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:
Jul. 18, 2000
Filed:
Aug. 06, 1998
Applicant:
Inventors:
Masahide Onuki, Miki, JP;
Tetsuo Yamaguchi, Nishinomiya, JP;
Haruyoshi Minamiguchi, Nishinomiya, JP;
Akio Ohnishi, Kakogawa, JP;
Akihisa Inoue, Sendai-shi, JP;
Assignees:
Sumitomo Rubber Industries, Inc., Kobe, JP;
Other;
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
473324 ; 473342 ; 473349 ;
Abstract
In a golf club head having a face body, the face body is composed of a hybrid of an amorphous phase layer and a crystal phase layer. The crystal phase layer is disposed on a reverse face side of a face. And, thickness of the face body is 0.5 mm to 5.0 mm, thickness of the amorphous phase layer is, on average in whole area of the face body, more than 50% of the thickness of the face body, and thickness of the crystal phase layer is arranged to be 0.01 mm to 3.0 mm.