Patents by Inventor Kotaro Tsutsumi

Kotaro Tsutsumi 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).

  • Vehicle tire
    Patent number: D287236
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: December 16, 1986
    Assignee: The Ohtsu Tire & Rubber Co., Ltd.
    Inventors: Toshio Yonekura, Kotaro Tsutsumi
  • Vehicle tire
    Patent number: D287349
    Type: Grant
    Filed: May 11, 1984
    Date of Patent: December 23, 1986
    Assignee: The Ohtsu Tire & Rubber Co., Ltd.
    Inventors: Toshio Yonekura, Kotaro Tsutsumi, Masaaki Minamitani
  • Vehicle tire
    Patent number: D305630
    Type: Grant
    Filed: May 6, 1987
    Date of Patent: January 23, 1990
    Assignee: The Ohtsu Tire & Rubber Co., Ltd.
    Inventors: Yuzi Shimamoto, Kotaro Tsutsumi
  • Vehicle tire
    Patent number: D313779
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: January 15, 1991
    Assignee: The Ohtsu Tire & Rubber Co., Ltd.
    Inventor: Kotaro Tsutsumi
  • Vehicle tire
    Patent number: D317584
    Type: Grant
    Filed: April 12, 1988
    Date of Patent: June 18, 1991
    Assignee: The Ohtsu Tire & Rubber Co., Ltd.
    Inventor: Kotaro Tsutsumi