Patents by Inventor Soji Otabe

Soji Otabe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Oxide superconducting wire with reduced AC loss
    Patent number: 6631280
    Abstract: A low-loss oxide superconducting wire using a reversible phenomenon is disclosed. The oxide superconducting wire is formed with a metal-coated multi-filamentary superconductor having a plurality of superconducting filaments in a matrix, in which d≦2 &mgr;m  (1), and d/(2&lgr;0′)≦1  (2), where d represents the size of the superconducting filament, and &lgr;0′ represents penetration depth of Campbell's a.c. magnetic field.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: October 7, 2003
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Soji Otabe, Teruo Matsushita, Jun Fujikami, Kazuya Ohmatsu