Patents by Inventor Ryo Oya

Ryo Oya 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: 11462659
    Abstract: Provided is a semiconductor light emitting device including a growth substrate; a pillar-shaped semiconductor layer formed on the growth substrate; and a buried semiconductor layer formed to cover the pillar-shaped semiconductor layer, wherein the pillar-shaped semiconductor layer has an n-type nanowire layer formed at a center, an active layer formed on an outermore side than the n-type nanowire layer, a p-type semiconductor layer formed on an outermore side than the active layer and a tunnel junction layer formed on an outermore side than the p-type semiconductor layer, and wherein at least a part of the pillar-shaped semiconductor layer is provided with a removed region formed by removing from the buried semiconductor layer to a part of the tunnel junction layer.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: October 4, 2022
    Assignees: KOITO MANUFACTURING CO., LTD., MEIJO UNIVERSITY, TOYODA GOSEI CO., LTD.
    Inventors: Satoshi Kamiyama, Tetsuya Takeuchi, Motoaki Iwaya, Isamu Akasaki, Lu Weifang, Naoki Sone, Kazuyoshi Iida, Ryo Nakamura, Masaki Oya
  • Publication number: 20220218541
    Abstract: A control device of a vehicle is installed in a vehicle including: a body having a vehicle cabin and a floor panel constituting a floor of the vehicle cabin; a door opening-closing mechanism that drives a door mounted on the body to open and close; and a slope deploying mechanism that deploys a slope plate housed under the floor panel to the outside of the body. The control device coordinates the operation of the door opening-closing mechanism and the slope deploying mechanism. The control device opens the door by the door opening-closing mechanism after deploying the slope plate toward the outside of the body by the slope deploying mechanism.
    Type: Application
    Filed: January 7, 2022
    Publication date: July 14, 2022
    Inventors: Kentaro Oya, Ryo Kanda, Seiji Kanda, Masaaki Tanaka, Naoya Ishida, Chihiro Date
  • Patent number: 10508845
    Abstract: A refrigeration cycle system includes: a first refrigeration cycle apparatus which is connected to a first compressor, a first condenser, a first pressure reduction device, and a first evaporator and through which the refrigerant circulates; a second refrigeration cycle apparatus which is connected to a second compressor, a second condenser, and a second pressure reduction device, and a second evaporator; a first bypass passage connecting a portion between the first evaporator and the first compressor to a portion between the second evaporator and the second compressor; and a second bypass passage connecting a portion between the first condenser and the first pressure reduction device to a portion between the second condenser and the second pressure reduction device.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: December 17, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takao Nagae, Ryo Oya
  • Patent number: 9909792
    Abstract: A refrigeration cycle apparatus includes a compressor, a water-refrigerant heat exchanger, pressure reducing devices which reduce the pressure of a refrigerant, an air-side heat exchanger, an outdoor fan which delivers air to the air-side heat exchanger, a geothermal-side heat exchanger, a switching device which switches a flow passage so that the air-side heat exchanger or the geothermal-side heat exchanger functions as an evaporator, and a controller. The controller controls the switching device so that, when the geothermal-side heat exchanger functions as an evaporator, the air-side heat exchanger and the water-refrigerant heat exchanger are connected in parallel, and stops the outdoor fan.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: March 6, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventor: Ryo Oya
  • Patent number: 9897349
    Abstract: A refrigeration cycle apparatus includes: a refrigeration cycle circuit including a compressor, a four-way valve, a heat source side heat exchanger, a heat source side pressure-reducing mechanism, an indoor side pressure-reducing mechanism, and an indoor side heat exchanger, and a hot water supply refrigerant circuit branching off from between the compressor and the four-way valve, including a hot water supply side heat exchanger and a hot water supply side pressure-reducing mechanism in order, and connected between the heat source side pressure-reducing mechanism and the indoor side pressure-reducing mechanism, wherein when a refrigerant state value on at least one of a low pressure side of the refrigeration cycle circuit and a discharge side of the compressor becomes a refrigerant collection start state value, a refrigerant collecting operation that collects refrigerant accumulated in the hot water supply refrigerant circuit into the refrigeration cycle circuit is started.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: February 20, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shogo Tamaki, Ryo Oya
  • Publication number: 20180031287
    Abstract: A refrigeration cycle system includes: a first refrigeration cycle apparatus which is connected to a first compressor, a first condenser, a first pressure reduction device, and a first evaporator and through which the refrigerant circulates; a second refrigeration cycle apparatus which is connected to a second compressor, a second condenser, and a second pressure reduction device, and a second evaporator; a first bypass passage connecting a portion between the first evaporator and the first compressor to a portion between the second evaporator and the second compressor; and a second bypass passage connecting a portion between the first condenser and the first pressure reduction device to a portion between the second condenser and the second pressure reduction device.
