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. 21, 2012
Filed:
Mar. 02, 2007
Kazuya Kamino, Kobe, JP;
Seiichiro Endo, Kobe, JP;
Tsutomu Hirau, Kobe, JP;
SRI Sports Limited, Kobe-Shi Hyogo, JP;
Abstract
Golf ballhas a spherical center, a mid layercovering this center, a reinforcing layercovering this mid layer, and a covercovering this reinforcing layer. Base polymer of the mid layeris an ionomer resin. Base polymer of the coveris a thermoplastic polyurethane elastomer. The coverhas a thickness Tc of equal to or less than 1.2 mm, and particularly equal to or less than 0.8 mm. The difference (Ho−Hc) between the central hardness Ho of the centerand the hardness Hc of the coveris 1 or greater and 30 or less. The coverhas a hardness Hc of 15 or greater and 40 or less. The product (Tc·Hc) of the thickness Tc (mm) of the coverand the hardness Hc of the coveris equal to or less than 25.