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. 25, 2017
Filed:
Dec. 01, 2015
Applicant:
Dunlop Sports Co. Ltd., Kobe-shi, Hyogo, JP;
Inventor:
Hirotaka Nakamura, Kobe, JP;
Assignee:
DUNLOP SPORTS CO. LTD., Kobe-Shi, Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 53/10 (2015.01); A63B 60/42 (2015.01); A63B 53/12 (2015.01);
U.S. Cl.
CPC ...
A63B 53/10 (2013.01); A63B 60/42 (2015.10); A63B 53/12 (2013.01); A63B 2209/02 (2013.01); A63B 2209/023 (2013.01); A63B 2209/026 (2013.01);
Abstract
A shaftincludes at least two hoop layers sand s, at least one bias layer, and at least one straight layer. An interposition layer other than the hoop layer is present between every opposing hoop layers. An average thickness of the opposing hoop layers is defined as t, and a total thickness of the interposition layer is defined as T. The shaftsatisfies the following formula (1):≧1.9  (1).