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:
Oct. 05, 2021
Filed:
Sep. 06, 2018
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Makoto Miyahara, Tajimi, JP;
Kenji Yajima, Nagoya, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 69/10 (2006.01); C04B 38/00 (2006.01); B01D 71/02 (2006.01); C04B 41/89 (2006.01); B01D 53/22 (2006.01); C04B 41/52 (2006.01); C04B 41/00 (2006.01); B01D 69/12 (2006.01); C04B 41/85 (2006.01); B01D 67/00 (2006.01); B01D 69/04 (2006.01); B01D 69/08 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
B01D 69/10 (2013.01); B01D 53/228 (2013.01); B01D 67/0006 (2013.01); B01D 69/12 (2013.01); B01D 71/025 (2013.01); B01D 71/028 (2013.01); C04B 38/00 (2013.01); C04B 38/0006 (2013.01); C04B 41/009 (2013.01); C04B 41/52 (2013.01); C04B 41/85 (2013.01); C04B 41/89 (2013.01); B01D 67/0041 (2013.01); B01D 69/04 (2013.01); B01D 69/08 (2013.01); B01D 2256/245 (2013.01); B01D 2257/504 (2013.01); B01D 2325/02 (2013.01); B01D 2325/021 (2013.01); B01D 2325/04 (2013.01); C04B 2111/00801 (2013.01);
Abstract
A porous support includes a base body, a supporting layer, and a topmost layer. The supporting layer is disposed between the base body and the topmost layer, and makes contact with the topmost layer. A ratio of a porosity of the topmost layer to a porosity of the supporting layer is greater than or equal to 1.08. A ratio of a thickness of the topmost layer to a thickness of the supporting layer is less than or equal to 0.9.