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.

Date of Patent:
May. 29, 2018

Filed:

Jul. 25, 2016
Applicant:

Dunlop Sports Co. Ltd., Kobe-shi, Hyogo, JP;

Inventor:

Akio Yamamoto, Kobe, JP;

Assignee:

DUNLOP SPORTS CO. LTD., Kobe-shi, Hyogo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 53/04 (2015.01); B22D 19/04 (2006.01); B22D 25/02 (2006.01); C22C 14/00 (2006.01); B22D 19/00 (2006.01); B22D 21/00 (2006.01);
U.S. Cl.
CPC ...
A63B 53/0466 (2013.01); B22D 19/00 (2013.01); B22D 19/04 (2013.01); B22D 21/005 (2013.01); B22D 25/02 (2013.01); C22C 14/00 (2013.01); A63B 2053/045 (2013.01); A63B 2053/0408 (2013.01); A63B 2053/0412 (2013.01); A63B 2053/0437 (2013.01);
Abstract

The present invention provides a golf club head that enables increasing the moment of inertia while also improving durability, and a manufacturing method for the same. The golf club head of the present invention includes a crown portion. The crown portion has a first region having a first thickness and multiple second regions having a second thickness that is smaller than the first thickness. The second regions are distributed in a radiating fashion so as to extend from an origin toward a peripheral portion of the crown portion excluding the face side, the origin being located within 15 mm of the center of gravity of the golf club head in the toe-heel direction and also being located in the vicinity of the face side in the face-back direction in a plan view.


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