Patent ID: 7384351

Claim:
A golf ball comprising a resilient solid core and a resin cover which encloses the core and has on an outside surface thereof numerous circular dimples, the golf ball being characterized in that the cover has a maximum thickness of 0.5 to 1.5 mm and is made of a polyurethane elastomer having a Shore D hardness of 40 to 58; the total number of dimples on the cover is from 390 to 420, of which 40 to 80 are small-diameter dimples with a diameter of 2.0 to 2.7 mm; and the dimples are arranged so that total planar surfaces circumscribed by dimple edges which delineate boundaries between individual dimples and surrounding land areas that form an outermost surface of the ball account for 74 to 84% to an imaginary sphere defined by the surface of the ball having no dimples thereon; wherein an intermediate layer made of resin is disposed between the solid core and the cover, and the intermediate layer has a Shore D hardness of 45 to 65.