Patent Number: 6,251,031

Title: Multi-piece solid golf ball

Abstract: In a multi-piece solid golf ball comprising a solid core, an enclosure layer, an intermediate layer, and a cover, the core has a deflection of 2.5-7.0 mm under a load of 100 kg, the cover has a Shore D hardness of 53-65, and the Shore D hardness of the cover is higher than that of the intermediate layer. The intermediate layer and the cover are formed mainly of thermoplastic resins of the same type and either one contains an inorganic filler. The ball has improved resilience, durability and a soft pleasant feel.

Inventors: Hayashi; Junji (Chichibu, JP), Yamagishi; Hisashi (Chichibu, JP), Higuchi; Hiroshi (Chichibu, JP), Shimizu; Yasumasa (Chichibu, JP)

Assignee: Bridgestone Sports Co., Ltd.

International Classification: A63B 37/00 (20060101); A63B 037/06 ()

Expiration Date: 06/26/2018