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. 14, 2017
Filed:
Aug. 20, 2014
Mazda Motor Corporation, Hiroshima, JP;
Takashi Baba, Hiroshima, JP;
Hiroshi Yamada, Hiroshima, JP;
Koichiro Harada, Hiroshima, JP;
Yoshiyuki Sato, Hiroshima, JP;
Masahiko Shigetsu, Higashi-Hiroshima, JP;
Akihide Takami, Hiroshima, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
An exhaust gas purify catalyst includes a substrate (), an oxidation catalyst layer () formed on the substrate () and containing zeolite and at least one catalytic metal, an LNT layer () formed on the oxidation catalyst layer () and containing an NOstorage material and at least one catalytic metal, and an NOreduction layer () formed on the LNT layer () and containing Rh acting as a catalytic metal and at least one of alumina or zirconia, wherein the NOreduction layer () has a larger content of Rh than that in each of the oxidation catalyst layer () and the LNT layer ().