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. 28, 2020
Filed:
Jun. 07, 2017
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 38/00 (2006.01); C04B 35/195 (2006.01); B01D 46/24 (2006.01); B01D 53/94 (2006.01); B01J 35/04 (2006.01); B01J 35/10 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
C04B 38/0009 (2013.01); B01D 46/2455 (2013.01); B01J 35/04 (2013.01); B01J 35/10 (2013.01); C04B 35/195 (2013.01); B01D 46/247 (2013.01); B01D 46/2429 (2013.01); B01D 53/9431 (2013.01); B01D 2046/2433 (2013.01); B01D 2046/2437 (2013.01); B01D 2046/2481 (2013.01); B01D 2046/2496 (2013.01); C04B 2111/0081 (2013.01); C04B 2111/00474 (2013.01); C04B 2111/00793 (2013.01);
Abstract
The honeycomb structure body has a dense part at a part in axial direction including a center region of the inflow end face, the dense part having a change ratio of porosity calculated by the following Expression (1) that is 2 to 8%, and has an outside-diameter increasing part, and the honeycomb structure body has a change ratio of average diameter calculated by the following Expression (2) that is 0.2 to 3%,(1−Px/Py)×100,   Expression (1):