Patents by Inventor Kenji Obata
Kenji Obata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220291160Abstract: The gas sensor is provided with: a base material; a first electrode and a second electrode arranged on the base material; and a gas detection member connected to the first electrode and the second electrode, wherein the gas detection member contains flaky particles of alkaline earth ferrite.Type: ApplicationFiled: August 26, 2020Publication date: September 15, 2022Inventors: Shigenori MATSUSHIMA, Kenji OBATA, Kenichi GUCHI, Yukiko OTA, Hisakazu NAGATA, Koichi URANO
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Patent number: 10164487Abstract: A motor includes a rotation shaft, a stator, and a rotor. The stator includes an armature winding and a stator core including a main core portion with an axial stack of core sheets and a magnetic plate on an end thereof. Each core sheet includes a tooth formation portion around which the armature winding is wound. The magnetic plate includes a stacked portion and an axially extending portion. The stacked portion stacked on the axial end of the main core portion and includes an end located toward the rotor. The axially extending portion extends toward the outer side in the axial direction from the end of the stacked portion located toward the rotor and is opposed to the rotor in a radial direction of the motor. The axially extending portion is shaped to be magnetically skewed in a circumferential direction relative to the tooth formation portion and the stacked portion.Type: GrantFiled: January 23, 2014Date of Patent: December 25, 2018Assignee: ASMO CO., LTD.Inventors: Tatsunori Banba, Hiroshi Katai, Yuusuke Tateishi, Yuuji Yamashita, Takumi Suzuki, Kenji Obata, Yoshimasa Kinpara, Takashi Nagaya
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Patent number: 8998198Abstract: A controller temporarily opens a pair of side fence plates under a prescribed condition to move the side fence plates away from both side ends of sheets in a sheet width direction, after each time stacking of sheets at a first or second sheet stacking position is completed, but before a sheet receiving tray is temporarily lifted down to offset an offset guide plate and an end fence plate. Else, the controller sets an amount of lifting up and down of the sheet receiving tray such that the amount at the second sheet stacking position is smaller than that at the first sheet stacking position when offsetting the offset guide plate and the end fence plate after each time the stacking of sheets at the first or second sheet stacking position on the sheet receiving tray is completed.Type: GrantFiled: August 22, 2013Date of Patent: April 7, 2015Assignee: Riso Kagaku CorporationInventors: Takeshi Yamajo, Hiroshi Sugitani, Masashi Hara, Hitoshi Arai, Kenji Obata
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Publication number: 20140210284Abstract: A motor includes a rotation shaft, a stator, and a rotor. The stator includes an armature winding and a stator core including a main core portion with an axial stack of core sheets and a magnetic plate on an end thereof. Each core sheet includes a tooth formation portion around which the armature winding is wound. The magnetic plate includes a stacked portion and an axially extending portion. The stacked portion stacked on the axial end of the main core portion and includes an end located toward the rotor. The axially extending portion extends toward the outer side in the axial direction from the end of the stacked portion located toward the rotor and is opposed to the rotor in a radial direction of the motor. The axially extending portion is shaped to be magnetically skewed in a circumferential direction relative to the tooth formation portion and the stacked portion.Type: ApplicationFiled: January 23, 2014Publication date: July 31, 2014Inventors: Tatsunori BANBA, Hiroshi KATAI, Yuusuke TATEISHI, Yuuji YAMASHITA, Takumi SUZUKI, Kenji OBATA, Yoshimasa KINPARA, Takashi NAGAYA
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Publication number: 20140062014Abstract: A controller temporarily opens a pair of side fence plates under a prescribed condition to move the side fence plates away from both side ends of sheets in a sheet width direction, after each time stacking of sheets at a first or second sheet stacking position is completed, but before a sheet receiving tray is temporarily lifted down to offset an offset guide plate and an end fence plate. Else, the controller sets an amount of lifting up and down of the sheet receiving tray such that the amount at the second sheet stacking position is smaller than that at the first sheet stacking position when offsetting the offset guide plate and the end fence plate after each time the stacking of sheets at the first or second sheet stacking position on the sheet receiving tray is completed.Type: ApplicationFiled: August 22, 2013Publication date: March 6, 2014Inventors: Takeshi YAMAJO, Hiroshi SUGITANI, Masashi HARA, Hitoshi ARAI, Kenji OBATA
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Patent number: 8448883Abstract: An electrostatically atomizing device includes an emitter electrode, an opposed electrode disposed in an opposed relation to the emitter electrode, liquid supply means for supplying a liquid to the emitter electrode, and high voltage generating means for applying a high voltage across the emitter electrode and the opposed electrode. The liquid supplied onto the emitter electrode is electrostatically charged through application of the high voltage, as a result of which charged minute liquid particles are discharged from a discharge end of the emitter electrode. The device includes detecting means for detecting a discharge condition developed between the emitter electrode and the opposed electrode, and a controller for controlling the high voltage generating means to regulate its voltage output so as to maintain a predetermined discharge condition, based on detection results by the detecting means.Type: GrantFiled: May 22, 2007Date of Patent: May 28, 2013Assignee: Panasonic CorporationInventors: Sumio Wada, Atsushi Isaka, Kenji Obata, Yutaka Uratani, Shousuke Akisada, Hiroshi Suda, Takayuki Nakada
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Patent number: 8317113Abstract: 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.Type: GrantFiled: March 24, 2010Date of Patent: November 27, 2012Assignee: Panasonic CorporationInventors: Hidesato Uegaki, Osamu Imahori, Kenji Obata, Atsushi Isaka
