Patents by Inventor Yasumitsu Omi

Yasumitsu Omi 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).

  • Publication number: 20190214695
    Abstract: A device temperature controller includes a heat absorber that absorbs heat from a temperature control target device to evaporate working fluid in liquid phase, and a condenser disposed above the heat absorber to condense the working fluid which has been evaporated into gas phase at the heat absorber. The device temperature controller includes a gas passage portion that guides the working fluid which has been evaporated into gas phase at the heat absorber to the condenser, and a liquid passage portion that guides the working fluid which has been condensed into liquid phase at the condenser to the heat absorber. At least a part of the gas passage portion and at least a part of the liquid passage portion are in contact with each other.
    Type: Application
    Filed: March 13, 2019
    Publication date: July 11, 2019
    Inventors: Koji MIURA, Yasumitsu OMI, Takeshi YOSHINORI, Masayuki TAKEUCHI, Takashi YAMANAKA, Yoshiki KATO
  • Publication number: 20190204014
    Abstract: An evaporator includes a fluid chamber in which a working fluid flows. A condenser includes a gas-phase portion in which the working fluid evaporated in the evaporator flows and a liquid-phase portion in which the working fluid from the gas-phase portion, condensed by heat exchange with an external medium, flows. A gas-phase passage causes the working fluid evaporated in the evaporator to flow to the condenser. A liquid-phase passage causes the working fluid condensed in the condenser to flow to the evaporator. A bypass passage has one end connected to the liquid-phase portion of the condenser or the liquid-phase passage and another end connected to the gas-phase portion of the condenser or the gas-phase passage. A flow rate of a liquid-phase working fluid per unit volume in the bypass passage is smaller than a flow rate of a liquid-phase working fluid per unit volume in the liquid-phase portion of the condenser or the liquid-phase passage.
    Type: Application
    Filed: August 2, 2017
    Publication date: July 4, 2019
    Inventors: Takeshi YOSHINORI, Takashi YAMANAKA, Yoshiki KATO, Masayuki TAKEUCHI, Koji MIURA, Yasumitsu OMI
  • Publication number: 20190193213
    Abstract: A method for manufacturing a device temperature controller includes filling an inside of a circuit with working fluid by connecting a filling port of the circuit to a container that stores gas phase working fluid. The circuit constitutes a thermosiphon heat pipe and allows the working fluid to circulate in the circuit. In the filling, the working fluid inside the circuit is cooled by a cooling source. An inside temperature of the circuit is decreased to be lower than an inside temperature of the container, and thereby an inside pressure of the circuit is decreased to be lower than an inside pressure of the container.
    Type: Application
    Filed: March 6, 2019
    Publication date: June 27, 2019
    Inventors: Yasumitsu OMI, Takashi YAMANAKA, Yoshiki KATO, Takeshi YOSHINORI, Masayuki TAKEUCHI, Koji MIURA
  • Publication number: 20190198954
    Abstract: A device temperature regulator is provided with a device heat exchanger that functions as an evaporator at the time of cooling a temperature regulation target device and that functions as a heat radiator at the time of warming up the temperature regulation target device, and a condenser that condenses a gaseous working fluid. The device temperature regulator is provided with a heater that heats the working fluid collecting in a device fluid circuit, and a liquid amount regulator that regulates a liquid amount of the working fluid collecting in the device heat exchanger. The device heat exchanger includes a heat exchange portion that exchanges heat with the temperature regulation target device. The liquid amount regulator regulates the liquid amount of the liquid working fluid collecting in the device heat exchanger.
    Type: Application
    Filed: March 6, 2019
    Publication date: June 27, 2019
    Inventors: Koji MIURA, Yasumitsu OMI, Masayuki TAKEUCHI, Takeshi YOSHINORI, Takashi YAMANAKA, Yoshiki KATO
  • Publication number: 20190184852
    Abstract: A device temperature adjusting apparatus in which working fluid circulates is mounted on a vehicle and controls a temperature of a target device. The device temperature adjusting apparatus includes a heat absorbing portion that evaporates the working fluid by causing the working fluid to absorb heat from the target device, and a heat releasing portion condenses the working fluid by causing heat release from the working fluid. The device temperature adjusting apparatus includes a forward path portion that defines a forward flow passage and a return path portion. The heat releasing portion is disposed in an inside air circulation path through which inside air circulates while vehicle interior air conditioning is performed by an air conditioning unit that blows out temperature-controlled air to an interior of the vehicle.
