Patent ID: 7452283

Claim:
A putter-type golf club head comprising: a main body composed of a metal material, the main body having a striking face for impacting a golf ball, the striking face having a first milled pattern and a second milled pattern, the first milled pattern located in a central area of the striking face and the second milled pattern encompassing the central area, the second milled pattern different from the first milled pattern; an isolation layer having a first surface and a second surface disposed on the main body opposite of the front face; and a weight body disposed on the first surface of the isolation layer; wherein the first milled pattern comprises a plurality of milled parallel horizontal lines and the second milled pattern comprises a plurality of milled parallel vertical lines, and wherein each of the plurality of milled parallel horizontal lines of the first milled pattern has a depth greater than the depth of each of the plurality of milled parallel vertical lines of the second milled pattern.