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Publication number: 20120175440Abstract: A discharge device comprises: a discharge electrode; an electrically insulating portion including an atomization room accommodating the discharge electrode; a water supplier configured to supply water to a surface of the discharge electrode; a high voltage supply configured to apply a high voltage to the discharge electrode to atomize the supplied water as charged water fine particles from a tip portion of the discharge electrode; and an electromagnetic shield provided at least around the atomization room, the electromagnetic shield having an opening to discharge the charged water fine particles.Type: ApplicationFiled: September 22, 2010Publication date: July 12, 2012Applicant: PANASONIC CORPORATIONInventors: Hidesato Uegaki, Kenji Obata, Atsushi Isaka
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Patent number: 8056839Abstract: 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.Type: GrantFiled: November 25, 2008Date of Patent: November 15, 2011Assignee: Panasonic Electric Works Co., Ltd.Inventors: Yutaka Uratani, Kenji Obata, Atsushi Isaka
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Patent number: 8035998Abstract: 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.Type: GrantFiled: June 29, 2007Date of Patent: October 11, 2011Assignee: Panasonic Electric Works Co., Ltd.Inventors: Kyohei Kada, Mikio Itou, Sumio Wada, Shousuke Akisada, Atsushi Isaka, Kenji Obata
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Patent number: 7983016Abstract: An electrostatically atomizing device comprises an emitter electrode, an opposed electrode, cooling means for condensing water on the emitter electrode, and a high voltage source; and high voltage is applied to the condensed water 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 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.Type: GrantFiled: May 22, 2007Date of Patent: July 19, 2011Assignee: Panasonic Electric Works Co., Ltd.Inventors: Shousuke Akisada, Kenji Obata
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Publication number: 20110126551Abstract: 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.Type: ApplicationFiled: July 27, 2009Publication date: June 2, 2011Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventors: Yutaka Uratani, Kenji Obata, Takeshi Yano, Atsushi Isaka
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Publication number: 20110073686Abstract: 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.Type: ApplicationFiled: September 30, 2010Publication date: March 31, 2011Applicant: Panasonic Electric Works Co., Ltd.Inventors: Hidesato Uegaki, Junichi Matsumoto, Kenji Obata, Atsushi Isaka
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Publication number: 20100243765Abstract: 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.Type: ApplicationFiled: March 24, 2010Publication date: September 30, 2010Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventors: Hidesato UEGAKI, Osamu IMAHORI, Kenji OBATA, Atsushi ISAKA
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Publication number: 20100241306Abstract: 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.Type: ApplicationFiled: July 20, 2007Publication date: September 23, 2010Inventors: Shousuke Akisada, Akihide Sugawa, Takeshi Yano, Kenji Obata, Akio Okude
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Publication number: 20090303752Abstract: 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.Type: ApplicationFiled: June 29, 2007Publication date: December 10, 2009Applicant: Panasonic Electric Works Co., Ltd.Inventors: Kyohei Kada, Mikio Itou, Sumio Wada, Shousuke Akisada, Atsushi Isaka, Kenji Obata
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Patent number: 7603616Abstract: A computer based system and method of determining whether to re-fetch a previously retrieved document across a computer network is disclosed. The method utilizes a statistical model to determine whether the previously retrieved document likely changed since last accessed. The statistical model is continuously improving its accuracy by training internal probability distributions to reflect the actual experience with change rate patterns of the documents accessed. The decision of whether to access the document is based on the probability of change compared against a desired synchronization level, random selections, maximum limits on the amount of time since the document was last accessed, and other criterion. Once the decision to access is made, the document is checked for changes and this information is used to train the statistical model.Type: GrantFiled: November 5, 2004Date of Patent: October 13, 2009Assignee: Microsoft CorporationInventors: Kenji Obata, Dmitriy Meyerzon
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Publication number: 20090179093Abstract: An electrostatically atomizing device includes an emitter electrode, an opposed electrode disposed in an opposed relation to the emitter electrode, liquid supply means for supplying a liquid to the emitter electrode, and high voltage generating means for applying a high voltage across the emitter electrode and the opposed electrode. The liquid supplied onto the emitter electrode is electrostatically charged through application of the high voltage, as a result of which charged minute liquid particles are discharged from a discharge end of the emitter electrode. The device includes detecting means for detecting a discharge condition developed between the emitter electrode and the opposed electrode, and a controller for controlling the high voltage generating means to regulate its voltage output so as to maintain a predetermined discharge condition, based on detection results by the detecting means.Type: ApplicationFiled: May 22, 2007Publication date: July 16, 2009Inventors: Sumio Wada, Atsushi Isaka, Kenji Obata, Yutaka Uratani, Shousuke Akisada, Hiroshi Suda, Takayuki Nakada
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Publication number: 20090134249Abstract: 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.Type: ApplicationFiled: November 25, 2008Publication date: May 28, 2009Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventors: Yutaka Uratani, Kenji Obata, Atsushi Isaka
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Publication number: 20090135539Abstract: 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.Type: ApplicationFiled: November 24, 2008Publication date: May 28, 2009Inventors: Yutaka Uratani, Kenji Obata, Atsushi Isaka