    Type: Application
    Filed: February 26, 2019
    Publication date: June 20, 2019
    Inventors: Masayuki TAKEUCHI, Yasumitsu OMI, Takashi YAMANAKA, Yoshiki KATO, Takeshi YOSHINORI, Koji MIURA
  • Publication number: 20190190102
    Abstract: A device temperature regulator is provided with a gas passage part that guides a gaseous working fluid evaporated in a device heat exchanger to a condenser, and a liquid passage part that guides a liquid working fluid condensed in the condenser to the device heat exchanger. The device temperature regulator is provided with a supply amount regulator that increases or decreases a supply amount of the liquid working fluid supplied to the device heat exchanger. The supply amount regulator decreases the supply amount of the liquid working fluid to the device heat exchanger such that a liquid surface is formed in a state where the gaseous working fluid is positioned at a lower side lower than a heat exchanging portion exchanging heat with a temperature regulation target device in the device heat exchanger, when a condition for keeping the temperature regulation target device at a temperature is satisfied.
    Type: Application
    Filed: February 26, 2019
    Publication date: June 20, 2019
    Inventors: Koji MIURA, Takashi YAMANAKA, Yasumitsu OMI, Yoshiki KATO, Masayuki TAKEUCHI, Takeshi YOSHINORI
  • Publication number: 20190186843
    Abstract: A device temperature regulator includes a forward passage in which a forward flow passage is formed to cause a working fluid to flow to a heat absorber from a heat radiator, and a backward passage in which a backward flow passage is formed to cause the working fluid to flow to the heat radiator from the heat absorber. In addition, the device temperature regulator includes a bubble generator, which generates a bubble in the working fluid collecting in the heat absorber and having a liquid phase, and a controller that causes the bubble generator to generate the bubble in a precondition is satisfied.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Inventors: Masayuki TAKEUCHI, Yasumitsu OMI, Takashi YAMANAKA, Yoshiki KATO, Takeshi YOSHINORI, Koji MIURA
  • Publication number: 20190160910
    Abstract: The sealing member includes a first sealing part and a second sealing part and a joining part connecting together the first sealing part and the second sealing part. The first sealing part extends to surround a peripheral edge of the first opening hole on the main body inner peripheral surface side. The second sealing part extends to surround a peripheral edge of the second opening hole on the main body inner peripheral surface side. The joining part is placed at a position where a mutual interval between the first sealing part and the second sealing part is the smallest in the circumferential direction. Each of the first joining end portion and the second joining end portion of the joining part is pressed outward in the valve radial direction by the valve body outer peripheral surface to be resiliently deformed.
    Type: Application
    Filed: April 13, 2017
    Publication date: May 30, 2019
    Inventors: Takamitsu MANO, Yasumitsu OMI, Kenichi MOCHIZUKI, Takayuki MATSUMOTO
  • Publication number: 20190047360
    Abstract: A vehicular temperature regulation device includes a refrigeration cycle, a high-temperature cycle, and a low-temperature cycle. The refrigeration cycle includes a heating heat exchanger configured to heat the heat medium in the high-temperature cycle by exchanging heat between the refrigerant and the heat medium, and a cooling heat exchanger configured to cool the heat medium in the low-temperature cycle by exchanging heat between the refrigerant and the heat medium. The vehicular temperature regulation device includes a connection portion that connects the high-temperature cycle and the low-temperature cycle, a regulation portion configured to regulate a flow of the heat medium, and a controller. After the controller stops the compressor, or after the controller receives a stop command of stopping the compressor, the controller controls the regulation portion, a first pump, and a second pump to exchange the heat medium between the high-temperature cycle and the low-temperature cycle.
