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:
Sep. 23, 2014
Filed:
Sep. 13, 2010
Hirotaka Nakamura, Kobe, JP;
Keiji Ohama, Kobe, JP;
Seiichiro Endo, Kobe, JP;
SRI Sports Limited, Kobe, JP;
Abstract
Golf ballhas spherical core, surrounding layersituated on the external side of the core, mid layersituated on the external side of the surrounding layer, coversituated on the external side of the mid layer, and paint layersituated on the external side of the cover. The mid layerhas a thickness Tm of 0.1 mm or greater and 1.2 mm or less. The ratio (Tc/Tm) of the thickness Tc of the coverto the thickness Tm of the mid layeris no greater than 0.50. The coverhas a Shore D hardness Hc of no greater than 35. The Shore D hardness Hm of the mid layeris greater than the Shore D hardness Hc of the cover. The base material of the surrounding layeris an ionomer resin. The base material of the mid layeris a polyurethane. The base material of the coveris a polyurethane.