Patents by Inventor Hajime Uto

Hajime Uto 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: 20230311099
    Abstract: A carbon dioxide reduction catalyst for hydrogenating carbon dioxide to reduce carbon dioxide to produce a hydrocarbon, containing Fe and Zr as catalytic metals. It is preferable that Ga and Na are further contained as the catalytic metals, and the content of Zr in the catalytic metals is more than 0% by mass and 15% by mass or less.
    Type: Application
    Filed: March 24, 2023
    Publication date: October 5, 2023
    Inventors: Osami YAMAMOTO, Chiharu KAIDA, Hajime UTO, Noritatsu TSUBAKI
  • Publication number: 20230258112
    Abstract: Included are: a CO2 adsorber 7 including a plurality of adsorption passages 71 allowing exhaust gas to flow through and an adsorbent, on its wall surface, capable of adsorbing and desorbing CO2 depending on a temperature, and a heat exchanger 6 including a plurality of heat exchange passages 61 allowing the exhaust gas to flow through, being disposed in contact with the CO2 adsorber 7, and, when the exhaust gas flows through the heat exchange passages 61, transferring the heat to the CO2 adsorber 7 for heating it while removing the heat of the exhaust gas. The numbers of adsorption cells 72 and heat exchange cells 62 per unit area in a transverse section C are each set to a predetermined number and/or the sizes of the adsorption cell 72 and the heat exchange cell 62 in the transverse section C are each set to a predetermined size.
    Type: Application
    Filed: January 18, 2023
    Publication date: August 17, 2023
    Inventors: Hajime UTO, Takuya MITO, Shumon HOSHINO, Osami YAMAMOTO
  • Patent number: 11721859
    Abstract: The disclosure provides a vehicle battery cooling device including, in a vehicle equipped with a battery for driving, a battery accommodation part, an outside air introduction passage introducing air outside the vehicle, a heat exchanger cooling air introduced into the outside air introduction passage, a first air conditioning passage, a second air conditioning passage, a first discharge passage, and a second discharge passage. The first air conditioning passage is communicated to the heat exchanger and the vehicle room to supply air cooled by the heat exchanger to the vehicle room. The second air conditioning passage is communicated to the heat exchanger and the battery accommodation part to supply air cooled by the heat exchanger to the battery accommodation part. The first discharge passage discharges air in the vehicle room to outside the vehicle. The second discharge passage discharges air in the battery accommodation part to outside the vehicle.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: August 8, 2023
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hajime Uto, Masanobu Takazawa, Masaki Nagakura
  • Patent number: 11420535
    Abstract: The disclosure is a battery temperature raising device for hybrid vehicle that raises the temperature of a battery. In an engine travelling mode, when an engine water temperature is higher than a specified cooling water temperature, a first battery circuit is connected to a main circuit and the temperature of the battery is raised by cooling water in the main circuit (first temperature raising control). In a motor travelling mode, when a motor generator temperature is higher than a battery temperature, the first battery circuit and a heat exchanger flow path are connected to the main circuit, and thereby a closed circuit through which cooling water circulates without passing through an engine is formed, and the temperature of the battery is raised by the cooling water that is raised in temperature by heat exchange with a refrigerant in a heat exchanger (second temperature raising control).
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: August 23, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masanobu Takazawa, Naoaki Takeda, Masayuki Toyokawa, Hajime Uto
  • Patent number: 11371417
    Abstract: Provided is an installation structure of a heat accumulator for a vehicle, provided on a back surface side of a bumper beam of the vehicle in the front portion of the vehicle and accumulates heat by storing a refrigerant. The bumper beam extends in the left-right direction of the vehicle and has a height dimension A in the vertical direction orthogonal to the length direction. The heat accumulator extends along the length direction of the bumper beam in a state of being close to a back surface of the bumper beam, and has a height dimension B in the vertical direction orthogonal to the length direction. The bumper beam and the heat accumulator are arranged with centers in the vertical direction coinciding with each other in the front-rear direction, and the height dimension B is set to A?B?1.6A with respect to the height dimension A.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: June 28, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaki Nagakura, Hajime Uto, Masanobu Takazawa
  • Patent number: 11319855
    Abstract: A heat accumulation and dissipation device (1) for an internal combustion engine (2) includes, in a cooling circuit (3) for circulating cooling water used to cool the internal combustion engine (2), a heat accumulator (7) for accumulating the cooling water, and an exhaust heat recovery device (9) for recovering the heat of exhaust gas through the cooling water, wherein when the internal combustion engine (2) is started, heat is dissipated by sending the cooling water of the heat accumulator (7) to the internal combustion engine (2). The cooling circuit (3) includes a heat accumulation and dissipation circuit (8) configured to perform heat accumulation and dissipation while circulating the cooling water between the internal combustion engine (2) and the heat accumulator (7), and the heat accumulator (9) is arranged upstream of the heat accumulator (7) of the heat accumulation and dissipation circuit (8).
