Patents by Inventor Sizuma Takeoka

Sizuma Takeoka 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: D421470
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: March 7, 2000
    Assignee: Myojyo Rubber Industry Co., Ltd.
    Inventor: Sizuma Takeoka