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.

Date of Patent:
Jun. 03, 2014

Filed:

Nov. 28, 2011
Applicants:

Satoshi Matsueda, Kakegawa, JP;

Akimasa Hirai, Kakegawa, JP;

Kenichi Taki, Kakegawa, JP;

Yuji Yabuzaki, Kakegawa, JP;

Inventors:

Satoshi Matsueda, Kakegawa, JP;

Akimasa Hirai, Kakegawa, JP;

Kenichi Taki, Kakegawa, JP;

Yuji Yabuzaki, Kakegawa, JP;

Assignee:

Cataler Corporation, Shizuoka, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 27/053 (2006.01); B01J 23/26 (2006.01); B01D 53/94 (2006.01); B01J 23/58 (2006.01); B01J 35/02 (2006.01); B01J 37/02 (2006.01);
U.S. Cl.
CPC ...
B01D 53/945 (2013.01); B01J 23/58 (2013.01); B01J 27/053 (2013.01); B01J 35/023 (2013.01); B01J 37/0215 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2042 (2013.01); B01D 2255/9022 (2013.01); B01D 2255/908 (2013.01); F01N 2370/02 (2013.01); F01N 2510/0684 (2013.01);
Abstract

An exhaust gas-purifying catalyst includes a substrate, and a catalytic layer facing the substrate and including a precious metal, alumina, an oxygen storage material, and a sulfate of an alkaline-earth metal having an average particle diameter falling within a range of 0.01 to 0.70 μm, the average particle diameter being obtained by observation using a scanning electron microscope. Another exhaust gas-purifying catalyst includes a substrate, and a catalytic layer formed on the substrate using slurry containing a precious metal, alumina, an oxygen storage material, and a sulfate of an alkaline-earth metal having an average particle diameter falling within a range of 0.01 to 0.70 μm, the average particle diameter being obtained by observation using a scanning electron microscope.


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