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:
Feb. 11, 2020
Filed:
Mar. 07, 2017
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Takashi Nakamura, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, JP;
Abstract
A clubincludes a head, a shaftand a grip. A club length Lis 45 inches or greater and 48 inches or less. A ratio (Wh/Wc) of a head weight Wh to a club weight Wc is equal to or greater than 0.71. A moment of inertia Ix about an axis of a swing is equal to or less than 6.90×10(kg·cm). However, when the club weight is defined as Wc (kg); an axial-directional distance between a grip end and a center of gravity of the club is defined as Lc (cm); and a moment of inertia about the center of gravity of the club is defined as Ic (kg·cm), the moment of inertia Ix (kg·cm) is calculated by the following formula (1).×(+60)  (1)