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:
Jul. 09, 2013
Filed:
Dec. 28, 2010
Particulate matter detection device and inspection method of the particulate matter detection device
Shoji Yokoi, Nagoya, JP;
Takayuki Sakurai, Kakamigahara, JP;
Tatsuya Okayama, Wako, JP;
Masanobu Miki, Wako, JP;
Keizo Iwama, Wako, JP;
Makoto Hattori, Wako, JP;
Hidetaka Ozawa, Wako, JP;
Shoji Yokoi, Nagoya, JP;
Takayuki Sakurai, Kakamigahara, JP;
Tatsuya Okayama, Wako, JP;
Masanobu Miki, Wako, JP;
Keizo Iwama, Wako, JP;
Makoto Hattori, Wako, JP;
Hidetaka Ozawa, Wako, JP;
NGK Insulators, Ltd., Nagoya, JP;
Honda Motor Co., Ltd., Minato-Ku, JP;
Abstract
The particulate matter detection device of the present invention is a particulate matter detection deviceincluding an electrode portionand detection meansfor detecting an electrical characteristic of the electrode portion, whereby a particulate mattercontained in an exhaust gasis detected on the basis of a change of the electrical characteristic due to the particulate matterattached to the electrode portion. The particulate matter detection device ifurther includes removal meansand abnormality judgment meansfor comparing an initial electrical characteristic in a use initial state of the device with the electrical characteristic measured in a state where the particulate matterattached to the surface of the electrode portionis removed by the removal means, to judge whether or not the particulate matter detection device ihas an abnormality.