Patents by Inventor Tsuyoshi Oyanagi

Tsuyoshi Oyanagi 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).

  • Clock
    Patent number: D335631
    Type: Grant
    Filed: November 23, 1990
    Date of Patent: May 18, 1993
    Assignee: Seikosha Co., Ltd.
    Inventor: Tsuyoshi Oyanagi
  • Clock
    Patent number: D335632
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: May 18, 1993
    Assignee: Seikosha Co., Ltd.
    Inventors: Tsuyoshi Oyanagi, Seiji Odaka
  • Clock
    Patent number: D336858
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: June 29, 1993
    Assignee: Seikosha Co., Ltd.
    Inventor: Tsuyoshi Oyanagi
  • Clock with picture frame
    Patent number: D346966
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: May 17, 1994
    Assignee: Seikosha Co., Ltd.
    Inventors: Tsuyoshi Oyanagi, Itsuko Hirose
  • Clock
    Patent number: D346969
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: May 17, 1994
    Assignee: Seikosha Co., Ltd.
    Inventors: Seiji Odaka, Tsuyoshi Oyanagi
  • Clock
    Patent number: D347179
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: May 24, 1994
    Assignee: Seikosha Co., Ltd.
    Inventor: Tsuyoshi Oyanagi