Patents by Inventor Koji Ota

Koji Ota 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).

  • Patent number: 9290078
    Abstract: An air conditioner for a vehicle includes an electric heater arranged downstream of a heat exchanger in an air flow direction, a defroster air outlet, a driver-foot air outlet through which air is blown toward a foot area of a driver, a knee air outlet through which air is blown toward a knee area of the driver, a door device which controls an air amount blown into a vehicle compartment by opening or closing the air outlets. When an immediate heating operation is performed by an operation of an immediate heating switch, the door device opens the defroster air outlet and at least one of the driver-foot air outlet and the knee air outlet, and the electric heater heats a total amount of air that is to be blown through the at least one of the driver-foot air outlet and the knee air outlet.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: March 22, 2016
    Assignee: DENSO CORPORATION
    Inventors: Koji Ota, Manabu Maeda, Yuji Kawazoe, Shinji Iwama
  • Publication number: 20160068044
    Abstract: A radiant heater air-conditioning system includes: a heater main body having a heating portion energized to generate heat so as to radiate a radiant heat into a vehicle interior; an energization setting unit that sets an energization enable state for enabling energization of the heating portion and an energization disable state for disabling the energization of the heating portion; and an air-conditioning control apparatus that controls an air-conditioning output of a heating operation in the vehicle interior. The air-conditioning control apparatus reduces the air-conditioning output when the energization enable state is set, compared with when the energization disable state is set.
    Type: Application
    Filed: March 12, 2014
    Publication date: March 10, 2016
    Inventors: Yasuhiro SAGOU, Koji OTA, Asami OKAMOTO, Manabu MAEDA, Takuya KATAOKA
  • Publication number: 20160059669
    Abstract: A radiant heater device has an electrode embedded in a substrate part and a plurality of heating parts. The electrodes are formed by material that has low specific resistance. An area occupied by the electrode is restricted. The heating parts are formed by material having high specific resistance in order to generate heat so that radiation is produced. The electrode and the heating part are electrically connected within the substrate part. The plurality of heating parts are arranged in parallel between a pair of electrodes. The electrodes and the heating parts are formed in a film-like shape, and the thermal capacity is reduced. As a result, a temperature of the heating parts rises promptly in response to a turning on of power. In addition, the temperature of the heating parts promptly decreases when an object comes into contact therewith.
    Type: Application
    Filed: March 17, 2014
    Publication date: March 3, 2016
    Inventors: Yasuhiro SAGOU, Takuya KATAOKA, Asami OKAMOTO, Manabu MAEDA, Koji OTA, Masayuki AOYAMA, Kouji KONDOH, Motoki SHIMIZU, Yoshihiko SHIRAISHI, Yoshitarou YAZAKI, Keita SAITOU
  • Publication number: 20160046174
    Abstract: A radiant heater device includes: a heater main body having a heating portion that generates heat by being supplied with electric power to radiate radiation heat due to the heat supplied from the heating portion; an output control unit that controls an output of the heating portion; and a maximum output determination unit that determines an upper limit of the output of the heating portion depending on a heat load around the heater main body. The output control unit controls the output of the heating portion depending on the heat load not to exceed the upper limit of the output determined by the maximum output determination unit.
    Type: Application
    Filed: February 14, 2014
    Publication date: February 18, 2016
    Inventors: Yasuhiro SAGOU, Takuya KATAOKA, Asami OKAMOTO, Manabu MAEDA, Koji OTA, Hiroyuki SAKANE, Akira OGA, Masatoshi NAKASHIMA, Hiroshi TAKEDA, Masataka KINOSHITA, Hideaki KAKO, Kimitake ISHIKAWA
  • Publication number: 20160039265
    Abstract: A heater apparatus includes a main body, a detecting unit, and a control part. The main body has a power supply part to which electric power is supplied and a heating portion connected to the power supply part to generate heat by electric power supplied from the power supply part. The detecting unit detects an object around the main body. The control part controls supply amount of the electric power to the power supply part. The control part controls the supply amount of electric power to the power supply part to be reduced compared with a normal state when the detecting unit detects that the object is within a predetermined range of the main body.
