Patents by Inventor Kouichiro Kurahashi

Kouichiro Kurahashi 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: 4568088
    Abstract: A golf club head of a wood-type golf club comprising a wooden club head body entirely reinforced by a wood-plastic combination, in which a predetermined thickness of a high density portion is impregnated with plastics at a percentage ranging from 10 to 60% by weight, lies adjacent to a front impact face of the club head, while the remainder portion is lower in density than the high density layer.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: February 4, 1986
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kouichiro Kurahashi