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:
Feb. 24, 2015
Filed:
May. 30, 2013
Dunlop Sports Co. Ltd., Kobe-shi, Hyogo, JP;
Kazuyoshi Shiga, Kobe, JP;
Yasuo Naito, Kobe, JP;
Dunlop Sports Co. Ltd., Kobe, JP;
Abstract
A shafthas a plurality of full length layers s, s, and sto s. The full length layers have full length bias layers sand s, and full length straight layers s, s, and s. The full length straight layers s, s, slocated outside the full length bias layers sand sinclude a novolac-containing layer. In the novolac-containing layer, a content Rn of the novolac type epoxy resin is 3% by mass or greater and 19% by mass or less. If an average specific gravity of the novolac-containing layers constituting the full length straight layers is defined as S, and an average specific gravity of the full length bias layers and inside of the full length bias layers is defined as S, the specific gravity Sis greater than the specific gravity S