发明名称 |
Golf club shaft, production method therefor, and golf club therewith |
摘要 |
A golf club shaft includes a base made of a metal material, a nickel plated layer formed on the base, a chrome plated layer formed on the nickel layer, and a coating layer formed on the chrome plated layer. The chrome plated layer has a surface roughness Ra of 0.1 to 0.3 μm and a thickness of 0.2 to 1 μm.
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申请公布号 |
US8357055(B2) |
申请公布日期 |
2013.01.22 |
申请号 |
US20090453666 |
申请日期 |
2009.05.18 |
申请人 |
NHK SPRING CO., LTD.;YATSUDA NARUKI |
发明人 |
YATSUDA NARUKI |
分类号 |
A63B53/12 |
主分类号 |
A63B53/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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