
    M. Mnkaida; Y.Yamazaki; Y.Shingai; T.Ohazama; S. Horii; A. Ichinose; Y. Yoshida; K. Matsumoto; M. Kusunoki; A. Saito; S. Ohshima
    The 8th IUMRS Intemational Conference on Advanced Materials (IUMRS-ICAM 2003), Japan  2003
  • Microwave performance of double sided T1 1223 films on LSAT substrate; A possible operation of device at 90K  [Not invited]
    A Sundaresan; Y. Tanaka; A. Iyo; M.Kusunoki; S. Ohshma
    6th European conference on Applied SupercQnductivity (EUCAS'03), Italy  2003
  • High-Tc Lnl23 films for microwave devices  [Not invited]
    M. Mnkaida; T. Ohazama; S. Horii; A. Ichinose; K. Matsumoto; Y; Yoshida M. Kusunoki; A. Saito; S. Ohshima
    The 11th Japan-US Workshop on High-Tc Su perconductors, Japan  2003
  • Error in surface resistance originated in dielectric loss of the parallel plate dielectric resonator using two modes resonators method  [Not invited]
    M. Kusunoki; H. Nishikawa; S. Hontsu
    International Symposium on Superconductivity (ISS'03)  2003
  • Buffer layers for TFA-MOD YBCO films on MgO substrate  [Not invited]
    M. Mukaida; M.Miura; T.Araki; Masanobu Kusunoki.A.Saito; S. Ohshima; I. Hirabayashi; K.Tanabe
    6th European conference on Applied Superconductivity (EUCAS'03), Italy  2003
  • OHSHIMA Shigetoshi; SHIRAKAWA Masanobu; KUSUNOKI Masanobu; MUKAIDA Masashi; YAMASAKI Horofumi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2002/10
  • MUKAIDA Masashi; YAMAZAKI Yuya; SHINGAI Yuki; UNNO Jun-ichi; KUSUNOKI Masanobu; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2002/10
  • MUKAIDA MASASHI; YAMAZAKI YUYA; SHINGAI YUKI; UNNO JUN'ICHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  2002/10
  • OSHIMA SHIGETOSHI; KUSUNOKI MASANOBU; INADOMARU MOMOKO; MUKAIDA MASASHI
    応用物理学会学術講演会講演予稿集  2002/09
  • MORIAI KATSUNARI; UJIIE KENGO; YAMADA HIRONOBU; AIZAWA KEIJI; KUSUNOKI MASAHIRO; MUKAIDA MASASHI; OSHIMA SHIGETOSHI; MARINARO D G; DOU S X
    応用物理学会学術講演会講演予稿集  2002/09
  • YAMAZAKI YUYA; SHINGAI YUKI; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2002/09
  • ASADA HIDETO; SUNDARESAN A; BADICA P; IYO AKIRA; TANAKA YASUTOMO; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2002/09
  • SHIRAKAWA MASANOBU; UNNO JUN'ICHI; AIZAWA KEIJI; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2002/09
  • SHIRAKAWA Masanobu; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2002/05
  • WATANABE Shinobu; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2002/05
  • KUSUNOKI Masanobu; INADOMARU Momoko; KOUSAKA Daisuke; OHSHIMA Shigetoshi; AIZAWA Keiji; MUKAIDA Masashi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2002/05
  • YAMADA Hironobu; MORIAI Katsunari; KANNO Shinsuke; AIZAWA Keiji; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2002/05
  • YAMAZAKI YUYA; SHINGAI YUKI; MAKINO SAYOKO; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  2002/05
  • SHIRAKAWA MASANOBU; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  2002/05
  • WATANABE SHINOBU; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  2002/05
  • OHSHIMA Shigetoshi; INADOMARU Momoko; KUSUNOKI Masanobu; MUKAIDA Masashi; YAMASAKI Hirofumi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2002/05
  • YAMAZAKI Y; SHINGAI Y; MAKINO S; MUKAIDA M; KUSUNOKI M; OHSHIMA S
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2002/05
  • YAMAZAKI YUYA; MAKINO SAYOKO; SHINGAI YUKI; INADOMARU MOMOKO; KOSAKA DAISUKE; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2002/03
  • INADOMARU MOMOKO; KUSUNOKI MASAHIRO; OSHIMA SHIGETOSHI; AIZAWA KEIJI; MUKAIDA MASASHI
    応用物理学関係連合講演会講演予稿集  2002/03
  • C面サファイア基板を用いたYBa2Cu3Oy薄膜の作製と評価  [Not invited]
    白川政信; 楠正暢; 向田昌志; 大嶋重利
    春季低温工学・超伝導学会  2002
  • 小面積超伝導薄膜の表面抵抗測定法に関する研究  [Not invited]
    楠正暢; 稲童丸桃子; 幸坂大介; 大嶋重利; 相澤慶二; 向田昌志
    春季低温工学・超伝導学会  2002
  • ビッタ法によるBi2212単結晶の磁束量子分布の角度依存性の観察  [Not invited]
    森合克成; 山田博信; 氏家健吾; 大嶋重利
    春季応用物理学関係連合講演会  2002
  • YBa2Cu3O7-δ薄膜とバッファ層間の格子整合性の効果  [Not invited]
    山嵜裕; 弥牧野さよこ; 新海優樹; 稲童丸桃子; 高坂大介; 向田昌志; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  2002
  • Relationship between the surface resistance and depairing current density of superconductors  [Not invited]
    Shigetoshi Ohshima; Masanobu Kusunoki; Momoko Inadomaru; Masashi Mukaida; Yasumoto Tanaka; Hideo Ihar
    Applied Superconductivity Conference (ASC'02)  2002
  • Preparation of Tl-2212 and Tl-1223 superconductor thin films and their microwave surface resistance  [Not invited]
    A. Sundaresan; H. Asada; A. Crisan; J. C. Nie; H. Kito; A. Iyo; Y. Tanaka; M. Kusunoki; S. Ohshima
    Applied Superconductivity Conference (ASC'02)  2002
  • Fabrication and characterization of a Ce02 buffer layer on c-plane and tilt-c-plane sapphire substrates  [Not invited]
    M. Shirakawa; J. Unno; K. Aizawa; M. Kusunoki; M Mukaida; S Ohshima
    International Symposium on Superconductivity (ISS'02)  2002
  • Effects of Buffer-Layer Lattice Matching on the Growth of YBCO Films  [Not invited]
    Masashi Mukaida; Yuya Yamazaki; Masanobu Kusunoki; Shigetoshi Ohshima; Sayoko Makino; Fujitsu AMD; Y. Shingai
    Applied Superconductivity Conference (ASC'02)  2002
  • Correlation between Vortex Distribution and Temperature in YBCO Films and YBCO-QMG Samples  [Not invited]
    Hironobu Yamada; Katsunari Moriai; Shinsuke Kanno; Keiji Aizawa; Masanobu Kusunoki; Masashi Mukaida; Shigetoshi Ohshima
    Applied Superconductivity Conference (ASC'02)  2002
  • YOSHIDA Y; SUDO K; MATSUO H; TAKAI Y; KUSUNOKI M; INADOMARU M; MUKAIDA M; OHSHIMA S
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2001/11
  • INADOMARU MOMOKO; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2001/09
  • KUSUNOKI MASANOBU; TAKANO YOSHINOBU; NAKAMURA KEN; INADOMARU MOMOKO; KOSAKA DAISUKE; NOZAKI ATSUSHI; UENO SATOSHI; ABE SHUICHI; YOKOO MASAYOSHI; LORENZ M; HOCHMUTH H; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2001/09
  • KOUSAKA D; SATOH A; SUZUKI T; OIKAWA S; NOGUCHI T; AIZAWA K; KUSUNOKI M; MUKAIDA M; OHSHIMA S
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2001/05
  • NAKAGAWA Tomohiro; SATO Kazuaki; KUSUNOKI Masanobu; OHSHIMA Shigetoshi; MUKAIDA Masashi; CASSINESE A; BARRA M; FRAGALA I; MALANDRINO G; PERDICARO L. M. S; VAGLIO R
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2001/05
  • OHSHIMA Shigetoshi; OIKAWA Shinichiro; NOGUCHI Takafumi; KUSUNOKI Masanobu; MUKAIDA Masashi; YAMASAKI Hirofumi; NAKAGAWA Yoshihiko
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2001/05
  • TAKEDA Makoto; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2001/05
  • MAKINO SAYOKO; CHIBA KAZUAKI; INADOMARU MOMOKO; KOSAKA DAISUKE; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2001/03
