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:
May. 09, 2023
Filed:
Mar. 24, 2022
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Norimichi Shimano, Toyota, JP;
Taizo Yoshinaga, Susono, JP;
Shogo Shirakawa, Toyota, JP;
Nobuyuki Takagi, Toyota, JP;
Masahide Miura, Toyota, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/28 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B01J 21/06 (2006.01); B01J 23/46 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
F01N 3/28 (2013.01); B01D 53/94 (2013.01); B01J 21/066 (2013.01); B01J 23/464 (2013.01); B01J 35/006 (2013.01); B01J 37/02 (2013.01);
Abstract
The present disclosure provides an exhaust gas purification material and an exhaust gas purification device that can efficiently remove harmful components even after being exposed to high temperature. Such exhaust gas purification material comprises metal oxide particles and noble metal particles supported on the metal oxide particles. The noble metal particles have a particle size distribution with a mean of 1.5 nm and 18 nm and a standard deviation of less than 1.6 nm.