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:
Apr. 21, 2015
Filed:
May. 20, 2013
Sri Sports Limited, Kobe-shi, Hyogo, JP;
Kazuhiko Isogawa, Hyogo, JP;
Keiji Ohama, Hyogo, JP;
Yoshiko Matsuyama, Hyogo, JP;
Seiichiro Endo, Hyogo, JP;
Dunlop Sports Co., Ltd., Kobe, JP;
Abstract
Golf ballhas spherical core, coversituated on the external side of the core, and paint layersituated on the external side of the cover. The coverhas a Shore D hardness of no greater than 61. The paint layerhas a Martens hardness of no greater than 2.0 mgf/μm. The base polymer of the paint layeris a polyurethane obtained by a reaction of a polyol with a polyisocyanate. The polyisocyanate contains a buret-modified form of hexamethylene diisocyanate. The coverhas a thickness of 0.3 mm or greater and 1.0 mm or less. The paint layerhas a thickness of 5 μm or greater and 40 μm or less.