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Yamaguchi Masahiro  山口 正洋

… Alternative Names

山口 正洋  ヤマグチ マサヒロ

YAMAGUCHI Masahiro  山口 正洋

Less
Researcher Number 10174632
Other IDs
  • ORCIDhttps://orcid.org/0000-0002-3601-7619
External Links
Affiliation (Current) 2025: 東北大学, 医工学研究科, 特任教授
Affiliation (based on the past Project Information) *help 2014 – 2016: 東北大学, 工学(系)研究科(研究院), 教授
2007: Tohoku University, 大学院・工学研究科, 教授
2006: Tohoku Univ., Professor, 大学院工学研究科, 教授
2003 – 2005: 東北大学, 大学院・工学研究科, 教授
2000 – 2002: 東北大学, 電気通信研究所, 助教授 … More
1991 – 1995: 東北大学, 電気通信研究所, 助教授
1992: 東北大学電気通信研究所, 助教授
1988: Research Institute of Electrical Communication,Tohoku Univ., 電気通信研究所, 助手 Less
Review Section/Research Field
Principal Investigator
電子デバイス・機器工学 / Electron device/Electronic equipment / Science and Engineering
Except Principal Investigator
電子材料工学 / Applied materials / Structural/Functional materials / Electronic materials/Electric materials / Electronic materials/Electric materials
Keywords
Principal Investigator
Q値 / 集積化インダクタ / 透磁率 / インダクタンス / 強磁性共鳴 / RF集積化インダクタ / コイル / Q / 磁性薄膜 / マイクロパターン化 … More / Quality Factor / Coil / Ferromagnetic Film / Micro Patterning / Mobile Device / High frequency / Integrated Inductor / イオンミリング / マイクロパターン化磁性薄膜 / RF集積化磁性薄膜インダクタ / 内部コイル型 / 強磁性薄膜 / 携帯機器 / 高周波 / 負透磁率 / 表皮効果 / マイクロ・ナノデバイス / 外部コイル型 / 携帯電話 / 高周波透磁率 / バイアス磁界 / マイクロ磁気デバイス / 分布磁束 / 高周波測定 / マイクロインダクタ / YIG … More
Except Principal Investigator
急冷薄帯 / Goss texture / rolled texture / grain texture / steel with low iron loss / silicon / High-silicon steel / Goss集合組織 / 圧延組織 / 集合組織 / 低損失珪素鋼 / 高珪素鋼板 / magnetic anisotropy / coercive force / order-disorder transformation / rapidly quenched ribbon / High-silicon iron alloy / 規則一不規則変態 / 磁歪 / 磁気異方性 / 保磁力 / 規則ー不規則変態 / 高珪素鉄合金 / Micro magnetic probe method / Magnetic loss / Electric resistive loss / Deposition at low temperature / Nano-granular structure / GHz band / Electromagnetic noise suppression / Magnetic thin film / マイクロストリップライン法 / 空間インピーダンス / 高電気比抵抗 / 異方性磁界 / マイクロ磁気プローブ法 / 磁気損失 / 抵抗損失 / 低温成膜 / ナノグラニュラー構造 / GHz帯域 / 電磁波ノイズ抑制効果 / 磁性薄膜 / DOMAIN WALL NUMBER / SCANNING ELECTRON MICROSCOPE / ETCHING / IRON LOSS / EDDY CURRENT LOSS / DOMAIN REFINEMENT / GROOVING / 3% SILICON-IRON / 磁壁枚数 / 走査型電子顕微鏡 / プラズマエッチング / 鉄損 / 渦電流損失 / 磁区細分化 / 細溝 / 3%シリコン鉄磁性合金薄帯 / Groove / Domain wall velocity / Core loss / Toroidal core / Dynamic domain behavior / SZM / Domain observation / Ultra thin grain oriented silicon steel / スクラッチ / 磁心 / 動特性 / 180゚磁壁 / 180°磁壁 / 磁壁速度 / 損失 / メイズパターン / トロイダルコア / SEM / 磁区観察 / 極薄方向性珪素鋼帯 / スピンダイナミックス / スピントロ二クス / 電子・電気材料 / 電子デバイス・機器 / 先端機能デバイス / スピンダイナミクス / 高周波伝送線路 / 磁性 / スピントロニクス / 電気・電子材料 Less
  • Research Projects

    (10 results)
  • Research Products

    (22 results)
  • Co-Researchers

    (23 People)
  •  Control of Spin-dynamics Associated with Scale and its Device Application

    • Principal Investigator
      ENDO YASUSHI
    • Project Period (FY)
      2014 – 2016
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Electronic materials/Electric materials
    • Research Institution
      Tohoku University
  •  メタル-磁性体積層薄膜による高Q集積化インダクタPrincipal Investigator

    • Principal Investigator
      山口 正洋
    • Project Period (FY)
      2006 – 2007
    • Research Category
      Grant-in-Aid for Exploratory Research
    • Research Field
      Electron device/Electronic equipment
    • Research Institution
      Tohoku University
  •  Synthesis of near future electromagnetic noise suppressor with nano-granular structure and their application to electric devices.

