US Patent 7559853 Golf club head and method for manufacturing the same

A golf club head and a manufacturing method therefor in which the coefficient of restitution can be easily adjusted to desirable values for example the upper limit specified by Golf the Rules without impairing the durability and the directional stability. The head comprises a face member having a ball striking club face, and a main member at the front of which the face member is disposed, wherein the face member is produced from a titanium alloy, and the main member is produced from another titanium alloy having a larger specific gravity than that of the face member's titanium alloy.