YOSHIKAWA Nobuyuki

Organization

Faculty of Engineering, Division of Intelligent Systems Engineering

Title

Professor

Date of Birth

1961

Research Fields, Keywords

Superconductivity Electronics, Design of Integrated Circuit, Electronic Device

Mail Address

E-mail address



写真a

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The Best Research Acheivement as Researcher Life 【 display / non-display 】

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Graduating School 【 display / non-display 】

  • 　
    -
    1984

    Yokohama National University   Faculty of Engineering   Graduated

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Graduate School 【 display / non-display 】

  • 　
    -
    1989

    Yokohama National University  Graduate School, Division of Engineering    Completed

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Degree 【 display / non-display 】

  • Dr. Eng. -  Yokohama National University

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Academic Society Affiliations 【 display / non-display 】

  • 2014.05
    　
    　
     

    Institute of Electrical Engineering of Japan

  • 　
    　
    　
     

    IEEE

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Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display 】

  • Electron device/Electronic equipment

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Research Career 【 display / non-display 】

  • Study on single-flux-quantum logic circuits

    JST Basic Research Programs (Core Research for Evolutional Science and Technology :CREST)  

    Project Year：  -   

    　View Summary

    The purpose of the study is to realize ultra low-power, high-speed digital integrated circuits using single-flux-quantum circuits.

  • Study on ultra low-power integrated circuits using adiabatic mode circuits

    Grant-in-Aid for Scientific Research  

    Project Year：  -   

    　View Summary

    The purpose of the study is to realize ultra-low-power integrated circuits using adiabatic-mode circuits, including adiabatic single-flux-quantum circuits and CMOS circuits.

  • Study on low-temperature CMOS integrated circuits

    International Collaboration  

    Project Year：  -   

    　View Summary

    The purpose of the study is to realize high-speed integrated circuits using low-temperature CMOS devices.

  • Study on Josephson qubits

    JST Basic Research Programs (Core Research for Evolutional Science and Technology :CREST)  

    Project Year：  -   

    　View Summary

    The purpose of the study is to realize phase qubits using Josephson junctions. Single-flux-quantum circuits will be used to control Josephson qubits.

  • Single electronics

    Grant-in-Aid for Scientific Research  

    Project Year：  -   

    　View Summary

    The purpose of the study is to realize ultra-low-power, high-density integrated circuits using single-electron tunneling effects.

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Thesis for a degree 【 display / non-display 】

  • 微小超伝導接合における新しい量子効果とその応用

    吉川　信行 

      1989.03

    Doctoral Thesis   Single Work

    　View Summary

    横浜国立大学 超伝導微小トンネル接合において生じる巨視的量子効果の研究を行った。これらの系においてジョセフソン効果と双対な巨視的量子効果が存在することを理論的に予測し、微粒子超伝導体薄膜を用いた実験によりこれらの効果の存在を実証した。

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Papers 【 display / non-display 】

  • Advanced Direct Synthesis Approach for High Selectivity In-Line Topology Filters Comprising N - 1 Adjacent Frequency-Variant Couplings

    YUXING HE, (Member, IEEE), GIUSEPPE MACCHIARELLA, (Fellow, IEEE), ZHEWANG MA, (Member, IEEE), LIGUO SUN,NOBUYUKI YOSHIKAWA 1, (Senior Member, IEEE)

    IEEE Access     2019  [Refereed]

    Joint Work

    DOI

  • Trend of Future Technologies based on Superconducting Electronics

    Yoshikawa Nobuyuki

    IEEJ Transactions on Fundamentals and Materials ( The Institute of Electrical Engineers of Japan )  139 ( 1 )   20 - 21   2019

    Single Work

    　View Summary

    <p>In this report, we represent current status of quantum computer researches using superconducting technologies and show the direction of the future research and development. A superconducting quantum computer system combining superconducting electronics and superconducting qubits based on superconducting integrated circuit technology is expected to become a more active area in the future as a potential technology for realizing a scalable large-scale quantum computers.</p>

    DOI CiNii

  • Thermally Assisted Superconductor Transistors for Josephson-CMOS Hybrid Memories

    K. Sano, M. Suzuki, K. Maruyama, S. Taniguchi, M. Tanaka, A. Fujimaki, M. Inoue, N. Yoshikawa

    IEICE Transaction on Electronics ( IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG )  E101-C ( 5 )   370 - 377   2018.05  [Refereed]

    Joint Work

    Web of Science DOI

  • Adiabatic Quantum-Flux-Parametron-Based Microprocessor: Architecture, Logic Design, Modeling, and Design Tools

    C. Ayala, N. Takeuchi, Q. Xu, Y. Yamanashi, T. Ortlepp, N. Yoshikawa,

    The 11th Superconducting SFQ VLSI Workshop (SSV 2018) / 6th CRAVITY Symposium,     2018.02

    Joint Work

  • Design of a 1-bit SFQ CPU and Comparison with CMOS and AQFP Circuits

    Y. Hironaka, C. Ayala, Y. Yamanashi, N. Yoshikawa

    The 11th Superconducting SFQ VLSI Workshop (SSV 2018) / 6th CRAVITY Symposium     2018.02

    Joint Work

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Review Papers 【 display / non-display 】

  • 位相エンジニアリングの研究動向と新展開

    吉川信行

    電気学会論文誌A（基礎・材料・共通部門誌） ( 一般社団法人　電気学会 )  137 ( 1 ) 23 - 25   2017.01

    Introduction and explanation (bulletin of university, research institution)   Single Work