  • OIKAWA SHIN'ICHIRO; NOGUCHI TAKAFUMI; OSHIMA SHIGETOSHI; MUKAIDA MASASHI; KUSUNOKI MASANOBU
    応用物理学関係連合講演会講演予稿集  2001/03
  • KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2001/03
  • MORIAI KATSUSHIGE; KAWAI TAKASHI; KANNO SHINSUKE; SATO SHUHEI; YAMADA HIRONOBU; AIZAWA KEIJI; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI; SAKAMOTO SHUSAKU; OTA AKIO
    応用物理学関係連合講演会講演予稿集  2001/03
  • 冷凍機を用いた誘電体共振器法による酸化物高温超伝導薄膜の表面抵抗の完全自動測定  [Not invited]
    高坂大介; 楠正暢; 稲童丸桃子; 相澤慶二; 向田昌志; 大嶋重利
    応用物理学会東北支部大会  2001
  • 誘電体共振器法を用いたサファイア単結晶の損失の比較  [Not invited]
    稲童丸桃子; 楠正暢; 向田昌志; 大嶋重利
    応用物理学会東北支部大会  2001
  • マイクロ波デバイス用YBa2Cu3Oy薄膜の作製と評価  [Not invited]
    鈴木敏幸; 高野祥暢; 楠正暢; 稲童丸桃子; 高坂大介; 横尾政好; 向田昌志; 大嶋重利
    応用物理学会東北支部大会  2001
  • ビッタ法によるBi2212単結晶の磁束量子観察  [Not invited]
    森合克成; 山田博信; 氏家健吾; 相澤慶二; 楠正暢; 向田昌志; 大嶋重利
    応用物理学会東北支部大会  2001
  • 超伝導フィルタの設計パラメータの検討  [Not invited]
    三上宏; 相澤慶二; 楠正暢; 向田昌志; 大嶋重利
    応用物理学会東北支部大会  2001
  • セキュリティ用超伝導マイクロ波センサの設計･試作･評価  [Not invited]
    関谷尚人; 佐藤和明; 江畑克史; 大嶋重利
    応用物理学会東北支部大会  2001
  • 小型超伝導パッチアレイアンテナの評価  [Not invited]
    中川智博; 佐藤和明; A. Cassinese; 楠正暢; 大嶋重利; M. Barra; I. Fragala; G. Malandrino; L.M. S. Perdicaro; 向田昌志; R. Vaglio
    応用物理学会東北支部大会  2001
  • 高温超伝導マイクロ波デバイス作製のためのドライエッチングプロセスの検討  [Not invited]
    野口恭史; 安達学人; 丹野英樹; 楠正暢; 高坂大介; 稲童丸桃子; 横尾政好; 向田昌志; 大嶋重利
    応用物理学会東北支部大会  2001
  • 高温超伝導体の磁束量子分布の温度依存性及び磁界依存性  [Not invited]
    山田博信; 森合克成; 相澤慶二; 楠正暢; 向田昌志; 大嶋重利
    応用物理学会東北支部大会  2001
  • MgO基板上YBa2Cu3O7-d/BaSnO3多層薄膜の作製と評価  [Not invited]
    牧野さよこ; 稲童丸桃子; 楠正暢; 向田昌志; 大嶋重利; 中川愛彦; 山崎裕文
    応用物理学会東北支部大会  2001
  • 誘電体共振器法による表面抵抗精密測定の条件の検討  [Not invited]
    楠正暢; 向田昌志; 大嶋重利
    春季応用物理学関係連合講演会  2001
  • ビッター法によるBi系単結晶および線材の磁束量子観察-  [Not invited]
    森合克成; 河合崇; 菅野慎介; 佐藤周平; 山田博信; 相澤慶二; 楠正暢; 向田昌志; 大嶋重利; 坂元周作; 太田昭男
    春季応用物理学関係連合講演会  2001
  • YBCO薄膜に対するBaSnO3バッファー層の膜厚効果-  [Not invited]
    及川進一郎; 野口恭史大嶋重利; 向田昌志; 楠正暢
    春季応用物理学関係連合講演会  2001
  • MgO基板上YBa2Cu3O7-δ薄膜の110面内方位用バッファー層  [Not invited]
    牧野さよこ; 千葉和秋; 稲童丸桃子; 高坂大介; 向田昌志; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  2001
  • The correlation of critical current density and surface resistance of YBa2Cu3O7-d thin films  [Not invited]
    Shigetoshi OHSHIMA; Shinichiro Oikawa; Takafumi Noguchi; Momoko Inadomaru; Masanobu KUSUNOKI; Masashi MUKAIDA; Hirofumi Yamasaki; Yoshihiko Nakagawa
    European conference on Applied Superconductivity (EUCAS '01)  2001
  • Superconducting Dual-Mode Cross-Slotted patches for Telecommunication Applications  [Not invited]
    A.Cassinese; M. Kusunoki; K. Sato; S. Ohshima; R. Vaglio; B. Mario; F. Ignazio; M. Graziella; L.M.S. Perdicaro
    European conference on Applied Superconductivity (EUCAS '01)  2001
  • Scatter in loss tangent of single crystalline sapphire  [Not invited]
    M. Inadomaru; M. Kusunoki; K. Aizawa; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'01)  2001
  • Observation of Vortex Distribution in YBCO QMG Samples and YBCO Thin Films  [Not invited]
    Hironobu Yamada; Katunari Moriai; Shinsuke Kanno; Keiji Aizawa; Masanobu Kusunoki; Masashi Mukaida; Shigetoshi Ohshima
    International Symposium on Superconductivity (ISS'01)  2001
  • Measurement of surface resistance distribution of large area YBa2Cu3Oy thin films  [Not invited]
    M. Kusunoki; Y. Takano; K. Nakamura; M. Inadomaru; D. Kohsaka; A. Nozaki; S. Abe; M. Yokoo; M. Lorenz; H. Hochmuth; M. Mukaida; S. Ohshima
    International Superconductive Electronics Conference (ISEC '01)  2001
  • Loss Tangent of Sapphire Single Crystal Prepared by Edge-defined Film-fed Growth Method  [Not invited]
    M. Inadomaru; M. Kusunoki; M. Mukaida; S. Ohshima
    International Superconductive Electronics Conference (ISEC '01)  2001
  • Full Automatic Measurement of Surface Resistance with Dielectric Resonator Method using Cryocooler  [Not invited]
    D. Kosaka; M. Kusunoki; M. Inadomaru; K. Aizawa; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'01)  2001
  • Evaluation of Superconducting Dual-Mode Cross-Slotted Patch Array Antenna  [Not invited]
    T. Nakagawa; K.Sato; A. Cassinese; M. Kusunoki; S. Ohshima; B. Mario; F. Ignazio; M. Graziella; L.M.S. Perdicaro; M. Mukaida; R. Vaglio
    International Symposium on Superconductivity (ISS'01)  2001
  • Demonstration of Scanning Surface Resistance Measurement System for 3 inch YBa2Cu3Oy films  [Not invited]
    M. Kusunoki; Y. Takano; K. Nakamura; M. Inadomaru; D. Kosaka; A. Nozaki; S. Abe; M. Yokoo; M. Lorenz; H. Hochmuth; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'01)  2001
  • Control of grain size by initial growth stage of YBCO thin films  [Not invited]
    Masashi Mukaida; S. Sato; Yoshinobu Takano; Masanobu Kusunoki; Shigetoshi Ohshima
    International Symposium on Superconductivity (ISS'01)  2001
  • BaSnO3 buffer layers for YBCO films on MgO substrates  [Not invited]
    Masashi MUKAIDA; Kazuaki Chiba; Takafumi Noguchi; Daisuke Kohsaka; Masanobu KUSUNOKI; Shigetoshi OHSHIMA
    International Superconductive Electronics Conference (ISEC '01)  2001
  • BaSnO3 Buffer Layers Effect on the Surface Resistance of YBa2Cu3O7-δ Films  [Not invited]
    Shigetoshi OHSHIMA; Shinichiro Oikawa; Kazuaki Chiba; Masanobu KUSUNOKI; Masashi MUKAIDA
    International Superconductive Electronics Conference (ISEC '01)  2001
  • EHATA K; SATO K; KUSUNOKI M; MUKAIDA M; OHSHIMA S; SUZUKI Y; KANAO K
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2000/10
  • CHIBA KAZUAKI; MAKINO SAYOKO; KOSAKA DAISUKE; INADOMARU MOMOKO; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2000/09
  • MUKAIDA MASASHI; SUGIMOTO JUN'ICHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2000/09
  • SUZUKI TOSHIYUKI; GOTO RIKIHARU; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2000/09
  • MAKINO SAYOKO; CHIBA KAZUAKI; INADOMARU MOMOKO; KOSAKA DAISUKE; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2000/09
  • INADOMARU MOMOKO; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  2000/09
  • KINPARA Tomoyuki; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2000/05
  • KOUSAKA Daisuke; INADOUMARU Momoko; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2000/05
  • OKAI Daisuke; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi; KISHIDA Satoru
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2000/05
  • TAKANO Y; SATO S; SUZUKI T; KUSUNOKI M; M. Masashi; OHSHIMA S; YOKOO M
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2000/05
  • KANNO Shinsuke; KAWAI Takashi; SATOU Syuhei; AIZAWA Keiji; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSIMA Shigetoshi; HAYASHI Nariyuki; NISHIZAKI Terukazu; KOBAYASHI Norio
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  2000/05
  • CHIBA KAZUAKI; MAKINO SAYOKO; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2000/03
