Patent ID: 6705956
Filing Date: 2004-03-16
Classification: A63B

Abstract:
A four-piece solid golf ball comprising a core, and intermediate layer formed on the core, an outer layer formed on the intermediate layer and a cover covering the outer layer,wherein the core has a surface hardness in JIS-C hardness of 67 to 85, the intermediate layer has a JIS-C hardness of 80 to 95, the outer layer has a JIS-C hardness of 88 to 100, the cover has a JIS-C hardness of 85 to 100, the JIS-C hardness of the intermediate layer is higher than the surface hardness of the core, the JIS-C hardness of the outer layer is higher than the hardness of the intermediate layer, subtraction of the JIS-C hardness of the cover from that of the outer layer is âˆ’10 to 5, and the difference between the JIS-C hardness of the intermediate layer and that of the cover is 5 to 20.