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:
Jul. 23, 2002
Filed:
Nov. 09, 2000
Applicant:
Inventors:
Kiyoto Maruoka, Hyogo, JP;
Noritoshi Nakagawa, Higashihiroshima-shi, Hiroshima, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B 3/700 ; A63B 3/704 ; A63B 3/706 ;
U.S. Cl.
CPC ...
A63B 3/700 ; A63B 3/704 ; A63B 3/706 ;
Abstract
A golf ball is composed of a core ( ) and a cover ( ) covering the core ( ). The core ( ) is composed of a cross-linked rubber whose Young's modulus lies in the range of 3O Mpa to 100 Mpa both inclusive and whose loss factor lies in the range of 0.01 to 0.45 both inclusive, when the Young's modulus and the loss factor are measured by a split Hopkinson's bar tester whose impact bar has a collision speed of 14.0 m/sec.