Invention Grant
- Patent Title: Golf ball
- Patent Title (中): 高尔夫球
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Application No.: US12132247Application Date: 2008-06-03
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Publication No.: US07708655B2Publication Date: 2010-05-04
- Inventor: Atsuki Kasashima , Atsushi Komatsu
- Applicant: Atsuki Kasashima , Atsushi Komatsu
- Applicant Address: JP Tokyo
- Assignee: Bridgestone Sports Co., Ltd.
- Current Assignee: Bridgestone Sports Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Main IPC: A63B37/06
- IPC: A63B37/06

Abstract:
The invention provides a golf ball composed of a core, a cover having a plurality of dimples on an outside surface thereof, and an intermediate layer disposed between the core and the cover. The intermediate layer is formed of a highly neutralized resin material, and has a Shore D hardness below 50 and a thickness of at least 1.7 mm but not more than 6.0 mm. The cover and the intermediate layer have a difference in Shore D hardness therebetween (cover Shore D hardness−intermediate layer Shore D hardness) of from 13 to 35. The cover and the intermediate layer have a combined thickness greater than 3 mm. The ball as a whole has a deflection, when compressed under a final load of 130 kgf from an initial load of 10 kgf, of at least about 2.0 mm but not more than about 4.0 mm. The golf ball, through a combination of dimples which do not cause a loss of lift in the low-velocity, low-spin rate region of the ball trajectory and a low-spin construction, travels farther and is therefore beneficial for competitive use by both skilled and amateur golfers.
Public/Granted literature
- US20090209368A1 GOLF BALL Public/Granted day:2009-08-20
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