  • SATO SHUHEI; CHIBA KAZUAKI; INADOMARU MOMOKO; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI; TAKANO YOSHINOBU
    応用物理学関係連合講演会講演予稿集  2000/03
  • MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  2000/03
  • Okai D; Inadomaru M; Satou S; Kusunoki M; Mukaida M; Ohshima S
    Proceedings of the IEICE General Conference  2000/03
  • Okai D; Inadomaru M; Satou S; Kusunoki M; Mukaida M; Ohshima S
    Proceedings of the IEICE General Conference  2000/03
  • 低表面抵抗YBCO薄膜の作製とそれを用いたパッシブマイクロ波デバイスの試作  [Not invited]
    大嶋重利; 江畑克史; モファムドアリ; 高野祥暢; 千葉和秋; 鈴木敏幸; 向田昌志
    電子情報通信学会超伝導エレクトロニクス研究会  2000
  • 大面積超伝導薄膜の表面抵抗の測定  [Not invited]
    楠正暢; 向田昌志; 大嶋重利; ミヒャエル・ローレンツ; ホルガー・ホフムス; ディーター; ノートゥッシュ; トーマス・ターリンゲン
    電子情報通信学会超伝導エレクトロニクス研究会  2000
  • 楕円関数型超伝導フィルタの設計と評価  [Not invited]
    金原智之; 楠正暢; 向田昌志; 大嶋重利
    電子情報通信学会超伝導エレクトロニクス研究会  2000
  • 酸化物超伝導体超格子薄膜と表面抵抗の相関  [Not invited]
    牧野さよこ; 千葉和秋; 稲童丸桃子; 高坂大介; 向田昌志; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  2000
  • YBa2Cu3O7-δ薄膜の表面抵抗と結晶粒径・面内配向の関係  [Not invited]
    佐藤周平; 千葉和秋; 稲童丸桃子; 楠正暢; 向田昌志; 大嶋重利; 高野祥暢
    春季応用物理学関係連合講演会  2000
  • a-軸配向YBa2Cu3O7-δ薄膜成長におけるLn2CuO4バッファ層の比較  [Not invited]
    向田昌志; 杉本淳一; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  2000
  • ビッター法によるBi2212単結晶とBi2223線材の磁束量子観察  [Not invited]
    河合崇; 菅野慎介; 森合克成; 相澤慶二; 楠正暢; 向田昌志; 大嶋重利; 坂元周作; 太田昭男
    秋季低温工学・超伝導学会  2000
  • 誘導結合プラズマスパッタリング法によるＣ面Al2O3基板上YBCO薄膜の作製と評価  [Not invited]
    鈴木敏幸; 佐藤史郎; 稲童丸桃子; 楠正暢; 向田昌志; 大嶋重利
    秋季応用物理学会学術講演会  2000
  • α−軸配向YBa2Cu3O7-δ薄膜成長におけるLn2CuO4バッファ層の比較  [Not invited]
    向田昌志; 杉本淳一; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  2000
  • ＭｇＯ基板上YBa2Cu3O7-δ薄膜用バッファ材料の比較  [Not invited]
    千葉和秋; 牧野さよ子; 高坂大介; 稲童丸桃子; 向田昌志; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  2000
  • 超伝導材料における科学-YBa2Cu3O7-δ薄膜の結晶軸制御成長機構  [Not invited]
    向田昌志; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  2000
  • YBa2Cu3O７_δ薄膜の表面抵抗と結晶粒径・面内配向の相関  [Not invited]
    佐藤周平; 千葉和秋; 稲童丸桃子; 楠正暢; 向田昌志; 大嶋重利; 高野祥暢
    春季応用物理学関係連合講演会  2000
  • MgO上_YBa2Cu3O７_δ薄膜用新バッファ材料の提案  [Not invited]
    千葉和秋; 牧野さよ子; 向田昌志; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  2000
  • The Phenomenalistic Examination of Temperature Dependence of a Surface Resistance of YBCO films  [Not invited]
    M. Inadomaru; D. Kousaka; T. Suzuki; M. Kusunoki; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'00)  2000
  • The Effect of Lattice Matching betwen Buffer Layer and YBa2Cu3O7-d Thin Film on In-plane Alignment of C-axis Oriented Thin Films  [Not invited]
    K.Chiba; S. Makino; M. Mukaida; M. Kusunoki; S. Ohshima
    Applied Superconductivity Conference (ASC'00)  2000
  • Relationship between the surface resistance and crystal orientation of YBa2Cu3O7-d thin film  [Not invited]
    S. Ohshima; M. Kusunoki; M. Mukaida; T. Suzuki; K. Chiba; M.Inadomaru; Y. Takano
    Applied Superconductivity Conference (ASC'00)  2000
  • Precise surface resistance measurement of YBa2Cu3Oy films with the dielectric resonator method  [Not invited]
    H. Obara; S. Kosaka; A. Sawa; H. Yamasaki; Y. Kobayashi; T. Hashimoto; S. Ohshima; M. Kusunoki; M. Inadomaru
    International Symposium on Superconductivity (ISS'00)  2000
  • Observation of vortices in the high-temperature superconductor  [Not invited]
    S. Kanno; T. Kawai; K. Aizawa; M. Kusunoki; M. Mukaida; S. Ohshima; S. Hayashi; T. Nishizaki; N. Kobayashi
    International Symposium on Superconductivity (ISS'00)  2000
  • New Surface Resistance Measurement Technique of High-Temperature Superconductors Usin a Probe Coupling Microstrip Line Resonator  [Not invited]
    D. Okai; M. Kusunoki; M. Mukaida; S. Ohshima
    Applied Superconductivity Conference (ASC'00)  2000
  • Miniaturized Cooling System for HTS Antenna  [Not invited]
    K. Ehata; K.Sato; M. Kusunoki; M. Mukaida; S. Ohshima; Y. Suzuki; K. Kanao
    Applied Superconductivity Conference (ASC'00)  2000
  • Ln dependence in Ln2CuO4buffer layers of c-axis on-plane aligned a-axis oriented YBa2Cu3O7-d thin film growth  [Not invited]
    M. Mukaida; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'00)  2000
  • High-quality Y-Ba-Cu-O Thin Films by PLD-Ready for Market Applications  [Not invited]
    M. Lorenz; H. Hochmuth; D. Natusch; M. Kusunoki; V. L.. Svetchnikov; V. Riede; I. Stanca; G. Kastner; D. Hesse
    Applied Superconductivity Conference (ASC'00)  2000
  • Design of Cross-coupled Microstrip Bandpass Filter  [Not invited]
    T. Kinpara; M. Kusunoki; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'00)  2000
  • Buffer layer technology for crystalline axis control of YBa2Cu3O7-d thin films  [Not invited]
    M. Mukaida; J. Sugimoto; K. Chiba; M. Kusunoki; S. Ohshima
    Applied Superconductivity Conference (ASC'00)  2000
  • SUZUKI T; SATO S; INADOMARU M; KUSUNOKI M; MUKAIDA M; OHSHIMA S
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/11
  • OIKAWA Sinnichirou; MUKAIDA Masashi; KUSUNOKI Masanobu; OOSHIMA Shigetosi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/11
  • INADOMARU Momoko; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/11
  • EHATA K; SATO K; KUSUNOKI M; MUKAIDA M; SUZUKI Y; KANAO K
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/11
  • MAKINO S; CHIBA K; SUGIMOTO J; MUKAIDA M; KUSUNOKI M; OHSHIMA S
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/11
  • KAWAI Takashi; KANNO Shinsuke; SATOU Syuuhei; AIZAWA Keiji; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/11
  • MUKAIDA Masashi; SUGIMOTO Jun-ichi; KUSUNOKI Masanobu; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/11
  • CHIBA Kazuaki; MAKINO Sayoko; KOUSAKA Daisuke; MUKAIDA Masashi; KUSUNOKI Masanobu; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/11
  • KANNO Shinsuke; KAWAI Takashi; SATOU Syuhei; AIZAWA Keiji; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSIMA Shigetoshi; HAYASHI Nariyuki; NISHIZAKI Terukazu; KOBAYASHI Norio
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/11
  • CHIBA KAZUAKI; KOSAKA DAISUKE; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  1999/09
  • SUZUKI TOSHIYUKI; SATO SHIRO; INADOMARU MOMOKO; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  1999/09
  • Okai D; Kusunoki M; Mukaida M; Ohshima S
    Proceedings of the Society Conference of IEICE  1999/08
  • OKAI DAISUKE; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  1999/08
  • M. Kusunoki; Y. Takano; M. Mukaida; S. Ohshima
    PHYSICAC  1999/08 
