Patents by Inventor Isao Tsunoda
Isao Tsunoda 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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Patent number: 10913331Abstract: A motor-driven vehicle includes an electric motor, a power storage device, a control device, and a refrigerant circuit. The refrigerant circuit has a compressor, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger. The indoor heat exchanger exchanges heat with the refrigerant compressed by the compressor. The refrigerant which passes through the indoor heat exchanger is decompressed by the expansion valve, and the outdoor heat exchanger exchanges heat with the decompressed refrigerant and allows the refrigerant to return to the compressor. When the remaining capacity of the power storage device is equal to or more than a predetermined value, the control device operates the compressor and decreases a passing-through air volume of a first air guide device that controls a passing-through air volume of the outdoor heat exchanger.Type: GrantFiled: December 6, 2018Date of Patent: February 9, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Osamu Ishida, Isao Tsunoda, Yoshiyuki Takeuchi
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Patent number: 10589599Abstract: To provide an air conditioner for a vehicle having a simple configuration and capable of controlling temperature in a wide range. In a dehumidification heating operation in which a refrigerant is circulated through a first heat exchanger, a second heat exchanger, an evaporator and a compressor in the order named so as to radiate the heat of the refrigerant into the first heat exchanger, there is provided a refrigerant heating means which heats the refrigerant when an outside air temperature is not higher than a predetermined temperature and when an opening degree of the second expansion valve which expands the refrigerant flowing out from the second heat exchanger is larger than an opening degree of the first expansion valve which expands the refrigerant flowing out from the first heat exchanger.Type: GrantFiled: October 13, 2017Date of Patent: March 17, 2020Assignee: HONDA MOTOR CO., LTD.Inventor: Isao Tsunoda
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Publication number: 20190193523Abstract: An electric vehicle includes an electric motor, a power storage device, a control device, and a refrigerant circuit. The refrigerant circuit includes a compressor, an outdoor heat exchanger, an expansion valve, a first indoor heat exchanger, and a heating decompression valve. The heating decompression valve changes a passage resistance between the compressor and the outdoor heat exchanger. The control device increases the passage resistance by the heating decompression valve when the remaining capacity of the power storage device is equal to or larger than a predetermined value.Type: ApplicationFiled: December 13, 2018Publication date: June 27, 2019Inventors: Yoshiyuki Takeuchi, Isao Tsunoda, Osamu Ishida, Nobumasa Toyoshima, Ryoma Taguchi, Takahiro Ohmi
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Publication number: 20190193520Abstract: A motor-driven vehicle includes an electric motor, a power storage device, a controller, and a refrigerant circuit. The refrigerant circuit includes a compressor, an outdoor heat exchanger, a first indoor heat exchanger, a first expansion valve, a second expansion valve, and a second indoor heat exchanger. The controller switches a ratio of an amount of pressure reduction of the second expansion valve to an amount of pressure reduction of the first expansion valve with a predetermined temperature as a boundary when a remaining capacity of the power storage device is equal to or greater than a predetermined value.Type: ApplicationFiled: December 6, 2018Publication date: June 27, 2019Inventors: Isao Tsunoda, Osamu Ishida, Yoshiyuki Takeuchi, Ryoma Taguchi, Takahiro Ohmi
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Publication number: 20190193521Abstract: A motor-driven vehicle includes an electric motor, a power storage device, a control device, and a refrigerant circuit. The refrigerant circuit has a compressor, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger. The indoor heat exchanger exchanges heat with the refrigerant compressed by the compressor. The refrigerant which passes through the indoor heat exchanger is decompressed by the expansion valve, and the outdoor heat exchanger exchanges heat with the decompressed refrigerant and allows the refrigerant to return to the compressor. When the remaining capacity of the power storage device is equal to or more than a predetermined value, the control device operates the compressor and decreases a passing-through air volume of a first air guide device that controls a passing-through air volume of the outdoor heat exchanger.Type: ApplicationFiled: December 6, 2018Publication date: June 27, 2019Inventors: Osamu Ishida, Isao Tsunoda, Yoshiyuki Takeuchi
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Publication number: 20180105021Abstract: To provide an air conditioner for a vehicle having a simple configuration and capable of controlling temperature in a wide range. In a dehumidification heating operation in which a refrigerant is circulated through a first heat exchanger, a second heat exchanger, an evaporator and a compressor in the order named so as to radiate the heat of the refrigerant into the first heat exchanger, there is provided a refrigerant heating means which heats the refrigerant when an outside air temperature is not higher than a predetermined temperature and when an opening degree of the second expansion valve which expands the refrigerant flowing out from the second heat exchanger is larger than an opening degree of the first expansion valve which expands the refrigerant flowing out from the first heat exchanger.Type: ApplicationFiled: October 13, 2017Publication date: April 19, 2018Applicant: HONDA MOTOR CO., LTD.Inventor: Isao Tsunoda
