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:
Nov. 27, 2001
Filed:
Dec. 13, 1999
Applicant:
Inventors:
Toshinori Nishimura, Hiratsuka, JP;
Masahiko Miyamoto, Hiratsuka, JP;
Assignee:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A63B 5/304 ;
U.S. Cl.
CPC ...
A63B 5/304 ;
Abstract
A golf club head is disclosed, which comprises a hollow structure composed of a face portion constituting a ball hitting face, a crown portion and a sole portion each provided successively from the face portion, and a plurality of grooves provided in the face portion. Depths of the grooves are gradually changed in accordance with a position of the face portion.