    The effect of in-plane 0-45° grain boundaries on surface resistance (Rs) of c-axis YBa2Cu3Oy (YBCO) films on MgO substrates is discussed. Samples that have various densities of 45° rotated grains were prepared using a self-template technique. The Rs values at 22 GHz were measured by the dielectric resonator method using a cryocooler. The Rs systematically changed corresponding to the amount of 0-45° grain boundaries. Conspicuous feature of the films including 0-45° grain boundaries is a large residual surface resistance. The Rs of almost perfectly in-plane aligned YBCO film scaled to 10 GHz were 0.12 mΩ at 20 K and 0.67 mΩ at 77 K on the assumption of tan δ = 0, respectively.
  • SUZUKI Yuichiro; KANAO Ken-ichi; EHATA Katsuhumi; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/06
  • KAWAI Takashi; KANNO Sinsuke; SATOU Syuuhei; AIZAWA Keiji; KUSUNOKI Masaaki; MUKAIDA Masashi; OHSIMA Shigeaki
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1999/06
  • TAKANO YOSHINOBU; CHIBA KAZUAKI; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  1999/03
  • OIKAWA SHIN'ICHIRO; TAKANO YOSHINOBU; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  1999/03
  • CHIBA KAZUAKI; TAKANO YOSHINOBU; MUKAIDA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  1999/03
  • KIMPARA TOMOYUKI; TOMIYAMA TAKAFUMI; SATO TETSUYA; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  1999/03
  • Kinpara Tomoyuki; Tomiyama Takafumi; Sato Tetsuya; Kusunoki Masanobu; Mukaida Masashi; Ohshima Shigetoshi
    Proceedings of the IEICE General Conference  1999/03
  • Okai D; Kusunoki M; Mukaida M; Ohshima S
    Proceedings of the IEICE General Conference  1999/03
  • Ehata K; Kusunoki M; Mukaida M; Ohshima S
    Proceedings of the IEICE General Conference  1999/03
  • OKAI DAISUKE; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  1999/03
  • EHATA KATSUSHI; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  1999/03
  • ヘアピン共振器を用いた狭帯域フィルタの設計  [Not invited]
    金原 智之; 冨山 岳郁; 佐藤 徹也; 楠 正暢; 向田 昌志; 大嶋 重利
    電子情報通信学会総合大会  1999/03
  • レーザー蒸着法による超伝導薄膜の作製と評価  [Not invited]
    日本学術振興会第146委員会第4回「マイクロ波_光」分科会  1999
  • 誘導結合プラズマスパッタリング法で作製したYBa2Cu3Oy薄膜のマイクロ波特性の評価  [Not invited]
    鈴木敏幸; 楠正暢; 向田昌志; 大嶋重利
    電子情報通信学会超伝導エレクトロニクス研究会  1999
  • YBCO薄膜のCeO2バッファ層に対する制膜レートの効果  [Not invited]
    カテリンデベロス; 楠正暢; 向田昌志; 大嶋重利
    春季応用物理学関係連合講演会  1999
  • YBa2Cu3Ox/BaSnO3/MgO薄膜の面内配向性評価  [Not invited]
    千葉和秋; 高野祥暢; 向田昌志; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  1999
  • c軸配向YBa2Cu3Oy薄膜における45゜面内配向結晶粒の表面抵抗に与える影響  [Not invited]
    楠正暢; 高野祥暢; 向田昌志; 大嶋重利
    電子情報通信学会超伝導エレクトロニクス研究会  1999
  • 誘導結合プラズマスパッタリング法によるマイクロ波デバイス用薄膜の作製と評価  [Not invited]
    鈴木敏幸; 佐藤史郎; 稲童丸桃子; 楠正暢; 向田昌志; 大嶋重利
    秋季低温工学・超伝導学会  1999
  • 誘導結合プラズマスパッタリング法により作製したYBa2Cu3Oｙ薄膜のマイクロ波特性の評価  [Not invited]
    鈴木敏幸; 佐藤史郎; 稲童丸桃子; 楠正暢; 向田昌志; 大嶋重利
    秋季応用物理学会学術講演会  1999
  • マイクロストリップ線路共振器を用いた表面抵抗の測定  [Not invited]
    岡井大祐; 楠正暢; 向田昌志; 大嶋重利
    電子情報通信学会超伝導エレクトロニクス研究会  1999
  • YBa2Cu3O7-δ薄膜の面内配向制御におけるBaSnO3バッファ層の臨界膜厚  [Not invited]
    千葉和秋; 高坂大介; 向田昌志; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  1999
  • YBCO薄膜のCeO2バッファ層に対する製膜レートの効果  [Not invited]
    カテリン・デベロス; 楠正暢; 向田昌志; 大嶋重利
    春季応用物理学関係連合講演会  1999
  • YBa2Cu3Oｙエピタキシャル薄膜の基板格子整合性の効果  [Not invited]
    高野祥暢; 千葉和秋; 向田昌志; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  1999
  • YBa2Cu3Ox薄膜成長に及ぼすガス圧の影響  [Not invited]
    及川進一郎; 高野祥暢; 向田昌志; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  1999
  • BaSnO3/MgOを用いたYBaCu3Ox薄膜の面内配向制御  [Not invited]
    千葉和秋; 高野祥暢; 向田昌志; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  1999
  • ヘアピン共振器を用いた狭帯域フィルタの設計  [Not invited]
    金原智之; 冨山岳郁; 佐藤徹也; 楠正暢; 向田昌志; 大嶋重利
    電子情報通信学会総合大会  1999
  • プローブ結合型マイクロストリップ線路共振器法による表面抵抗の測定  [Not invited]
    岡井大祐; 楠正暢; 向田昌志; 大嶋重利
    電子情報通信学会総合大会  1999
  • SINGLE-FED SUPERCONDUCTING CIRCULARLY POLAIZAED PATCH ARRAY ANTENNA AT 12GHz FOR DBS SYSTEM  [Not invited]
    M.I.Ali; K.EHATA M.KUSUNOKI; S.OHSHIMA
    電子情報通信学会総合大会  1999
  • Optimum Configuration of the Antenna to the Dielectric Resonator to Measure the Accurate Surface of the HTS Films’’  [Not invited]
    M.Inadomaru; D. Kousaka; M. Kusunoki; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'99)  1999
  • New Measurement Technique of the Suface Impedance of Superconductors Using the Probe-Coupling Type Micostripline Resonator’’  [Not invited]
    D. Okai; M. Kusunoki; M. Mukaida; S. Ohshima
    ASIA PACIFIC MICROWAVE CONFERENCE (APMC'99)  1999
  • MICROWAVE SURFACE RESISTANCE OF YBa2Cu3Oy THIN FILMS PREPARED BY INDUCTIVE COUPLED PLASMA SPUTTERING’’  [Not invited]
    T. Suzuki; S. Sato; M. Kusunoki; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'99)  1999
  • High temperature resistance of YBa2Cu3O7-δ films under various oxygen pressures  [Not invited]
    M. Mukaida; Shinichiro Oikawa; M. Kusunoki; S. Ohshima
    International Superconductive Electronics Conference (ISEC '99)  1999
  • FABRICATION OF DOUBLE-SIDED YBa2Cu3O7-δ/BaSnO3 THINFILMS BY LASER ABLATION  [Not invited]
    K.Chiba; D. Kousaka; M. Mukaida; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'99)  1999
  • Effects of cation mixing on the growth of a-axis oriented NdBa2Cu3O7-δthin films’’  [Not invited]
    M. Mukaida; J. Sugimoto; S. Sato; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'99)  1999
  • Effect of Cavity’s Loss on the Measurement Accuracy of the Surface Resistance by Microstripline Resonatot Method’  [Not invited]
    D. Okai; M. Kusunoki; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'99)  1999
  • Development of A Miniaturized Cooling System for HTS Antennas’’  [Not invited]
    K. Ehata; M; I. Ali; K.Sato; M. Kusunoki; M. Mukaida; S. Ohshima; Y. Suzuki; K. Kanno
    International Symposium on Superconductivity (ISS'99)  1999
  • Design and Fabrication of Narrow-band Compact Configuration Hairpin Filters’’  [Not invited]
    S. Ohshima; T. Tomiyama; T. Kinpara; M. Kusunoki; M. Mukaida
    International Superconductive Electronics Conference (ISEC '99)  1999
  • A new epitaxial BaSnO3 Buffer layer for YBaCu3O7-δthin films on MgO substrates  [Not invited]
    M. Mukaida; Y. Takano; K.Chiba; Takurou Moriya; M. Kusunoki; S. Ohshima
    International Superconductive Electronics Conference (ISEC '99)  1999
  • CHIBA KAZUAKI; TAKANO YOSHINOBU; MUKODA MASASHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会東北支部学術講演会講演予稿集  1998/12
  • SUDO TOSHIHIDE; TAKANO YOSHINOBU; KUSUNOKI MASANOBU; MUKODA MASASHI; OSHIMA SHIGETOSHI
    応用物理学会東北支部学術講演会講演予稿集  1998/12
  • TAKANO YOSHINOBU; SUDO TOSHIHIDE; KUSUNOKI MASANOBU; MUKODA MASASHI; OSHIMA SHIGETOSHI
    応用物理学会東北支部学術講演会講演予稿集  1998/12
  • Okai D; Tomiyama T; Kusunoki M; Mukaida M; Ohshima S
    Proceedings of the Society Conference of IEICE  1998/09
  • EHATA KATSUFUMI; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  1998/09
  • Tomiyama Takafumi; Kusunoki Masanobu; Mukaida Masashi; Ohshima Shigetoshi
    Proceedings of the Society Conference of IEICE  1998/09
