Patents by Inventor Iwao Itoh

Iwao Itoh 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).

  • Over-head projector
    Patent number: D330040
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: October 6, 1992
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Toshihiko Watanabe, Iwao Itoh