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. 05, 2013
Filed:
Mar. 10, 2008
Makoto Ishiyama, Kodaira, JP;
Makoto Ishiyama, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A pneumatic tire for motorcycles includes a carcass extending toroidally between a pair of bead portions, at least one ply of a belt layer installed outside thereof in the tire radial direction, and a tread portion radially outside the belt layer. In the tread portion, the 50% region of the developed width of the tread whose center is on the tire equatorial plane is a 'tread center portion', the 25% regions of the developed width of the tread region on either side of the tread center portion are a 'tread side portion', and each tread side portion is divided into three equal parts in the tire width direction defined from the tread end in order as regions A, B and C. The average modulus of elasticity in region B at 100% elongation at 40° C. is larger than the average modulus of elasticity in region A and in region C at 100% elongation at 40° C.