Invention Grant
- Patent Title: Golf club head
- Patent Title (中): 高尔夫球杆头
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Application No.: US12787899Application Date: 2010-05-26
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Publication No.: US08435137B2Publication Date: 2013-05-07
- Inventor: Tomoya Hirano
- Applicant: Tomoya Hirano
- Applicant Address: JP Kobe
- Assignee: SRI Sports Limited
- Current Assignee: SRI Sports Limited
- Current Assignee Address: JP Kobe
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2009-128085 20090527
- Main IPC: A63B53/04
- IPC: A63B53/04

Abstract:
A hollow golf club head is disclosed, wherein a front member including a face portion and a hosel portion of the club head is made of a material having a specific gravity ρ1; a rear member forming a backmost point of the club head is made of a material having a specific gravity ρ2; and an intermediate member extending annularly through in a crown portion, a sole portion and a sidewall portion of the head is made of a material having a specific gravity ρ3; and the specific gravity ρ3 is more than the specific gravity ρ1 which is more than the specific gravity ρ2.
Public/Granted literature
- US20100304888A1 GOLF CLUB HEAD Public/Granted day:2010-12-02
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