US Patent 7549933 Golf club head

A hollow golf club head having a face portion, a crown portion, a sole portion, a side portion and a hosel portion, comprises a metal component made of a metal material, and a resin component made of a fiber reinforced resin, wherein the metal component comprises a face plate forming at least a part of the face portion, and a sole plate forming at least a part of the sole portion, and the resin component comprises a crown plate forming at least a part of the crown portion. A tubular part of the hosel portion into which a club shaft is inserted is formed (a) integrally with the metal component or (b) separately from the metal component and the resin component.