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:
Jul. 11, 2017
Filed:
Aug. 31, 2015
Ngk Insulators, Ltd., Nagoya, JP;
Yukio Miyairi, Nagoya, JP;
Kazuhiko Kumazawa, Nagoya, JP;
Toshihiro Hirakawa, Nagoya, JP;
Toshio Yamada, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
In a cross section perpendicular to a central axis direction of the honeycomb substrate, cells are arranged so that a periphery of an inlet plugged cell is surrounded with four rectangular outlet plugged cells and four square outlet plugged cells, and in the cross section, a partition wall center distance a, a partition wall center distance b and a partition wall thickness t satisfy the following equation (1). Additionally, an amount of a catalyst per unit volume of partition walls which is loaded onto the partition walls defining the rectangular outlet plugged cells and the inlet plugged cells is larger than an amount of a catalyst per unit volume of the partition walls which is loaded onto the partition walls defining the rectangular outlet plugged cells and the square outlet plugged cells0.95<<1.90  (1).