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. 23, 2020
Filed:
Sep. 07, 2015
Cataler Corporation, Shizuoka, JP;
Ryota Onoe, Shizuoka, JP;
Shingo Sakagami, Shizuoka, JP;
Tsuyoshi Ito, Shizuoka, JP;
Yuta Morishita, Shizuoka, JP;
Cataler Corporation, Shizuoka, JP;
Abstract
Provided is an exhaust gas purification catalyst in which the performance of a catalyst metal can be brought out properly, the purification catalyst boasting excellent purification performance during warm-up of an internal combustion engine. The exhaust gas purification catalystis provided with a substrateand a catalyst layer. A leading end sectionpositioned upstream in the direction of exhaust gas flow (arrow) has a portion in which the flow rate of exhaust gas is relatively high and a portion in which the flow rate of exhaust gas is relatively low during warm-up of the internal combustion engine. The catalyst, layer in the portion of relatively high flow rate of exhaust gas has a high density sectionin which a noble metal, is supported at relatively high density. The high density sectionis formed to be shorter than the total length of the exhaust gas purification catalystfrom the leading end sectionin the direction of exhaust gas flow.