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:
Sep. 19, 2000
Filed:
May. 26, 1998
Applicant:
Inventors:
Takashi Takemoto, Higashihiroshima, JP;
Makoto Kyogoku, Hiroshima, JP;
Yuki Koda, Hiroshima, JP;
Akihide Takami, Hiroshima, JP;
Satoshi Ichikawa, Hiroshima, JP;
Hideharu Iwakuni, Hiroshima, JP;
Masahiko Shigetsu, Higashihiroshima, JP;
Kazunari Komatsu, Mihara, JP;
Assignee:
Mazda Motor Corporation, Hiroshima-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
4232135 ; 4232391 ;
Abstract
The active temperature of an exhaust gas cleaning catalyst is shifted to a higher temperature side when Al.sub.2 O.sub.3 and/or CeO.sub.2 is used as a co-catalyst and/or when an oxidation number of Pt or Ir which is used as the noble active component is plus four.