Patents by Inventor Mitsue Shirai

Mitsue Shirai 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: D316521
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: April 30, 1991
    Assignee: Twin Bird Industrial Company Limited
    Inventor: Mitsue Shirai