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:
Feb. 10, 2015
Filed:
Apr. 04, 2012
Yoshiko Matsuyama, Kobe, JP;
Yoshiko Matsuyama, Kobe, JP;
SRI Sports Limited, Kobe, JP;
Abstract
A coreof a golf ballincludes a centerand an envelope layerpositioned outside the center. The ratio of the volume of the coreto the volume of a phantom sphere of the golf ballis equal to or greater than 78%. The difference (He−Ho) between a JIS-C hardness He at the surface of the coreand a JIS-C hardness Ho at the central point of the coreis equal to or greater than 15 but equal to or less than 40. The difference (H−Ho) between a JIS-C hardness Hat a point Pthat is located radially outward of the boundary between the centerand the envelope layerand whose distance from the boundary is 1 mm and the JIS-C hardness Ho is equal to or greater than 0 but equal to or less than 2.