The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2019
Filed:
Apr. 09, 2018
Bridgestone Sports Co., Ltd., Tokyo, JP;
Hideo Watanabe, Chichibushi, JP;
Katsunori Sato, Chichibushi, JP;
Masanobu Kuwahara, Chichibushi, JP;
Bridgestone Sports Co., Ltd., Minato-ku, Tokyo, JP;
Abstract
In a multi-piece solid golf ball made up of, successively, a core, an intermediate layer and a cover having numerous dimples on the surface thereof, the intermediate layer is formed of a resin material and the cover is formed of a urethane resin material, each having a specific respective Shore D hardness. The ball has a specific (intermediate layer thickness)/(core diameter) value and a specific (cover thickness)/(core diameter) value, and the core has a specific deflection. The sphere consisting of the core encased by the intermediate layer has an initial velocity A and the core has an initial velocity B which together satisfy the condition A−B≥0 m/s. This golf ball provides an increased distance and has both a soft feel when played and a high durability to repeated impact.