Patent ID: 6899643

Claim:
A golf ball comprising a large number of dimples on a surface thereof, wherein a percentage of 20% or more compared to a total number of the dimples has the following characteristics: a number of the dimples in which a first curved surface is provided from a position placed downward by 85% of a depth to a position placed downward by 100% of the depth in a direction of the depth from a dimple edge and a second curved surface is provided from a position placed downward by 20% of the depth to a position placed downward by 50% of the depth in the direction of the depth from the dimple edge, and a ratio (R 1 /R 2 ) of a radius of curvature R 1 of the first curved surface to a radius of curvature R 2 of the second curved surface is 5 to 55.