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US 7,922,601 B2Granted
Golf club head
AssigneeBridgestone Sports Co., Ltd.
InventorsWataru Ban, Fumiaki Sato, Kozue Wada
Life of this patent
Estimating the term…
Abstract
A golf club head according to the present invention comprises a plurality of score lines on a face, and a stair-shaped portion comprising a plurality of steps formed on a side wall of the score line from a face side end of the side wall in a depth direction of the score line.
Claims12
A golf club head comprising:
- a plurality of score lines on a face, and
- a stair-shaped portion comprising a plurality of steps arranged on a side wall of said score line in the shape of stairs from a face side end towards a bottom end of the side wall,
- wherein said side wall includes said stair-shaped portion and a flat portion,
- said side wall includes one first edge and second edges,
- said first edge is formed between the face and said stair-shaped portion,
- each of said second edges is formed by each of said plurality of steps, and
- at least one of said second edges is not arranged on an extended line of said flat portion.
4 more elements
Dependencies are inferred from the claim text.