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Kenji Obata

Kenji Obata, Hikone JP

Patent application numberDescriptionPublished
20100243765Electrostatic Atomization Device - An electrostatic atomization device that electrostatically atomizes condensed water and emits atomized water. The electrostatic atomization device includes a discharge electrode. A water supplier unit includes a cooling unit coupled to the discharge electrode to cool the discharge electrode and a heat radiation unit coupled to the cooling unit to emit heat when the cooling unit performs cooling. The cooling unit cools air and produces condensed water on the discharge electrode. A controller includes electronic components mounted on a circuit board. A casing accommodates the discharge electrode, the water supplier unit, and the controller. First electronic components each of which temperature is increased by a predetermined value or greater are arranged in a heat radiation unit side region of the circuit board.09-30-2010
20110073686Electrostatic atomizer for use in a motor vehicle - An electrostatic atomizer includes a discharge electrode; a high-voltage applying unit for applying a high voltage to the discharge electrode; a water supply unit for supplying water to the discharge electrode; an outlet through which charged water particles and ozone generated by electrostatic atomization during application of the high voltage to the discharge electrode are fed into a vehicle room; a distance measuring unit for measuring the distance between the outlet and a human body; and a control unit for controlling the high-voltage applying unit and the water supply unit to thereby control a discharge current of the discharge electrode. The control unit changes the discharge current in response to a detection signal of the distance measuring unit to make the discharge current supplied when the human body exits closer to the outlet smaller than when the human body exits far away from the outlet.03-31-2011
20110126551ELECTROSTATIC ATOMIZING DEVICE AND AIR CONDITIONER USING SAME - An electrostatic atomizing device includes an atomizing electrode which generates charged fine water particles negatively charged in the form of mist, by generating an electric field when a high negative voltage is applied thereto in a state in which water is supplied; a water supply portion which supplies the water to the atomizing electrode; a discharge detection portion which detects whether negative ion discharge, indicating discharge in which only negative ions are generated without generating the charged fine water particles, is occurring at the atomizing electrode or not; and a control portion which reduces the electric field intensity of the electric field generated by the atomizing electrode when the discharge detection portion detects the occurrence of the negative ion discharge.06-02-2011

Kenji Obata, Hikone-Shi JP

Patent application numberDescriptionPublished
20090109594ELECTROSTATICALLY ATOMIZING DEVICE - An electrostatically atomizing device comprises an emitter electrode, an opposed electrode disposed in an opposed relation to the emitter electrode, cooling means for condensing water on the emitter electrode from within a surrounding air, and a high voltage source for applying high voltage between the emitter electrode and the opposed electrode; and high voltage is applied to the condensed water, which becomes electrostatically charged thereby, so that minute water particles are discharged from a discharge end at a tip of the emitter electrode. The device comprises a controller for causing the charged minute water particles to be discharged stably. The controller has an initial control mode and a normal control mode. In the initial mode, the cooling means is controlled so as to cool the emitter electrode at a predetermined cooling rate. Once discharge current flowing from the emitter electrode to the opposed electrode reaches into a predetermined target discharge current range, the cooling means is controlled by feedback control, on the basis of the value of the discharge current, in such a manner that the discharge current is kept within the target discharge current range.04-30-2009
20090135539ELECTROSTATICALLY ATOMIZING DEVICE - The electrostatically atomizing device in this invention comprises an emitter electrode, a water supply means, a high voltage source, and an atomization detecting means and further comprises a controller. The water supply means is configured to supply water to the emitter electrode. The high voltage source is configured to apply a high voltage to the emitter electrode so as to electrostatically atomize the water on the emitter electrode. The atomization detecting means is configured to detect a condition where the water is electrostatically atomized from the emitter electrode. The controller is configured to apply a starting voltage upon energization of the device. The controller is configured to apply an operating voltage upon recognition of the condition. The starting voltage is configured to be higher than the operating voltage. With this configuration, it is possible to obtain the electrostatically atomizing device which is configured to generate a mist of charged minute water particles immediately upon energization of the electrostatically atomizing device. It is possible to obtain the electrostatically atomizing device which is configured to generate the mist of the charged minute water particles stably upon recognition of the condition.05-28-2009
20090303752Switching Power Supply - A switching power supply includes an active device for pulling out a part of a control signal from a control terminal of the switching device in an RCC, and a control signal generation circuit that applies adjustment voltage as ON/OFF time control voltage to a control terminal of the active device. The active device pulls out the control signal so as to decrease or increase an OFF time of the switching device while fixing the ON time of the switching device when the adjustment voltage is decreased or increased in the active region of the active device, respectively. An element of a timing circuit in the RCC pulls out the control signal so as to increase or decrease an ON time of the switching device while fixing the OFF time of the switching device when the adjustment voltage is decreased or increased in the cut-off region of the active device, respectively.12-10-2009
20100241306ION GENERATING SYSTEM FOR USING IN A VEHICLE - An ion generating system for use in a vehicle has an ion generator and a controller for controlling the operation thereof. The ion generator is energized by a vehicle battery to keep dispensing ions by means of the controller even under a condition where the engine is not running, making deodorization or sterilization of a passenger's room to give a comfortable environment to the vehicle.09-23-2010

Kenji Obata, Kadoma-Shi JP

Patent application numberDescriptionPublished
20090134249Electrostatic atomizer - An electrostatic atomizer includes an atomizing electrode, a water supply unit for supplying water to the atomizing electrode, a high voltage power circuit and a control unit. The high voltage power circuit applies a high voltage to the atomizing electrode to electrostatically atomizing water supplied to the atomizing electrode and to generate electrically charged water particles. The control unit controls the high voltage power circuit such that the voltage applied to the atomizing electrode is gradually increased at the time of starting the electrostatic atomizer. Further, the control unit may control the high voltage power circuit such that the voltage is increased to a target voltage in steps at the time of starting the electrostatic atomizer, and an increment of the voltage at each step is decreased as the voltage approaches the target voltage.05-28-2009