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US 2003/0114244 A1Published application
Golf club head
AssigneeBridgestone Sports Co., Ltd.
InventorHideo Matsunaga
Life of this patent
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Abstract
A hollow golf club head made of metal has a face portion made of a titanium alloy, a crown portion, a sole portion, a toe-side side portion, a back-side side portion, a heel-side side portion, and a hosel portion. Grooves are provided in the crown portion so as to extend in the direction connecting the heel side and the toe side. Ribs are provided in the sole portion so as to extend in the direction connecting the face portion and the back-side side portion.
Claims19
A hollow golf club head made of metal, the golf club comprising:
- a face portion;
- a sole portion;
- a toe-side side portion;
- a heel-side side portion;
- a back-side side portion;
- a crown portion;
- and
- a hosel portion,
- wherein a plurality of grooves are defined in the crown portion to extend from the toe-side side portion toward the heel-side side portion.
6 more elements
Dependencies are inferred from the claim text.