    Type: Application
    Filed: January 23, 2014
    Publication date: February 11, 2016
    Inventors: Koji OTA, Takuya KATAOKA, Manabu MAEDA, Asami OKAMOTO, Yasuhiro SAGOU, Keita SAITOU, Yoshihiko SHIRAISHI, Toshihisa TANIGUCHI
  • Patent number: 9228752
    Abstract: A humidifier includes a first electrode that is a porous metal body having a three-dimensional porous structure, a second electrode that is a conductor electrode arranged opposite to the first electrode with a space of a predetermined distance from the first electrode, a power supply that forms an electric field in the space between the first electrode and the second electrode, a water supply unit that supplies water to the first electrode, and a fan that sends air to the space to evaporate and disperse the water that is supplied from the water supply unit to the first electrode and retained by the first electrode.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: January 5, 2016
    Assignee: Mitsbuishi Electric Corporation
    Inventors: Takahiro Sakai, Akira Morikawa, Koji Ota, Yasutaka Inanaga, Yasuhiro Tanimura, Hiroshi Tsutsumi
  • Patent number: 9216233
    Abstract: An apparatus 100 includes an air path housing 10, a charging-unit high-voltage electrode 2 to charge airborne microorganisms introduced in the air path housing 10, a charging-unit ground electrode 3 disposed so as to face the charging-unit high-voltage electrode 2, a hydrophilic filter 6 to capture the airborne microorganisms charged by the charging-unit high-voltage electrode 2, a capturing/inactivating-unit high-voltage electrode 5 to polarize the hydrophilic filter 6, and a capturing/inactivating-unit ground electrode 7 disposed so as to face the capturing/inactivating-unit high-voltage electrode 5.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: December 22, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koji Ota, Yasutaka Inanaga, Akira Morikawa, Takahiro Sakai
  • Publication number: 20150346243
    Abstract: A current load detection device is configured to detect a current load to a common power supply unit of a system in which a plurality of devices is connected to the common power supply unit. The current load detection device includes resistances provided for each of the plurality of devices and having resistance values corresponding to consumption current of each of the plurality of devices, a parallel connection unit configured to connect the resistances provided for the plurality of devices in parallel when the plurality of devices is connected to the power supply unit, and a measuring unit configured to measure a combined resistance value of the resistances connected in parallel by the parallel connection unit.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 3, 2015
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventor: Koji OTA
  • Publication number: 20150290352
    Abstract: A corona discharge device includes a charging-section high-voltage electrode unit including a plurality of charging-section high-voltage electrodes, and a charging-section ground electrode unit includes a plurality of charging-section ground electrodes formed by flat plates. The plurality of charging-section high-voltage electrodes are arranged at intervals in a direction intersecting an airflow in an air path, and are connected to one another at at least one longitudinal end by a conductive frame portion. The plurality of charging-section ground electrodes are disposed between the charging-section high-voltage electrodes in an orientation such that flat surfaces thereof are substantially parallel to the airflow in the air path, and are connected at at least one longitudinal end by a conductive frame portion.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 15, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Koji Ota, Yasutaka Inanaga, Akira Morikawa, Takahiro Sakai, Yasuhiro Tanimura
  • Publication number: 20150219097
    Abstract: In a gear pump, an outer inner wall surface of a suction port which is located on a downstream side in a rotor rotation direction, that is, a first inner wall surface, is located inward of a bottom land between internal teeth of an outer rotor, and the suction port has a shallow portion extended inward from the first inner wall surface on the downstream side in the rotor rotation direction, and a deep portion that is formed so as to be continuous with the shallow portion and that is deeper than the shallow portion. Communication between an inter-tooth chamber and the suction port is cut off with the inter-tooth chamber facing only the shallow portion.
    Type: Application
    Filed: August 28, 2013
    Publication date: August 6, 2015
    Applicant: AISIN AW CO., LTD.