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: May 3, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masayuki Toyokawa, Hajime Uto, Masanobu Takazawa, Naoaki Takeda, Takahiro Okada
  • Publication number: 20220063394
    Abstract: Provided is a cooling apparatus for a hybrid vehicle, the cooling apparatus enabling effective heat exchange between coolant of an engine cooling circuit and refrigerant of an electric-system cooling circuit, and enabling an internal combustion engine and an electric-system device to be cooled and raised in temperature appropriately and speedily.
    Type: Application
    Filed: January 21, 2019
    Publication date: March 3, 2022
    Inventors: Hajime UTO, Masanobu TAKAZAWA, Masayuki TOYOKAWA, Naoaki TAKEDA
  • Publication number: 20220041047
    Abstract: A heat distribution device for hybrid vehicle is provided, including: an engine cooling circuit through which cooling water for cooling an internal combustion engine circulates; a MG cooling circuit through which a refrigerant for cooling a motor generator circulates; and a heat exchanger which performs heat exchange between the cooling water and the refrigerant. When it is determined based on a charging rate SOC of a battery that the battery can be charged, charging control is performed to charge the battery with electric power generated in a regenerative operation; when it is determined that the battery cannot be charged, heat dissipation control is performed to dissipate the heat generated by the regenerative operation to the engine cooling circuit side by the heat exchange between the refrigerant and the cooling water in the heat exchanger.
    Type: Application
    Filed: October 20, 2021
    Publication date: February 10, 2022
    Applicant: Honda Motor Co., Ltd.
    Inventors: Masanobu TAKAZAWA, Hajime UTO, Masayuki TOYOKAWA, Naoaki TAKEDA
  • Patent number: 11241933
    Abstract: Provided is a layout structure of refrigerant piping near a heat accumulator in a vehicle, which is connected to the heat accumulator and can reduce cooling of the refrigerant piping near the heat accumulator due to blowing of wind that comes with running of the vehicle, thereby suppressing heat dissipation of the refrigerant flowing into and out of the heat accumulator. The heat accumulator mounted in a front portion of the vehicle is arranged to extend in a direction substantially orthogonal to a front-rear direction of the vehicle, and has refrigerant inflow part and outflow part at an end. The refrigerant piping includes inflow piping connected to the inflow part and outflow piping connected to the outflow part. The inflow piping and outflow piping are arranged to extend along a length direction of the heat accumulator in a state of being close to a back surface of the heat accumulator.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: February 8, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaki Nagakura, Hajime Uto, Masanobu Takazawa
  • Patent number: 11186165
    Abstract: A heat distribution device for hybrid vehicle is provided, including: an engine cooling circuit through which cooling water for cooling an internal combustion engine circulates; a MG cooling circuit through which a refrigerant for cooling a motor generator circulates; and a heat exchanger which performs heat exchange between the cooling water and the refrigerant. When it is determined based on a charging rate SOC of a battery that the battery can be charged, charging control is performed to charge the battery with electric power generated in a regenerative operation; when it is determined that the battery cannot be charged, heat dissipation control is performed to dissipate the heat generated by the regenerative operation to the engine cooling circuit side by the heat exchange between the refrigerant and the cooling water in the heat exchanger.
