Patents by Inventor Teruo Yubisui

Teruo Yubisui 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).

  • Pen
    Patent number: D310100
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: August 21, 1990
    Inventor: Teruo Yubisui
  • Fountain pen
    Patent number: D321009
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: October 22, 1991
    Assignee: Wecle Company Limited
    Inventor: Teruo Yubisui