    • Principal Investigator
      OHNUMA Shigehiro
    • Project Period (FY)
      2004 – 2006
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Structural/Functional materials
    • Research Institution
      Research Institute for Electric and Magnetic Materials (RIEMM)
  •  極微小・高Q集積化RF強磁性薄膜インダクタPrincipal Investigator

    • Principal Investigator
      山口 正洋
    • Project Period (FY)
      2001 – 2003
    • Research Category
      Grant-in-Aid for Scientific Research on Priority Areas
    • Review Section
      Science and Engineering
    • Research Institution
      Tohoku University
  •  Development of GHz-Drive Magnetic Thin Film Inductors for Integrated CircuitsPrincipal Investigator

    • Principal Investigator
      YAMAGUCHI Masahiro
    • Project Period (FY)
      2000 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      電子デバイス・機器工学
    • Research Institution
      Tohoku University
  •  Domain refinement technique for very thin silicon steel sheets

    • Principal Investigator
      ARAI Kenichi
    • Project Period (FY)
      1994 – 1995
    • Research Category
      Grant-in-Aid for Developmental Scientific Research (B)
    • Research Field
      Electronic materials/Electric materials
    • Research Institution
      Tohoku University
  •  YIG単結晶薄膜を用いたマイクロインダクタの超高周波特性とその理論的解析Principal Investigator

    • Principal Investigator
      山口 正洋
    • Project Period (FY)
      1993
    • Research Category
      Grant-in-Aid for General Scientific Research (B)
    • Research Institution
      Tohoku University
  •  Direct observation of dynamic domain behavior and core loss in ultra thin grain oriented silicon steel.

    • Principal Investigator
      ARAI Kenichi
    • Project Period (FY)
      1991 – 1992
    • Research Category
      Grant-in-Aid for General Scientific Research (B)
    • Research Field
      電子材料工学
    • Research Institution
      Tohoku University
  •  Effect of Quenching on Order-Disorder Phase Transformation and Magnetic Anisotropy in High Silicon Iron Alloys

    • Principal Investigator
      ARAI Ken-Ichi
    • Project Period (FY)
      1987 – 1988
    • Research Category
      Grant-in-Aid for General Scientific Research (A)
    • Research Field
      Applied materials
    • Research Institution
      TOHOKU UNIVERSITY
  •  Preparation of High-Silicon Iron Sheet with Low Iron Loss and its Application to Magnetic Devices

    • Principal Investigator
      ARAI Ken-Ichi
    • Project Period (FY)
      1987 – 1988
    • Research Category
      Grant-in-Aid for Developmental Scientific Research
    • Research Field
      電子材料工学
    • Research Institution
      TOHOKU UNIVERSITY

All 2016 2015 2014 2008 2006 2004

All Journal Article Presentation

  • [Journal Article] Substrate Influence on the Magnetization Dynamics of Ni-Fe Thin Films2016

    • Author(s)
      Yasushi Endo, Yoshio Mitsuzuka, Takamichi Miyazaki, Yutaka Shimada, Masahiro Yamaguchi
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 52 Issue: 7 Pages: 1-4

    • DOI

      10.1109/tmag.2016.2526041

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26630296, KAKENHI-PROJECT-26289082
  • [Journal Article] Effect of Zr and Nb addtitions on high frequency magnetic properties of Co85-(x+y)Zr3+xNb12+y films2015

    • Author(s)
      Yasushi Endo, Tetsuo Ito, Yutaka Shimada, Masahiro Yamaguchi
    • Journal Title

      Journal of Applied Physics

      Volume: 117

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Journal Article] Study on the Magnetization Dynamics of Ni-Fe Dot Arrays Estimated by the CPW-FMR Measurement Method2015

    • Author(s)
      Yasushi Endo, Yutaka Shimada, Masahiro Yamaguchi
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 51 Issue: 11 Pages: 2300604-2300604

