Patents by Inventor Hiroshi Soyama

Hiroshi Soyama 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: D285285
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: August 26, 1986
    Assignee: Mitsuboshi Diamond Kogyo Kabushiki Kaisha
    Inventor: Hiroshi Soyama