Patents by Inventor Hiroaki Kawano

Hiroaki Kawano 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: 20240010045
    Abstract: In an air conditioner, a heat medium circuit includes: a first branch part, a first merging part, a second branch part, and a second merging part. A first flow rate adjusting unit is disposed in the heat medium circuit between the first branch part and an outside-air heat exchanger or between the outside-air heat exchanger and the first merging part, and a second flow rate adjusting unit is disposed in the heat medium circuit between the first branch part and the first heater core or between the first heater core and the first merging part. At least one of the first flow rate adjusting unit or the second flow rate adjusting unit is configured to optionally adjust the flow rate of the heat medium, and a controller controls the at least one of the first flow rate adjusting unit or the second flow rate adjusting unit.
    Type: Application
    Filed: September 13, 2023
    Publication date: January 11, 2024
    Inventors: Naito MUTO, Yoshiki KATOH, Hiroaki KAWANO, Yukihisa IJUIN, Yoshinori ICHISHI, Yoshio HAYASHI, Junki HIRAYAMA, Yasuhiro YOKOO
  • Patent number: 11833887
    Abstract: A vehicular air conditioner includes a refrigeration cycle system, a high-temperature heat medium circuit, and a low-temperature heat medium circuit. The high-temperature heat medium circuit includes an air-heat medium heat exchanger, a heater core, a branching portion, a common passage, a flow rate adjuster, and an auxiliary heat source. The air-heat medium heat exchanger exchanges heat between the heat medium and an outside air. The heater core is arranged parallel to the air-heat medium heat exchanger and causes the heat medium to transfer heat to a ventilation air. The branching portion divides a flow of the heat medium into a flow toward the air-heat medium heat exchanger and a flow toward the heater core. The auxiliary heat source is arranged in the common passage at a position upstream of the branching portion.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: December 5, 2023
    Assignee: DENSO CORPORATION
    Inventors: Hiroaki Kawano, Yoshiki Kato, Masamichi Makihara, Takahiro Maeda, Kuniyoshi Tanioka, Toru Okamura, Naoya Makimoto
  • Publication number: 20230219398
    Abstract: A refrigeration cycle device includes a flow path switching unit configured to determine whether an outside-air heat absorption unit is required to be defrosted. The flow path switching unit is further configured to: cause a heat medium to circulate separately between a first circulation circuit configured to cause the heat medium to circulate through a heat source and a second circulation circuit configured to cause the heat medium to circulate between an evaporation unit and the outside-air heat absorption unit, when it is determined that the outside-air heat absorption unit is not required to be defrosted; and switch a flow path of the heat medium to cause the heat medium in the first circulation circuit to circulate through the outside-air heat absorption unit, when it is determined that the outside-air heat absorption unit is required to be defrosted.
    Type: Application
    Filed: March 16, 2023
    Publication date: July 13, 2023
    Inventors: Toru OKAMURA, Atsushi YAMADA, Yoshiki KATOH, Hiroaki KAWANO
  • Publication number: 20230052705
    Abstract: An air conditioner for a vehicle includes a refrigeration cycle, a heating unit and a control unit. The refrigeration cycle includes an air-conditioning evaporator, a chilling evaporator, an air-conditioning side flow path, a detour flow path and an air-conditioning flow rate adjustment unit. The control unit includes a determination unit that determines whether a condensation condition is satisfied when a refrigerant is flowing through the chilling evaporator via the detour flow path in a state where an inflow of a refrigerant into the air-conditioning evaporator is prohibited. When the determination unit determines that the condensation condition is satisfied, the control unit controls the air-conditioning flow rate adjustment unit to allow an inflow of a refrigerant into the air-conditioning evaporator as a condensation suppression operation for suppressing condensation of a refrigerant in the air-conditioning evaporator.
    Type: Application
    Filed: October 27, 2022
    Publication date: February 16, 2023
    Inventors: Kouji MIURA, Yoshiki KATOH, Masamichi MAKIHARA, Atsushi YAMADA, Kenta KAYANO, Hiroaki KAWANO, Tooru OKAMURA, Naoya MAKIMOTO
  • Publication number: 20230016470
    Abstract: A battery temperature control device includes a heating medium circuit that connects a battery heat exchanger, an outside air heat exchanger, a heating medium pump, and a flow rate regulating unit. The outside air heat exchanger is connected in parallel to the battery heat exchanger. The flow rate regulating unit adjusts a flow rate of the heating medium in a first path through which the heating medium flows via at least the outside air heat exchanger and a flow rate of the heating medium in a second path through which the heating medium flows by detouring around the outside air heat exchanger. The control unit controls the flow rate regulating unit to adjust a ratio between a flow rate of the heating medium in the first path and a flow rate of the heating medium in the second path.