    • DOI

      10.1109/tmag.2015.2434400

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26630296, KAKENHI-PROJECT-26289082
  • [Journal Article] Stripe height effect on the critical current density of spin-torque noise in a tunneling magnetoresistive read head with a low resistance area product below 1.0 Ω.μm22015

    • Author(s)
      Y. Endo, P. Fan, M. Yamaguchi
    • Journal Title

      Journal of Applied Physics

      Volume: 117

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Journal Article] Slit design consideration on the ferromagnetic RF integrated inductor2006

    • Author(s)
      Masahiro Yamaguchi
    • Journal Title

      IEEE Transactions on Magnetics 42・5

      Pages: 3341-3343

    • Data Source
      KAKENHI-PROJECT-18656100
  • [Journal Article] Evaluation of RF Magnetic Thin Film Noise Suppresson Integrated onto an Operating LSI Chip2006

    • Author(s)
      T.Fukushima, S.Koya, H.Ono, N.Masuda, M.Yamaguchi
    • Journal Title

      J. Magn. Soc. Jpn. 30

      Pages: 531-534

    • Data Source
      KAKENHI-PROJECT-16360351
  • [Journal Article] Analysis of Optimum Sheet Resistance for Integrated Electromagnetic Noise Suppressors2006

    • Author(s)
      K.Maruta, M.Sugawara, Y.Shimada, M.Yamaguchi
    • Journal Title

      IEEE Trans. Magn 42(10)

      Pages: 3377-3379

    • Data Source
      KAKENHI-PROJECT-16360351
  • [Journal Article] Metal-Oxide Type Nano-granular Soft Magnetic Films and Their Noise Suppression Effect at GHz Frequencies2004

    • Author(s)
      S.Ohnuma, T.Iwasa, H.Fujimori, T.Masumoto, H.Nagura, M.Yamaguchi
    • Journal Title

      Trans.Ninth International Conference on Ferrites

      Pages: 775-779

    • Data Source
      KAKENHI-PROJECT-16360351
  • [Journal Article] RF Integrated Noise Suppressor Using Soft Magnetic Films2004

    • Author(s)
      K.H.Kim, S.Ohnuma, M.Yamaguchi
    • Journal Title

      IEEE Transactions on Magnetics 40

      Pages: 2838-2840

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16360351
  • [Presentation] Substrate Influence on the Magnetization Dynamics of Ni-Fe Thin Films2016

    • Author(s)
      Yasushi Endo, Yoshio Mitsuzuka, Takamichi Miyazaki, Yutaka Shimada and Masahiro Yamaguchi
    • Organizer
      13th Joint MMM-INTERMAG Conference
    • Place of Presentation
      San Diego (米国)
    • Year and Date
      2016-01-13
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] Magnetic characterization of on-chip integrated layer of substituted Sr-M hexaferrite beyond 10 GHz2015

    • Author(s)
      R. Sai, Y. Endo, Y, Shimada, R. Naik, N. Bhat, S.A. Shivashankar and M. Yamaguchi
    • Organizer
      IEEE International Magnetics Conference (INTERMAG 2015 BEIJING)
    • Place of Presentation
      China National Convention Center, Beijng (中国)
    • Year and Date
      2015-05-12
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] Co85-(x+y)Zr3+xNb12+y膜における高周波磁気特性のZrおよびNb組成による変化2015

    • Author(s)
      遠藤 恭,伊藤哲夫,島田 寛,山口正洋
    • Organizer
      平成27年電気学会全国大会
    • Place of Presentation
      東京都市大学(東京都)
    • Year and Date
      2015-03-24
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] Measurement of complex permeability of Co- and Ti-substituted Sr-M by short-circuited coaxial trasmission line method2015

    • Author(s)
      Ranajit Sai, Shigeru Takeda, Yasushi Endo, Hanae Aoki and Masahiro Yamaguchi
    • Organizer
      第39回日本磁気学会学術講演
    • Place of Presentation
      名古屋大学 (名古屋市)
    • Year and Date
      2015-09-09
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] Study on the magnetization dynamics of Ni-Fe dot arrays estimated by the CPW-FMR measurement2015

    • Author(s)
      Y. Endo, Y. Shimada and M. Yamaguchi
    • Organizer
      IEEE International Magnetics Conference (INTERMAG 2015 BEIJING)
    • Place of Presentation
      China National Convention Center, Beijng (中国)
    • Year and Date
      2015-05-13
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] 磁界掃引CPW-FMR測定によるNi-Fe薄膜のダンピング定数の評価2015

