Patents by Inventor Shigeru Totsuka

Shigeru Totsuka 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).

  • AC power adapter
    Patent number: D432497
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: October 24, 2000
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Shigeru Totsuka, Kazumi Sato, Hideaki Mukai, Shinji Tsuyuki