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:
Jun. 15, 2021
Filed:
Sep. 05, 2017
Applicant:
Hitachi Metals, Ltd., Tokyo, JP;
Inventor:
Shunji Okazaki, Miyako-gun, JP;
Assignee:
HITACHI METALS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 29/70 (2006.01); C04B 35/195 (2006.01); B01J 35/10 (2006.01); B01J 35/04 (2006.01); B01J 37/04 (2006.01); C04B 38/00 (2006.01); B01D 46/24 (2006.01); B01J 23/63 (2006.01); B01J 37/00 (2006.01); B01J 37/08 (2006.01); C04B 38/06 (2006.01);
U.S. Cl.
CPC ...
B01J 29/70 (2013.01); B01D 46/2429 (2013.01); B01J 23/63 (2013.01); B01J 35/04 (2013.01); B01J 35/10 (2013.01); B01J 37/0018 (2013.01); B01J 37/04 (2013.01); B01J 37/082 (2013.01); C04B 35/195 (2013.01); C04B 38/0006 (2013.01); C04B 38/0054 (2013.01); B01D 2046/2433 (2013.01); B01D 2046/2437 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3222 (2013.01); C04B 2235/349 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/3463 (2013.01); C04B 2235/3481 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5463 (2013.01); C04B 2235/6021 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/6565 (2013.01); C04B 2235/80 (2013.01); C04B 2235/96 (2013.01); C04B 2235/9607 (2013.01); Y10T 428/24149 (2015.01);
Abstract
A ceramic honeycomb structure comprising large numbers of cells partitioned by porous cell walls, the cell walls having (a) porosity of 50-80%, and when measured by mercury porosimetry, (b) a median pore diameter being 25-50 μm, (c) (i) a cumulative pore volume in a pore diameter range of 20 μm or less being 25% or less of the total pore volume, (ii) a cumulative pore volume in a pore diameter range of more than 20 μm and 50 μm or less being 50% or more of the total pore volume, and (iii) a cumulative pore volume in a pore diameter range of more than 50 μm being 12% or more of the total pore volume.