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:
Nov. 18, 2014
Filed:
Nov. 04, 2011
Yoshiko Matsuyama, Kobe, JP;
Takahiro Sajima, Kobe, JP;
Keiji Ohama, Kobe, JP;
SRI Sports Limited, Kobe, JP;
Abstract
A golf ballincludes a core, a mid layer, and a cover. The coreincludes a centerand an envelope layer. The ratio (Do/De) of an amount of compressive deformation Do of the centerto an amount of compressive deformation De of the coreis equal to or greater than 1.5 but equal to or less than 2.5. The ratio (Do/Dc) of the amount of compressive deformation Do of the centerto an amount of compressive deformation Dc of the golf ballis equal to or greater than 1.8. The diameter of the centeris equal to or less than 20 mm. The difference (He−Ho) between a surface hardness He of the coreand a central hardness Ho of the centeris equal to or less than 40.