Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiromasa Tsunashima0
Masahide Onuki0
Date of Patent
November 22, 2022
0Patent Application Number
171025780
Date Filed
November 24, 2020
0Patent Citations
Patent Citations Received
Patent Primary Examiner
CPC Code
A golf club head has a hollow therein and comprises a face portion, a crown portion and a sole portion. The face portion comprises a central zone including a face center, and a peripheral zone surrounding the central zone. Each of the central zone and the peripheral zone has a flexural stiffness defined by E×t
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