Patents by Inventor Koya Hamamoto

Koya Hamamoto 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).

  • Automobile tire
    Patent number: D365071
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: December 12, 1995
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Koya Hamamoto, Shingo Yoshimi, Hiroshi Tokizaki, Izumi Kuramochi
  • Automobile tire
    Patent number: D377329
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: January 14, 1997
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Koya Hamamoto, Hiroshi Tokizaki, Izumi Kuramochi
  • Automobile tire
    Patent number: D377636
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: January 28, 1997
    Assignee: The Yokohama Rubber Co. Ltd.
    Inventors: Koya Hamamoto, Hiroshi Tokizaki, Izumi Kuramochi
  • Automobile tire
    Patent number: D378668
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: April 1, 1997
    Assignee: The Yokohama Rubber Co. Ltd.
    Inventors: Koya Hamamoto, Izumi Kuramochi, Hiroshi Tokizaki
  • Automobile tire
    Patent number: D379953
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: June 17, 1997
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Koya Hamamoto, Hiroshi Tokizaki, Izumi Kuramochi