    Type: Application
    Filed: June 2, 2015
    Publication date: February 1, 2018
    Inventors: Takao NAGAE, Ryo OYA
  • Publication number: 20170328621
    Abstract: An air-conditioning system capable of suppressing power consumption and maintaining the indoor temperature at a constant level includes a refrigerant circuit in which a compressor, a heat source-side heat exchanger, an expansion device, and a load-side heat exchanger are sequentially connected via a pipe, an inverter that drives the compressor, an indoor temperature sensor that detects an indoor temperature, and a controller that receives a thermostat ON signal and a thermostat OFF signal and controls the inverter according to the thermostat ON signal and the thermostat OFF signal. The controller assumes, upon receipt of the thermostat OFF signal, that the indoor temperature detected at that time is a target temperature, and regulates an output frequency of the inverter so as to maintain a difference between the indoor temperature and the target temperature in a predetermined range.
    Type: Application
    Filed: February 18, 2015
    Publication date: November 16, 2017
    Inventors: Takao NAGAE, Ryo OYA
  • Patent number: 9797605
    Abstract: A heat pump system adjusts a degree of subcooling of an indoor-side heat exchanger in a heating priority mode, and adjusts any one of a degree of subcooling of a hot-water supply-side heat exchanger (water-side heat exchanger) and a discharge temperature of a compressor in a hot-water supply priority mode.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: October 24, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shogo Tamaki, Ryo Oya
  • Patent number: 9644876
    Abstract: A refrigeration cycle apparatus simultaneously performs a cooling operation mode in which a refrigerant from a compressor is caused to flow to an indoor heat exchanger of an indoor unit having a cooling load, and a hot water supply operation mode in which a refrigerant from the compressor is caused to flow to a water heat exchanger of a hot water supply unit having a hot water supply demand. An operation control part switches the control mode of the simultaneous cooling and heating and hot water supply operation mode between a cooling-prioritized mode and a hot-water-supply-prioritized mode according to the relationship between the cooling load and the hot water supply load.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 9, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shogo Tamaki, Makoto Saito, Ryo Oya
  • Patent number: 9631847
    Abstract: The volume ratio of a hot-water-supply-side liquid extension pipe to a water heat exchanger is set to be equal to or more than the minimum volume ratio, which is the volume ratio of the hot-water-supply-side liquid extension pipe to the water heat exchanger when the required refrigerant amount during a cooling and hot water supply simultaneous operation in which an indoor-side heat exchanger serves as an evaporator, the water heat exchanger serves as a condenser, cooling energy is supplied from the indoor-side heat exchanger, and heating energy is supplied from the water heat exchanger is equal to the required refrigerant amount during a heating operation in which a heat-source-side heat exchanger serves as an evaporator, the indoor-side heat exchanger serves as a condenser, and heating energy is supplied from the indoor-side heat exchanger.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: April 25, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shogo Tamaki, Makoto Saito, Ryo Oya
  • Patent number: 9500376
    Abstract: When using a plurality of heaters such as heat pump units, capacity is properly distributed according to the required capacity, thereby enabling highly efficient operation of a hot water system. To achieve this, a control apparatus determines the heating capacity of each of the heat pump units in a way that the total heating capacity of the heat pump units reaches the heating capacity required in the hot water system as a whole, and further in a way that the total COP (coefficient of performance) of the heat pump units satisfies predetermined condition. The control apparatus controls each of regulating valves in a way that the heating capacity of each of the heat pump units reaches the above determined heating capacity.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: November 22, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hirokazu Minamisako, Shinichi Uchino, Kengo Takahashi, Ryo Oya, Kazuki Okada, Takahiro Ushijima
  • Patent number: 9377224
    Abstract: A heat pump apparatus includes a heat source unit that cools or heats a refrigerant, an indoor unit that performs a cooling operation, and a hot water supply unit that performs a hot water supply operation. When there is an operation request for one of the indoor unit and the hot water supply unit, even when there is no operation request for the other, the heat pump apparatus causes both the one and the other to operate if the other satisfies a certain condition so that the hot water supply unit performs a hot water supply operation by utilizing a refrigerant heated by performing a cooling operation in the indoor unit and the indoor unit performs a cooling operation by utilizing a refrigerant cooled by performing a hot water supply operation in the hot water supply unit.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: June 28, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shogo Tamaki, Makoto Saito, Masanobu Baba, Ryo Oya
  • Publication number: 20160116191
    Abstract: A refrigeration cycle apparatus includes a refrigeration cycle circuit including a compressor, a four-way valve, a heat source side heat exchanger, a heat source side pressure-reducing mechanism, an indoor side pressure-reducing mechanism, and an indoor side heat exchanger, and a hot water supply refrigerant circuit branching off from between the compressor and the four-way valve, including a hot water supply side heat exchanger and a hot water supply side pressure-reducing mechanism in order, and connected between the heat source side pressure-reducing mechanism and the indoor side pressure-reducing mechanism, wherein when a refrigerant state value on at least one of a low pressure side of the refrigeration cycle circuit and a discharge side of the compressor becomes a refrigerant collection start state value, a refrigerant collecting operation that collects refrigerant accumulated in the hot water supply refrigerant circuit into the refrigeration cycle circuit is started.
