Patent ID: 7377864
Filing Date: 2008-05-27
Classification: A63B

Abstract:
1. A multi-piece golf ball comprising a core, an intermediate layer enclosing the core, and a cover layer which encloses the intermediate layer and has on an outside surface thereof a plurality of dimples, wherein the cover layer is harder than the intermediate layer; letting A be the thickness of the intermediate layer, B be the thickness of the cover layer and C be the diameter of the core, 65≧C/A≧30 and 65≧C/B≧30; and the ball has an initial velocity, as measured by a method set forth in the Rules of Golf using an initial velocity measuring apparatus of the same type as the USGA drum rotation-type initial velocity instrument, of at least 77.0 m/s, wherein the core has a diameter of at least 35.3 mm but not more than 38.7 mm.