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. 20, 2017
Filed:
Dec. 22, 2014
Applicant:
Dunlop Sports Co. Ltd., Kobe-shi, Hyogo, JP;
Inventors:
Kazuhiko Isogawa, Kobe, JP;
Kosuke Tachibana, Kobe, JP;
Assignee:
DUNLOP SPORTS CO. LTD., Kobe-shi, Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 37/00 (2006.01);
U.S. Cl.
CPC ...
A63B 37/0077 (2013.01); A63B 37/004 (2013.01); A63B 37/008 (2013.01); A63B 37/0031 (2013.01); A63B 37/0033 (2013.01); A63B 37/0039 (2013.01); A63B 37/0043 (2013.01); A63B 37/0044 (2013.01); A63B 37/0045 (2013.01); A63B 37/0076 (2013.01); A63B 37/0092 (2013.01);
Abstract
A golf ballincludes a core, a first mid layer, a second mid layer, a third mid layer, and a cover. A volume Vinm and a Shore D hardness Hinm of the first mid layer, a volume Vm and a Shore D hardness Hm of the second mid layer, a volume Voum and a Shore D hardness Houm of the third mid layer, a volume Vc and a Shore D hardness Hc of the cover, and a volume V of an entirety of the ball meet: (a) Hinm<Hm>Houm>Hc, (b) Vinm<Vm>Voum>Vc, (c) Hm−Hc>25, (d) (Vinm+Vm+Voum+Vc)/V<0.40, (e) Vm/Vc>1.50, and (f) (Vm*Hm)/(Vc*Hc)>3.0.