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.:
Date of Patent:
Sep. 11, 2012
Filed:
Oct. 28, 2009
Kinichi Iwachido, Aichi, JP;
Takayuki Onodera, Toyota, JP;
Masanori Ide, Nagoya, JP;
Hiroaki Ohhara, Anjo, JP;
Mariko Ono, Himeji, JP;
Akihisa Okumura, Himeji, JP;
Masao Hori, Himeji, JP;
Kinichi Iwachido, Aichi, JP;
Takayuki Onodera, Toyota, JP;
Masanori Ide, Nagoya, JP;
Hiroaki Ohhara, Anjo, JP;
Mariko Ono, Himeji, JP;
Akihisa Okumura, Himeji, JP;
Masao Hori, Himeji, JP;
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
International Catalyst Technology, Inc., Auburn Hills, MI (US);
Abstract
An exhaust gas purifying catalyst which is disposed in an exhaust pipe of an internal combustion engine, includes: a substrate; and a catalyst layer, supported in the substrate and including: noble metals including platinum (Pt) and palladium (Pd); a heat-resistant inorganic oxide; and a NOx trapping material. The exhaust gas purifying catalyst adsorbs NOx in an exhaust gas when an exhaust air-fuel ratio is in a lean state and desorbs and reduces the adsorbed NOx when the exhaust air-fuel ratio is in a stoichiometric state or a rich state. (Pt/Pd) which is a ratio of amount of the platinum (Pt) to amount of the palladium (Pd) is 0.7 or more and less than 1.0.