Patents by Inventor Takao Kumakoshi

Takao Kumakoshi 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).

  • Portable wireless telephone
    Patent number: D388431
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: December 30, 1997
    Assignee: Kokusai Electric Co., Ltd.
    Inventors: Tetsufumi Takayasu, Tatsuo Kuwayama, Takao Kumakoshi, Hiroshi Fujiwara