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:
Jan. 13, 2015
Filed:
May. 25, 2011
Masaaki Akamine, Hiroshima, JP;
Masahiko Shigetsu, Higashi-Hiroshima, JP;
Yasuhiro Ochi, Hiroshima, JP;
Yuki Murakami, Hiroshima, JP;
Masaaki Akamine, Hiroshima, JP;
Masahiko Shigetsu, Higashi-Hiroshima, JP;
Yasuhiro Ochi, Hiroshima, JP;
Yuki Murakami, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
An exhaust gas purification catalyst includes a catalytic layer containing a particle component A-1 and a particle component A-2 with different catalytic metal contents, each of which is composed of catalytic-metal-doped CeZr-based mixed oxide powder. The particle component A-1 having the lower catalytic metal content is supported on a particle component B composed of Zr-based-oxide-supported alumina powder, and the particle component A-2 having the higher catalytic metal content is supported on a particle component C composed of CeZr-based mixed oxide powder in which catalytic metal is not solid-dissolved.