Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tadashi Toya0
Date of Patent
August 13, 2019
0Patent Application Number
158820720
Date Filed
January 29, 2018
0Patent Citations Received
Patent Primary Examiner
Patent abstract
One object is to provide a golf club equipped with a shaft made of FRP, the golf club being excellent in swing feeling and ball-hitting feeling and capable of stabilizing directional accuracy in ball hitting. The golf club according to the present invention is characterized in that it includes a shaft made of a fiber-reinforced resin mounted to a head, and the shaft is formed so that a variation of a ratio between torsional rigidity and bending rigidity (GIp/EI) is 0.2 or less over an entire length thereof.
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