  • SUDO TOSHIHIDE; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  1998/09
  • MUKAIDA MASASHI; TAKANO YOSHINOBU; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  1998/09
  • TAKANO YOSHINOBU; KUSUNOKI MASANOBU; MUKAIDA MASASHI; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  1998/09
  • TAKANO Yoshinobu; KUSUNOKI Masanobu; MUKAIDA Masashi; OHSHIMA Shigetoshi
    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity  1998/05
  • Ehata Katsufumi; Kusunoki Masanobu; Ohshima Shigetoshi; Helmut Kinder
    Proceedings of the IEICE General Conference  1998/03
  • Okai Daisuke; Tomiyama Takafumi; Shinkai Yoko; Kusunoki Masanobu; Ohshima Shigetoshi
    Proceedings of the IEICE General Conference  1998/03
  • SUDO TOSHIHIDE; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  1998/03
  • マイクロ波デバイス用高温超伝導薄膜の作製と評価  [Not invited]
    山形大学超伝導デバイス研究会-高温超伝導の基礎から応用まで-  1998
  • マイクロストリップ共振器法による誘電体基板の誘電率、tanδの測定(共著)  [Not invited]
    第1回東北大学電気通信研究所共同プロジェクト研究 研究会  1998
  • 誘導結合プラズマスパッタリング法によるYBa2Cu3O7-δ薄膜の作製と評価  [Not invited]
    鈴木敏幸; 須藤俊英; 森谷拓朗; 楠正暢; 向田昌志; 大嶋重利
    東北大学電気通信研究所共同プロジェクト研究会  1998
  • 低誘電率MgO基板上におけるマイクロデバイス用YBa2Cu3Ox薄膜の成長と評価  [Not invited]
    向田昌志; 高野祥暢; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  1998
  • 超伝導フィルタの設計・試作・評価  [Not invited]
    佐藤徹也; 冨山岳郁; 楠正暢; 向田昌志; 大嶋重利
    東北大学電気通信研究所共同プロジェクト研究会  1998
  • マイクロ波デバイス用薄膜の面内配向性に与える格子整合の効果  [Not invited]
    高野祥暢; 楠正暢; 向田昌志; 大嶋重利
    秋季応用物理学会学術講演会  1998
  • クロスカップル型超伝導フィルタの設計  [Not invited]
    冨山岳郁; 楠正暢; 向田昌志; 大嶋重利
    日独フィルタシンポジウム  1998
  • YBCO薄膜の結晶成長に与える格子整合の効果  [Not invited]
    高野祥暢; 須藤俊英; 楠正暢; 向田昌志; 大嶋重利
    応用物理学会東北支部大会  1998
  • CeO2バッファ層の膜圧がYBCOの表面抵抗に与える影響  [Not invited]
    須藤俊英; 高野祥暢; 楠正暢; 向田昌志; 大嶋重利
    応用物理学会東北支部大会  1998
  • BaSnO3バッファ層によるMgO上YBa2Cu3Ox薄膜の結晶配向制御  [Not invited]
    千葉和秋; 高野祥暢; 向田昌志; 楠正暢; 大嶋重利
    応用物理学会東北支部大会  1998
  • 線路共振器法による表面抵抗の測定に関する一検討  [Not invited]
    岡井大祐; 冨山岳郁; 楠正暢; 向田昌志; 大嶋重利
    電子情報通信学会超伝導エレクトロニクス研究会  1998
  • ホモエピタキシャル法を用いたYBa2Cu3Ov薄膜のグレイン成長  [Not invited]
    高野祥暢; 楠正暢; 向田昌志; 大嶋重利
    春季低温工学・超伝導学会  1998
  • YBCO/CeO2/Al2O3ヘテロエピタキシャル成長におけるバッファ層の機能  [Not invited]
    須藤俊英; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  1998
  • PLA法を用いたCeO2薄膜の成長におけるレーザーエネルギーとパルス間隔の効果  [Not invited]
    カテリン・デベロス; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  1998
  • 超伝導薄膜を用いたパッチアンテナの試作・評価  [Not invited]
    江畑克史; 楠正暢; 大嶋重利; H.Kinder
    電子情報通信学会総合大会  1998
  • 低誘導率ＭｇＯ基板上におけるマイクロ波デバイス用YBa2Cu3Ox薄膜の成長と評価  [Not invited]
    向田昌志; 高野祥暢; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  1998
  • YBCO/CeO2/Al2O3構造のマイクロ波特性  [Not invited]
    須藤俊英; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  1998
  • YBa2Cu3O7-x 角膜の超伝導特性に対するCeO2バッファ層の微細構造の効果  [Not invited]
    カテリン・デベロス; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  1998
  • Observation of Vortex Movement in Oxide Superconductors by Means of the Bitter Pattern Technique  [Not invited]
    S. Ohshima; Akira Kamimura; M. Kusunoki
    Applied Superconductivity Conference (ASC'98)  1998
  • New Measurement Technique of the Surface Resistance Rs using the Microstrip Resonator  [Not invited]
    D. Okai; T. Tomiyama; M. Kusunoki; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'98)  1998
  • Microwave Surface Resistance of YBCO Thin Films on Cerium Oxide Buffer  [Not invited]
    M. Kusunoki; T. Sudo; D. Okai; M. Mukaida; S. Ohshima
    Applied Superconductivity Conference (ASC'98)  1998
  • Influence of the Microstructure of a CeO2 Buffer Layer on the Superconducting Properties of YBa2Cu3Oy on Al2O3  [Not invited]
    K. D. Develos; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'98)  1998
  • Growth Manner of c-axis Oriented YBa2Cu3Oy Thin Films  [Not invited]
    M. Mukaida; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'98)  1998
  • Examination on Power Handling Capability of Superconducting Patch Antenna  [Not invited]
    K. Ehata; Mohammad. I. Ali; M. Kusunoki; S. Ohshima
    Applied Superconductivity Conference (ASC'98)  1998
  • Elimination of 45 degree Grain Boundaries in LnBa2Cu30y Thin Films for Microwave Devices on MgO Substrates  [Not invited]
    M. Mukaida; Y. Takano; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'98)  1998
  • Effect of Substrate Lattice Mismatch on the Crystallographic properties of YBa2Cu3Oy Thin Films for Microwave Devices  [Not invited]
    Y. Takano; M. Mukaida; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'98)  1998
  • Design and Fabrication of Cross-coupled Microstrip Bandpath Filters  [Not invited]
    T. Tomiyama; M. Kusunoki; M. Mukaida; S. Ohshima
    International Symposium on Superconductivity (ISS'98)  1998
  • TAKAHISA AYUMI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会東北支部学術講演会講演予稿集  1997/12
  • SUDO TOSHIHIDE; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI; MASUMOTO HIROSHI; HIRAI TOSHIO
    応用物理学会東北支部学術講演会講演予稿集  1997/12
  • MATSUHASHI JUN; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会東北支部学術講演会講演予稿集  1997/12
  • TAKANO YOSHINOBU; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会東北支部学術講演会講演予稿集  1997/12
  • KUSUNOKI MASANOBU; TAKAKU AYUMI; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  1997/10
  • OKAI DAISUKE; SHINKAI YOKO; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会学術講演会講演予稿集  1997/10
  • KUSUNOKI MASANOBU; EHATA KATSUFUMI; TAKANO YOSHINOBU; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  1997/09
  • TOMIYAMA TAKAFUMI; OKAI DAISUKE; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  1997/09
  • EHATA KATSUFUMI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    電子情報通信学会大会講演論文集  1997/09
  • Ehata Katsufumi; Kusunoki Masanobu; Ohshima Shigetoshi
    Proceedings of the Society Conference of IEICE  1997/08 
    超伝導体は常伝導金属に比べてマイクロ波領域において2ケタほど小さな表面抵抗を持つことから、超伝導を用いた高効率あるいは小型なアンテナやフィルタ、伝送線路等のマイクロ波、ミリ波デバイスの実現が期待されている。特に、今回報告するパッチアンテナにおいては、多素子化されたアレーアンテナにおいて問題となる給電線の損失を大幅に低減できるため、従来のアンテナに比べて高利得のアレーアンテナが作製できることが予想される。
  • Kusunoki Masanobu; Ehta Katsufumi; Takano Yoshinobu; Ohshima Shigetoshi
    Proceedings of the Society Conference of IEICE  1997/08 
    酸化物高温超伝導材料のマイクロ波応用の発展に伴い、薄膜の大面積化が求められている。我々は、大口径かつ均一な高密度プラズマを発生させることができる誘導コイル結合型スパッタリンダ法を大面積薄膜作製法として有望視しており、これを用いてYBa_2Cu_3O_y薄膜作製条件の検討を行っている。現在までに、ある条件下ではφ50mmの基板面内での膜厚分布が5%以下であること、また誘導コイル投入電力によりTc及び結晶の配向制御が可能であることを示した。しかし、誘導コイル投入電力、カソード電圧、カソード電流はそのうち2者を決定すると残りの1者が自ずから定まるという関係にあるため、同時に2つの成膜パラメータを変化させることとなり、各々がどの様に膜質を支配しているかが明確ではなかった。今回、膜質と上記パラメータの関係について調べ、中でもTcの決定にはカソード電圧が重要であることが明らかとなったので報告する。
  • Tomiyama Takafumi; Okai Daisuke; Kusunoki Masanobu; Ohshima Shigetoshi
    Proceedings of the Society Conference of IEICE  1997/08 
