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. 21, 2020
Filed:
Nov. 14, 2017
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventor:
Tadahiro Imada, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 9/00 (2006.01); F01N 3/20 (2006.01); F01N 3/027 (2006.01); F01N 13/00 (2010.01); F01N 3/021 (2006.01);
U.S. Cl.
CPC ...
F01N 9/002 (2013.01); F01N 3/021 (2013.01); F01N 3/027 (2013.01); F01N 3/0275 (2013.01); F01N 3/20 (2013.01); F01N 13/008 (2013.01); F01N 2560/06 (2013.01); F01N 2900/1602 (2013.01); Y02T 10/47 (2013.01);
Abstract
An exhaust purification device includes: an exhaust pipe configured to discharge exhaust gas from an internal combustion engine; a filter provided in the exhaust pipe and configured to collect a particulate matter contained in the exhaust gas; a plurality of electrodes configured to apply electric fields to a plurality of regions of the filter, respectively; and a power supply configured to apply at least two AC signals mutually different in phase to the plurality of electrodes.