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US 2011/0034262 A1Published application
Wood type golf club head
AssigneeBridgestone Sports Co., Ltd.
InventorsTakaharu Takechi, Yasunori Imamoto, Tomoe Watanabe
Life of this patent
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Abstract
A wood type golf club head according to this invention includes a face portion and a crown portion. A center-of-gravity position mark which indicates a point where the center of gravity of the wood type golf club head is projected to the crown portion is formed on the surface of the crown portion.
Claims12
A wood type golf club head including a face portion and a crown portion, wherein
- a center-of-gravity position mark which indicates a point where a center of gravity of the wood type golf club head is projected to the crown portion is formed on a surface of the crown portion.
A wood type golf club head including a face portion, wherein
- a center-of-gravity position mark which indicates a point where a center of gravity of the wood type golf club head is projected to the face portion is formed in the face portion by one of a blasting method and a YAG laser irradiation method.
A wood type golf club head including a face portion and a crown portion, wherein
- a first center-of-gravity position mark which indicates a point where a center of gravity of the wood type golf club head is projected to the crown portion is formed on a surface of the crown portion, and
- a second center-of-gravity position mark which indicates a point where the center of gravity is projected to the face portion is formed in the face portion.
Dependencies are inferred from the claim text.