Patents by Inventor Hirohisa Sugiyama

Hirohisa Sugiyama 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: D246627
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: December 13, 1977
    Inventor: Hirohisa Sugiyama