Patents by Inventor Tsutomu Koushiro

Tsutomu Koushiro 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).

  • Electrical contact
    Patent number: D594420
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: June 16, 2009
    Assignee: Iriso Electronics Co., Ltd.
    Inventor: Tsutomu Koushiro
  • Electrical contact
    Patent number: D595235
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: June 30, 2009
    Assignee: IRISO Electronics Co., Ltd.
    Inventor: Tsutomu Koushiro