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.

Date of Patent:
Jun. 28, 2016

Filed:

Apr. 27, 2012
Applicants:

Masafumi Noda, Fujisawa, JP;

Tadashi Uchiyama, Fujisawa, JP;

Mitsuhiro Aso, Fujisawa, JP;

Inventors:

Masafumi Noda, Fujisawa, JP;

Tadashi Uchiyama, Fujisawa, JP;

Mitsuhiro Aso, Fujisawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/22 (2006.01); G01M 15/10 (2006.01); F01N 3/022 (2006.01); G01N 15/06 (2006.01); F01N 13/00 (2010.01); G01N 15/00 (2006.01);
U.S. Cl.
CPC ...
G01N 27/22 (2013.01); F01N 3/0222 (2013.01); F01N 13/008 (2013.01); G01M 15/102 (2013.01); G01N 15/0656 (2013.01); F01N 2560/05 (2013.01); F01N 2560/12 (2013.01); G01N 2015/0046 (2013.01); Y02T 10/20 (2013.01);
Abstract

A diesel particulate filter ('DPF') including vertically and horizontally stacked cells in which all of vertical and horizontal sides are surrounded by walls formed of a porous material, and sealing end faces of the cells alternately vertically and horizontally are provided with first and second electrodes. In a particulate matter ('PM') sensor in which a PM deposit quantity of the DPF is detected by a capacitance of a capacitor formed by the first and second electrodes, among open cells, the first electrodes are inserted into the open cells arranged in a line in a diagonal direction, and the second electrodes are inserted into the open cells arranged in a line in the diagonal direction and including the open cells secondarily adjacent to each of the open cells into which the first electrodes are inserted.


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