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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.:

US 9550176 B1

PDFFull Text
Expired
Date of Patent:
Jan. 24, 2017

Filed:

Apr. 22, 2014

Exhaust gas purification catalyst and production method thereof

Applicant:

Mazda Motor Corporation, Hiroshima, JP;

Inventors:

Yoshiyuki Sato, Hiroshima, JP;

Hiroshi Yamada, Hiroshima, JP;

Koichiro Harada, Hiroshima, JP;

Takashi Baba, Hiroshima, JP;

Masahiko Shigetsu, Higashi-Hiroshima, JP;

Akihide Takami, Hiroshima, JP;

Assignee:

MAZDA MOTOR CORPORATION, Hiroshima, JP;

Attorney:

Studebaker & Brackett PC

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Michael Forrest

Int. Cl.
CPC ...
B01J 29/068 (2006.01); B01J 37/02 (2006.01); B01J 23/63 (2006.01); B01J 35/00 (2006.01); B01D 53/94 (2006.01); B01J 37/08 (2006.01); F01N 3/28 (2006.01); B01J 29/74 (2006.01); B01J 37/03 (2006.01); F01N 3/10 (2006.01); B01J 35/04 (2006.01);
U.S. Cl.
CPC ...
B01J 29/068 (2013.01); B01D 53/94 (2013.01); B01D 53/945 (2013.01); B01J 23/63 (2013.01); B01J 29/74 (2013.01); B01J 35/0006 (2013.01); B01J 35/04 (2013.01); B01J 37/02 (2013.01); B01J 37/0201 (2013.01); B01J 37/03 (2013.01); B01J 37/08 (2013.01); F01N 3/10 (2013.01); F01N 3/28 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/50 (2013.01); B01D 2255/902 (2013.01); B01D 2255/91 (2013.01); B01D 2258/014 (2013.01); F01N 2330/34 (2013.01); F01N 2370/04 (2013.01); Y02T 10/22 (2013.01);
Abstract

This catalyst includes a lower catalytic layerhaving catalytic ability to oxidize HC and CO and an upper catalytic layerhaving catalytic ability to reduce NO. The lower catalytic layercontains Pt and Pd acting as catalytic metals, zeolite, a Ce-containing oxide, and activated alumina, and the upper catalytic layercontains activated alumina loading an Rh-doped Ce-containing oxide and an NOstorage material.

Find Patent Forward Citations

Sato, Yoshiyuki. (2017). Exhaust gas purification catalyst and production method thereof (U.S. Patent No. 9550176). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9550176

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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