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. 11, 2014
Filed:
Sep. 15, 2011
Yoshiko Matsuyama, Kobe, JP;
Takahiro Sajima, Kobe, JP;
Keiji Ohama, Kobe, JP;
SRI Sports Limited, Kobe, JP;
Abstract
A golf ballincludes a spherical core, a mid layeroutside the core, and a coveroutside the mid layer. The coreincludes a spherical centerand an envelope layeroutside the center. At all points P included in a zone that extends over a distance range from equal to or greater than 1 mm to equal to or less than 15 mm from the central point of the core, the following mathematical formula is satisfied.−5<2−1<5 In the mathematical formula, Hindicates the JIS-C hardness at a point Plocated radially inward of each point P at a distance of 1 mm from the point P, and Hindicates the JIS-C hardness at a point Plocated radially outward of each point P at a distance of 1 mm from the point P.