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. 14, 2014
Filed:
Oct. 28, 2011
Applicants:
Takehito Kimata, Kariya, JP;
Mikiyasu Matsuoka, Obu, JP;
Inventors:
Takehito Kimata, Kariya, JP;
Mikiyasu Matsuoka, Obu, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01N 15/06 (2006.01); F01N 11/00 (2006.01); G01N 27/62 (2006.01); F01N 9/00 (2006.01);
U.S. Cl.
CPC ...
G01N 15/0656 (2013.01); Y02T 10/47 (2013.01); F01N 9/002 (2013.01); F01N 2550/04 (2013.01); F01N 2560/05 (2013.01); F01N 11/00 (2013.01);
Abstract
A particulate matter detection element includes a capacitance component disposed in parallel with a detected resistance R. A direct current-power source that supplies a direct current (I) for particulate matter detection, and an alternating-current power source that supplies an alternating current (I) for disconnection detection are provided.