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Patent number: 9879890Abstract: When a dehumidifying heating operation is performed by a heat-radiating operation of the interior condenser and a heat-absorbing operation of the exterior heat-exchanger and the evaporator, a control device of an air conditioner for vehicle decreases the valve opening degree of the electronic expansion valve to be equal to or less than a predetermined opening degree before opening the solenoid valve for dehumidification in a closed state, opens the solenoid valve for dehumidification after decreasing the valve opening degree of the electronic expansion valve to be equal to or less than the predetermined opening degree, and then increasing the valve opening degree of the electronic expansion valve to be greater than the predetermined opening degree after opening the solenoid valve for dehumidification.Type: GrantFiled: March 1, 2013Date of Patent: January 30, 2018Assignee: Honda Motor Co., Ltd.Inventors: Isao Tsunoda, Kazuma Ichikawa
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Patent number: 9707930Abstract: An air conditioner for a vehicle includes: a compressor that compresses a heat exchange medium; an internal heat exchanger that performs heat exchange between the heat exchange medium expelled from the compressor and air for air conditioning introduced inside a vehicle compartment; and an external heat exchanger that performs heat exchange between the heat exchange medium expelled from the internal heat exchanger and external air, wherein the air conditioner for a vehicle calculates a temperature difference between an external air temperature and a discharge port temperature of the external heat exchanger, calculates an average value of the temperature difference, and performs a defrosting operation which melts frost adhered to the external heat exchanger when an amount of change of the average value is equal to or greater than a first predetermined value.Type: GrantFiled: July 25, 2013Date of Patent: July 18, 2017Assignee: Honda Motor Co., Ltd.Inventors: Isao Tsunoda, Kazuma Ichikawa
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Patent number: 9494360Abstract: An air conditioner for a vehicle is provided with: a compressor that compresses a heat exchange medium; an external heat exchanger that receives the heat exchange medium and that exchanges heat with the outside of a vehicle compartment; and an evaporator that receives the heat exchange medium and exchanges heat with the inside of a vehicle compartment, and the air conditioner for a vehicle is able to perform: a defrosting cooling operation in which the heat exchange medium that has been compressed by the compressor is made to flow into the evaporator and absorb heat, and to then flow into the external heat exchanger and release heat; and a hot gas operation in which the heat exchange medium that has been compressed by the compressor is made to flow into the external heat exchanger and release heat without being made to absorb heat in the evaporator, and, by switching between performing the defrosting cooling operation and performing the hot gas operation, the air conditioner for a vehicle performs a defrostinType: GrantFiled: May 14, 2013Date of Patent: November 15, 2016Assignee: Honda Motor Co., Ltd.Inventors: Isao Tsunoda, Kazuma Ichikawa
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Publication number: 20140041404Abstract: An air conditioner for a vehicle includes: a compressor that compresses a heat exchange medium; an internal heat exchanger that performs heat exchange between the heat exchange medium expelled from the compressor and air for air conditioning introduced inside a vehicle compartment; and an external heat exchanger that performs heat exchange between the heat exchange medium expelled from the internal heat exchanger and external air, wherein the air conditioner for a vehicle calculates a temperature difference between an external air temperature and a discharge port temperature of the external heat exchanger, calculates an average value of the temperature difference, and performs a defrosting operation which melts frost adhered to the external heat exchanger when an amount of change of the average value is equal to or greater than a first predetermined value.Type: ApplicationFiled: July 25, 2013Publication date: February 13, 2014Applicant: HONDA MOTOR CO., LTD.Inventors: Isao TSUNODA, Kazuma ICHIKAWA
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Publication number: 20130305759Abstract: An air conditioner for a vehicle is provided with: a compressor that compresses a heat exchange medium; an external heat exchanger that receives the heat exchange medium and that exchanges heat with the outside of a vehicle compartment; and an evaporator that receives the heat exchange medium and exchanges heat with the inside of a vehicle compartment, and the air conditioner for a vehicle is able to perform: a defrosting cooling operation in which the heat exchange medium that has been compressed by the compressor is made to flow into the evaporator and absorb heat, and to then flow into the external heat exchanger and release heat; and a hot gas operation in which the heat exchange medium that has been compressed by the compressor is made to flow into the external heat exchanger and release heat without being made to absorb heat in the evaporator, and, by switching between performing the defrosting cooling operation and performing the hot gas operation, the air conditioner for a vehicle performs a defrostinType: ApplicationFiled: May 14, 2013Publication date: November 21, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Isao TSUNODA, Kazuma ICHIKAWA