    Type: Application
    Filed: May 24, 2013
    Publication date: April 28, 2016
    Inventors: Shogo TAMAKI, Ryo OYA
  • Patent number: 9228765
    Abstract: A refrigeration cycle device includes a first refrigerant passage in which a compressor, a first solenoid valve, a four-way valve, an outdoor heat exchanger, a pressure reducing device, an indoor heat exchanger, and an accumulator are sequentially connected through pipes; a second refrigerant passage in which a second solenoid valve and a water refrigerant heat exchanger are sequentially connected to a pipe that connects a portion of a pipe between the compressor and the first solenoid valve to the pressure reducing device; heating means for heating a shell of the compressor; and a controller that performs control so as to close the first solenoid valve and the second solenoid valve in association with an operation of the compressor being stopped and so as to open the first solenoid valve when the heating means heats the compressor.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 5, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventor: Ryo Oya
  • Publication number: 20150330675
    Abstract: A heat pump system adjusts a degree of subcooling of an indoor-side heat exchanger in a heating priority mode, and adjusts any one of a degree of subcooling of a hot-water supply-side heat exchanger (water-side heat exchanger) and a discharge temperature of a compressor in a hot-water supply priority mode.
    Type: Application
    Filed: January 7, 2013
    Publication date: November 19, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shogo TAMAKI, Ryo OYA
  • Publication number: 20150219371
    Abstract: A compressor, a water-refrigerant heat exchanger, pressure reducing devices which reduce the pressure of a refrigerant, an air-side heat exchanger, an outdoor fan which delivers air to the air-side heat exchanger, a geothermal-side heat exchanger, a switching device which switches a flow passage so that the air-side heat exchanger or the geothermal-side heat exchanger functions as an evaporator, and controller for controlling the switching device so that, when the geothermal-side heat exchanger functions as an evaporator, the air-side heat exchanger and the water-refrigerant heat exchanger are connected in parallel, and for stopping the outdoor fan, are provided.
    Type: Application
    Filed: October 29, 2014
    Publication date: August 6, 2015
    Inventor: Ryo OYA
  • Publication number: 20150040595
    Abstract: A refrigeration cycle apparatus simultaneously performs a cooling operation mode in which a refrigerant from a compressor is caused to flow to an indoor heat exchanger of an indoor unit having a cooling load, and a hot water supply operation mode in which a refrigerant from the compressor is caused to flow to a water heat exchanger of a hot water supply unit having a hot water supply demand. An operation control part switches the control mode of the simultaneous cooling and heating and hot water supply operation mode between a cooling-prioritized mode and a hot-water-supply-prioritized mode according to the relationship between the cooling load and the hot water supply load.
    Type: Application
    Filed: March 15, 2012
    Publication date: February 12, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shogo Tamaki, Makoto Saito, Ryo Oya
  • Publication number: 20140345310
    Abstract: The volume ratio of a hot-water-supply-side liquid extension pipe to a water heat exchanger is set to be equal to or more than the minimum volume ratio, which is the volume ratio of the hot-water-supply-side liquid extension pipe to the water heat exchanger when the required refrigerant amount during a cooling and hot water supply simultaneous operation in which an indoor-side heat exchanger serves as an evaporator, the water heat exchanger serves as a condenser, cooling energy is supplied from the indoor-side heat exchanger, and heating energy is supplied from the water heat exchanger is equal to the required refrigerant amount during a heating operation in which a heat-source-side heat exchanger serves as an evaporator, the indoor-side heat exchanger serves as a condenser, and heating energy is supplied from the indoor-side heat exchanger.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 27, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shogo Tamaki, Makoto Saito, Ryo Oya
  • Publication number: 20130269380
    Abstract: A refrigeration cycle device includes a first refrigerant passage in which a compressor, a first solenoid valve, a four-way valve, an outdoor heat exchanger, a pressure reducing device, an indoor heat exchanger, and an accumulator are sequentially connected through pipes; a second refrigerant passage in which a second solenoid valve and a water refrigerant heat exchanger are sequentially connected to a pipe that connects a portion of a pipe between the compressor and the first solenoid valve to the pressure reducing device; heating means for heating a shell of the compressor; and a controller that performs control so as to close the first solenoid valve and the second solenoid valve in association with an operation of the compressor being stopped and so as to open the first solenoid valve when the heating means heats the compressor.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 17, 2013
    Applicant: Mitsubishi Electric Corporation
    Inventor: Ryo OYA
  • Patent number: D797269
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: September 12, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Jumpei Kudo, Tatsunori Sakai, Kota Morimoto, Ryo Oya, Haruo Nakano, Shigeru Hata, Yo Kitabatake