Patent ID: 7270614

Claim:
A multi-piece solid golf ball, comprising a core, an intermediate layer enclosing the core to form a sphere, and a cover enclosing the intermediate layer, and numerous dimples formed on a surface of the cover, wherein each component has a Shore D hardness, a Deflection amount, an initial velocity (in m/s) and a thickness (in mm), the Deflection amount being defined as an amount of deflection (in mm) under load of a spherical body incurred when the load is increased from an initial value of 98 N (10 kgf) to a final value of 1275 N (130 kgf), and the ball satisfies the following requirements (1) to (4), (11) & (12): (1) (Shore D hardness of the cover)—(Shore D hardness of the intermediate layer)>0, (2A) (initial velocity of the core)—(initial velocity of the ball)≧0, (3) 0.87 (Deflection amount of the sphere)/(Deflection amount of the core)≦0.97, (4) the total of the thickness of the intermediate layer and the thickness of the cover is up to 3.0 mm, (11) (Deflection amount of the golf ball)/(Deflection amount of the sphere)≦0.98, and (12) (Shore D hardness of core surface)—(Shore D hardness of core center)≧15, wherein the total number of the dimples is at least 280 and not more than 360, the ball has a coefficient of lift (CL) when hit of at least 0.165 at a Reynolds number of 70,000 and a spin rate of 2,000 rpm, and a coefficient of drag (CD) when hit of not more than 0.230 at a Reynolds number of 180,000 and a spin rate of 2,520 rpm.