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. 18, 2020
Filed:
Feb. 27, 2019
Applicant:
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Inventors:
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 53/04 (2015.01); A63B 71/06 (2006.01);
U.S. Cl.
CPC ...
A63B 53/0466 (2013.01); A63B 2053/0425 (2013.01); A63B 2053/0433 (2013.01); A63B 2053/0437 (2013.01); A63B 2071/0694 (2013.01); A63B 2209/00 (2013.01);
Abstract
A hollow golf club headcomprises a face portionwhich includes a club facefor striking a ball, and a main bodyextending rearward of the head from the face portion. The face Portionis made of a low-specific-gravity material having a specific gravity of 4.0 or less. The main bodyis provided in its face portionside with a low stiffness zonewhere the stiffness is locally reduced.