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. 26, 2013
Filed:
Feb. 12, 2010
Tatsuya Okayama, Saitama, JP;
Masanobu Miki, Saitama, JP;
Keizo Iwama, Saitama, JP;
Hidetaka Ozawa, Saitama, JP;
Makoto Hattori, Saitama, JP;
Atsuo Kondo, Aichi, JP;
Takeshi Sakuma, Aichi, JP;
Takashi Egami, Aichi, JP;
Masahiro Tokuda, Aichi, JP;
Tatsuya Okayama, Saitama, JP;
Masanobu Miki, Saitama, JP;
Keizo Iwama, Saitama, JP;
Hidetaka Ozawa, Saitama, JP;
Makoto Hattori, Saitama, JP;
Atsuo Kondo, Aichi, JP;
Takeshi Sakuma, Aichi, JP;
Takashi Egami, Aichi, JP;
Masahiro Tokuda, Aichi, JP;
Honda Motor Co., Ltd., Tokyo, JP;
NGK Insulators, Ltd., Nagoya, Aichi, JP;
Abstract
A PM sensor is provided having high responsiveness and capable of long term detection. A PM sensor includes a sensor element that has particulate collection electrodes to which a particulate collection voltage for causing particulate matter contained in exhaust to adhere to a sensor element is applied, and measurement electrodes to which a measurement voltage for measuring an electrical characteristic of the sensor element is applied, in which, after a particulate collection voltage is applied to the particulate collection electrodes application of the particulate collection voltage is stopped in response to a predetermined condition being satisfied, the measurement voltage is applied to the measurement electrodes and the electrical characteristic of the sensor element is measured.