    Inventors: Takahiro Torii, Kengo Nomura, Minoru Todo, Mikio Iwase, Koji Ota, Mitsuhiro Takeda, Naoki Okoshi, Takumi Uchida
  • Publication number: 20150114016
    Abstract: When an air conditioning ECU determines that it is immediately before idling stop, the air conditioning ECU implements a front seat air conditioning mode even if the air conditioning ECU determines that an occupant intensive air-conditioning mode can be implemented. Accordingly, the air conditioning ECU controls opening and closing mechanisms so as to blow a conditioned air from driver's seat side outlet ports, and also blow the conditioned air from a passenger's seat side foot outlet port. Hence, in cooling operation, since a temperature increase of air drawn into an inside air inlet port is limited when the idling stop is carried out, temperature increase of air blown into the vehicle interior from the outlet port can be restricted. In other words, a temperature change in the vehicle interior can be limited when a travel engine stops due to the idling stop.
    Type: Application
    Filed: April 1, 2013
    Publication date: April 30, 2015
    Applicant: DENSO CORPORATION
    Inventors: Koji Ota, Yasuhiro Sagou
  • Publication number: 20150110477
    Abstract: A radiation heater apparatus has a plurality of heat radiation parts and a plurality of heating parts. A low thermal conductive part is formed between adjacent two of the heat radiation parts. The low thermal conductive part is provided with resin material which mainly forms a substrate part. The low thermal conductive part thermally isolates the heat radiation part by surrounding a periphery of the heat radiation part. As a body contacts with the surface of the apparatus, the thermal energy of specific heat radiation part directly under the body dissipates heat to the body. Furthermore, heat transfer from the periphery of the specific heat radiation part to the specific heat radiation part is reduced by the low thermal conductive part.
    Type: Application
    Filed: May 21, 2013
    Publication date: April 23, 2015
    Applicant: DENSO CORPORATION
    Inventors: Koji Ota, Manabu Maeda, Yasuhiro Sagou, Kouji Kondoh, Gentaro Masuda, Hidetada Kajino, Yoshihiko Shiraishi
  • Patent number: 8899311
    Abstract: When there is no occupant in seats other than a driver seat during a foot mode, an air-conditioning controller executes a single seat concentration mode to prevent blowing of warm air to a passenger seat and a backseat by closing foot outlets on a passenger seat side and a backseat side. In this case, in order to maintain an air volume blown from the foot outlet on a driver seat side when the controller changes the mode from the normal foot mode to the single seat concentration mode, the controller sets a blower level to be lower than in the case of the normal foot mode with respect to the same target blown air temperature.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: December 2, 2014
    Assignee: Denso Corporation
    Inventors: Haruki Misumi, Takuya Kataoka, Koji Ota, Michio Nishikawa, Shinichirou Hirai, Yoshiaki Suzuki, Akihiro Haraguchi, Katsuji Kuwada, Yasuhiro Sagou
  • Publication number: 20140205495
    Abstract: An apparatus includes an air path housing, a charging-unit high-voltage electrode to charge airborne microorganisms introduced in the air path housing, a charging-unit ground electrode disposed so as to face the charging-unit high-voltage electrode, a hydrophilic filter to capture the airborne microorganisms charged by the charging-unit high-voltage electrode, a capturing/inactivating-unit high-voltage electrode to polarize the hydrophilic filter, and a capturing/inactivating-unit ground electrode disposed so as to face the capturing/inactivating-unit high-voltage electrode.
    Type: Application
    Filed: October 18, 2012
    Publication date: July 24, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Koji Ota, Yasutaka Inanaga, Akira Morikawa, Takahiro Sakai
  • Patent number: 8738313
    Abstract: An apparatus is realized which is capable of shortening the updating period of the measurement of a specific channel and lengthening the updating period of the measurement for another channel, thereby making the measurements for all the channels possible. The measurement apparatus includes a multiplexer that sequentially switches between analog input signals of a plurality of channels and internal calibration signals; an analog-to-digital converter that converts the signals from an analog to digital form; and a digital processor to which the signals are input, wherein the digital processor includes a sequence operation unit for sequentially switching between a combination of a channel for which a high-speed update is necessary and another channel, and the internal calibration signal among the input signals of the plurality of channels and supplying, to the multiplexer, an operation signal that is input to the AD converter.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: May 27, 2014
    Assignee: Yokogawa Electric Corporation
    Inventor: Koji Ota
  • Publication number: 20130313729
    Abstract: A humidifier includes a first electrode that is a porous metal body having a three-dimensional porous structure, a second electrode that is a conductor electrode arranged opposite to the first electrode with a space of a predetermined distance from the first electrode, a power supply that forms an electric field in the space between the first electrode and the second electrode, a water supply unit that supplies water to the first electrode, and a fan that sends air to the space to evaporate and disperse the water that is supplied from the water supply unit to the first electrode and retained by the first electrode.
