Dept. of Electrical and Computer Engin., Yokohama National Univ.


Associate Professor





Email: nyoshi(at)
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Nobuyuki Yoshikawa received the B.E., M.E., and Ph.D. degrees in electrical and computer engineering from Yokohama National University, Japan, in 1984, 1986, and 1989, respectively. Since 1989, he has been with the Department of Electrical and Computer Engineering, Yokohama National University, where he is currently a Professor.

In 1996 he spent one year studying in the Cryoelectronics Group of University of California, Berkeley as a visiting researcher.

His research interests include superconductive devices and their application in digital and analog circuits. Up to now he has demonstrated high-speed operations of several large-scale superconducting circuits based on single-flux-quantum (SFQ) logic, which include SFQ microprocessors and floating-point units. He is also interested in single-electron-tunneling devices, quantum computing devices and cryo-CMOS devices.

He received the Superconductivity Science and Technology Award from the Forum of Superconductivity Science and Technology, Japan, in 2004, and the 146 Committee Award of the Japan Society for the Promotion of Science (JSPS) in 2000.

He is currently a Program Officer of the Research Center for Science Systems of the JSPS, and a chair of the Technical Group on Superconducting Electronics of the IEICE, Japan, and a chair of the Technical Committee on Metal and Ceramics of the IEE, Japan.

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