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. 30, 2022
Filed:
Nov. 04, 2020
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Cataler Corporation, Kakegawa, JP;
Takahiro Nishio, Toyota, JP;
Shogo Shirakawa, Toyota, JP;
Masahide Miura, Toyota, JP;
Isao Chinzei, Toyota, JP;
Seiji Nakahigashi, Toyota, JP;
Norimichi Shimano, Toyota, JP;
Hiromi Togashi, Kakegawa, JP;
Hiroki Nihashi, Kakegawa, JP;
Mitsuyoshi Okada, Kakegawa, JP;
Takashi Onozuka, Kakegawa, JP;
Souta Akiyama, Kakegawa, JP;
Isao Naito, Kakegawa, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
CATALER CORPORATION, Kakegawa, JP;
Abstract
The present disclosure relates to an exhaust gas control catalyst including a base and a catalyst coating layer having a two-layer structure on the base. The catalyst coating layer includes a lower layer on the base, and an upper layer on the lower layer. The upper layer of the catalyst coating layer contains Rh particles in which a mean particle diameter measured by observation using a transmission electron microscope is 1.0 nm or more and 2.0 nm or less and a particle-diameter standard deviation σ is 0.8 nm or less. A length of the upper layer from an end face on a downstream side in an exhaust gas flow direction falls within a range of 70% or more and 100% or less of a total length of the base.