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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 9115621 B1

PDFFull Text
Date of Patent:
Aug. 25, 2015

Filed:

Sep. 08, 2011

Metal particles, exhaust gas purifying catalyst comprising metal particles, and methods for producing them

Applicants:

Shogo Shirakawa, Gotenba, JP;

Naoto Nagata, Susono, JP;

Kimiyasu Ono, Susono, JP;

Daichi Sato, Susono, JP;

Inventors:

Shogo Shirakawa, Gotenba, JP;

Naoto Nagata, Susono, JP;

Kimiyasu Ono, Susono, JP;

Daichi Sato, Susono, JP;

Assignee:

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

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 23/58 (2006.01); F01N 3/08 (2006.01); B01D 53/94 (2006.01); B01J 23/46 (2006.01); B01J 23/52 (2006.01); B01J 23/63 (2006.01); B01J 23/66 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B01J 37/16 (2006.01); B22F 1/00 (2006.01); B22F 9/24 (2006.01); C22C 1/04 (2006.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
F01N 3/08 (2013.01); B01D 53/9413 (2013.01); B01J 23/464 (2013.01); B01J 23/52 (2013.01); B01J 23/63 (2013.01); B01J 23/66 (2013.01); B01J 35/002 (2013.01); B01J 35/006 (2013.01); B01J 35/0013 (2013.01); B01J 37/0211 (2013.01); B01J 37/16 (2013.01); B22F 1/0018 (2013.01); B22F 9/24 (2013.01); B82Y 30/00 (2013.01); C22C 1/0466 (2013.01); B01D 2255/106 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/9202 (2013.01);
Abstract

Provided are metal particles comprising an at least partial solid solution of rhodium and gold. Also provided is a method for producing metal particles comprising adding a boron-based reducing agent to a mixed solution containing a rhodium salt and a gold salt to produce the metal particles comprising an at least partial solid solution of rhodium and gold. Furthermore, provided are an exhaust gas purifying catalyst comprising the metal particles supported on a catalyst support and a method for producing the same.

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