Patent application number | Description | Published |
20090016941 | Electrode Device For Plasma Discharge - It is disclosed a plasma discharging electrode device generating non-equilibrium plasma for treating a gas. The device has a substrate comprising an integrated sintered ceramic body; an electrode embedded in said substrate; and a catalyst supported by said substrate and accelerating the reaction of the gas. The substrate has a surface portion whose porosity is higher than that of a portion in the vicinity of the electrode in the substrate. | 01-15-2009 |
20100000404 | Particulate matter detection device and particulate matter detection method - A particulate matter detection device includes a collection electrode that collects the particulate matter, a discharge electrode that allows a corona discharge to occur when a voltage is applied between the collection electrode and the discharge electrode, a measurement electrode, the impedance between the collection electrode and the measurement electrode changing when the collection electrode has collected the particulate matter, and a measurement section that detects a change in the impedance between the collection electrode and the measurement electrode, the particulate matter detection device detecting the particulate matter by charging the particulate matter contained in the gas by utilizing the corona discharge, collecting the charged particulate matter by the collection electrode by utilizing an electrostatic force, and detecting a change in the impedance between the collection electrode that has collected the particulate matter and the measurement electrode using the measurement section. | 01-07-2010 |
20100000863 | PARTICULATE MATTER DETECTION DEVICE - A particulate matter detection device | 01-07-2010 |
20100071441 | PARTICULATE MATTER DETECTION DEVICE AND METHOD FOR MANUFACTURING THE SAME - A particulate matter detection device including a main body which has one end provided with a through hole; a pair of electrodes embedded in a wall through which the through hole is formed, and covered with a dielectric material; wires extending from the electrodes to the other end of the main body; and a ground electrode provided at a position sandwiched between the wires. The device can electrically adsorb, on the wall surface of the through hole, a charged particle in a fluid flowing into the through hole, or a particle charged by electric discharge caused in the through hole by applying a voltage across the pair of electrodes. The device can measure the changes of the electric properties of the wall through which the through hole is formed, thereby detecting particles adsorbed on the wall surface of the through hole. | 03-25-2010 |
20100229630 | PARTICULATE MATTER DETECTION DEVICE - A particulate matter detection device ( | 09-16-2010 |
20100229631 | PARTICULATE MATTER DETECTION DEVICE - A particulate matter detection device ( | 09-16-2010 |
20100229632 | PARTICULATE MATTER DETECTION DEVICE - A particulate matter detection device ( | 09-16-2010 |
20100229724 | PARTICULATE MATTER DETECTION DEVICE - A particulate matter detection device ( | 09-16-2010 |
20120055233 | PARTICULATE MATTER DETECTION DEVICE - A particulate matter detection device includes a plate-like element base material including, on one surface thereof, a formed recess portion to collect a particulate matter; a pair of measurement electrodes arranged on the bottom surface side of the recess portion of the element base material; and a high-voltage dust collection electrode embedded in a wall which forms the recess portion of the element base material on the one surface side of the element base material from a position where the pair of measurement electrodes are arranged. An electric field is generated from the high-voltage dust collection electrode to the pair of measurement electrodes, to collect, on the bottom surface side of the recess portion, the particulate matter flowing along the element base material, and a change of electric characteristics between the pair of measurement electrodes is measured to detect the particulate matter collected on the recess portion. | 03-08-2012 |