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:
Feb. 05, 2013
Filed:
Mar. 02, 2010
Masahiro Tokuda, Nagoya, JP;
Atsuo Kondo, Nagoya, JP;
Takeshi Sakuma, Nagoya, JP;
Takashi Egami, Nagoya, JP;
Masahiro Tokuda, Nagoya, JP;
Atsuo Kondo, Nagoya, JP;
Takeshi Sakuma, Nagoya, JP;
Takashi Egami, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A particulate matter detection device () includes a first electrode () that includes a conductive section () and a dielectric () that covers the conductive section (), and a second electrode () that is disposed opposite to the first electrode () at an interval of 0.3 to 3.0 mm. Charged particulate matter contained in a fluid that passes through the space between the first electrode () and the second electrode (), or particulate matter that is contained in a fluid and charged by a discharge that occurs due to application of a voltage between the electrodes () and () is electrically adsorbed on at least one of the electrodes () and (), and the particulate matter adsorbed on the electrodes () and () is detected by measuring a change in electrical properties of the first electrode (), or a change in electrical properties of the electrodes () and ().