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:
Jul. 28, 2015
Filed:
Jan. 25, 2011
Sumiko Horisaka, Nagoya, JP;
Hiroki Fujita, Kasugai, JP;
Mika Murakami, Nagoya, JP;
Takashi Ito, Kasugai, JP;
Sumiko Horisaka, Nagoya, JP;
Hiroki Fujita, Kasugai, JP;
Mika Murakami, Nagoya, JP;
Takashi Ito, Kasugai, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A NOx sensorincludes a sensor deviceand a heatercapable of heating the sensor device. The sensor deviceincludes an inner pump electrodeand an outer pump electrodedisposed respectively on the inner side and the outer side of a solid electrolyte layer. The sensor devicedetects the concentration of NOx by introducing a gas to be measured into a first inner vacancy, pumping out oxygen in the gas to be measured from the inner pump electrodeto the outer pump electrode, introducing the gas to be measured, from which the oxygen has been pumped out, into a second inner vacancy, reducing the NOx in the gas to be measured, to thereby generate oxygen, and detecting the generated oxygen. A characteristic stabilizing layercovers the outer pump electrodeand is made of a porous body with a thickness of 10 to 200 μm and a thickness variation of 20% or less.