    超伝導フィルタは、高周波領域における表面抵抗が常伝導体のそれに比べ1桁以上低いため、低挿入損失、シャープカット特性等の優れた特性を有し、移動体通信の基地局用フィルタとして注目されている。現在検討されている超伝導フィルタは、分布定数型では、例えばヘアピン形、櫛形、平行結合形、コプレーナフィルタ等が多いが、高効率化のためには同じ性能でも面積の小さいフィルタを作製する方が有利である。我々は、ヘアピン、櫛形、平行結合形フィルタの形状の最適化とサイズの小型化を検討している。
  • EBATA KATSUFUMI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  1997/05
  • KUSUNOKI MASANOBU; EBATA KATSUSHI; OKAI DAISUKE; OSHIMA SHIGETOSHI
    低温工学・超電導学会講演概要集  1997/05
  • KUSUNOKI MASANOBU; OSUKA AKIRA; EHATA KATSUSHI; OKAI DAISUKE; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  1997/03
  • EHATA KATSUSHI; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学関係連合講演会講演予稿集  1997/03
  • 超伝導パッチアンテナの設計・試作・評価  [Not invited]
    江畑克史; 楠正暢; 大嶋重利
    春季低温工学・超伝導学会  1997
  • 超伝導パッチアンテナの試作と評価  [Not invited]
    江畑克史; 楠正暢; 大嶋重利
    春季応用物理学関係連合講演会  1997
  • ヘリコンプラズマ源を用いたYBa2Cu3Oy薄膜の作製  [Not invited]
    楠正暢; 大須賀彰; 江畑克史; 岡井大祐; 大嶋重利
    春季応用物理学関係連合講演会  1997
  • Design and fabrication of Cu and YBCO patch array antenna  [Not invited]
    M.I.Ali; K.Ehata; M.Kusunoki; S.Ohshima
    春季応用物理学関係連合講演会  1997
  • PLA法を用いたCeO2薄膜の作製及びその配向と表面の評価  [Not invited]
    カテリン・デベロス; 楠正暢; 大嶋重利
    秋季応用物理学会学術講演会  1997
  • Variations of order parameter and bias current distribution with time in thin film superconducting lines  [Not invited]
    H. Andoh; M. Kito; M. Kusunoki; A. Fujimaki; H. Hayakawa
    International Superconductive Electronics Conference (ISEC '97)  1997
  • The Gain and Directivity of a Superconducting Patch Antenna  [Not invited]
    S. Ohshima; K. Ehata; M. Kusunoki
    International Superconductive Electronics Conference (ISEC '97)  1997
  • Study on Optimum Configuration on Microstrip Bandpass Filters  [Not invited]
    T. Tomiyama; D. Okai; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'97)  1997
  • High-Temperature Superconducting Microwave Applications, Antenna and Filter  [Not invited]
    S. Ohshima; K. Ehata; T. Ogasawara; M. Kusunoki
    International Workshop on HTS Electron Devices (HTSED '97)  1997
  • Examination of the Microstripline Resonator for Measurement of the Magnetic Penetration Depth  [Not invited]
    D. Okai; Takasi TACHIKI; Yoko SHINKAI; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'97)  1997
  • Characterization of Superconducting Patch Antenna Fabricated by Both-Side Superconducting Thin Film  [Not invited]
    K. Ehata; M. Kusunoki; S. Ohshima; H. KINDER
    International Symposium on Superconductivity (ISS'97)  1997
  • OSUGA AKIRA; KUSUNOKI MASANOBU; OSHIMA SHIGETOSHI
    応用物理学会東北支部学術講演会講演予稿集  1996/12
  • OSHIMA SHIGETOSHI; OGASAWARA TAKASHI; KUSUNOKI MASANOBU
    低温工学・超電導学会講演概要集  1996/11
  • OSHIMA SHIGETOSHI; EBATA KATSUFUMI; OGASAWARA TAKASHI; KUSUNOKI MASANOBU
    低温工学・超電導学会講演概要集  1996/11
  • FUJIMAKI AKIRA; KUSUNOKI MASANOBU; KITO MASARU; YOSHIDA SHUJI; ANDO HIROYA; HAYAKAWA HISAO
    応用物理学関係連合講演会講演予稿集  1996/03
  • YOSHIDA SHUJI; KUSUNOKI MASANOBU; KITO MASARU; ANDO HIROYA; FUJIMAKI AKIRA; HAYAKAWA HISAO
    応用物理学関係連合講演会講演予稿集  1996/03
  • New vortex flow transistors made of YBa2Cu3Oy thin films  [Not invited]
    A. Fujimaki; M. Kusunoki; M. Kito; S. Yoshida; H. Andoh; H. Hayakawa
    Applied Superconductivity Conference (ASC'96)  1996
  • Josephson Vortex Flow Transistor with Small Dimensions  [Not invited]
    A.Fujimaki; S.Yoshida; M.Kito; M. Kusunoki; H.Hayakawa
    International Workshop on Superconductivity  1996
  • Design and Fabrication of Metal and Superconducting Meander-Line Antennas  [Not invited]
    T.Ogasawara; K.Ehata; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'96)  1996
  • Design and Characterization of Superconducting Patch Antenna  [Not invited]
    K. Ehata; Takashi Ogasawara; M. Kusunoki; S. Ohshima
    International Symposium on Superconductivity (ISS'96)  1996
  • KUSUNOKI MASANOBU; KITO MASARU; YOSHIDA SOJI; ANDO HIROYA; FUJIMAKI AKIRA; HAYAKAWA HISAO
    応用物理学会学術講演会講演予稿集  1995/08
  • KITO MASARU; KUSUNOKI MASANOBU; YOSHIDA SOJI; ANDO HIROYA; FUJIMAKI AKIRA; HAYAKAWA HISAO
    応用物理学会学術講演会講演予稿集  1995/08
  • ANDO HIROYA; KITO MASARU; KUSUNOKI MASANOBU; FUJIMAKI AKIRA; HAYAKAWA HISAO
    応用物理学関係連合講演会講演予稿集  1995/03
  • 制御電流変化がSFFT弱結合部内部の磁束量子に及ぼす影響  [Not invited]
    安藤浩哉; 楠正暢; 藤巻朗; 早川尚夫
    春季応用物理学関係連合講演会  1995
  • Superconducting Transistors Composed of Nanobridges  [Not invited]
    International Workshop on Novel Terahertz Technology  1995
  • 鬼頭傑; 楠正暢; 安藤浩哉; 藤巻朗; 早川尚夫
    電気関係学会東海支部連合大会講演論文集  1994/10
  • FUJIMAKI AKIRA; KUSUNOKI MASANOBU; ANDO HIROYA; KITO MASARU; HAYAKAWA HISAO
    応用物理学会学術講演会講演予稿集  1994/09
  • KUSUNOKI MASANOBU; ANDO HIROYA; FUJIMAKI AKIRA; HAYAKAWA HISAO
    応用物理学会学術講演会講演予稿集  1994/09
  • ANDO HIROYA; KUSUNOKI MASANOBU; FUJIMAKI AKIRA; HAYAKAWA HISAO
    応用物理学会学術講演会講演予稿集  1994/09
  • KUSUNOKI MASANOBU; AKAIKE HIROYUKI; FUJIMAKI AKIRA; TAKAI YOSHIAKI; HAYAKAWA HISAO
    応用物理学関係連合講演会講演予稿集  1994/03
  • FUJIMAKI AKIRA; KITO MASARU; KUSUNOKI MASANOBU; ANDO HIROYA; HAYAKAWA HISAO
    応用物理学関係連合講演会講演予稿集  1994/03
  • 超伝導Flux Flow Transistorの動作特性に及ぼす表面ポテンシャルの影響  [Not invited]
    安藤浩哉; 楠正暢; 藤巻朗; 早川尚夫
    電子情報通信学会超伝導エレクトロニクス研究会  1994
  • 収束イオンビームを用いた酸化物超伝導体のサブミクロン加工  [Not invited]
    楠正暢; 赤池宏之; 藤巻朗; 早川尚夫
    電子情報通信学会超伝導エレクトロニクス研究会  1994
  • サブミクロン構造をもったマイクロフラックスフロートランジスタ  [Not invited]
    楠正暢; 安藤浩哉; 藤巻朗; 早川尚夫
    秋季応用物理学会学術講演会  1994
  • Flux Flow Transistorの解析とその応用  [Not invited]
    藤巻朗; 鬼頭傑; 楠正暢; 安藤浩哉; 早川尚夫
    日本学術振興会超伝導エレクトロニクス第146委員会研究会  1994
  • Corrugation Flux Flow Transistor  [Not invited]
    藤巻朗; 楠正暢; 安藤浩哉; 鬼頭傑; 早川尚夫
    秋季応用物理学会学術講演会  1994
  • Superconducting Flux Flow Transistors with Submicrometer Structures  [Not invited]
    M. Kusunoki; H. Akaike; A. Fujimaki; H. Hayakawa
    Applied Superconductivity Conference (ASC'94)  1994
  • Computer simulations of dynamics of vortex lines in superconducting flux flow transistors  [Not invited]
    H. Andoh; M. Kusunoki; A. Fujimaki; H. Hayakawa
    Applied Superconductivity Conference (ASC'94)  1994
  • A Novel Technique for YBa2Cu3O7-x Submicrometer Structure Formation Using Focused A Novel Technique for YBa2Cu3O7-x Submicrometer Structure Formation Using Focused Ion Beam Lithograp  [Not invited]
    A. Fujimaki; M. Kusunoki; H. Hayakawa
    International Workshop on HTS Electron Devices (HTSED '94)  1994
  • 楠正暢; 赤池宏之; 藤巻朗; 高井吉明; 早川尚夫
    応用物理学会学術講演会講演予稿集  1993/09
  • 楠正暢; 田部章; 山森弘毅; 藤巻朗; 高井吉明; 早川尚夫
    応用物理学関係連合講演会講演予稿集  1993/03
  • 楠正暢; 赤池宏之; 藤巻朗; 高井吉明; 早川尚夫
    応用物理学関係連合講演会講演予稿集  1993/03
  • ギャップ電圧3mVの高品質Nb/AlOx-Al/Nb接合の作製  [Not invited]
    楠正暢; 田部章; 山森弘毅; 藤巻朗; 高井吉明; 早川尚夫
    春季応用物理学関係連合講演会  1993
  • 楠正暢; 山森弘毅; 藤巻朗; 高井吉明; 早川尚夫
    応用物理学会学術講演会講演予稿集  1991/10
  • ジョセフソンジャンクションのトンネル障壁層AlOxの酸化ガス圧と臨界電流密度の関係  [Not invited]
    楠正暢; 山森弘毅; 藤巻朗; 高井吉明; 早川尚夫
    電気関係学会東海支部連合会  1991
  • 森永 洋; 楠 正暢; 上出 和英; 大内 美佳; 日置 辰視
    年会講演予稿集  1988/03