    Type: Application
    Filed: September 27, 2022
    Publication date: January 19, 2023
    Inventors: Kouji MIURA, Yoshiki KATOH, Masamichi MAKIHARA, Atsushi YAMADA, Kenta KAYANO, Hiroaki KAWANO, Tooru OKAMURA, Naoya MAKIMOTO, Takahiro MAEDA
  • Publication number: 20220136747
    Abstract: A refrigeration cycle device includes a compressor configured to compress and discharge a refrigerant containing oil, a refrigerant radiator configured to heat the ventilation air using the refrigerant discharged from the compressor as a heat source during a room interior heating, a refrigerant decompression unit configured to decompress the refrigerant having passed through the refrigerant radiator, an evaporator configured to evaporate the refrigerant and to function as a heat absorber during the room interior heating; and a controller configured to control the refrigerant decompression unit and to perform a fluctuation operation at least during the room interior heating. In the fluctuation operation, a throttle opening degree of the refrigerant decompression unit is changed such that a refrigerant state on a refrigerant outlet side of the evaporator is alternately changed to a superheated state having a superheat degree and a wet state containing the wet vapor.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Inventors: Kouji INAGAKI, Daiki KATOU, Hiroaki KAWANO, Yoshiki KATOH, Naoya MAKIMOTO
  • Publication number: 20220011006
    Abstract: An air conditioner includes a heat pump cycle, a heating unit, a low-temperature side heat medium circuit, and a heat dissipation amount adjustment control unit. The heat pump cycle has a compressor, a condenser, a decompression unit, and an evaporator. The heating unit has a heating heat exchanger, an outside air radiator, and a heat dissipation amount adjustment unit. The low-temperature side heat medium circuit has a heat generation device. The heat dissipation amount adjustment control unit controls the heat dissipation amount adjustment unit to adjust a heat dissipation amount in the outside air radiator such that a blown air temperature of the blown air heated by the heating heat exchanger approaches a predetermined target temperature.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Inventors: Koji MIURA, Hiroaki KAWANO, Motohiro YAMAGUCHI, Kazuya TANIGUCHI, Yoshiki KATO, Masamichi MAKIHARA, Takahiro MAEDA, Kuniyoshi TANIOKA, Toru OKAMURA, Naoya MAKIMOTO, Atsushi YAMADA, Kenta KAYANO
  • Publication number: 20220009309
    Abstract: A refrigeration cycle device includes a heat pump cycle, a high-temperature heat medium circuit, and a low-temperature heat medium circuit. The low-temperature heat medium circuit includes a plurality of heat absorption devices configured to have a heat absorption amount to be absorbed by the low-temperature heat medium flowing out of a low-temperature heat medium-refrigerant heat exchanger, and a heat absorption adjusting unit configured to change the heat absorption amount of the low-temperature heat medium in the respective heat absorption devices.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Inventors: Koji MIURA, Hiroaki KAWANO, Motohiro YAMAGUCHI, Kazuya TANIGUCHI, Yoshiki KATO, Masamichi MAKIHARA, Takahiro MAEDA, Kuniyoshi TANIOKA, Toru OKAMURA, Naoya MAKIMOTO
  • Publication number: 20210316594
    Abstract: A vehicular air conditioner includes a refrigeration cycle system, a high-temperature heat medium circuit, and a low-temperature heat medium circuit. The high-temperature heat medium circuit includes an air-heat medium heat exchanger, a heater core, a branching portion, a common passage, a flow rate adjuster, and an auxiliary heat source. The air-heat medium heat exchanger exchanges heat between the heat medium and an outside air. The heater core is arranged parallel to the air-heat medium heat exchanger and causes the heat medium to transfer heat to a ventilation air. The branching portion divides a flow of the heat medium into a flow toward the air-heat medium heat exchanger and a flow toward the heater core. The auxiliary heat source is arranged in the common passage at a position upstream of the branching portion.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 14, 2021
    Inventors: Hiroaki KAWANO, Yoshiki KATO, Masamichi MAKIHARA, Takahiro MAEDA, Kuniyoshi TANIOKA, Toru OKAMURA, Naoya MAKIMOTO
  • Publication number: 20210127952
    Abstract: An endoscope hood having excellent antifogging properties and antifouling properties. The endoscope hood is configured to be mounted on an insertion side end of an endoscope. The endoscope hood comprises a cylindrical exterior portion and a disc portion provided in contact with an inner surface of the exterior portion. The exterior portion and the disc portion are formed integrally or separately. At least the disc portion is made of a hydrogel.
