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:
Aug. 22, 2000
Filed:
Dec. 05, 1997
Applicant:
Inventors:
Katsuhiko Kosugi, Hamamatsu, JP;
Kazuhiro Tsuchiya, Hamamatsu, JP;
Toshiharu Hoshi, Hamamatsu, JP;
Yoshimi Iitake, Hamamatsu, JP;
Assignee:
Yamaha Corporation, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
473305 ; 473311 ;
Abstract
A wood or iron golf club head comprising a ball-striking part and a hosel which are formed separately and joined together into an integral unit, the hosel containing microscopic pores, thus having a lower material density compared to that of the ball-striking part.