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:
Oct. 19, 2021
Filed:
Apr. 26, 2018
Umicore Shokubai Japan Co., Ltd., Tokoname, JP;
Hirotaka Kuno, Himeji, JP;
Masashi Nakashima, Himeji, JP;
Takahiro Ikegami, Himeji, JP;
Kosuke Mikita, Himeji, JP;
Masanori Ikeda, Himeji, JP;
Shigekazu Minami, Himeji, JP;
UMICORE SHOKUBAI JAPAN CO., LTD., Tokoname, JP;
Abstract
In order to provide an exhaust gas purification catalyst capable of purifying hydrocarbons, carbon monoxide, and nitrogen oxides in exhaust gas at low temperatures, the exhaust gas purification catalyst according to the present invention includes: a region () containing palladium and yttrium on a three-dimensional structure (), and a first region () and a second region () provided on the region () in order from an inflow side of exhaust gas to an outflow side of exhaust gas. The concentration of yttrium contained in the first region () and/or the second region () is higher than the concentration of yttrium contained in the region ().