Patents by Inventor Tatsuo Hujiwara

Tatsuo Hujiwara 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).

  • Programmable controller
    Patent number: D287117
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: December 9, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Tsukasa Saiki, Nobuyuki Kajima, Ryouichi Abe, Tatsuo Hujiwara