Patents by Inventor Takao Kurashima

Takao Kurashima 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: 5411255
    Abstract: In a metallic golf club head provided with a hollow chamber portion therein, a sheet body having vibration restraining characteristics or a coating material having vibration restraining characteristics is applied to an inner surface portion of a crown portion or other similar portion which is small in thickness. The sheet body or the coating material is 0.05 or above in the loss factor thereof.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: May 2, 1995
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Takao Kurashima, Takeshi Iwanaga