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.

Date of Patent:
Aug. 15, 2023

Filed:

Mar. 16, 2022
Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Hirotaka Saito, Komaki, JP;

Naoki Yoshida, Ichinomiya, JP;

Assignee:

NGK INSULATORS, LTD., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2026 (2013.01); F01N 3/281 (2013.01); F01N 2240/16 (2013.01); F01N 2330/02 (2013.01); F01N 2330/30 (2013.01);
Abstract

An electric heating type carrier including a conductive honeycomb structure portion and a pair of electrode layers, wherein in a cross-section orthogonal to the direction in which the cells extend, the honeycomb structure portion is classified into following three regions: a first resistance region having a contact portion with a first electrode layer, a second resistance region having a contact portion with a second electrode layer, and a third resistance region that does not come into contact with either the first electrode layer or the second electrode layer, and traverses the cross-section so as to be sandwiched between the first resistance region and the second resistance region, and has a higher electrical resistance per unit volume (1 cm) than an electrical resistance per unit volume (1 cm) of the first resistance region and the second resistance region.


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