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:
Apr. 05, 2011
Filed:
Jul. 10, 2009
Applicant:
Takashi Mizutani, Tokoname, JP;
Inventor:
Takashi Mizutani, Tokoname, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/12 (2006.01); B01D 39/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plugged honeycomb structure includes: a honeycomb structure having porous partition walls separating and forming a plurality of cells communicating between an inlet end face on an inlet side of a fluid and an outlet end face on an outlet side of the fluid, and plugging portions for plugging an opening portion of each of predetermined cells on the inlet end face and an opening portion of each of the other cells on the outlet end face. There, 1.5% or more of the plugging portions plugging the opening portions of the predetermined cells on the inlet end face have a depressed pit on the end face on the inlet end face side.