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.

Date of Patent:
Sep. 01, 2020

Filed:

Oct. 29, 2018
Applicant:

Bridgestone Sports Co., Ltd., Tokyo, JP;

Inventors:

Hideo Watanabe, Chichibushi, JP;

Akira Kimura, Chichibushi, JP;

Masanobu Kuwahara, Chichibushi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 37/06 (2006.01); A63B 37/00 (2006.01); B32B 1/00 (2006.01); B32B 3/30 (2006.01); B32B 27/08 (2006.01); B32B 27/40 (2006.01);
U.S. Cl.
CPC ...
A63B 37/0076 (2013.01); A63B 37/0012 (2013.01); A63B 37/0018 (2013.01); A63B 37/0019 (2013.01); A63B 37/0063 (2013.01); A63B 37/0064 (2013.01); A63B 37/0065 (2013.01); A63B 37/0068 (2013.01); A63B 37/0084 (2013.01); A63B 37/0096 (2013.01); B32B 1/00 (2013.01); B32B 3/30 (2013.01); B32B 27/08 (2013.01); B32B 27/40 (2013.01); B32B 2307/536 (2013.01);
Abstract

In a golf ball having a two-layer core consisting of an inner core layer and an outer core layer, one or more intermediate layer, and a cover serving as an outermost layer, the inner core layer and outer core layer are each formed primarily of a base rubber, the inner core layer has a diameter of at least 21 mm, the intermediate layer and the cover are each formed primarily of a resin material, and the overall core has a specific hardness profile. The golf ball has a high initial velocity while holding down the spin rate on full shots with a driver or long iron, thus enabling a good distance to be achieved. The ball also has a high controllability in the short game.


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