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. 07, 2001
Filed:
Dec. 15, 1998
Applicant:
Inventor:
Norio Matsumoto, Fukushima-ken, JP;
Assignee:
Fujikura Rubber Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B 5/310 ;
U.S. Cl.
CPC ...
A63B 5/310 ;
Abstract
A golf club shaft made of a composite of a fiber material and a synthetic resin material, wherein the fiber material includes triaxial fabric layers which are located at least on the butt end side and the tip end side of the golf club shaft. Either the fiber density, the kind of the fiber, the physical property of the fiber, or a combination of two or more thereof, of yarn paths of three directions that form the triaxial fabric layers is varied with respect to the longitudinal axis of the shaft in accordance with a required specification of the shaft.