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Affiliation |
Institute for Multidisciplinary Sciences |
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Job Title |
Professor |
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Research Fields, Keywords |
ナノデバイス, トランジスタ, センサ, 単一電子, 計数統計, 非平衡統計力学 |
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Related SDGs |
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NISHIGUCHI Katsuhiko
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ORCID
Education 【 display / non-display 】
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1998.4-2000.3
Tokyo Institute of Technology Master Course Completed
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2000.4-2002.3
Tokyo Institute of Technology Doctor Course Completed
Degree 【 display / non-display 】
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Doctor of Engineering - Tokyo Institute of Technology
Campus Career 【 display / non-display 】
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2026.1
Duty Yokohama National UniversityInstitute for Multidisciplinary Sciences Professor
External Career 【 display / non-display 】
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2002.4-2025.12
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2015.10-2016.3
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2012.8-2013.8
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2008.6
Academic Society Affiliations 【 display / non-display 】
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1999.6
応用物理学会
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2025.1
日本物理学会
Research Areas 【 display / non-display 】
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Nanotechnology/Materials / Applied physics - general
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electronic devices and equipment
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Natural Science / Semiconductors, optical and atomic physics
Qualification acquired 【 display / non-display 】
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Organic Solvent Work Chief Person
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Specified Chemical Substances Work Chief
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X-ray Work Chief Person
Books 【 display / non-display 】
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Device Applications of Silicon Nanocrystals and Nanostructures
Yasuo Takahashi , Yukinori Ono, Akira Fujiwara, Katsuhiko Nishiguchi, Hiroshi Inokawa（ Role： Joint author , Silicon Single-Electron Devices）
Springer （ ISBN:9780387786889 ）
Language：English Book type：Scholarly book
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Nanotechnology
Yukinori Ono, Hiroshi Inokawa, Yasuo Takahashi, Katsuhiko Nishiguchi, Akira Fujiwara（ Role： Sole author , Single-Electron Transistor and its Logic Application）
Wiley-VCH （ ISBN:9783527317370 ）
Language：English Book type：Scholarly book
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Silicon Nanoelectronics
Hiroshi Mizuta, Katsuhiko Nisihguchi, Shunri Oda（ Role： Sole author , Ballistic Transport in Silicon Nanostructures）
CRC Press （ ISBN:9781315220857 ）
Language：English Book type：Scholarly book
Thesis for a degree 【 display / non-display 】
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シリコンナノデバイスによるバリスティック伝導と電子放出現象の研究
西口克彦
2002.3
Doctoral Thesis Single Work
Papers 【 display / non-display 】
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Shimizu, T; Chida, K; Yamahata, G; Nishiguchi, K
Physical Review Letters 136 ( 11 ) 117103-1 - 117103-7 2026.3 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Single Work
<jats:p>We measured the energy efficiency of information erasure using silicon DRAM cells capable of counting charges on capacitors at the single-electron level. Our measurements revealed that the efficiency decreased as the erasure error probability decreased, and notably, the Landauer limit was not achieved, even under effectively infinite-time bit erasure. By comparing the measured efficiency with the Landauer limit, we identified a thermodynamic constraint that prevents DRAM from reaching this limit: the inability to prepare the initial state in thermal equilibrium, which in turn, prohibits quasistatic operations. This finding has broad implications for DRAM cells and for many electronic circuits sharing similar structures. Furthermore, it validates our experimental approach to discovering thermodynamic constraints that impose tighter, practically relevant limits, opening a new direction in information thermodynamics research.</jats:p>
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Chida, K; Andrieux, A; Nishiguchi, K
Communications Physics 9 ( 1 ) 2025.12 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Joint Work
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Salhani, C; Chida, K; Shimizu, T; Hayashi, T; Nishiguchi, K
Physical Review Applied 23 ( 2 ) 2025.2 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Joint Work
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Nishiguchi, K; Yamaguchi, H; Fujiwara, A; van der Zant, HSJ; Steele, GA
Applied Physics Letters 122 ( 4 ) 2023.1 [Reviewed]
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Joint Work
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Deviation from the law of energy equipartition in a small dynamic-random-access memory
Carles, Pierre-Alix and Nishiguchi, Katsuhiko and Fujiwara, Akira
Japanese Journal of Applied Physics 54 ( 6 ) 2015 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
Industrial Property Rights 【 display / non-display 】
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センサ
西口 克彦, 登坂 仁一郎, 知田 健作
Patent/Registration no：特許第7513104号
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Si単結晶微粒子積層方法
小田 俊理, 西口 克彦, 趙 新為
Patent/Registration no：特許第3677558号
