US Patent Issued to BRIDGESTONE SPORTS on July 29 for "Golf ball" (Japanese Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,413, issued on July 29, was assigned to BRIDGESTONE SPORTS Co. LTD. (Tokyo).

"Golf ball" was invented by Hideo Watanabe (Saitamaken, Japan) and Akira Kimura (Saitamaken, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a golf ball for professional golfers and skilled amateurs which has a single-layer core, a cover and at least one intermediate layer therebetween, the intermediate layer has a specific gravity of at least 1.05, the sphere the sphere obtained by encasing the core with the intermediate layer (intermediate layer-encased sphere) and the ball have a surface hardness relationship which satisfies the condition:(surface hardness of int...