Patents by Inventor Tstsuya Hayashi

Tstsuya Hayashi 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: 5009425
    Abstract: A golf club head in which a core buried in the interior of an outer shell of a fiber reinforced resin is molded out of a molten mixture of a thermoplastic resin and powder of a metal having a high specific gravity, and a method of manufacturing such golf club heads.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: April 23, 1991
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Takaharu Okumoto, Toshio Ninomiya, Tstsuya Hayashi