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量子サイズ効果型微小電子銃の製造方法
小田 俊理, 趙 新為, 西口 克彦
Patent/Registration no：特許第3806751号
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自動位相制御単電子トランジスタ素子
西口 克彦, 高橋 庸夫
Patent/Registration no：特許第4171325号
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Si単結晶微粒子積層方法
小田 俊理, 西口 克彦, 趙 新為
Patent/Registration no：特許第4337123号
Awards 【 display / non-display 】
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36th International Microprocesses and Nanotechnology Conference (MNC 2023) Most Impressive Presentation Award
2023.11 MNC Room-temperature single-electron sensor for AC signals beyond an RC time constant
Individual or group name of awards：Katsuhiko Nishiguchi, Akira Fujiwara, Kensaku Chida
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応用物理学会 JJAP論文奨励賞 第38回（2016年度）
2016.9 応用物理学会 Deviation from the law of energy equipartition in a small dynamic-random-access memory
Individual or group name of awards：Pierre-Alix Carles (Katsuhiko Nishiguchi、Akira Fujiwara)
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応用物理学会 第7回シリコンテクノロジー分科会研究奨励賞
2016.3 応用物理学会 シリコンにおける直接・間接光学遷移の電 気的調整
Individual or group name of awards： 登坂仁一郎、西口克彦、藤原聡
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応用物理学会 第35回（2013年度）応用物理学会論文賞
2013.9 応用物理学会 Single-Electron Stochastic Resonance Using Si Nanowire Transistors
Individual or group name of awards：西口克彦、藤原聡
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文部科学大臣表彰若手科学者賞 (科学技術分野)
2013.4 文部科学省 ナノスケール半導体デバイスの高機能化の研 究
Individual or group name of awards：西口克彦
Grant-in-Aid for Scientific Research 【 display / non-display 】
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超低消費エネルギー・高ノイズ耐性を実現する演算メモリ回路の基盤技術創生
Grant number：26H02150 2026.4 - 2030.3
Grant-in-Aid for Scientific Research(A)
Investigator(s)：西口克彦
Authorship：Principal investigator
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多値ＲｅＲＡＭ搭載のナノドットアレイによる多入力多出力フレキシブルデバイスの研究
Grant number： 24360128 2012.4 - 2015.3
Grant-in-Aid for Scientific Research(B)
Investigator(s)：高橋 庸夫
Authorship：Collaborating Investigator(s) (not designated on Grant-in-Aid) Grant type：Competitive
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シリコン・シングルドーパント・エレクトロニクス
Grant number：20241036 2008.4 - 2012.3
Grant-in-Aid for Scientific Research(A)
Investigator(s)：小野 行徳
Authorship：Coinvestigator(s)
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シリコン集積回路プロセスによる単電子デバイス・回路の研究
Grant number：19310093 2007.4 - 2010.3
Grant-in-Aid for Scientific Research(B)
Investigator(s)：猪川 洋
Authorship：Coinvestigator(s)
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シリコンナノドットを用いた論理機能選択デバイス
Grant number：19026001 2007.4 - 2008.3
Grant-in-Aid for Scientific Research on Priority Areas
Investigator(s)：高橋 庸夫
Authorship：Coinvestigator(s)
Presentations 【 display / non-display 】
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AC-signal sensing beyond cutoff frequency using a DRAM
Chloe Salhani, Kensaku Chida, Toshiaki Hayashi, Katsuhiko Nishiguchi
37th International Microprocesses and Nanotechnology Conference (MNC2024)
Event date： 2024.11
Language：English Presentation type：Oral presentation (general)
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Single-electron circuit for stochastic data processing using nano-MOSFETs
K. Nishiguchi, A. Fujiwara
International Electron Devices Meeting (IEDM) 2007
Event date： 2007.12
Language：English Presentation type：Oral presentation (general)
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Room-temperature single-electron transfer and detection with silicon nanodevices
K. Nishiguchi, A. Fujiwara, Y. Ono, H. Inokawa, Y. Takahashi
International Electron Devices Meeting (IEDM) 2004
Event date： 2004.12
Language：English Presentation type：Oral presentation (general)
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DRAMセルにおける情報消去の最適輸送
清水貴勢, ヴーバンタン, 齊藤圭司, 知田健作, 山端元音, 西口克彦
日本物理学会 2026年春季大会 26aL1-9
Event date： 2026.3
Language：Japanese Presentation type：Oral presentation (general)
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半導体・絶縁体界面における谷分離の発現機構について
林 稔晶, 影島 博之, 篠原 康, 登坂 仁一郎, 西口 克彦
第73回応用物理学春季学術講演会, 16p-S2_203-11
Event date： 2026.3
Language：Japanese Presentation type：Oral presentation (general)
Charge of on-campus class subject 【 display / non-display 】
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2026 Advanced integrated system analysis F
Graduate school of Engineering Science
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2026 Advanced integrated system analysis S
Graduate school of Engineering Science
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2026 Advanced integrated system design F
Graduate school of Engineering Science
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2026 Advanced integrated system design S
Graduate school of Engineering Science
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2026 Novel functional electronic devices
Graduate school of Engineering Science
Committee Memberships 【 display / non-display 】
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International Microprocesses and Nanotechnology Conference (MNC)
2023.1 Organizing Committee Vice Chairs
Committee type：Academic society
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Silicon Nanoelectronics Workshop (SNW)
2025.1 Vice-Program Chair
Committee type：Academic society
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International Conference on Solid State Devices and Materials (SSDM)
2026.1 Steering Committee
Committee type：Academic society
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The International Symposium on Control of Semiconductor Interfaces (ISCSI)
2025.1 - 2025.10 Program Committee
Committee type：Academic society
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International Microprocesses and Nanotechnology Conference (MNC)
2022.1 - 2022.12 Steering Committee Chair
Committee type：Academic society