    Type: Application
    Filed: September 5, 2016
    Publication date: February 14, 2019
    Inventors: Hiroshi KISHITA, Keigo SATOU, Yasumitsu OMI, Kouji TAKAHASHI
  • Patent number: 10144297
    Abstract: Charging of an electrical storage device is completed by operation-starting time while increasing a percentage of a charging time of the electrical storage device in a first time period as compared to a percentage of the charging time in a second time period when the first time period and the second time period are included within a period from when a user sets the operation-starting time to the operation-starting time. A temperature adjustment device is operated such that a temperature of the electrical storage device at the operation-starting time falls within a target temperature range while increasing a percentage of an operating time of the temperature adjustment device in the first time period as compared to a percentage of the operating time in the second time period when the first time period and the second time period are included within the period from when the user sets the operation-starting time to the operation-starting time.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: December 4, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Murata, Yasumitsu Omi, Takashi Yamanaka, Masayuki Takeuchi
  • Publication number: 20180264913
    Abstract: A thermal management system for a vehicle includes an engine cooling circuit that causes a heat medium to circulate through an engine, and an engine radiator that exchanges heat between the heat medium in the engine cooling circuit and outside air. The thermal management system for a vehicle further includes a switching device that switches between an independent mode in which the heat medium circulates respectively independently through a cooler cooling circuit and the engine cooling circuit, and a communication mode in which the cooler cooling circuit and the engine cooling circuit communicate with each other to cause the heat medium to flow between a chiller and the engine radiator; and a controller that controls an operation of the switching device to switch to the communication mode when a temperature of the heat medium in the engine cooling circuit is lower than a first heat-medium temperature.
    Type: Application
    Filed: January 26, 2016
    Publication date: September 20, 2018
    Inventors: Norihiko ENOMOTO, Nobuharu KAKEHASHI, Yasumitsu OMI
  • Patent number: 10065478
    Abstract: A thermal management system for a vehicle includes a high-temperature side pump that draws and discharges a heat medium, a compressor that draws and discharges a refrigerant in a refrigeration cycle, a high-pressure side heat exchanger that exchanges heat between a high-pressure side refrigerant in the refrigeration cycle and the heat medium circulated by the high-temperature side pump, a heat medium-outside air heat exchanger that exchanges heat between the heat medium circulated by the high-temperature side pump and outside air, and a pump control unit that controls an operation of the high-temperature side pump such that the operation of the high-temperature side pump is continued even after the compressor is stopped. Thus, the cycle efficiency exhibited when restarting the compressor can be improved.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: September 4, 2018
    Assignee: DENSO CORPORATION
    Inventors: Masamichi Makihara, Takashi Yamanaka, Yasumitsu Omi, Koji Miura, Norihiko Enomoto, Nobuharu Kakehashi
  • Patent number: 10069179
    Abstract: A battery case within which a battery is housed includes a first layer that is made of metal, a second layer that is made of heat insulating material, and a third layer that is made of phase-change heat storage material. The second layer is closer to the battery than the first layer is. The third layer is closer to the battery than the second layer is.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: September 4, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Murata, Yasumitsu Omi
  • Publication number: 20170326949
    Abstract: An air conditioner for a vehicle includes a first heat exchanger that exchanges heat between a refrigerant in a refrigeration cycle and a heat medium, a second heat exchanger that exchanges heat between air to be blown into a vehicle interior space and the heat medium, and a casing disposed in the vehicle interior space to form an air passage through which the air flows and to accommodate the second heat exchanger. The first heat exchanger is disposed under the casing, and a partition wall for partitioning an engine room from the vehicle interior space is interposed between the first heat exchanger and the casing.
