Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 21, 2012
Patent Application Number
12399708
Date Filed
March 6, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A golf club head 1 having an improved dischargeability of foreign matters such as water and mud caught in face line grooves and a sufficient frictional force with a golf ball generated when hitting the ball, the club head 1 comprising a ball hitting face 2 including a hitting surface 7 and at least one face line groove 8 formed in the hitting surface 7, wherein the hitting surface 7 includes a rough surface portion 7a having an arithmetic mean roughness Raf of 0.20 to 0.55 μm, and the surface of the face line groove 8 has an arithmetic mean roughness Ra1 smaller than the arithmetic mean surface roughness Raf of the rough surface portion 7a, and a method for producing the club head 1.
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