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:
Oct. 24, 2017

Filed:

Mar. 31, 2016
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Shogo Shirakawa, Gotemba, JP;

Yui Kamada, Numazu, JP;

Tatsuya Miyazaki, Susono, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/94 (2006.01); F01N 3/08 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01); B01J 21/04 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01J 21/10 (2006.01); B01J 21/12 (2006.01); B01J 21/14 (2006.01); B01J 23/10 (2006.01); B01J 23/44 (2006.01); B01J 23/56 (2006.01); B01J 23/63 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 23/46 (2006.01); B01J 37/16 (2006.01); B01J 23/58 (2006.01); B01J 37/02 (2006.01);
U.S. Cl.
CPC ...
B01J 23/464 (2013.01); B01D 53/945 (2013.01); B01D 53/9422 (2013.01); B01J 23/10 (2013.01); B01J 23/58 (2013.01); B01J 23/63 (2013.01); B01J 35/002 (2013.01); B01J 35/006 (2013.01); B01J 35/0013 (2013.01); B01J 35/02 (2013.01); B01J 37/0203 (2013.01); B01J 37/024 (2013.01); B01J 37/0211 (2013.01); B01J 37/0213 (2013.01); B01J 37/16 (2013.01); F01N 3/0842 (2013.01); F01N 3/101 (2013.01); F01N 3/2803 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2042 (2013.01); B01D 2255/2047 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/30 (2013.01); B01D 2255/40 (2013.01); B01D 2255/407 (2013.01); B01D 2255/91 (2013.01); B01J 35/0093 (2013.01); B01J 37/0236 (2013.01); B01J 2523/00 (2013.01); F01N 2370/02 (2013.01);
Abstract

An object of the present invention is to provide an exhaust gas purification catalyst for purifying exhaust gas, in particular, fine composite-metal particles contained therein, and a method for producing the same; the exhaust gas purification catalyst according to the present invention includes fine composite-metal particles containing Rh and Pd, wherein, when the fine composite-metal particles in the exhaust gas purification catalyst are analyzed by STEM-EDX, the average ratio of the amount of Pd with respect to the total amount of Rh and Pd in the fine composite-metal particles is 1.7 atomic % or more and 24.8 atomic % or less.


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