The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 1997
Filed:
Jul. 17, 1995
Applicant:
Inventor:
Hirato Shimasaki, Tokyo, JP;
Assignee:
Bridgestone Sports Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
473349 ; 473350 ;
Abstract
The golf club head according to the present invention comprises a head body having a cavity formed in a rear face thereof, striking face portion having a thickness less than that of a heel and toe portions, respectively, to improve the moment of inertia thereof, and a rear insert, which is made of a material of which the specific gravity is smaller than that of the material of the heel and toe portions, provided in the cavity of the head body, behind at least the sweet spot on the striking face.