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:
Apr. 07, 2015

Filed:

Apr. 03, 2007
Applicants:

Jin Cho, Tochigi-ken, JP;

Tomotaka Hirota, Tochigi-ken, JP;

Kenji Tanikawa, Tochigi-ken, JP;

Inventors:

Jin Cho, Tochigi-ken, JP;

Tomotaka Hirota, Tochigi-ken, JP;

Kenji Tanikawa, Tochigi-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 23/10 (2006.01); F01N 3/10 (2006.01); B01D 53/94 (2006.01); B01J 23/00 (2006.01); B01J 23/63 (2006.01); B01J 35/10 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01);
U.S. Cl.
CPC ...
F01N 3/10 (2013.01); B01D 53/945 (2013.01); B01D 2255/10 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/407 (2013.01); B01D 2255/9022 (2013.01); B01D 2255/9025 (2013.01); B01D 2255/9027 (2013.01); B01J 23/002 (2013.01); B01J 23/63 (2013.01); B01J 35/10 (2013.01); B01J 35/1014 (2013.01); B01J 37/0018 (2013.01); B01J 37/0234 (2013.01); B01J 37/0244 (2013.01); B01J 2523/00 (2013.01); Y02T 10/22 (2013.01); Y10S 502/52712 (2013.01);
Abstract

An exhaust gas catalyst where the catalyst efficiency is improved by enhancing diffusion of the exhaust gas in a catalyst layer. An exhaust gas catalyst comprises at least a carrier and a plurality of layers formed on the carrier. At least one of the layers has pores therein, and at least one other layer has pores therein and contains, as catalyst components, a noble metal, alumina and a complex oxide mainly containing ceria, zirconia and one or more rare earth elements other than cerium.


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Cho, Jin. (2015). Exhaust gas catalyst and exhaust gas processing apparatus using same (U.S. Patent No. 8999252). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8999252

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