    Type: Application
    Filed: June 25, 2018
    Publication date: May 6, 2021
    Applicant: SEED CO., LTD.
    Inventors: Yoshinori MORITA, Toshihiro TAKAMATSU, Akitoshi OKINO, Hidekazu MIYAHARA, Hiroaki KAWANO, Haruka ITO, Shiori KANEDA, Toru MATSUNAGA, Takao SATO
  • Patent number: 10899198
    Abstract: A heater core for performing heat exchange between a coolant and ventilation air to be blown to the interior of a vehicle so as to heat the ventilation air is disposed in a water circulation circuit for circulating a coolant in an engine EG for outputting driving force necessary to move the vehicle. When the temperature of the coolant discharged from the engine EG is low, a heat transport refrigeration cycle device, serving as a heat transport unit for absorbing heat from a downstream coolant at a position downstream more than the heater core and dissipating the heat absorbed from the downstream coolant to an upstream coolant at a position upstream more than the heater core, is operated to increase the temperature of the coolant introduced into the heater core until the temperature of the coolant reaches the temperature necessary to heat the interior of the vehicle, without operation of the engine EG.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: January 26, 2021
    Assignee: DENSO CORPORATION
    Inventors: Michio Nishikawa, Atsushi Inaba, Hiroaki Kawano, Naoya Makimoto
  • Publication number: 20210007788
    Abstract: Provided is an end effector enabling the grasping of tissue and plasma radiation to tissue. This end effector comprises: a grasping member for grasping tissue; and a plasma generation mechanism capable of generating plasma. A pulling means is connected to the plasma generation mechanism, and by operation of the connected pulling means, grasping of tissue by the grasping means is achieved. The plasma generation means is configured so as to enable plasma to be radiated at the position where the grasping member grasps tissue.
    Type: Application
    Filed: March 25, 2019
    Publication date: January 14, 2021
    Inventors: Akitoshi OKINO, Hidekazu MIYAHARA, Hiroaki KAWANO, Yuta HAYASHI, Yuma SUENAGA, Toshihiro TAKAMATSU, Manabu KUROSAWA
  • Patent number: 10661631
    Abstract: A heat pump cycle includes a compressor, a first interior heat exchanger, a separator that separates a refrigerant discharged from the compressor into a gas-phase refrigerant which does not include a lubricant and a remaining refrigerant, an exterior heat exchanger that performs heat exchange between the remaining refrigerant flowing out of the separator and an outside air, a second interior heat exchanger, a control valve, an accumulator, and a first bypass passage that bypasses the second interior heat exchanger and connects to an inlet side of the accumulator. The heat pump cycle heats an air flow in the first interior heat exchanger and controls the control valve to reduce the pressure of the refrigerant, in a state where the refrigerant circulates in a refrigerant circuit including the first bypass passage while accumulating the gas-phase refrigerant flowing out of the separator in the second interior heat exchanger.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: May 26, 2020
    Assignee: DENSO CORPORATION
    Inventor: Hiroaki Kawano
  • Patent number: 10451327
    Abstract: A refrigeration cycle device includes a charged-amount determination unit that executes a charged-amount determination to determine whether the refrigeration cycle device is in a refrigerant shortage state or not, a compressor control unit that controls a compressor, and a decompression control unit that controls a throttle opening degree of a decompression device. The charged-amount determination unit determines that the refrigeration cycle device is in the refrigerant shortage state when a heat dissipation capacity of a radiator shows a tendency to decrease in a case where the decompression control unit decreases a throttle opening degree of the decompression device while the compressor control unit operates the compressor.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: October 22, 2019
    Assignee: DENSO CORPORATION
    Inventors: Hiroaki Kawano, Takuya Tanihata
  • Publication number: 20190233832
    Abstract: It was found that bringing a substance into contact with a plant cell after the plant cell is treated with plasma makes it possible to easily and highly efficiently introduce the substance into the cell without causing a damae regardless of the types of the plant and tissue from which the plant cell is derived.
