The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 31, 2005

Filed:

Apr. 30, 2001
Applicants:

Mototaka Iwata, Osaka, JP;

Kenji Onoda, Osaka, JP;

Koji Sakai, Osaka, JP;

Yukihiro Teranishi, Osaka, JP;

Takeshi Naruo, Osaka, JP;

Kazuhiro Ohmori, Osaka, JP;

Yoshihiro Fujikawa, Osaka, JP;

Inventors:

Mototaka Iwata, Osaka, JP;

Kenji Onoda, Osaka, JP;

Koji Sakai, Osaka, JP;

Yukihiro Teranishi, Osaka, JP;

Takeshi Naruo, Osaka, JP;

Kazuhiro Ohmori, Osaka, JP;

Yoshihiro Fujikawa, Osaka, JP;

Assignee:

Mizuno Corporation, Osaka, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B053/04 ;
U.S. Cl.
CPC ...
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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