发明名称 Golf club head
摘要 This invention provides a golf club head having a first viscoelastic body made of a first viscoelastic material and a second viscoelastic body made of a second viscoelastic material with a loss coefficient the temperature dependence of which is different from that of a loss coefficient of the first viscoelastic material.
申请公布号 US7611423(B2) 申请公布日期 2009.11.03
申请号 US20060434191 申请日期 2006.05.16
申请人 BRIDGESTONE SPORTS CO., LTD. 发明人 MATSUNAGA HIDEO;BAN WATARU;SHIMAZAKI HIDEO
分类号 A63B53/04 主分类号 A63B53/04
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