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:
Jul. 14, 2015
Filed:
Oct. 04, 2012
Applicant:
Dunlop Sports Co. Ltd., Kobe, Hyogo, JP;
Inventors:
Assignee:
DUNLOP SPORTS CO. LTD., Kobi-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 53/10 (2006.01); A63B 53/00 (2015.01); A63B 59/00 (2015.01); A63B 53/04 (2015.01);
U.S. Cl.
CPC ...
A63B 53/00 (2013.01); A63B 53/0466 (2013.01); A63B 59/0074 (2013.01); A63B 2053/0408 (2013.01); A63B 2209/023 (2013.01);
Abstract
Provided is a golf club having a head disposed at a front end of a shaft and a grip disposed at a back end of the shaft. A club weight is not smaller than 290 g, and a ratio (head weight/club weight) of a head weight to a club weight is not lower than 0.67 but not higher than 0.72. When a distance from the front end of the shaft to a center of gravity of the shaft is Land when a full length of the shaft is L, 0.55≦L/L≦0.67 is satisfied, and when a frequency of flexural vibration of the club is F, 240 cpm≦F≦280 cpm is satisfied.