Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tomoya Hirano0
Date of Patent
May 22, 2007
0Patent Application Number
109681720
Date Filed
October 20, 2004
0Patent Citations Received
Patent Primary Examiner
0
Patent abstract
A golf club head having a face portion that hits a ball, which includes: a center thick portion; a portion of a varying thickness in annular form; and a peripheral thin portion provided around the portion of a varying thickness, where the peripheral thin portion of which the thickness is the smaller than that of the center thick portion. The peripheral thin portion includes a first thin portion and a second thin portion. The first thin portion is provided in at least one portion of a sole portion, a toe portion and a heel portion of the peripheral thin portion.
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