发明授权
- 专利标题: Golf club head
- 专利标题(中): 高尔夫球杆头
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申请号: US11565868申请日: 2006-12-01
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公开(公告)号: US07815521B2公开(公告)日: 2010-10-19
- 发明人: Wataru Ban , Vinh-Duy Thai Nguyen
- 申请人: Wataru Ban , Vinh-Duy Thai Nguyen
- 申请人地址: JP Tokyo
- 专利权人: Bridgestone Sports, Co., Ltd.
- 当前专利权人: Bridgestone Sports, Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Paul, Hastings, Janofsky & Walker LLP
- 主分类号: A63B53/04
- IPC分类号: A63B53/04
摘要:
The present invention provides a golf club head comprising, a face, a plurality of score line grooves formed in the face, traces formed in the face by milling; and a pair of side surfaces of the score line groove including a first surface that is contiguous with the face and a second surface that is contiguous with the first surface in the depth direction of the score line groove. A first angle that is formed by each first surface of the pair of side surfaces is larger than a second angle that is formed by each second surface of the pair of surfaces. The face in which the traces are formed has the arithmetic mean deviation of the profile (Ra) of not less than 4.00 μm.
公开/授权文献
- US20080132351A1 GOLF CLUB HEAD 公开/授权日:2008-06-05
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