    • Author(s)
      遠藤恭、山口正洋
    • Organizer
      第39回日本磁気学会学術講演
    • Place of Presentation
      名古屋大学 (名古屋市)
    • Year and Date
      2015-09-09
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] 磁界掃引CPW-FMR測定を用いたNi-Fe薄膜のダンピング定数の評価2015

    • Author(s)
      遠藤恭、山口正洋
    • Organizer
      平成27年度スピニクス特別研究会
    • Place of Presentation
      信州大学 (長野市)
    • Year and Date
      2015-11-20
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] TMRヘッドから発生する磁化揺らぎノイズに関する研究2014

    • Author(s)
      遠藤 恭,樊 鵬,山口正洋
    • Organizer
      第38回日本磁気学会学術講演会
    • Place of Presentation
      慶應義塾大学(横浜市)
    • Year and Date
      2014-09-04
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] Study on the Electromagnetic Noise Suppression in LTE-Class RFIC Chips Using Soft Magnetic Thin Films (Invited)2014

    • Author(s)
      Yasushi Endo, Masahiro Yamaguchi, Sho Muroga, Satoshi Tanaka, Yutaka Shimada
    • Organizer
      2014 IEEE ICMM
    • Place of Presentation
      仙台国際センター(仙台市)
    • Year and Date
      2014-07-02
    • Invited
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] Magnetization Dynamics of Ni-Fe Elliptical Dot Arrays Measured by the FMR Measurement with a CPW2014

    • Author(s)
      Yasushi Endo, Masahiro Yamaguchi
    • Organizer
      Progress In Electromagnetics Research Symposium 2014
    • Place of Presentation
      Guangzhou(中国)
    • Year and Date
      2014-08-25
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] Effect of Zr and Nb addtitions on high frequency magnetic properties of Co85-(x+y)Zr3+xNb12+y films2014

    • Author(s)
      Yasushi Endo, Tetsuo Ito, Yutaka Shimada, Masahiro Yamaguchi
    • Organizer
      59th Annual Conference on Magnetism and Magnetic Materials
    • Place of Presentation
      Honolulu, Hawaii(米国)
    • Year and Date
      2014-11-05
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] Stripe height effect on the critical current density of spin-torque noise in a tunneling magnetoresistive read head with a low resistance area product below 1.0 Ω.μm22014

    • Author(s)
      Y. Endo, P. Fan, M. Yamaguchi
    • Organizer
      59th Annual Conference on Magnetism and Magnetic Materials
    • Place of Presentation
      Honolulu, Hawaii(米国)
    • Year and Date
      2014-11-06
    • Data Source
      KAKENHI-PROJECT-26289082
  • [Presentation] Experimenta1 Verification of Skin Effect Suppression in Multilayer Thin-Film Conductor Taking Advantage of Negative Permeability of Magnetic Film beyond FMR frequency2008

    • Author(s)
      M. Yamaguchi
    • Organizer
      2008 IEEE International Magnetics Conference (Intermag 2008)
    • Place of Presentation
      Municipal Conference Center of Madrid, Spain
    • Year and Date
      2008-05-07
    • Data Source
      KAKENHI-PROJECT-18656100
  • 1.  ARAI Kenichi (40006268)
    # of Collaborated Projects: 7 results
    # of Collaborated Products: 0 results
  • 2.  ISHIYAMA Kazushi (20203036)
    # of Collaborated Projects: 7 results
    # of Collaborated Products: 0 results
  • 3.  Shimada Yutaka (00006157)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 7 results
  • 4.  YABUKAMI Shin (00302232)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 5.  ENDO YASUSHI (50335379)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 16 results
  • 6.  Miyazaki Takamichi (20422090)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 7.  BI Xisao-fang (10261570)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 8.  OHNUMA Shigehiro (50142633)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 2 results
  • 9.  KOBAYASHI Nobukiyo (70205475)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 10.  TAKEUCHI Toshio (70006245)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 11.  YAMASHIRO Yasumasa (60045010)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 12.  池田 愼治 (50361126)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 13.  金 基ひょん (40361125)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 14.  石山 和志 (10005580)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 15.  石山 和志 (30006192)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 16.  Muroga Sho
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 17.  KATOU Yoshinori
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 18.  OHTSUKI Etsuo
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 19.  ONO Yuhji
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 20.  TOKUSHIMA Tadao
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 21.  ぺい 碩
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 22.  蛸島 武宏
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 23.  TAKOSHIMA Takehiro
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results

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