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.
Patent No.:
Date of Patent:
Dec. 03, 2013
Filed:
May. 09, 2011
Takeshi Naruo, Osaka, JP;
Tetsuya Kanayama, Osaka, JP;
Kazuya Ishida, Osaka, JP;
Takashi Kimura, Osaka, JP;
Yoshinobu Watanabe, Osaka, JP;
Takeshi Naruo, Osaka, JP;
Tetsuya Kanayama, Osaka, JP;
Kazuya Ishida, Osaka, JP;
Takashi Kimura, Osaka, JP;
Yoshinobu Watanabe, Osaka, JP;
Mizuno Corporation, Osaka, JP;
Abstract
A golf club having a value of L not less than 45.5 inches, with L representing a club length measured with a 60-degree method, includes a shaft, a grip attached to one end of the shaft, and a head attached to the other end of the shaft. A value of r/L is equal to or not smaller than 0.658 and equal to or not greater than 0.732, where r represents a distance from an upper end of the grip to the center of gravity of the golf club. Thus, a long-length golf club achieving an increased head speed can be obtained.