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US 6,142,888 AGranted
Multi-piece solid golf ball
AssigneeBridgestone Sports Co., Ltd.
InventorsHiroshi Higuchi, Yasushi Ichikawa, Hisashi Yamagishi
Life of this patent
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Abstract
In a multi-piece solid golf ball comprising a solid core and a cover of at least two layers, one layer, preferably an inner layer, of the cover is formed mainly of a thermoplastic polyurethane elastomer having a JIS A hardness of 60-98 and a resilience of at least 40%. The golf ball is improved in spin properties, flight performance, feeling, durability, and mass-scale productivity.
Claims12
A multi-piece solid golf ball comprising a solid core and a cover of at least two layers, wherein
- any one layer of the cover is formed mainly of a thermoplastic polyurethane elastomer having a JIS A hardness of 60 to 98 and a resilience of at least 40%.
Dependencies are inferred from the claim text.