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. 30, 2024
Filed:
Mar. 03, 2020
Applicant:
Cataler Corporation, Kakegawa, JP;
Inventors:
Tatsuya Ohashi, Kakegawa, JP;
Kohei Takasaki, Kakegawa, JP;
Assignee:
CATALER CORPORATION, Kakegawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 35/00 (2006.01); B01J 35/04 (2006.01); F01N 3/10 (2006.01); B01J 37/02 (2006.01);
U.S. Cl.
CPC ...
B01J 23/44 (2013.01); B01J 21/04 (2013.01); B01J 23/464 (2013.01); B01J 35/0006 (2013.01); B01J 37/0215 (2013.01); F01N 3/10 (2013.01); F01N 2510/0684 (2013.01);
Abstract
An exhaust gas purification catalyst device having a substrate, a first catalyst coating layer on the substrate, and a second catalyst coating layer on the first catalyst coating layer. The first catalyst coating layer includes inorganic oxide particles, palladium carried on the inorganic oxide particles, and a barium compound. The second catalyst coating layer includes alumina particles and rhodium carried by the alumina particles. The ratio (M/M) between the mass (M) of barium in the first catalyst coating layer and the mass (M) of rhodium in the second catalyst coating layer is 5.0-60.0 inclusive.