Patents by Inventor Shigeru Kanemaru

Shigeru Kanemaru 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).

  • Security screw
    Patent number: D415676
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: October 26, 1999
    Assignee: Mampay Screw Works Ltd
    Inventors: Shigeo Negishi, Shigeru Kanemaru