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:
Aug. 11, 2020
Filed:
Mar. 13, 2017
Cataler Corporation, Shizuoka, JP;
Cataler Corporation, Shizuoka, JP;
Abstract
An exhaust gas purifying catalyst according to the present invention is provided with a base materialand a catalyst-coated layer. The catalyst-coated layeris provided with a lower layerand an upper layer. The upper layercontains Rh and/or Pt as a noble metal catalyst. The lower layercontains Pd as a noble metal catalyst. The lower layeris provided with a front-stage lower layerpositioned on an upstream side and a rear-stage lower layerpositioned on a downstream side. The front-stage lower layeris a Ce-free layer that does not contain a Ce-containing oxide. The rear-stage lower layeris a Ce-containing layer that contains a Ce-containing oxide with a pyrochlore structure.