Abstract: A golf club head has a recess in a striking face and annular groove formed around the recess. A metal layer is fitted in the recess and an annular resin layer is formed in the annular groove to surround the metal layer. Then preparatory work for plating the whole head can be done quickly, and club heads after treated with plating may be of excellent quality, resulting in lower cost.

Abstract: A method for manufacturing golf club putter heads includes four steps, 1. forming a recess in a striking face of a club putter head, 2. adhering a decorative plate with a name or pattern in the recess, 3. pouring epoxy resin solution in said recess and letting it dry up to form an insert block, 4. grinding the upper surface of the decorating plate and the insert block flush with the striking face of the putter head. Then the name or pattern may not wear or disappear even if hit by golf balls for a long period of time.

Abstract: A golf club head includes a head body having a front flat surface as a striking face and a hollow room formed behind the front surface and a rear cap. The rear cap is pushed in the hollow room contacting with an annular edge of the hollow room, fixedly closed on the opening of the hollow room, and welded together with the head body. Then liquid non-metal material is filled in a hollow pinched layer formed between the rear cap and the hollow room, becoming a buffer block after cooled. The buffer block has a proper softness and hardness, absorbing vibration of a ball to give stability to the golf club when the ball is hit by the golf club head.

Abstract: A golf club head improved in its center of gravity has its center of gravity of the face arranged to be located at a point of more than a half height of the face.