Invention Grant
- Patent Title: Golf club head with grooves shallower than scorelines and surface film thickness
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Application No.: US14792749Application Date: 2015-07-07
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Publication No.: US09937389B2Publication Date: 2018-04-10
- Inventor: Tomonori Kitagawa , Wataru Ban
- Applicant: BRIDGESTONE SPORTS CO., LTD
- Applicant Address: JP Minato-ku, Tokyo
- Assignee: BRIDGESTONE SPORTS CO., LTD
- Current Assignee: BRIDGESTONE SPORTS CO., LTD
- Current Assignee Address: JP Minato-ku, Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2014-141762 20140709
- Main IPC: A63B53/04
- IPC: A63B53/04
Abstract:
A golf club head according to this invention is a wood type golf club head including a face portion, a crown portion, and a sole portion. A plurality of grooves are formed in the face portion. The depth of the plurality of grooves is less than 0.025 mm. A film having a thickness not more than the depth is formed on the face portion by a surface treatment.
Public/Granted literature
- US20160008677A1 GOLF CLUB HEAD Public/Granted day:2016-01-14
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