    Type: Application
    Filed: August 20, 2012
    Publication date: November 28, 2013
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takahiro Sakai, Akira Morikawa, Koji Ota, Yasutaka Inanaga, Yasuhiro Tanimura, Hiroshi Tsutsumi
  • Publication number: 20130298851
    Abstract: An internal combustion engine has a cylinder-head-passage through which an engine coolant flows toward a water jacket when a water pump is operated. The water pump is an electric water pump utilizing the electric power charged in the battery. A radiator is provided in the cylinder-head-passage. Even after the engine is shut off, the water pump is kept driven.
    Type: Application
    Filed: July 17, 2013
    Publication date: November 14, 2013
    Inventors: Michio NISHIKAWA, Nobuharu Kakehashi, Koji Ota
  • Patent number: 8550706
    Abstract: There is provided a temperature measuring device capable of achieving cost reduction even in the case where the same is a multichannel temperature measuring device. The temperature-measuring device comprises a thermocouple having two dissimilar metal wires, ends thereof, on one-side, being joined with each other, and the other ends thereof, being connected to one pair of contact terminals, respectively, a unit of a temperature-measurement set made up by joining together a plurality of the thermocouples, and a reference junction compensation circuit provided for every unit of the temperature-measurement set, wherein at least one of the reference junction compensation circuits of the temperature-measuring device is left out while the other reference junction compensation circuits of the temperature-measuring device are removed upon a plurality of the units of the temperature-measurement sets being disposed in series.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: October 8, 2013
    Assignee: Yokogawa Electric Corporation
    Inventor: Koji Ota
  • Patent number: 8460435
    Abstract: An apparatus for producing high-concentration ozone gas has a plurality of adsorption/desorption columns and a plurality of valves capable of switching opening/closing of the passage of gas flowing into or out of the adsorption/desorption columns, such that each of the adsorption/desorption columns can performs ozone adsorption processing, evacuation processing or desorption processing. At least two of the adsorption/desorption columns are placed in a serial cycle arrangement to constitute a main adsorption/desorption column group, and one or more of the other adsorption/desorption columns is placed in parallel with the main adsorption/desorption column group to constitute an auxiliary adsorption/desorption column. The auxiliary adsorption/desorption column performs desorption processing during a period in which none of the adsorption/desorption columns of the main adsorption/desorption column group is performing desorption processing.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: June 11, 2013
    Assignees: Toshiba Mitsubishi-Electric Industrial Systems Corporation, Mitsubishi Electric Corporation
    Inventors: Yoichiro Tabata, Yujiro Okihara, Tetsuya Saitsu, Noriyuki Nakamura, Ryohei Ueda, Koji Ota, Yasuhiro Tanimura
  • Patent number: 8409520
    Abstract: Provided is an ozone concentrator including an ozone generator (3), adsorption/desorption columns (4) in which silica gel (6) cooled with a certain-temperature refrigerant (25) for concentrating ozone generated by the ozone generator (3) is packed, a refrigerating machine (23) for cooling the refrigerant (25), a vacuum pump (20) for enhancing a concentration of the ozone in one of the adsorption/desorption columns (4) by discharging mainly oxygen from the silica gel (6) adsorbing the ozone, a plurality of valves (8) to (13) for air pressure operations, for switching passages of gas that is allowed to flow in or flow out with respect to the adsorption/desorption columns (4), and ozone concentration meters (28, 29) for measuring the concentration of the ozone enhanced by the vacuum pump (20), in which a discharge line of the vacuum pump (20) is connected to another one of the adsorption/desorption columns (4), whereby the ozone is allowed to pass through another one of the adsorption/desorption columns again.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: April 2, 2013
    Assignees: Mitsubishi Electric Corporation, Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Koji Ota, Yasuhiro Tanimura, Yoichiro Tabata, Yujiro Okihara, Tetsuya Saitsu, Noriyuki Nakamura, Ryohei Ueda