Patents by Inventor Yasunori Ishizuka

Yasunori Ishizuka 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: D295367
    Type: Grant
    Filed: August 22, 1986
    Date of Patent: April 26, 1988
    Assignee: Ryobi Ltd.
    Inventors: Yasunori Ishizuka, Tosiaki Saito