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:
May. 17, 2011
Filed:
Oct. 31, 2007
Hideo Matsunaga, Chichibu, JP;
Makoto Kubota, Tokyo, JP;
Masaomi Hiruta, Tokyo, JP;
Bridgestone Sports Co., Ltd., Tokyo, JP;
Abstract
A golf club headhas a face part, a crown part, a sole part, a side part, and a hosel part, which are formed of titanium or a titanium alloy. The golf club headis formed by integrating a head bodyand a face platewith each other by welding such as laser welding or plasma welding. A thick partis provided only in the central portion in the toe-heel direction of the cross corner portion between the face partand the sole part. The width in the toe-heel direction of the thick partis 20 mm or narrower. Therefore, the golf club head in accordance with the present invention can increase a carry on average even if being used by an amateur golfer who is prone to hit a ball by varied hit points across the clubface.