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:
Jul. 16, 2002
Filed:
Nov. 30, 1998
Applicant:
Inventors:
Takahiro Kurokawa, Hiroshima, JP;
Akihide Takami, Hiroshima, JP;
Makoto Kyogoku, Hiroshima, JP;
Hideharu Iwakuni, Higashihroshima, JP;
Kenji Okamoto, Hiroshima, JP;
Hirosuke Sumida, Hiroshima, JP;
Kenichi Yamamoto, Higashihroshima, JP;
Hiroshi Murakami, Hiroshima, JP;
Hiroshi Yamada, Hatsukaichi, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 2/106 ; B01J 2/114 ;
U.S. Cl.
CPC ...
B01J 2/106 ; B01J 2/114 ;
Abstract
An exhaust gas emission control catalyst includes an under catalyst layer containing at least one of barium and lanthanum and an over catalyst layer containing an agent for absorbing water in a gas, at least one of the under catalyst layer and over catalyst layer containing catalytic metal.