    Type: Application
    Filed: October 19, 2015
    Publication date: November 16, 2017
    Inventor: Yasumitsu OMI
  • Patent number: 9796241
    Abstract: A vehicle temperature control apparatus for controlling temperature of a temperature control object, which is at least one of inside air of a vehicle compartment and a vehicle component, includes a heat capacitive element capable of storing heat, a refrigeration cycle in which heat is absorbed from a low temperature side and is dissipated to a high temperature side, a heat exchanger that causes the heat capacitive element to exchange heat with refrigerant of the refrigeration cycle, and a heat dissipation portion which dissipates heat in the refrigerant of the refrigeration cycle to the temperature control object. Thus, a temperature control by using the heat capacitive element can be effectively performed.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: October 24, 2017
    Assignee: DENSO CORPORATION
    Inventors: Masayuki Takeuchi, Hiroshi Kishita, Yasumitsu Omi, Nobuharu Kakehashi, Hideaki Okawa, Kouji Miura, Michio Nishikawa
  • Patent number: 9770961
    Abstract: A temperature control system includes an on-vehicle battery, on-vehicle air conditioner, and a controller. The on-vehicle battery is charged using an external power supply located outside of the vehicle. The on-vehicle air conditioner controls the temperature of the vehicle interior and the temperature of the on-vehicle battery. The controller operates the on-vehicle air conditioner in an intermittent operation mode so as to control the temperature of the on-vehicle battery, when the on-vehicle battery is charged using the external power supply.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: September 26, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Murata, Yasumitsu Omi, Takashi Yamanaka, Masayuki Takeuchi
  • Patent number: 9748614
    Abstract: A battery temperature regulating device is applied to a battery pack configured by parallely connecting battery groups, each of which is a series connection of battery cells capable of charge and discharge. The device regulates temperatures of the battery groups. The battery temperature regulating device includes a heat transfer unit that transfers heat of a part of the battery groups to another battery group.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: August 29, 2017
    Assignee: DENSO CORPORATION
    Inventors: Hideaki Okawa, Hiroshi Kishita, Yasumitsu Omi, Masayuki Takeuchi, Nobuharu Kakehashi, Kouji Miura
  • Patent number: 9604627
    Abstract: A controller of a thermal management system for a vehicle controls a first switching valve and a second switching valve to set a battery warming-up state in which a heat medium circulates between a battery-temperature adjustment heat exchanger and a heat-medium heating heat exchanger, and the heat medium does not circulate between a coolant-coolant heat exchanger and a heat-medium heating heat exchanger when both a battery and an engine need to be warmed up. In contrast, the controller controls the first switching valve and the second switching valve to set an engine warming-up state in which the heat medium circulates through between the coolant-coolant heat exchanger and the heat-medium heating heat exchanger while the heat medium does not circulate between a battery-temperature adjustment heat exchanger and the heat-medium heating heat exchanger when a temperature of the battery exceeds a target battery warming-up temperature in the battery warming-up state.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: March 28, 2017
    Assignee: DENSO CORPORATION
    Inventors: Takashi Yamanaka, Yasumitsu Omi, Koji Miura, Norihiko Enomoto
  • Patent number: 9561704
    Abstract: First circulation portions switch a flow of a heat transfer medium such that one of the heat transfer media for two systems selectively circulates through a radiator flow path or a first bypass flow path. Second circulation portions switch the flow of the heat transfer medium such that the heat transfer media for the two systems selectively circulate with respect to a second flow path group. The first circulation portions and the second circulation portions are adapted to switch the flow of the heat transfer medium so as to form a first circulation circuit for allowing the heat transfer medium to circulate among a first flow path group, the second flow path group, and a first pump, as well as a second circulation circuit for allowing the heat transfer medium to circulate among the first flow path group, the second flow path group, and a second pump.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: February 7, 2017
    Assignee: DENSO CORPORATION
    Inventors: Norihiko Enomoto, Nobuharu Kakehashi, Michio Nishikawa, Yasumitsu Omi, Takashi Yamanaka, Masayuki Takeuchi
  • Publication number: 20170008373
    Abstract: A thermal management system for a vehicle includes a high-temperature side pump that draws and discharges a heat medium, a compressor that draws and discharges a refrigerant in a refrigeration cycle, a high-pressure side heat exchanger that exchanges heat between a high-pressure side refrigerant in the refrigeration cycle and the heat medium circulated by the high-temperature side pump, a heat medium-outside air heat exchanger that exchanges heat between the heat medium circulated by the high-temperature side pump and outside air, and a pump control unit that controls an operation of the high-temperature side pump such that the operation of the high-temperature side pump is continued even after the compressor is stopped. Thus, the cycle efficiency exhibited when restarting the compressor can be improved.
    Type: Application
    Filed: February 23, 2015
    Publication date: January 12, 2017
    Inventors: Masamichi MAKIHARA, Takashi YAMANAKA, Yasumitsu OMI, Koji MIURA, Norihiko ENOMOTO, Nobuharu KAKEHASHI