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:
Jun. 20, 2023
Filed:
May. 02, 2022
Koji Sugiura, Toyota, JP;
Takeshi Hirabayashi, Toyota, JP;
Akemi Satou, Toyota, JP;
Keisuke Murawaki, Kakegawa, JP;
Takaya Ota, Toyota, JP;
Masatoshi Ikebe, Kakegawa, JP;
Kohei Takasaki, Kakegawa, JP;
Takeshi Morishima, Kakegawa, JP;
Koji Sugiura, Toyota, JP;
Takeshi Hirabayashi, Toyota, JP;
Akemi Satou, Toyota, JP;
Keisuke Murawaki, Kakegawa, JP;
Takaya Ota, Toyota, JP;
Masatoshi Ikebe, Kakegawa, JP;
Kohei Takasaki, Kakegawa, JP;
Takeshi Morishima, Kakegawa, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
CATALER CORPORATION, Kakegawa, JP;
Abstract
The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end, a downstream end, and a porous partition wall defining a plurality of cells extending between the upstream end and the downstream end. The plurality of cells include an inlet cell opening at the upstream end and sealed at the downstream end, and an outlet cell adjacent to the inlet cell sealed at the upstream end and opening at the downstream end. The first catalyst layer is disposed on a surface of the partition wall in an upstream region. In a downstream region, the second catalyst layer is disposed inside the partition wall, and a second catalyst-containing wall including the partition wall and the second catalyst layer has a porosity of 35% or more.