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.:

US 8863801 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 21, 2014

Filed:

Sep. 08, 2006
Applicant:

Hideyuki Chiashi, Kodaira, JP;

Inventor:

Hideyuki Chiashi, Kodaira, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C 9/11 (2006.01); B60C 9/00 (2006.01); B60C 9/22 (2006.01); B60C 9/20 (2006.01);
U.S. Cl.
CPC ...
B60C 9/22 (2013.01); B60C 9/0007 (2013.01); B60C 9/2006 (2013.01);
Abstract

There is provided a pneumatic radial tire having favorable steering stability required as a high performance radial tire designed for high performance cars, durability and good cost performance. The pneumatic radial tire is framed by a carcasstoroidally extending between a pair of bead portionsand has at least two layers of crossing belt layers() formed by rubberizing steel cords and disposed around an outside of a crown portion thereof in a radial direction. The steel cord has a single strand structure or a core-single layer sheath structure composed of six to ten steel wires of 0.10 to 0.20 mm in diameter, a number of driven steel cords is 40 cords/50 mm or more and a distance between the adjacent steel cords within the belt layer is 0.3 mm or more.


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