07294064 is referenced by 188 patents and cites 11 patents.

In a driver golf head (1) comprising a face (4) having a hitting surface, a sole (3) forming a lower portion, and a crown (5) forming an upper portion, the sole (3) is improved. The sole (3) in the position close to the face (4) was formed into an elastically deformable recess-projection shape, and part of the face (4) was formed into a projecting shape and integrated with the sole (3) to increase rigidity. Using a configuration with increased rigidity and decreased rigidity between the face (4) and sole to obtain an elastically deformable portion and providing a high-rigidity body (12) increased the repulsion force in the lower portion of the face and extended the traveling distance of the golf ball.

Title
Golf club
Application Number
11/482117
Publication Number
7294064 (B2)
Application Date
July 7, 2006
Publication Date
November 13, 2007
Inventor
Takayuki Ando
Tsubame
JP
Katsuhiro Kobayashi
Tsubame
JP
Masaei Tsurumaki
Tsubame
JP
Agent
Westerman Hattori Daniels & Adrian
Assignee
K K Endo Seisakusho
JP
IPC
A63B 53/04
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