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:
Jan. 20, 1998
Filed:
Jul. 25, 1996
Toshinori Nishimura, Hiratsuka, JP;
Masahiko Miyamoto, Hiratsuka, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
When a plurality of grooves extending from the toe side to the heel side are disposed in a plurality of upper to lower rows in a face of a wood type golf club head, these grooves are disposed on the lower portion side of the face and the upper portion side of the face is slicked without disposing the grooves. This arrangement can make a flying distance of a ball greater than by conventional golf club irrespective of rain or shine. In place of the construction wherein the upper portion side of the face is slicked, it is possible to employ the construction wherein the gaps between grooves disposed on the upper portion side of the face are greater than those between grooves disposed on the lower portion side, or the construction wherein each width of grooves disposed on the upper portion side of the face is smaller than that of grooves disposed on the lower portion side.