Invention Grant
US09555289B2 Golf ball 有权
高尔夫球

Golf ball
Abstract:
A golf ball has a large number of dimples on a surface thereof. The golf ball meets the following mathematical formula (I): 1.320≦L1≦1.420 (I), where L1 represents a ratio of a lift coefficient CL1 which is measured under conditions of a Reynolds number of 1.290×105 and a spin rate of 2820 rpm, relative to a lift coefficient CL2 which is measured under conditions of a Reynolds number of 1.290×105 and a spin rate of 1740 rpm.
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