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:
Nov. 06, 2012
Filed:
Nov. 17, 2010
Shigeru Nakatani, Kyoto, JP;
Yoshinori Kato, Kyoto, JP;
Tomomi Yamauchi, Tokyo, JP;
Yoshitaka Iida, Tokyo, JP;
Masato Koshikawa, Tokyo, JP;
Shigeru Nakatani, Kyoto, JP;
Yoshinori Kato, Kyoto, JP;
Tomomi Yamauchi, Tokyo, JP;
Yoshitaka Iida, Tokyo, JP;
Masato Koshikawa, Tokyo, JP;
Horiba, Ltd., Kyoto, Kyoto, JP;
Abstract
An object of this invention is to diminish a ratio of a concentration of NO in the dilution air to a concentration of NO in the measurement object gas diluted by the dilution air as much as possible by removing NO in a dilution air so that a measurement accuracy of a concentration of NO in a measurement object gas can be improved. A heaterthat applies heat to the dilution air, a Pd catalystand a Pt catalystare arranged in this order on a flow channel where a dilution air used for diluting the measurement object gas flows, and NO in the dilution air is oxidized to NOor reduced to Nby the Pd catalystand the Pt catalyst