    Type: Application
    Filed: June 8, 2017
    Publication date: August 1, 2019
    Applicants: NATIONAL AGRICULTURE AND FOOD RESEARCH ORGANIZATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Ichiro MITSUHARA, Yuki YANAGAWA, Akitoshi OKINO, Hidekazu MIYAHARA, Hiroaki KAWANO, Tomohiro KOBAYASHI, Yosuke WATANABE
  • Publication number: 20180201094
    Abstract: A heat pump cycle includes a first usage side heat exchanger that heats a target fluid via heat exchange with refrigerant discharged from a compressor. The refrigerant flowing out of the first usage side heat exchanger is reduced in pressure by a first pressure reducing unit, and then separated into gas and liquid by a gas-liquid separation unit. The separated gas-phase refrigerant flows toward an intermediate-pressure port of the compressor. The separated liquid-phase refrigerant is reduced in pressure by a second pressure reducing unit. An additional heat exchanger performs heat exchange between the refrigerant flowing from the second pressure reducing unit and a heat medium, and allows the refrigerant to flow toward an intake port of the compressor. A second usage side heat exchanger performs heat exchange between the separated liquid-phase refrigerant and a counterpart fluid, and allows the refrigerant to flow toward the second pressure reducing unit.
    Type: Application
    Filed: June 29, 2016
    Publication date: July 19, 2018
    Inventors: Hiroaki KAWANO, Satoshi ITOH
  • Publication number: 20180149396
    Abstract: A refrigeration cycle device includes a charged-amount determination unit that executes a charged-amount determination to determine whether the refrigeration cycle device is in a refrigerant shortage state or not, a compressor control unit that controls a compressor, and a decompression control unit that controls a throttle opening degree of a decompression device. The charged-amount determination unit determines that the refrigeration cycle device is in the refrigerant shortage state when a heat dissipation capacity of a radiator shows a tendency to decrease in a case where the decompression control unit decreases a throttle opening degree of the decompression device while the compressor control unit operates the compressor.
    Type: Application
    Filed: April 26, 2016
    Publication date: May 31, 2018
    Inventors: Hiroaki KAWANO, Takuya TANIHATA
  • Publication number: 20180022185
    Abstract: A heat pump cycle includes a compressor, a first interior heat exchanger, a separator that separates a refrigerant discharged from the compressor into a gas-phase refrigerant which does not include a lubricant and a remaining refrigerant, an exterior heat exchanger that performs heat exchange between the remaining refrigerant flowing out of the separator and an outside air, a second interior heat exchanger, a control valve, an accumulator, and a first bypass passage that bypasses the second interior heat exchanger and connects to an inlet side of the accumulator. The heat pump cycle heats an air flow in the first interior heat exchanger and controls the control valve to reduce the pressure of the refrigerant, in a state where the refrigerant circulates in a refrigerant circuit including the first bypass passage while accumulating the gas-phase refrigerant flowing out of the separator in the second interior heat exchanger.
    Type: Application
    Filed: February 4, 2016
    Publication date: January 25, 2018
    Applicant: DENSO CORPORATION
    Inventor: Hiroaki KAWANO
  • Patent number: 9601993
    Abstract: A boosting circuit of charge pump type includes: charging portion for applying an input voltage to a first capacitor; double boosting portion for applying the input voltage to a second capacitor and applying a sum of the input voltage and a voltage across the first capacitor to an output capacitor in a first predetermined period after start of a boosting operation; and triple boosting portion for repeating in order, after end of the first predetermined period, a step of applying the sum of the input voltage and the voltage across the first capacitor to the second capacitor and a step of applying a sum of the voltage across the first capacitor and a voltage across the second capacitor to the output capacitor.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: March 21, 2017
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventor: Hiroaki Kawano
  • Publication number: 20170050493
    Abstract: A heater core for performing heat exchange between a coolant and ventilation air to be blown to the interior of a vehicle so as to heat the ventilation air is disposed in a water circulation circuit for circulating a coolant in an engine EG for outputting driving force necessary to move the vehicle. When the temperature of the coolant discharged from the engine EG is low, a heat transport refrigeration cycle device, serving as a heat transport unit for absorbing heat from a downstream coolant at a position downstream more than the heater core and dissipating the heat absorbed from the downstream coolant to an upstream coolant at a position upstream more than the heater core, is operated to increase the temperature of the coolant introduced into the heater core until the temperature of the coolant reaches the temperature necessary to heat the interior of the vehicle, without operation of the engine EG.
    Type: Application
    Filed: April 27, 2015
    Publication date: February 23, 2017
    Inventors: Michio Nishikawa, Atsushi Inaba, Hiroaki Kawano, Naoya Makimoto