发明名称 GOLF CLUB HEAD
摘要 <p>PROBLEM TO BE SOLVED: To provide a golf club head capable of producing a comfortable hitting sound. SOLUTION: The metal golf club head 1 has a face part 2 for hitting a ball and a hollow part (i) inside. At least one recessed groove 10 is formed on the inner surface 2i of the face part 2 facing the hollow part (i). The width of the recessed groove 10 is 0.15-1.5 mm and the depth of the groove is 0.15-1.0 mm.</p>
申请公布号 JP2002126135(A) 申请公布日期 2002.05.08
申请号 JP20000321331 申请日期 2000.10.20
申请人 SUMITOMO RUBBER IND LTD 发明人 TSUNODA MASAYA;ONUKI MASAHIDE
分类号 A63B53/04;(IPC1-7):A63B53/04 主分类号 A63B53/04
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