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:
Aug. 25, 2009
Filed:
Apr. 21, 2006
Applicants:
Hideaki Yoshikawa, Kobe, JP;
Kiyoto Maruoka, Kobe, JP;
Inventors:
Hideaki Yoshikawa, Kobe, JP;
Kiyoto Maruoka, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe-Shi, Hyogo-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C 15/00 (2006.01); B60C 15/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A heavy duty tire having an improved durability in bead portions and comprising a carcass ply of steel cords, the end portions of which are turned up around bead cores from the axially inside to the axially outside of the tire, and a core protecting rubber having a complex elastic modulus of 50 to 80 Mpa, at least a part of which is located in a core inside region which is located axially inward of the bead core and is sandwiched between the axially inner surface of the bead core and the steel cords of the turnup portion of the carcass ply.