YOSHIKAWA Nobuyuki

Affiliation

Faculty of Engineering, Division of Intelligent Systems Engineering

Job Title

Professor

Date of Birth

1961

Research Fields, Keywords

Superconductivity Electronics, Design of Integrated Circuits, Quantum Computing, Electronic Devices

Mail Address

E-mail address

Web Site

http://www.yoshilab.dnj.ynu.ac.jp/yoshilab_hp/index_english.html

Related SDGs




写真a

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The Best Research Achievement in Research Career 【 display / non-display 】

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The Best Research Achievement in the last 5 years 【 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 】

  • Doctor of Engineering -  Yokohama National University

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Campus Career 【 display / non-display 】

  • 2004.04
    -
    Now

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Professor  

  • 2001.04
    -
    2004.03

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 1993.04
    -
    2001.03

    Duty   Yokohama National UniversitySchool of Engineering   Associate Professor  

  • 1991.04
    -
    1993.03

    Duty   Yokohama National UniversitySchool of Engineering   Lecturer  

  • 1989.04
    -
    1991.03

    Duty   Yokohama National UniversitySchool of Engineering   Research Associate  

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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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Books 【 display / non-display 】

  • Fundamentals and Frontiers of the Josephson Effect

    Editor: Francesco Tafuri (Part： Single Work , Range: 16.6 Adiabatic flux Quantum Parametron Logic )

    Springer  2019.09 ISBN: 0933-033X

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Papers 【 display / non-display 】

  • Simulation of the Margins in Single Flux Quantum Circuits Containing pi-Shifted Josephson Junctions

    Yamanashi Yuki, Nakaishi Sotaro, Yoshikawa Nobuyuki

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY ( IEEE )  29 ( 5 )   1301805 - 1301805   2019.08  [Refereed]  [Invited]

    Joint Work

    Web of Science DOI

  • Demonstration of a Superconducting Nanowire Single-Photon Detector using Adiabatic Quantum-Flux-Parametron Logic in a 0.1-W Gifford-McMahon Cryocooler

    Takeuchi Naoki, Yamashita Taro, Miyajima Shigeyuki, Miki Shigehito, Yoshikawa Nobuyuki, Terai Hirot … Show more authors

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY ( IEEE )  29 ( 5 )   2201004 - 2201004   2019.08  [Refereed]

    Joint Work

    Web of Science DOI

  • Fabrication of Adiabatic Quantum-Flux-Parametron Integrated Circuits Using an Automatic Placement Tool Based on Genetic Algorithms

    Tanaka Tomoyuki, Ayala Christopher L., Xu Qiuyun, Saito Ro, Yoshikawa Nobuyuki

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY ( IEEE )  29 ( 5 )   1301706 - 1301706   2019.08  [Refereed]

    Joint Work

    Web of Science DOI

  • Demonstration of Picosecond Time Resolution in Double-Oscillator Time-to-Digital Converter Using Single-Flux-Quantum Circuits

    Tomitsuka Yuma, Yamanashi Yuki, Zen Nobuyuki, Ohkubo Masataka, Yoshikawa Nobuyuki

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY ( IEEE )  29 ( 5 )   1301505 - 1301505   2019.08  [Refereed]

    Joint Work

    Web of Science DOI

  • Study on Single Flux Quantum Floating-Point Divider Based on Goldschmidt's Algorithm

    Akiyoshi Sanada, Yuki Yamanashi, Nobuyuki Yoshikawa

    IEEE Transactions on Applied Superconductivity ( IEEE )  Vol.29 ( 5 )   1301904 - 1301904   2019.03  [Refereed]

    Joint Work

    DOI

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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 】

  • Grant-in-Aid for Scientific Research(S)

    Project Year： 2019.06  -  2024.03 

  • Grant-in-Aid for Scientific Research(A)

    Project Year： 2019.04  -  2023.03  Investigator(s): NOBUYUKI YOSHIKAWA

  • 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 】

  • Library design and design tools for adiabatic quantum-flux-parametron logic circuits (ac-biased SFQ logic)

    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 Design Methodologies of Single Flux Quantum Integrated Circuits

    Funded Research on Investiment  

    Project Year： 2000  -  2001 

  • Research on Superconductor/Semiconductor Hybrid Circuits

    Cooperative Research within Japan  

    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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Social Contribution(Extension lecture) 【 display / non-display 】

  • 2020 International Symposium on Superconductor Electronics

    146th Committee on Superconductive Electronics, JSPS  （Yokohama Port Opening Memorial Hall, Yokohama） 

    2020.01
    　
    　

  • 13th Superconducting SFQ VLSI Workshop (SSV 2020)

    13th Superconducting SFQ VLSI Workshop   （Yokohama Port Opening Memorial Hall, Yokohama） 

    2020.01
    　
    　

    　View Summary

    The workshop aims at providing an opportunity to discuss key aspects of superconductor VLSI technologies. Latest results related to device fabrication, circuit design, function testing, and system integration will be exchanged.

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