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).
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Publication number: 20230311099Abstract: 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: ApplicationFiled: March 24, 2023Publication date: October 5, 2023Inventors: Osami YAMAMOTO, Chiharu KAIDA, Hajime UTO, Noritatsu TSUBAKI
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Publication number: 20230258112Abstract: 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: ApplicationFiled: January 18, 2023Publication date: August 17, 2023Inventors: Hajime UTO, Takuya MITO, Shumon HOSHINO, Osami YAMAMOTO
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Patent number: 11721859Abstract: 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: GrantFiled: January 6, 2021Date of Patent: August 8, 2023Assignee: Honda Motor Co., Ltd.Inventors: Hajime Uto, Masanobu Takazawa, Masaki Nagakura
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Patent number: 11420535Abstract: 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: GrantFiled: February 7, 2020Date of Patent: August 23, 2022Assignee: Honda Motor Co., Ltd.Inventors: Masanobu Takazawa, Naoaki Takeda, Masayuki Toyokawa, Hajime Uto
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Patent number: 11371417Abstract: 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: GrantFiled: January 7, 2021Date of Patent: June 28, 2022Assignee: Honda Motor Co., Ltd.Inventors: Masaki Nagakura, Hajime Uto, Masanobu Takazawa
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Patent number: 11319855Abstract: 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: GrantFiled: January 10, 2020Date of Patent: May 3, 2022Assignee: Honda Motor Co., Ltd.Inventors: Masayuki Toyokawa, Hajime Uto, Masanobu Takazawa, Naoaki Takeda, Takahiro Okada
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Publication number: 20220063394Abstract: 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: ApplicationFiled: January 21, 2019Publication date: March 3, 2022Inventors: Hajime UTO, Masanobu TAKAZAWA, Masayuki TOYOKAWA, Naoaki TAKEDA
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Publication number: 20220041047Abstract: 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: ApplicationFiled: October 20, 2021Publication date: February 10, 2022Applicant: Honda Motor Co., Ltd.Inventors: Masanobu TAKAZAWA, Hajime UTO, Masayuki TOYOKAWA, Naoaki TAKEDA
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Patent number: 11241933Abstract: 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: GrantFiled: January 7, 2021Date of Patent: February 8, 2022Assignee: Honda Motor Co., Ltd.Inventors: Masaki Nagakura, Hajime Uto, Masanobu Takazawa
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Patent number: 11186165Abstract: 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: GrantFiled: January 19, 2020Date of Patent: November 30, 2021Assignee: Honda Motor Co., Ltd.Inventors: Masanobu Takazawa, Hajime Uto, Masayuki Toyokawa, Naoaki Takeda
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Patent number: 11181036Abstract: 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: GrantFiled: January 17, 2020Date of Patent: November 23, 2021Assignee: Honda Motor Co., Ltd.Inventors: Masanobu Takazawa, Hajime Uto, Masayuki Toyokawa, Naoaki Takeda
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Patent number: 11088408Abstract: 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: GrantFiled: February 10, 2020Date of Patent: August 10, 2021Assignee: Honda Motor Co., Ltd.Inventors: Masanobu Takazawa, Hajime Uto, Naoaki Takeda, Masayuki Toyokawa
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Publication number: 20210207521Abstract: 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: ApplicationFiled: January 7, 2021Publication date: July 8, 2021Applicant: Honda Motor Co., Ltd.Inventors: Masaki NAGAKURA, Hajime UTO, Masanobu TAKAZAWA
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Publication number: 20210210811Abstract: 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: ApplicationFiled: January 6, 2021Publication date: July 8, 2021Applicant: Honda Motor Co., Ltd.Inventors: Hajime UTO, Masanobu TAKAZAWA, Masaki NAGAKURA
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Publication number: 20210206228Abstract: 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: ApplicationFiled: January 7, 2021Publication date: July 8, 2021Applicant: Honda Motor Co., Ltd.Inventors: Masaki NAGAKURA, Hajime UTO, Masanobu TAKAZAWA
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Patent number: 10995875Abstract: 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: GrantFiled: July 1, 2019Date of Patent: May 4, 2021Assignee: Honda Motor Co., Ltd.Inventors: Hajime Uto, Masanobu Takazawa, Masayuki Toyokawa, Naoaki Takeda
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Publication number: 20200274209Abstract: 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: ApplicationFiled: February 10, 2020Publication date: August 27, 2020Applicant: Honda Motor Co.,Ltd.Inventors: Masanobu TAKAZAWA, Hajime UTO, Naoaki TAKEDA, Masayuki TOYOKAWA
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Publication number: 20200269724Abstract: 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: ApplicationFiled: February 7, 2020Publication date: August 27, 2020Applicant: Honda Motor Co.,Ltd.Inventors: Masanobu TAKAZAWA, Naoaki TAKEDA, Masayuki TOYOKAWA, Hajime UTO
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Publication number: 20200240318Abstract: 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: ApplicationFiled: January 17, 2020Publication date: July 30, 2020Applicant: Honda Motor Co.,Ltd.Inventors: Masanobu TAKAZAWA, Hajime UTO, Masayuki TOYOKAWA, Naoaki TAKEDA
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Publication number: 20200238818Abstract: 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: ApplicationFiled: January 19, 2020Publication date: July 30, 2020Applicant: Honda Motor Co.,Ltd.Inventors: Masanobu TAKAZAWA, Hajime UTO, Masayuki TOYOKAWA, Naoaki TAKEDA