Patent ID: 6656060
Filing Date: 2003-12-02
Classification: A63B

Abstract:
A solid golf ball comprising a solid core and a cover of at least one layer;wherein each of a specific gravity of said solid core and a specific gravity of said cover is nearly equal to a value (S) of a relation expression given by: S=W/[(&pgr;/6)Ã—D3]â€ƒwhere W is a weight of said golf ball in a range of 45.1 to 45.9 g and D (cm) is a diameter of said golf ball, a surface hardness of said solid core is higher than a center hardness of said solid core by 8 to 20 in JIS-C hardness, a surface hardness of said golf ball is higher than a center hardness of said solid core by 20 to 45 in JIS-C hardness and a surface hardness of said golf ball is higher than a surface hardness of said solid core by 10 to 30 in JIS-C hardness, and a flexural amount of said golf ball, measured by applying a load of 98 to 1274N thereto, is in a range of 3.5 to 6.0 mm.