Works

  • 単一磁束量子テラヘルツエレクトロニクスの創製
    2005
  • 携行型運動量計測デバイスを用いた高齢者用遠隔健康管理プラットホームの開発
    2005
  • 生活習慣改善のための加速度計を用いた身体活動量と質の解析用システムの開発と指導システムの作製に関する研究
    2004
  • 有機EL製造装置洗浄溶液の低コスト処理技術に関する研究
    2003
  • 超低損失高温超伝導薄膜の作成法及び高周波特性評価法
    2003
  • 移動体通信基地局用低損失高温超伝導薄膜の作製とその周辺機器の実用化②
    2002
  • 走査型表面抵抗測定装置の開発
    2001
  • 超伝導アンテナの研究
    2001
  • Study on superconducting antenna
    2001
  • マイクロ波超伝導セキュリティーシステム
    2000
  • 大面積超伝導薄膜の表面抵抗評価
    2000
  • Investigation of surface resistance of large area HTS film
    2000

MISC

Industrial Property Rights

Awards & Honors

  • 2003 インテリジェントコスモス奨励賞
     JPN
  • 2001 応用物理学会講演奨励賞
     JPN

Research Grants & Projects

  • 日本学術振興会：科学研究費助成事業
    Date (from‐to) : 2022/04 -2025/03 
    Author : 楠 正暢; 杉本 俊之
  • 日本学術振興会：科学研究費助成事業
    Date (from‐to) : 2020/04 -2023/03 
    Author : 竹島 伸生; 楠 正暢; 藤田 英二; 小濱 剛; 金 憲経
     
    これまでに東京都健康長寿医療センター研究所とのプロジェクトチームが実施した板橋区の検診において，ジョイントしKINECTを使って高齢者に１回の起居動作と開眼での20秒間その場足踏み（マーチ）テストを1500人に近い大量データを収集した。検診データは研究所において厳重に管理されており，この起居とマーチ時KINECTデータのみを持ち帰り解析を行ってきた。その解析が一人一人の動画を確認しながら行うという状況で大量データの分析プログラムが必要となったこと、歩行数などの新たな追加変数の解析が必要となり，共同研究者の小濱准教授，楠教授によってプログラムの修正を試みた。解析は可能となったが，KINECTデータと研究所に集積されたデータとの連結がコロナ感染予防のために東京への出張等全て禁止となり，データの操作が全くできない環境に陥っていたが，外出移動の緩和に伴い，少しずつであるが解析を進め，その結果から 1) Falling history associated with 20-sec stepping test movement displacement in independent, community-dwelling older women，2) Age-associated decline in 20-sec stepping test performance in independent, community-dwelling older women, 3) Head-knee movement pattern during a 20-sec stepping test discriminates dependent- from independent-living older womenについて比較検討した。これらの結果は，令和４年（2022年）度アメリカスポーツ医学会及び世界大会（サンディエゴ）において成果を公表する予定である。また，これらの成果は最終年度において論文化を行う計画である。また，フレイル，サルコペニア，軽度認知症などの変数との関連性も検討している。
  • オプティカルセンシング技術を用いた高齢者の介護予防スクリーニングシステムの開発
    文部科学省：科学研究費補助金(基盤研究(C))
    Date (from‐to) : 2017/04 -2020/03 
    Author : 竹島 伸生
  • 虚弱高齢者の自立評価の客観的指標の作成と身体運動の有用性に関する研究
    文部科学省：科学研究費補助金基盤研究(C)
    Date (from‐to) : 2014/04 -2017/03 
    Author : 竹島 伸生
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research
    Date (from‐to) : 2015 -2017 
    Author : Kusunoki Masanobu
     
    For high sensitivity and high resolution of chromatography chip and biosensor, orientation control technique of hydroxyapatite crystal film was established and the possibility of device application was investigated. We developed a crystal growth technique to separately obtain a-axis oriented and c-axis oriented films. We also revealed its crystal growth mechanism. It was suggested that the obtained a-/c- oriented film enables selective adsorption of acidic and basic proteins. In order to electrically detect the protein, the hydroxyapatite film was applied to the quartz crystal microbalance sensor, however, it did not show normal operation due to thermal distortion caused by heating process for crystallization of hydroxyapatite.
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research
    Date (from‐to) : 2012 -2014 
    Author : KUSUNOKI Masanobu; OKAI Daisuke
     
    We developed a fabrication method of new dental material of apatite sheet that prevents tooth decay. Using the pulsed laser deposition, top side of the sheet was made of crystalized fluoroapatite (F-Ap) to prevent from tooth decay, and the bottom side of the sheet was made of amorphous hydroxyapatite (H-Ap) to be able to bond itself with the tooth surface. Degree of crystallization and density of the F and OH was gradually varied from the top to the bottom through the film. X-ray diffraction showed that a single layer of the F-Ap film was crystallized with c-axis orientation perpendicular to the film surface. Fourier-transform infrared spectroscopy indicated that the single F-Ap film was pure Ca10(PO4)6F2 without OH group. The F-Ap film showed an acid resistance lower than pH of 5.
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research
    Date (from‐to) : 2012 -2014 
    Author : HAYAMI Takashi; KUSUNOKI Masanobu
     
    We have investigated the use of polyvinyl alcohol hydrogels (PVA-H) for hemiarthroplasty. In this project, we studied materials and structures of the artificial bone and cartilage constituting artificial articular cartilages. For this aim, the technique which supplies biocompatibility and suitable cancellous structure to the engineering plastic (EP) as the artificial cancellous bone was studied. And also, tribological properties of PVA-H as the artificial cartilage versus natural articular cartilage was studied. Deposition of titanium thin film to the EP surface imparted good osteoconduction and the proliferation and differentiation ability of osteoblasts to the EP bone. The wear resistance of the PVA-H mixed in only water (PVA-H/Water) which is developed in this project was compared with that of the PVA-H mixed in a conventional mixture of water and dimethyl sulfoxide (PVA/DMSO). The results indicated no significant difference in the wear resistance between PVA-H/DMSO and PVA-H/Water.
  • Ministry of Education, Culture, Sports, Science and Technology：Grants-in-Aid for Scientific Research(基盤研究(C))
    Date (from‐to) : 2009 -2011 
    Author : Masanobu KUSUNOKI; Shigehito MIKI; Daisuke OKAI
     
    We studied elemental technologies to develop HTS(high temperature superconducting) nano-wire as a key device "single photon detector" for the quantum cryptographic communication. Experiments were carried out using YBa_2Cu_3O_y(YBCO). It was shown that a 200-nm-wide and 25-mm-long nano-wire could be constructed in a 100μm×100μm square by using a 250-turns-meandering configuration. We examined how to suppress superconductivity degradation in the nano-wire during plasma etching processes. Liquid N2 cooling to a sample stage was effective to prevent the degradation from ion bombardments of plasma etching. As a result, superconducting current was observed for a 200-nm-wide and 1-μm-long nano-wire. We also investigated lattice mismatching at a hetero-epitaxial surface between YBCO and single crystal substrate. Then, YBCO thin film with only 20 nm thickness showed critical temperature(T_c) over 80 K. On the other hand, a T_c dependence on the YBCO thickness was examined from 80 nm to 10 nm. It produced a possibility to realize very thin HTS nano-wire with effective thickness less than 10 nm.
  • Ministry of Education, Culture, Sports, Science and Technology：Grants-in-Aid for Scientific Research(基盤研究(C))
    Date (from‐to) : 2009 -2011 
    Author : Takashi HAYAMI; Masanobu KUSUNOKI; Kazuaki MASTUMURA
     
    We studied on a partial repalcementable artificial articular cartilage, composed of polyvinyl alcohol hydrogel(PVM-H), or a composite osteo-chondral device(COD). The COD is able to replace the local lesion of natural articular cartilage. A long-term fixation technique between the COD and osseous tissues was studied. The COD surface must have bio-inert function. On the other hand, in the boundary between the COD and living bone, the osteoconductive adhesion is necessary. That is, the partial selective adhesion function(PSAF) was investigated. We have materialized PSAF in the COD by integration the PVA-H and several kinds of apatite thin film. Biocompatibility, mechanical strength and material property of both PVA-Hs and the thin films were studied.
  • Ministry of Education, Culture, Sports, Science and Technology：Grants-in-Aid for Scientific Research(基盤研究(B))
    Date (from‐to) : 2008 -2010 
    Author : Shigeki HONTSU; Yoshiya HASHIMOTO; Yuichi HIGUCHI; Masanobu KUSUNOKI
     
    In this study, we have aimed to develop following two types of medical/dental devices that are effective for the implant treatment in next generation. One is the freestanding membrane of biological apatite (BAp) that can be applied to the guided bone regeneration (GBR) method with the suitable bioactivity for affected region. The other is the implant in that two functions of biostability and biocompatibility were harmonized by the bilayered structure of BAp/hydroxyapatite (HAp). Both devices were prepared by using a pulsed laser deposition (PLD) technique for a thin film and bilayer formation technology. The prepared thin films and the bilayer were evaluated on chemical, physical and molecular biology. Clinical simulation test of BApGBR membrane and the function harmonized implant was carried out by using the mandibular alveolar bone and the femoral defect model of dog. As the results, the usefulness of our devices was confirmed as an implant treatment in next generation.
  • Ministry of Education, Culture, Sports, Science and Technology：Grants-in-Aid for Scientific Research(基盤研究(C))
    Date (from‐to) : 2007 -2008 
    Author : Masanobu KUSUNOKI; 藤巻 朗; 斗内 政吉; Akira FUJIMAKI; Masayoshi TONOUCHI
     
    サブテラヘルツ領域で動作する集積回路として注目されている、単一磁束量子(SFQ)回路の光出力インターフェースの基本素子として、高温超伝導ナノブリッジの作製プロセスの開発を行った。数100nm程度のスケールを有する高温超伝導ナノブリッジを用いた微小ループを基本構造とし、そこに閉じ込めたSFQを磁気光学効果により検出するデバイスを想定し、その作製法を検討した。さらにナノブリッジを光入力デバイスとして動作させることも試み、その光応答を確認した。
  • Ministry of Education, Culture, Sports, Science and Technology：Grants-in-Aid for Scientific Research(基盤研究(C))
    Date (from‐to) : 2005 -2006 
    Author : Yoshiya HASHIMOTO; Masaaki NAKAMURA; Masanobu KUSUNOKI; Shigeki HONTSU; Hiroaki NISHIKAWA
     
