Patents by Inventor Minoru Yoneyama

Minoru Yoneyama 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).

  • Golf club head
    Patent number: 4534558
    Abstract: A golf club head includes a core formed integrally with a sole of the head and extending upwardly therefrom in a triangular cross section. The core is formed of metal, such as soft iron or stainless steel. At least the front of the core is covered with fiber reinforced resin consisting principally of carbon fiber to form a clubface. The lower marginal edge of the clubface is formed flush with the sole.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: August 13, 1985
    Assignee: Yonex Kabushiki Kaisha
    Inventor: Minoru Yoneyama
  • Tennis racket
    Patent number: D254210
    Type: Grant
    Filed: February 7, 1978
    Date of Patent: February 12, 1980
    Assignee: Yonex Sports Kabushiki Kaisha
    Inventor: Minoru Yoneyama
  • Tennis racket
    Patent number: D258072
    Type: Grant
    Filed: August 4, 1978
    Date of Patent: January 27, 1981
    Assignee: Yonex Sports Kabushiki Kaisha
    Inventor: Minoru Yoneyama
  • Tennis racket frame
    Patent number: D273507
    Type: Grant
    Filed: April 28, 1981
    Date of Patent: April 17, 1984
    Assignee: Yonex Sports Kabushiki Kaisha
    Inventor: Minoru Yoneyama