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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.:

US 12589526 B1

PDFFull Text
Date of Patent:
Mar. 31, 2026

Filed:

Apr. 03, 2024

Golf ball manufacturing method

Applicant:

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

Inventor:

Masaki Shiraishi, Sekishi, JP;

Assignee:

BRIDGESTONE SPORTS CO., LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Edmund H Lee

Int. Cl.
CPC ...
B29C 45/14 (2006.01); B29C 33/56 (2006.01); B29C 45/37 (2006.01); B29C 45/16 (2006.01); B29K 75/00 (2006.01); B29K 609/00 (2006.01); B29L 31/54 (2006.01);
U.S. Cl.
CPC ...
B29C 33/56 (2013.01); B29C 45/14073 (2013.01); B29C 45/14819 (2013.01); B29C 45/372 (2013.01); B29C 45/1671 (2013.01); B29K 2075/00 (2013.01); B29K 2609/00 (2013.01); B29K 2905/08 (2013.01); B29K 2909/04 (2013.01); B29L 2031/546 (2013.01);
Abstract

A method for manufacturing a golf ball having a core and a cover of at least one layer includes the step of molding the cover layer with a vertically separating two-part injection mold which has a spherical cavity and three or more support pins disposed so as to be capable of advancing and retracting in a direction perpendicular to a mold parting line, each support pin being housing in a pin housing hole having a nitrided inner peripheral sidewall. This method enables a golf ball cover material to be molded using an injection mold which, because a thick plating of hard chrome does not need to be applied to the inner peripheral sidewalls of the holes housing the support pins, is inexpensive and in which the pin housing holes have a good abrasion resistance.

Find Patent Forward Citations

Shiraishi, Masaki. (2026). Golf ball manufacturing method (U.S. Patent No. 12589526). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12589526

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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