Invention Grant
- Patent Title: Golf club head
- Patent Title (中): 高尔夫球杆头
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Application No.: US12238132Application Date: 2008-09-25
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Publication No.: US07824279B2Publication Date: 2010-11-02
- Inventor: Wataru Ban , Fumiaki Sato , Kozue Wada
- Applicant: Wataru Ban , Fumiaki Sato , Kozue Wada
- Applicant Address: JP Tokyo
- Assignee: Bridgestone Sports Co., Ltd
- Current Assignee: Bridgestone Sports Co., Ltd
- Current Assignee Address: JP Tokyo
- Agency: Paul, Hastings, Janofsky & Walker LLP
- Priority: JP2007-311438 20071130; JP2008-206384 20080808
- Main IPC: A63B53/04
- IPC: A63B53/04

Abstract:
This invention provides a golf club head including a plurality of score lines on a face. In the golf club head according to this invention, the angle between each side surface of the score lines and the face is 48° or more. Edges of the score lines are formed to be positioned within a second virtual circle with a radius of 0.011 inches, the second virtual circle being concentric with a first virtual circle which internally touches the side surface of the score line and the face with a radius of 0.010 inches.
Public/Granted literature
- US20090143166A1 Golf Club Head Public/Granted day:2009-06-04
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