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. 25, 2022
Filed:
Jun. 11, 2021
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/195 (2006.01); F01N 3/022 (2006.01); F01N 3/08 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
F01N 3/0222 (2013.01); C04B 35/195 (2013.01); F01N 3/0842 (2013.01); F01N 3/0857 (2013.01); F01N 3/2066 (2013.01); F01N 3/28 (2013.01);
Abstract
When the porous ceramic structure contains Co together with Fe or Mn, the Co content is higher than or equal to 0.1 mass % and lower than or equal to 3.0 mass % in terms of CoO, and when the porous ceramic structure contains Co without containing Fe and Mn, the Co content is higher than or equal to 0.2 mass % and lower than or equal to 6.0 mass % in terms of CoO. The ratio of the sum of the Fe content in terms of FeO, the Mn content in terms of MnO, and the Co content in terms of CoOto the Ce content in terms of CeOis higher than or equal to 0.8 and lower than or equal to 9.5.