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:
Jul. 23, 2019
Filed:
Oct. 06, 2015
Cataler Corporation, Kakegawa-shi, Shizuoka, JP;
Tatsuya Ohashi, Kakegawa, JP;
Shingo Sakagami, Kakegawa, JP;
Tsuyoshi Ito, Kakegawa, JP;
Ryota Onoe, Kakegawa, JP;
Naoto Miyoshi, Toyota, JP;
Masahiko Takeuchi, Toyota, JP;
Akemi Sato, Toyota, JP;
CATALER CORPORATION, Kakegawa, JP;
Abstract
An exhaust gas purification device of the present invention is provided with: a substrate of wall flow structure having an inlet cell, an outlet cell and a porous partition wall; an upstream catalyst layer, provided inside the partition wall and disposed in an upstream portion of the substrate including an exhaust gas inflow end section; and a downstream catalyst layer, provided inside the partition wall and disposed in a downstream portion of the substrate including an exhaust gas outflow end section. The upstream catalyst layer and the downstream catalyst layer each contain a carrier and at least one noble metal from among Pt, Pd and Rh, supported on the carrier. The noble metal in the upstream catalyst layer and the noble metal in the downstream catalyst layer are different from each other.