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:
Nov. 13, 2007
Filed:
Jul. 07, 2006
Masaei Tsurumaki, Tsubame, JP;
Katsuhiro Kobayashi, Tsubame, JP;
Takayuki Ando, Tsubame, JP;
K.K Endo Seisakusho, Niigata, JP;
Abstract
In a driver golf head () comprising a face () having a hitting surface, a sole () forming a lower portion, and a crown () forming an upper portion, the sole () is improved. The sole () in the position close to the face () was formed into an elastically deformable recess-projection shape, and part of the face () was formed into a projecting shape and integrated with the sole () to increase rigidity. Using a configuration with increased rigidity and decreased rigidity between the face () and sole to obtain an elastically deformable portion and providing a high-rigidity body () increased the repulsion force in the lower portion of the face and extended the traveling distance of the golf ball.