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. 18, 1998
Filed:
Apr. 29, 1996
Applicant:
Inventors:
Akihide Takami, Hiroshima, JP;
Hideharu Iwakuni, Hiroshima, JP;
Makoto Kyogoku, Hiroshima, JP;
Hiroshi Murakami, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; B01D / ;
U.S. Cl.
CPC ...
502327 ; 502334 ; 502304 ; 502439 ; 502327 ; 502339 ; 422180 ;
Abstract
An exhaust gas emission control catalyst includes an under catalyst layer containing catalyst particles of platinum and rhodium and a crystalline metal silicate support for supporting the catalyst particles and an over catalyst layer, coated on the under catalyst layer, containing catalyst particles of palladium.