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:
May. 09, 2006
Filed:
Feb. 18, 2005
Applicant:
Michio Hirayama, Kobe, JP;
Inventor:
Michio Hirayama, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C 15/06 (2006.01); B60C 15/00 (2006.01); B60C 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a pneumatic radial tire, in which rolling resistance is reduced and durability is improved without losing toe-chip resistance when assembling the rim. More specifically, the present invention relates to a pneumatic radial tire having a chafer comprising a rubber composition having complex modulus of 9 to 13 MPa measured under conditions of temperature of 70° C., frequency of 10 Hz and dynamic strain of ±2%, loss tangent of 0.08 to 0.11 and tensile elongation at break of at least 230% measured according to JIS-K6251.