Patents by Inventor Zenichi Oknuki

Zenichi Oknuki 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: D315212
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: March 5, 1991
    Assignee: Pigeon Co., Ltd.
    Inventor: Zenichi Oknuki