Patent ID: 7635313
Filing Date: 2009-12-22
Classification: A63B

Abstract:
1. A golf ball comprising a center, a mid layer positioned outside of the center, a cover positioned outside of the mid layer and numerous dimples formed on a surface of the cover, wherein a product Pm of a volume Vm (cm provided that mean diameter of all the dimples is Da, a ratio (N1/N) of a number N1 of adjacent dimple pairs having a pitch of (Da/4) or less to a total number N of the dimples is equal to or greater than 2.70, a ratio (N2/N1) of a number N2 of the adjacent dimple pairs having a pitch of (Da/20) or less to the number N1 is equal to or greater than 0.50, and a ratio (N3/N1) of a number N3 of crossing adjacent dimple pairs to the number N1 is equal to or lesser than 0.06.