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:
Nov. 06, 2018
Filed:
Aug. 26, 2016
Ngk Insulators, Ltd., Nagoya, JP;
Kazuya Mori, Nagoya, JP;
Toshihiro Hirakawa, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A plugged honeycomb structure includes: a plurality of honeycomb segments, a bonding layer, and plugging portions to plug open ends of cells of the honeycomb segments. The honeycomb segment is configured so that the cells having at least two kinds of different shapes are disposed in a cross section orthogonal to an extension direction of the cells, the honeycomb segment has a center region configured by repeating units to maintain a repeated pattern including cell arrangement in which inflow cells surround an inflow cell, and a circumferential region located at the circumference of the center region, the circumferential region has open frontal area that is larger than open frontal area of the center region at the inflow end face of the honeycomb segment, the segment circumferential wall and the bonding layer have a special range of a thickness.