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. 30, 2023
Filed:
Dec. 06, 2021
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Daichi Tanaka, Nagoya, JP;
Yukinari Shibagaki, Obu, JP;
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F01N 3/28 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2803 (2013.01); B01D 53/94 (2013.01); F01N 3/2026 (2013.01); F01N 2370/02 (2013.01);
Abstract
A tubular member for an exhaust gas treatment device according to at least one embodiment of the present invention includes: a tubular main body made of a metal; and an insulating layer formed at least on an inner peripheral surface of the tubular main body. The insulating layer contains glass, the glass contains barium, and the glass has a content of barium of 5 mol % or more.