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:
Jul. 30, 2019
Filed:
Oct. 31, 2017
Bridgestone Sports Co., Ltd., Tokyo, JP;
Hideo Watanabe, Chichibushi, JP;
Tsuyoshi Nakajima, Chichibushi, JP;
Bridgestone Sports Co., Ltd., Minato-ku, Tokyo, JP;
Abstract
In a multi-piece solid golf ball which includes a core of at least one layer, a cover of at least one layer, and at least one intermediate layer interposed between the core and the cover, the cover is composed primarily of polyurethane and the following parameters are controlled within specific ranges: core deflection, melt flow rate of intermediate layer material, thickness of intermediate layer, thickness and Shore D hardness of cover, combined thickness of intermediate layer and cover, and the value of (Shore D hardness of cover material)−(Shore D hardness of intermediate layer material). This golf ball has a good, soft feel at impact and lowers the rate of spin on full shots, achieving a good distance.