Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masayoshi Nishio0
Date of Patent
October 28, 2008
0Patent Application Number
113425750
Date Filed
January 31, 2006
0Patent Citations Received
...
Patent Primary Examiner
Patent abstract
A golf club head includes a face including a bulge formed at the center of a backside thereof and having a thickness of 2.0 or more times the thickness of the thinnest part, and a plurality of ribs extended from the bulge toward a circumference of the face. Six or more ribs are provided as the plural ribs and an angle θ(°) formed between extension directions of a respective pair of adjoining ribs is less than 90°. The maximum thickness of the bulge is not more than 3.5 times the thickness of the thinnest part.
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