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:
May. 21, 2002
Filed:
Jul. 08, 1999
Kazushige Sugimoto, Akashi, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A three-piece solid golf ball has excellent flight performance when hit by a driver or a long or a middle iron, and good spin performance when hit by a short iron or approach-shot. The three-piece solid golf ball has a core with a center and intermediate layer on the center; a cover on the core, the center with diameter 29 to 38 mm, hardness difference in JIS-C hardness at any point between its center to surface not more than 7, specific gravity lower than the intermediate layer, the surface hardness in JIS-C hardness of the intermediate layer being higher than the hardness determined at any point in the center; the difference between surface hardness of intermediate layer and hardness at any point in center being within 3° to 20° JIS-C, and cover having a Shore D hardness of less than 60.