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. 26, 2013
Filed:
Aug. 04, 2008
Shinichi Miyazaki, Kobe, JP;
Shinichi Miyazaki, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
The pneumatic tire of the present invention, in which a tread rubber, a sidewall rubber, and a breaker rubber each have an intrinsic volume resistivity of 1×10Ω·cm or more, a clinch rubber and a chafer rubber each have an intrinsic volume resistivity of 1×10Ω·cm or less, wherein the pneumatic tire has a first conductive layer that is disposed between a carcass ply, an edge portion of the breaker rubber and the sidewall portion, a second conductive layer that is in contact with the first conductive layer and is disposed between the tread rubber and the carcass, and a pen rubber layer that extends from the second conductive layer to a surface of the tread portion, wherein the first conductive layer, the second conductive layer, and the pen rubber layer each have an intrinsic volume resistivity of 1×10Ω·cm or less, the carcass ply contains a conductive fibrous material having an intrinsic volume resistivity of 1×10Ω·cm or less and has a structure that the carcass ply is in contact with the clinch portion, the chafer portion, and the first conductive layer.