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:
Jun. 10, 2003
Filed:
Aug. 31, 2000
Applicant:
Inventors:
Satoshi Iwami, Kobe, JP;
Hidenori Hiraoka, Kobe, JP;
Akira Kato, Kobe, JP;
Masatoshi Yokota, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B 3/712 ; A63B 3/714 ; A63B 3/706 ; A63B 3/700 ;
U.S. Cl.
CPC ...
A63B 3/712 ; A63B 3/714 ; A63B 3/706 ; A63B 3/700 ;
Abstract
A golf ball which produces high spin rate and accordingly readily stops even when being shot from a rough or in the rain is provided. Such a golf ball is constituted of a core and a cover and the cover has a loss tangent of 0.15 to 0.70 at −10° C. in a temperature distribution curve for dynamic viscoelasticity measured in a tensile mode under conditions of temperature increasing rate of 4° C./min, frequency of 10 Hz and initial strain of 1.0 mm.