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:
May. 05, 2026
Filed:
Feb. 15, 2024
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Takumi Kaneko, Kobe, JP;
Hikaru Nagakura, Kobe, JP;
Takehiko Hyodo, Kobe, JP;
Kazuyoshi Shiga, Kobe, JP;
Yuko Kujirai, Kobe, JP;
Hiroaki Tanaka, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Abstract
An object of the present disclosure is to provide a golf ball having lowered resilience while maintaining the hardness of the golf ball. The present disclosure provides a golf ball comprising a constituent member, wherein at least a part of the constituent member is formed from a cured product of a rubber composition containing (a) a base rubber, (b) a co-crosslinking agent and (c) a crosslinking initiator, (a) the base rubber contains (a1) a natural rubber and a grafting ratio of (b) the co-crosslinking agent in the cured product of the rubber composition ranges from 40 mass % to 80 mass %.