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. 21, 2009
Filed:
Dec. 04, 2001
Applicants:
Masafumi Nishitani, Tokyo, JP;
Masaei Tsurumaki, Niigata, JP;
Inventors:
Masafumi Nishitani, Tokyo, JP;
Masaei Tsurumaki, Niigata, JP;
Assignees:
Bridgestone Sports Co., Ltd., Tokyo, JP;
K. K. Endo Seisakushao, Niigata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 53/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A golf club includes a shaft and a metal head attached to the shaft. The metal head includes a plurality of metal pieces fixed together by means of laser welding. For example, a face member of the head is manufactured by laser welding three metal pieces; i.e., a center metal piece, an intermediate metal piece, and an outer metal piece.