    This study examined in vitro cytocompatibility and in situ measurements of protein adsorption using the quartz crystal microbalance (QCM) to thin hydroxyl apatite (HA) and natural apatite (NA) films deposited by laser ablation, in order to investigate better surface conformation of titanium dental implants.Thin HA and NA films on titanium discs and the QCM sensor were made using an ArF excimer laser operating at a repletion rate of 10 Hz and annealed by heat radiation at 360℃ for 1 h. After annealing, the chemical composition of the HA film was characterized by X-ray diffraction (XRD). The surface conformation of the HA and NA films on the titanium disc was observed by energy dispersive analysis (EDX). Subsequently, primary mouse osteoblast (PMO) was cultured on the discs with or without film. Cell proliferation and differentiation were investigated by DNA assay, alkaline phosphatase activity (ALP) assay and osteocalcin production (OCN) assay. The affinity between the films and several proteins in the phosphate buffer was monitored using a 27-Hz QCM.XRD showed crystalline HA and NA films on the Ti and QCM sensor under the annealing conditions. EDX showed peaks of Na and Mg in addition to Ca and P for the NA film. PMO grew faster and had higher ALP and OCN when grown in NA films than on HA films or Ti. The absorbed amount of several proteins on the QCM sensor with NA film was significantly higher than that of HA film and non-film.Based on these findings, NA film deposited by laser ablation shows excellent cytocompatibility with cells owing to the superior absorption of protein. The results obtained could lead to the development of more effective dental implants.
  • Ministry of Education, Culture, Sports, Science and Technology：Grants-in-Aid for Scientific Research(基盤研究(C))
    Date (from‐to) : 2004 -2006 
    Author : Nobuo TAKESHIMA; 高橋 龍尚; Kazuhiro MIYAHARA; Masanobu KUSUNOKI; Tatsuhisa TAKAHASHI
     
    The purpose of this study was to guide older adults living in remote communities to improve their functional independence as well as the overall fitness by using the information technology (IT) based exercise prescription. To attain these goals, we increased daily physical activity, and developed well-rounded exercises. (aerobic + resistance + balance + flexibility) and hydraulic resistance machine-based resistance training program suitable for community dwelling older adults. We also developed immediate data feedback system for the participants that helps them to realize their instant daily physical activity level using accelerometer device even before starting of the active program. The data feedback system is operated on a computer using a touch panel menu. After inputting the participant's accelerometer data into the computer, the daily physical activity (walking steps and intensity) level of the participant is instantly estimated and the result is expressed in simple graph. The graph and information is easy to understand by an older adult. Although the touch panel system is very easy to operate, still there are some limitations of the system, and further studies are needed to overcome these limitations. We developed an exercise menu for older adults based on the outcome of our previous exercise interventions such as aerobic exercises, resistance exercises, flexibility exercises, and balance exercises. These exercises were conducted as individual program, as well as in combined forms. Due to shortage of budget and due to limitation of time, we could not transform this menu to IT based system yet. Our future plan is to develop an IT system that will include an exercise menu, and the immediate data feedback system in one package. Adherence to exercise is essential to keep holding of the attained benefit from an exercise program. To reach this goal, both the community-based and home-based exercise programs are essential as seasonal environmental variation and individual fitness variation play major role in adherence to exercises. Thus the training menu should include exercises that could be performed individually at home, as well as can be performed in groups at local community centers. We already have exercise menu, however we need to convert this menu into an IT-based menu. We hope to do this in our future work.
  • 文部科学省：科学研究費補助金(若手研究(B))
    Date (from‐to) : 2002 -2003 
    Author : 楠 正暢
     
    移動体通信基地局用超伝導フィルタの産業化に先立ち、母材となる高温超伝導薄膜の高周波表面抵抗測定・検査技術に関しての研究を行った。初年度、(1)「導体損<<誘電損となりQ値が誘電損でほぼ決定されてしまうこと」、(2)「Qが10^6〜10^7にも達し、微弱ノイズなどによる測定誤差が無視できなくなること」など、従来の標準測定法が抱える問題点を明らかにし、測定周波数をミリ波領域に高めることでこれらが解決できることを理論的・実験的に示した。最終年度となる本年は、さらに高精度測定を行うことを目的に、共振器を構成するサファイアロッドの持つ誘電損に関する個体間の僅かなばらつきに着目し、標準測定法(2共振器法)を用いた際にこれが起源となって生じる誤差の検討を行った。第一に市販のサファイアロッドのもつ誘電損のばらつきを実測によるサンプリングで把握した。これをもとに現実的な表面抵抗を想定した数値計算によるシミュレーションを行い、生じ得る誤差の範囲を見積もった。この結果、各共振モードに対応するサファイアロッドの選択、または組み合わせによって、表面抵抗に含まれる誤差を増加させる状況が起こり得ること、さらには市販品の持つばらつきの現状を考慮するとその確立が無視できないことが明らかとなった。これを改善し高精度計測を行うためには、従来無視してきたサファイアロッドの誘電損の見積もり・選択がきわめて重要なことを明らかにした。また、この誘電損に起因する誤差は、初年度行った、ミリ波帯での計測を行うことにより軽減できることも示した。
  • 文部科学省：科学研究費補助金(奨励研究(A))
    Date (from‐to) : 1999 -1999 
    Author : 楠 正暢
  • Ministry of Education, Culture, Sports, Science and Technology：Grants-in-Aid for Scientific Research(国際学術研究)
    Date (from‐to) : 1997 -1998 
    Author : Shigetoshi OHSHIMA; CHALOUPKA He; Masanobu KUSUNOKI; Hiroshi HIRATA; Kunio SAWAYA; Mitsuhiro ONO; HEINTZ Chalo; Heinz CHALOUPKA
     
    We could obtain some new results of HTS filters and antennas by the joint study between Yamagata University and Wuppertal University, The results are as follows.(1) 1997Dr.Kusunoki visited the laboratory of Prof.Chaloupka in Wuppertal University and researched about design of superconducting filters. Our group had investigated the formation process of YBCO thin films and measured its superconducting properties. We also designed superconducting antenna and filters.Prof.Chaloupka's group investigated superconducting filters.(2) 1998Prof.Chaloupka stayed our laboratory for about three weeks and coworked with us to develop superconducting filters. During his stay in our laboratory the symposium of HTS filters was held in Yamagata University. We designed cross-coupled superconducting filters which had narrow bandwidth, sharp skirt properties and small insertion loss.The joint work between Yamagata University (Ohshima's laboratory) and Wuppertal University (Chaloupka's laboratory) will be continued in 1999.
  • Ministry of Education, Culture, Sports, Science and Technology：Grants-in-Aid for Scientific Research(一般研究(B), 基盤研究(B))
    Date (from‐to) : 1995 -1997 
    Author : Shigetoshi OHSHIMA; 神戸 士郎; Hiroshi HIRATA; Masanobu KUSUNOKI
     
    We have investigated the super-gain superconducting antenna, design, fabrication and characterization. These experimental results are as follows ;(1) Establishment of the design method of patch antenna operated at microwave region.We designed the patch antenna with a resonance frequency of 5 GHz. We could obtain the Cu patch antenna with input impedance of approximately 50 ohms and the resonance frequency of 50 ohms.(2) Fabrication and characterization of superconducting patch antenna.We fabricated the superconducting patch antenna using YBCO thin films. The input impedance of these antenna was slightly larger than that of designed value, 50 ohms. The difference between experimental results and design value was caused by the surface resistance of superconducting film. The gain of superconducting patch antenna was 2-4 dB higher than that of Au film antenna(3) Preparation of YBCO thin films for superconducting antenna using a plasma coupled magnetron sputtering.We fabricated the YBCO thin films for superconducting antenna by a plasma coupled magnetron sputtering. The Tc and Jc of these films obtained were 87K and 4x10^6A/cm^2 at 77K,respectively(4) Study on superconducting patch array antenna.We designed and fabricated the superconducting two and four elements array antennas. The antennas were characterized by resonance frequency, input impedance and gain measurements. The gain of superconducting array antenna was 3.2 dB higher than that of cu-array antenna with same geometry.
  • Ministry of Education, Culture, Sports, Science and Technology：Grants-in-Aid for Scientific Research(基盤研究(A))
    Date (from‐to) : 1995 -1997 
    Author : Shigetoshi OHSHIMA; 奥山 克郎; Shiro KAMBE; Mitsuhiro ONO; Masanobu KUSUNOKI
     
    We have investigated the sub-millimeter wave superconducting array antenna, design, fabrication and characterization. These experimental results are as follows ;(1) Establishment of the design method of patch antenna operated at microwave region.We designed the patch antenna with a resonance frequency of 5 GHz and an input impedance of 50 ohms by the transmission line model and a Sonnet Software. In order to check the validity of the transmission line model, we first fabricated the Cu patch antenna, We could obtain the Cu patch antenna with input impedance of approximately 50 ohms and the resonance frequency of 50 ohms.(2) Fabrication and characterization of superconducting patch antenna.We fabricated the superconducting patch antenna using YBCO thin films. The input impedance of these antenna was slightly larger than that of designed value, 50 ohms. The gain of superconducting patch antenna was 2-4 dB higher than that of Au film antenna.(3) Preparation of YBCO thin film for microwave applications by a plasma coupled magnetron sputtering.We fabricated the YBCO thin films for superconducting antenna by a plasma coupled magnetron sputtering. The Tc and Jc of these films obtained were 87K and 4 x 10^6A/cm^2 at 77K,respectively.(4) Study on a log-periodic antenna operated in millimeter and sub-millimeter wave regionWe designed and fabricated the log-periodic antenna for millimeter and sub-millimeter weve region. We confirmed that the antenna was operated up to 40 GHz. The gain was approximately the same with that of a patch antenna.
  • Fabrication of high quality superconducting thin films
  • microwave applications of high-Tc swperconducting thin films
  • Superconducting Electronics

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