    DOI

  • Toward the Creation of Future Technologies based on Superconductivity

    吉川　信行

    電気学会論文誌. A   136 ( 1 ) 18 - 20   2016.01

    Introduction and explanation (scientific journal)   Single Work

    　View Summary

    超電導分野における、材料開発、線材開発、マグネット応用、エレクトロニクス応用などの研究開発の世界においける現状をレビューするとともに、今後のトレンドや開発目標について解説を行った。

    DOI

  • 超電導が切り開く未来技術の創生に向けて

    吉川 信行

    電気学会論文誌Ａ（基礎・材料・共通部門誌） ( 一般社団法人 電気学会 )  136 ( 1 ) 18 - 20   2016.01

    Introduction and explanation (scientific journal)   Single Work

    DOI

  • A Desk-Side Supercomputer with RSFQ Reconfigurable Data-Paths

    N. Takagi, K.Murakami, A. Fujimaki, N. Yoshikawa, K. Inoue, H. Honda

    日本学術振興会　超伝導エレクトロニクス第146委員会　創立２５周年記念シンポジウム     2007.10

    Introduction and explanation (others)   Joint Work

  • Development of SFQ Digital Circuit Technology at YNU

    吉川信行

    日本学術振興会第146委員会「ディジタル応用」分科会第21回分科会研究会     2006.04

    Introduction and explanation (others)   Single Work

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Grant-in-Aid for Scientific Research 【 display / non-display 】

  • Study on Adiabatic Single-Flux-Quantum Circuits Operating in the Thermodynamic Energy Limit

    Grant-in-Aid for Scientific Research(S)

    Project Year： 2014.04  -  2019.03  Investigator(s): Nobuyuki Yoshikawa

  • Study on sub-μW microprocessors using adiabatic-mode single-flux-quantum circuits

    Grant-in-Aid for Scientific Research(S)

    Project Year： 2010.06  -  2015.03  Investigator(s): Nobuyuki Yoshikawa

  • Grant-in-Aid for challenging Exploratory Research

    Project Year： 2013.04  -  2015.03  Investigator(s): Nobuyuki Yoshikawa

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Presentations 【 display / non-display 】

  • Passive transmission lines matching and layout

    N. Yoshikawa  [Invited]

    Design, Automation and Test in Europe (DATE 2019)  (Florence, Italy)  2019.03.25  

    　View Summary

    N. Yoshikawa, “Passive transmission lines matching and layout, " Design, Automation and Test in Europe (DATE 2019), Florence, Italy, Mar. 25-29, 2019, D5L3(Tutorial Lecture).

  • Thin-film basics and device manufacture

    N. Yoshikawa  [Invited]

    South African Superconducting Quantum electronic circuit design tools and Analysis workshop (SASQIA 2019)  (Hermanus, Cape Town)  2019.03.03  

    　View Summary

    N. Yoshikawa, “Thin-film basics and device manufacture, " South African Superconducting Quantum electronic circuit design tools and Analysis workshop (SASQIA 2019), Hermanus, Cape Town, Mar. 3-8, 2019, D1L3(Tutorial Lecture).

  • Passive transmission lines matching and layout

    N. Yoshikawa  [Invited]

    South African Superconducting Quantum electronic circuit design tools and Analysis workshop (SASQIA 2019)  (Cape Town, South Africa)  2019.03.03  

    　View Summary

    N. Yoshikawa, “Passive transmission lines matching and layout, " South African Superconducting Quantum electronic circuit design tools and Analysis workshop (SASQIA 2019), Cape Town, South Africa, Mar. 3-8, 2019, D5L3(Tutorial Lecture).

  • Development of an extremely energy-efficient AQFP microprocessor

    C. Ayala, Olivia Chen, R. Saito, T. Tanaka, N. Takeuchi, Y. Yamanashi, N. Yoshikawa  [Invited]

    The 31st International Symposium on Superconductivity (ISS2018)  (Ibaraki, Japan)  2018.12.12  

    　View Summary

    C. Ayala, Olivia Chen, R. Saito, T. Tanaka, N. Takeuchi, Y. Yamanashi, N. Yoshikawa, “Development of an extremely energy-efficient AQFP microprocessor, " The 31st International Symposium on Superconductivity (ISS2018), Ibaraki, Japan, Dec. 12-14, 2018, ED5-2-INV(招待発表).

  • High-speed and Low-power signal processing using superconducting circuits

    N. Yoshikawa  [Invited]

    Workshop on the future of silicon detector technologies FuTuRe II  (Erfurt, Germany)  2018.12.02  

    　View Summary

    N. Yoshikawa, “High-speed and Low-power signal processing using superconducting circuits," Workshop on the future of silicon detector technologies FuTuRe II, Erfurt, Germany, December 2-4, 2018(招待発表)

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Preferred joint research theme 【 display / non-display 】

  • Research on High-Speed Integrated Circuits using Single Flux Quantum Logic Circuits

  • Research on Low Power CMOS Integrated Circuits

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Past of Collaboration and Commissioned Research 【 display / non-display 】

  • Research on Josephson/CMOS Hybrid Memories

    International Cooperative Research  

    Project Year： 2001  -  2001 

  • Research on Superconductor/Semiconductor Hybrid Circuits

    Cooperative Research within Japan  

    Project Year： 2000  -  2001 

  • Research on Design Methodologies of Single Flux Quantum Integrated Circuits

    Funded Research on Investiment  

    Project Year： 2000  -  2001 

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Council/Academic activity outside the university 【 display / non-display 】

  • Board Members of Applied Superconductivity Conference

    2016.10
    -
    2022.09

    Society   Board Members of Applied Superconductivity Conference

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