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:
Sep. 11, 2018
Filed:
Mar. 17, 2016
Applicant:
Hitachi Metals, Ltd., Tokyo, JP;
Inventor:
Shunji Okazaki, Fukuoka, JP;
Assignee:
HITACHI METALS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 50/00 (2006.01); B01D 39/20 (2006.01); B01D 39/06 (2006.01); B01D 39/14 (2006.01); F01N 3/022 (2006.01); B28B 3/26 (2006.01); B01D 46/24 (2006.01); C04B 38/00 (2006.01); C04B 38/06 (2006.01); C04B 35/20 (2006.01);
U.S. Cl.
CPC ...
F01N 3/0222 (2013.01); B01D 46/2429 (2013.01); B28B 3/269 (2013.01); C04B 35/20 (2013.01); C04B 38/0006 (2013.01); C04B 38/0054 (2013.01); C04B 38/06 (2013.01); B01D 2046/2433 (2013.01); B01D 2046/2437 (2013.01); B01D 2046/2481 (2013.01); B01D 2275/30 (2013.01); B01D 2279/30 (2013.01); C04B 2235/3218 (2013.01); C04B 2235/349 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/3445 (2013.01); C04B 2235/6021 (2013.01); F01N 2330/06 (2013.01);
Abstract
A ceramic honeycomb structure having pluralities of flow paths partitioned by porous cell walls; (a) the cell walls having porosity of 50-60%; and (b) in a pore diameter distribution in the cell walls measured by mercury porosimetry, (i) pore diameters at cumulative pore volumes corresponding to particular percentages of the total pore volume being within specific ranges and having specific relationships; and (ii) the difference between a logarithm of the pore diameter at a cumulative pore volume corresponding to 20% of the total pore volume and a logarithm of the pore diameter at 80% being 0.39 or less, and its production method.