Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mototaka Iwata0
Kazuhiro Ohmori0
Kenji Onoda0
Koji Sakai0
Takeshi Naruo0
Yoshihiro Fujikawa0
Yukihiro Teranishi0
Date of Patent
May 31, 2005
0Patent Application Number
098456610
Date Filed
April 30, 2001
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The inventive golf club comprises a head of a metal having a face and a flexural range, defined in the face, where the quantity of flexure in a direction perpendicular to the face is at least 45% of the maximum quantity of vertical flexure of the face. The flexural range is arranged in coincidence with a hitting spot distribution range of a player in the face. Alternatively, a flexural range having a spring constant of at least 2 kN/mm and not more than 4 kN/mm is present in the face of the inventive golf club.
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