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:
May. 21, 1991
Filed:
May. 03, 1989
Applicant:
Inventors:
Masaki Fujimura, Shizuoka, JP;
Toyohiko Tadokoro, Shizuoka, JP;
Assignee:
Yamaha Corporation, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
2731 / ; 273169 ;
Abstract
In construction of a metallic gold club head having a rear side recess and a composite face situated in front of the rear side recess, the position of the composite face is biased towards the toe or heel depending on the number of the club head in order to assure stabilized course of travel traced by balls, increased distance of travel traced by balls and crisp feel at shot of balls.