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:
Dec. 05, 1989
Filed:
Oct. 11, 1988
Applicant:
Inventors:
Yoichi Nagasaki, Hamamatsu, JP;
Itsushi Nagamoto, Hamamatsu, JP;
Toyohiko Tadokoro, Hamamatsu, JP;
Masaki Fujimura, Hamamatsu, JP;
Assignee:
Yamaha Corporation, , JP;
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
2731 / ; 273169 ; 273173 ; 273 78 ;
Abstract
In constructioln of a golf club head, presence of a light FRP plate located in a through opening in the face side region allows free weight assignment to other regions for ideal inertia moment adjustment. A metal layer may be provided on the FRP plate to produce a locally laminated face side construction in which thickness ratio of components can be adjusted for better feel at shooting.