    Type: Grant
    Filed: January 19, 2020
    Date of Patent: November 30, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masanobu Takazawa, Hajime Uto, Masayuki Toyokawa, Naoaki Takeda
  • Patent number: 11181036
    Abstract: The cooling water control apparatus of the disclosure includes: a cooling water circuit; a heat accumulator which is arranged in the cooling water circuit and stores high-temperature cooling water flowing out from an internal combustion engine; an on-off valve for opening/closing the cooling water circuit; a heater passage which is connected in parallel to the cooling water circuit; and a flow rate control valve which controls a flow rate of the cooling water inside the heater passage. The cooling water inside the heat accumulator is supplied to the internal combustion engine by closing the flow rate control valve and opening the on-off valve in order to promote warm-up at the start of the internal combustion engine, and thereafter, the on-off valve is closed, and an opening degree of the flow rate control valve is controlled to make the temperature of the internal combustion engine reach a specified target temperature.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: November 23, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masanobu Takazawa, Hajime Uto, Masayuki Toyokawa, Naoaki Takeda
  • Patent number: 11088408
    Abstract: A battery temperature raising device is provided which raises, in a vehicle having an internal combustion engine and a motor using a chargeable battery as a power source, the temperature of the battery during charging in a state that the internal combustion engine is stopped. The battery temperature raising device includes a main circuit where cooling water circulates through the internal combustion engine; a first battery circuit connected in parallel to the main circuit; and a second flow rate control valve arranged in the first battery circuit. A first temperature raising control for raising the temperature of the battery is executed, when a battery temperature is equal to or below a predetermined temperature and an engine water temperature is higher than the battery temperature during charging the battery, by opening the second flow rate control valve and introducing the cooling water inside the main circuit into the first battery circuit.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: August 10, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masanobu Takazawa, Hajime Uto, Naoaki Takeda, Masayuki Toyokawa
  • Publication number: 20210207521
    Abstract: Provided is an installation structure of a heat accumulator for a vehicle, provided on a back surface side of a bumper beam of the vehicle in the front portion of the vehicle and accumulates heat by storing a refrigerant. The bumper beam extends in the left-right direction of the vehicle and has a height dimension A in the vertical direction orthogonal to the length direction. The heat accumulator extends along the length direction of the bumper beam in a state of being close to a back surface of the bumper beam, and has a height dimension B in the vertical direction orthogonal to the length direction. The bumper beam and the heat accumulator are arranged with centers in the vertical direction coinciding with each other in the front-rear direction, and the height dimension B is set to A?B?1.6A with respect to the height dimension A.
    Type: Application
    Filed: January 7, 2021
    Publication date: July 8, 2021
    Applicant: Honda Motor Co., Ltd.
    Inventors: Masaki NAGAKURA, Hajime UTO, Masanobu TAKAZAWA
  • Publication number: 20210210811
    Abstract: The disclosure provides a vehicle battery cooling device including, in a vehicle equipped with a battery for driving, a battery accommodation part, an outside air introduction passage introducing air outside the vehicle, a heat exchanger cooling air introduced into the outside air introduction passage, a first air conditioning passage, a second air conditioning passage, a first discharge passage, and a second discharge passage. The first air conditioning passage is communicated to the heat exchanger and the vehicle room to supply air cooled by the heat exchanger to the vehicle room. The second air conditioning passage is communicated to the heat exchanger and the battery accommodation part to supply air cooled by the heat exchanger to the battery accommodation part. The first discharge passage discharges air in the vehicle room to outside the vehicle. The second discharge passage discharges air in the battery accommodation part to outside the vehicle.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 8, 2021
    Applicant: Honda Motor Co., Ltd.
    Inventors: Hajime UTO, Masanobu TAKAZAWA, Masaki NAGAKURA
  • Publication number: 20210206228
    Abstract: Provided is a layout structure of refrigerant piping near a heat accumulator in a vehicle, which is connected to the heat accumulator and can reduce cooling of the refrigerant piping near the heat accumulator due to blowing of wind that comes with running of the vehicle, thereby suppressing heat dissipation of the refrigerant flowing into and out of the heat accumulator. The heat accumulator mounted in a front portion of the vehicle is arranged to extend in a direction substantially orthogonal to a front-rear direction of the vehicle, and has refrigerant inflow part and outflow part at an end. The refrigerant piping includes inflow piping connected to the inflow part and outflow piping connected to the outflow part. The inflow piping and outflow piping are arranged to extend along a length direction of the heat accumulator in a state of being close to a back surface of the heat accumulator.
    Type: Application
    Filed: January 7, 2021
    Publication date: July 8, 2021
    Applicant: Honda Motor Co., Ltd.
