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:
Aug. 06, 2013
Filed:
Dec. 27, 2010
Tomoaki Sunada, Toyota, JP;
Hideaki Ueno, Okazaki, JP;
Yuki Aoki, Nissin, JP;
Takeru Yoshida, Miyoshi, JP;
Masahiro Nakahara, Nissin, JP;
Masaaki Kawai, Kakegawa, JP;
Singo Sakagami, Kakegawa, JP;
Tomoaki Sunada, Toyota, JP;
Hideaki Ueno, Okazaki, JP;
Yuki Aoki, Nissin, JP;
Takeru Yoshida, Miyoshi, JP;
Masahiro Nakahara, Nissin, JP;
Masaaki Kawai, Kakegawa, JP;
Singo Sakagami, Kakegawa, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Cataler Corporation, Shizuoka, JP;
Abstract
A catalyst for purifying exhaust gases includes a substrate, and a catalytic layer. The catalytic layer includes a lower catalytic layer, a first upper catalytic layer, and a second upper catalytic layer. The lower catalytic layer being loaded with Pd and/or Pt is formed on the substrate. The first upper catalytic layer being loaded with Pd covers an upstream side of the lower catalytic layer, and exhibits a concentration of loaded Pd that falls in a range of from 4.5 to 12% by mass when the entirety of the first upper catalytic layer is taken as 100% by mass. The second upper catalytic layer being loaded with Rh covers a downstream side of the lower catalytic layer.