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:
Jul. 15, 2025
Filed:
Apr. 05, 2021
Applicant:
Umicore Shokubai Japan Co., Ltd., Tokoname, JP;
Inventors:
Assignee:
UMICORE SHOKUBAI JAPAN CO., LTD., Tokoname, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/06 (2006.01); B01D 53/94 (2006.01); B01J 23/10 (2006.01); B01J 23/63 (2006.01); B01J 37/08 (2006.01); C01G 25/00 (2006.01);
U.S. Cl.
CPC ...
C01G 25/00 (2013.01); B01D 53/94 (2013.01); B01J 23/63 (2013.01); B01J 37/08 (2013.01);
Abstract
An object of the present invention is to provide means for releasing oxygen at a temperature lower than conventional means in an exhaust gas purification catalyst. A Ce—Zr composite oxide is provided, which has a crystallite diameter of 6.5 nm or less and a BET specific surface area of 90 m/g or more.