    Inventors: Masaki NAGAKURA, Hajime UTO, Masanobu TAKAZAWA
  • Patent number: 10995875
    Abstract: The thermal management system includes a cooling circuit in which cooling water circulates, a heat exchange circuit in which cooling water performing heat exchange with a battery flows, a flow rate control valve which adjusts a flow rate of cooling water flowing from the cooling circuit to the heat exchange circuit, a shutter which adjusts an introduction amount of outside air into an engine room, and an ECU which controls an opening degree of the flow rate control valve and an opening degree of the shutter. The ECU controls the shutter and the flow rate control valve to be in a fully closed state when a cooling water temperature is less than a valve opening temperature of a thermostat valve and controls the shutter and the flow rate control valve to be in an open state when the cooling water temperature is greater than the valve opening temperature.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: May 4, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hajime Uto, Masanobu Takazawa, Masayuki Toyokawa, Naoaki Takeda
  • Publication number: 20200274209
    Abstract: A battery temperature raising device is provided which raises, in a vehicle having an internal combustion engine and a motor using a chargeable battery as a power source, the temperature of the battery during charging in a state that the internal combustion engine is stopped. The battery temperature raising device includes a main circuit where cooling water circulates through the internal combustion engine; a first battery circuit connected in parallel to the main circuit; and a second flow rate control valve arranged in the first battery circuit. A first temperature raising control for raising the temperature of the battery is executed, when a battery temperature is equal to or below a predetermined temperature and an engine water temperature is higher than the battery temperature during charging the battery, by opening the second flow rate control valve and introducing the cooling water inside the main circuit into the first battery circuit.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 27, 2020
    Applicant: Honda Motor Co.,Ltd.
    Inventors: Masanobu TAKAZAWA, Hajime UTO, Naoaki TAKEDA, Masayuki TOYOKAWA
  • Publication number: 20200269724
    Abstract: The disclosure is a battery temperature raising device for hybrid vehicle that raises the temperature of a battery. In an engine travelling mode, when an engine water temperature is higher than a specified cooling water temperature, a first battery circuit is connected to a main circuit and the temperature of the battery is raised by cooling water in the main circuit (first temperature raising control). In a motor travelling mode, when a motor generator temperature is higher than a battery temperature, the first battery circuit and a heat exchanger flow path are connected to the main circuit, and thereby a closed circuit through which cooling water circulates without passing through an engine is formed, and the temperature of the battery is raised by the cooling water that is raised in temperature by heat exchange with a refrigerant in a heat exchanger (second temperature raising control).
    Type: Application
    Filed: February 7, 2020
    Publication date: August 27, 2020
    Applicant: Honda Motor Co.,Ltd.
    Inventors: Masanobu TAKAZAWA, Naoaki TAKEDA, Masayuki TOYOKAWA, Hajime UTO
  • Publication number: 20200240318
    Abstract: The cooling water control apparatus of the disclosure includes: a cooling water circuit; a heat accumulator which is arranged in the cooling water circuit and stores high-temperature cooling water flowing out from an internal combustion engine; an on-off valve for opening/closing the cooling water circuit; a heater passage which is connected in parallel to the cooling water circuit; and a flow rate control valve which controls a flow rate of the cooling water inside the heater passage. The cooling water inside the heat accumulator is supplied to the internal combustion engine by closing the flow rate control valve and opening the on-off valve in order to promote warm-up at the start of the internal combustion engine, and thereafter, the on-off valve is closed, and an opening degree of the flow rate control valve is controlled to make the temperature of the internal combustion engine reach a specified target temperature.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 30, 2020
    Applicant: Honda Motor Co.,Ltd.
    Inventors: Masanobu TAKAZAWA, Hajime UTO, Masayuki TOYOKAWA, Naoaki TAKEDA
  • Publication number: 20200238818
    Abstract: A heat distribution device for hybrid vehicle is provided, including: an engine cooling circuit through which cooling water for cooling an internal combustion engine circulates; a MG cooling circuit through which a refrigerant for cooling a motor generator circulates; and a heat exchanger which performs heat exchange between the cooling water and the refrigerant. When it is determined based on a charging rate SOC of a battery that the battery can be charged, charging control is performed to charge the battery with electric power generated in a regenerative operation; when it is determined that the battery cannot be charged, heat dissipation control is performed to dissipate the heat generated by the regenerative operation to the engine cooling circuit side by the heat exchange between the refrigerant and the cooling water in the heat exchanger.
    Type: Application
    Filed: January 19, 2020
    Publication date: July 30, 2020
    Applicant: Honda Motor Co.,Ltd.
    Inventors: Masanobu TAKAZAWA, Hajime UTO, Masayuki TOYOKAWA, Naoaki TAKEDA