Patents by Inventor Tokiko Imai

Tokiko Imai 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).

  • Pendulum for a clock
    Patent number: D312800
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: December 11, 1990
    Assignee: Seikosha Co., Ltd.
    Inventor: Tokiko Imai
  • Clock
    Patent number: D315686
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: March 26, 1991
    Assignee: Seikosha Co., Ltd.
    Inventor: Tokiko Imai
  • Clock
    Patent number: D316047
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: April 9, 1991
    Assignee: Seikosha Co., Ltd.
    Inventor: Tokiko Imai
  • Timer
    Patent number: D320167
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: September 24, 1991
    Assignee: Seikosha Co., Ltd.
    Inventor: Tokiko Imai