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. 27, 2018
Filed:
Jun. 11, 2015
Applicant:
Nichias Corporation, Tokyo, JP;
Inventors:
Kazutoshi Isomura, Tokyo, JP;
Hiroki Nakamura, Tokyo, JP;
Kiyoshi Sato, Tokyo, JP;
Isami Abe, Tokyo, JP;
Assignee:
NICHIAS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/021 (2006.01); F01N 3/28 (2006.01); B01D 39/20 (2006.01); B01D 46/00 (2006.01); F01N 3/022 (2006.01); F01N 3/035 (2006.01); B01D 53/94 (2006.01); B32B 5/26 (2006.01); D04H 1/4209 (2012.01); D04H 1/58 (2012.01);
U.S. Cl.
CPC ...
F01N 3/0211 (2013.01); B01D 39/2082 (2013.01); B01D 46/0005 (2013.01); B01D 46/0027 (2013.01); F01N 3/0217 (2013.01); F01N 3/0226 (2013.01); F01N 3/035 (2013.01); F01N 3/28 (2013.01); F01N 3/285 (2013.01); F01N 3/2864 (2013.01); B01D 53/94 (2013.01); B01D 2239/0208 (2013.01); B01D 2239/065 (2013.01); B01D 2239/10 (2013.01); B01D 2279/30 (2013.01); B32B 5/26 (2013.01); D04H 1/4209 (2013.01); D04H 1/58 (2013.01); F01N 2330/06 (2013.01); F01N 2510/06 (2013.01);
Abstract
A holding material includes a stack of a first mat and a second mat, the first mat including alumina fibers that include 60 wt % or more of alumina and 40 wt % or less of silica, and the second mat including silica fibers that include 60 wt % or more of silica and 40 wt % or less of alumina and having a surface pressure higher than that of the first mat as measured at a gap bulk density of 0.30 g/cm.