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:
Mar. 26, 2002
Filed:
Oct. 19, 1999
Kazunari Yoshida, Akashi, JP;
Keiji Moriyama, Akashi, JP;
Sumitomo Rubber Industries, Ltd., Kyogo-ken, JP;
Abstract
A Golf ball retaining high coefficient of restitution inherent in solid golf balls and having excellent shot feeling is disclosed. A multi-piece golf ball comprising: an inner core which is positioned in a central part of the golf ball, and has a JIS-C hardness of 75 or smaller; an outer core which encloses the inner core; an outer cover which is positioned in a surface part of the golf ball; and an inner cover which is placed on the inside of the outer cover, and has a JIS-C hardness of 80 or larger, wherein a JIS-C hardness of the outer core is smaller than that of the other components, and a JIS-C hardness of the outer cover is larger than that of the other components.