Patents by Inventor Masahumi Tsukuda

Masahumi Tsukuda 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).

  • Patent number: D418158
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: December 28, 1999
    Assignees: Plantec Architects, Seiko Instruments Inc.
    Inventors: Kazuhiro Aihara, Masahumi Tsukuda