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:
Mar. 09, 2004
Filed:
Oct. 19, 2001
Applicant:
Inventor:
Yuuji Yamaguchi, Tokyo, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C 1/500 ; B60C 1/506 ;
U.S. Cl.
CPC ...
B60C 1/500 ; B60C 1/506 ;
Abstract
A pneumatic radial tire having an aspect ratio of no more than 60% comprises at least one carcass ply composed of a main body portion and a turn-up portion, a stiffener made of a soft rubber stock and a hard rubber stock, and a reinforcing member extending at an outside of the turn-up portion in a widthwise direction of the tire through a cushion rubber, wherein at an inflation state of the tire under a given air pressure, a height of an outer end of the turn-up portion in the radial direction is no more than 0.33 times a section height of the carcass ply, and a thickness ratio (d2/d1) is within a range of 1.2-1.8.