- Patent Title: Tubular member for exhaust gas treatment device and exhaust gas treatment device using the tubular member, and method of manufacturing tubular member for exhaust gas treatment device
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Application No.: US17457754Application Date: 2021-12-06
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Publication No.: US11661875B2Publication Date: 2023-05-30
- Inventor: Daichi Tanaka , Yukinari Shibagaki
- Applicant: NGK INSULATORS, LTD.
- Applicant Address: JP Nagoya
- Assignee: NGK INSULATORS, LTD.
- Current Assignee: NGK INSULATORS, LTD.
- Current Assignee Address: JP Nagoya
- Agency: Burr Patent Law, PLLC
- Priority: JP 2021030170 2021.02.26
- Main IPC: F01N3/20
- IPC: F01N3/20 ; F01N3/28 ; C03C10/00 ; F01N13/14 ; F01N13/16
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 containing a crystalline substance, and the glass contains silicon, boron, and magnesium.
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