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. 28, 2018
Filed:
Jul. 31, 2017
Yoshinori Saito, Toyota, JP;
Masahide Miura, Toyota, JP;
Seiji Nakahigashi, Toyota, JP;
Hiromasa Suzuki, Toyota, JP;
Takahiro Suzuki, Kakegawa, JP;
Kosuke Iizuka, Kakegawa, JP;
Minoru Ito, Kakegawa, JP;
Ryota Nakashima, Kakegawa, JP;
Yoshinori Saito, Toyota, JP;
Masahide Miura, Toyota, JP;
Seiji Nakahigashi, Toyota, JP;
Hiromasa Suzuki, Toyota, JP;
Takahiro Suzuki, Kakegawa, JP;
Kosuke Iizuka, Kakegawa, JP;
Minoru Ito, Kakegawa, JP;
Ryota Nakashima, Kakegawa, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi, JP;
CATALER CORPORATION, Kakegawa-shi, Shizuoka, JP;
Abstract
An catalyst for purifying exhaust gas comprising an OCS material that has sufficient heat resistance and achieves a favorable balance between the oxygen storage volume and the oxygen absorption/release rate includes an catalyst for purifying exhaust, which has a substrate and a catalyst coating layer formed on the substrate, wherein the catalyst coating layer comprises a ceria-zirconia-based composite oxide having a pyrochlore structure in an amount of 5 to 100 g/L based on the volume of the substrate, the ceria-zirconia-based composite oxide has a secondary particle size (D50) of 3 μm to 7 μm, and the ceria-zirconia-based composite oxide optionally contains praseodymium.