Patents by Inventor Yasushi Sugioka

Yasushi Sugioka 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).

  • Patent number: 5037102
    Abstract: The present invention provides a golf club head at least the face portion of which is composed of composite materials characterized by aluminum or aluminum alloy either of which are combined with ceramics which are powdery. The golf club head has high strength, high hardness, high elasticity and a good wear resistance, and the face portion of the golf club head of the present invention shows little wear so that the durability of the club head is remarkably high. Moreover, by this invention it is easy to produce a large quantity of golf club heads so that the cost of production is largely diminished and so that a golf club head which is more practical is now available.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: August 6, 1991
    Assignees: Mizuno Corporation, Tokyo Yogyo Company
    Inventors: Tadahiro Fukayama, Yasushi Sugioka, Tomomi Soeda