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. 08, 2018
Filed:
Feb. 05, 2016
Ngk Insulators, Ltd., Nagoya, JP;
Yoshimasa Omiya, Nagoya, JP;
Yoshiyuki Kasai, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
The honeycomb type heating device includes: a pillar-shaped honeycomb substrate which includes a porous partition wall defining a plurality of cells extending from one end face to the other end face and a circumferential wall surrounding the partition wall; and a plurality of heaters which are disposed adjacently in a circumferential direction of an outer circumferential face that is an outer surface of the circumferential wall, on the outer circumferential face. Each heater is a resistance heating heater which radiates heat by a current supplied thereto, each heater comes into face-contact with the outer circumferential face, and a ratio of a total area of a portion covered by the heaters of the outer circumferential face with respect to the entire area of the outer circumferential face is 50 to 100%.