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Publication number: 20130227984Abstract: When a dehumidifying heating operation is performed by a heat-radiating operation of the interior condenser and a heat-absorbing operation of the exterior heat-exchanger and the evaporator, a control device of an air conditioner for vehicle decreases the valve opening degree of the electronic expansion valve to be equal to or less than a predetermined opening degree before opening the solenoid valve for dehumidification in a closed state, opens the solenoid valve for dehumidification after decreasing the valve opening degree of the electronic expansion valve to be equal to or less than the predetermined opening degree, and then increasing the valve opening degree of the electronic expansion valve to be greater than the predetermined opening degree after opening the solenoid valve for dehumidification.Type: ApplicationFiled: March 1, 2013Publication date: September 5, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Isao TSUNODA, Kazuma ICHIKAWA
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Patent number: 8281754Abstract: A radiator is provided within an engine room and in front of an engine for cooling engine cooling water. A shutter is provided in front of the radiator and covers a portion of a core surface of the radiator for adjusting an amount of cooling air to be directed toward the radiator. A baffle plate is provided behind a remaining portion of the core surface, which is not covered with the shutter, for directing the air, having passed through the remaining portion, to outside the engine room.Type: GrantFiled: September 30, 2009Date of Patent: October 9, 2012Assignee: Honda Motor Co., Ltd.Inventors: Yoshitaka Saida, Choji Sakuma, Hironori Shuto, Isao Tsunoda, Yasuo Minagawa
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Publication number: 20110061405Abstract: A vehicular air conditioner includes cabin-exterior fans that blow air with respect to a cabin-exterior heat exchanger in which a coolant is vaporized, and a plurality of openable/closable shutters disposed in a duct that communicates between the cabin-exterior heat exchanger and the exterior of the vehicle. On an upper portion of the duct, a cover is formed that covers the cabin-exterior heat exchanger, which is disposed rearwardly of the shutters, and an upper region of the radiator. Additionally, air that is raised in temperature by heat from the engine passes between the cover and both the cabin-exterior heat exchanger and the radiator, and is guided toward a forward side of the vehicle.Type: ApplicationFiled: September 16, 2010Publication date: March 17, 2011Applicants: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.Inventors: Shogo WATANABE, Masashi OGAWA, Takumi SAITO, Choji SAKUMA, Yoshitaka SAIDA, Isao TSUNODA, Hironori SHUTO, Yasuo MINAKAWA
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Publication number: 20100083917Abstract: A radiator is provided within an engine room and in front of an engine for cooling engine cooling water. A shutter is provided in front of the radiator and covers a portion of a core surface of the radiator for adjusting an amount of cooling air to be directed toward the radiator. A baffle plate is provided behind a remaining portion of the core surface, which is not covered with the shutter, for directing the air, having passed through the remaining portion, to outside the engine room.Type: ApplicationFiled: September 30, 2009Publication date: April 8, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Yoshitaka Saida, Choji Sakuma, Hironori Shuto, Isao Tsunoda, Yasuo Minagawa
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Patent number: 7462844Abstract: The invention provides a method, system, and apparatus for improving doping uniformity during ion implantation, particularly during a high-tilt ion implantation. In one embodiment, the invention provides a method for improving doping uniformity in a high-tilt ion implantation, the method comprising the steps of: positioning a wafer along an axis perpendicular to an ion beam scan plane to form an angle between a surface of the wafer and a plane perpendicular to the ion beam; measuring a current of the ion beam by moving a current detector across the ion beam in a path substantially coplanar with a surface of the wafer; and adjusting a doping uniformity of the ion beam current based on the measuring step.Type: GrantFiled: September 30, 2005Date of Patent: December 9, 2008Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Shengwu Chang, Isao Tsunoda, Nobihiro Tokoro, Dennis Rodier, Joseph C. Olson, Donna Smatlak, Damian Brennan, William Bintz
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Publication number: 20070085037Abstract: The invention provides a method, system, and apparatus for improving doping uniformity during ion implantation, particularly during a high-tilt ion implantation. In one embodiment, the invention provides a method for improving doping uniformity in a high-tilt ion implantation, the method comprising the steps of: positioning a wafer along an axis perpendicular to an ion beam scan plane to form an angle between a surface of the wafer and a plane perpendicular to the ion beam; measuring a current of the ion beam by moving a current detector across the ion beam in a path substantially coplanar with a surface of the wafer; and adjusting a doping uniformity of the ion beam current based on the measuring step.Type: ApplicationFiled: September 30, 2005Publication date: April 19, 2007Inventors: Shengwu Chang, Isao Tsunoda, Nobihiro Tokoro, Dennis Rodier, Joseph Olson, Donna Smatlak, Damian Brennan, William Bintz
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Patent number: 7017659Abstract: A vehicle air-conditioning system adjusts the temperature at an outlet by a combined amount of air flowing through a first bypass passage adjusted by an air mixing door and air flowing through a second bypass passage adjusted by a cool air adjusting door independently of the first bypass. A cool air adjusting door control unit adjusts the opening of the cool air adjusting door so that the temperature detected by a discharge temperature sensor comes closer to a target discharge temperature for precise control of discharge temperature, and also causes the cool air adjusting door to be fully open when the opening of the air mixing door determined by an air mixing door opening setting unit is equal to or smaller than a predetermined degree of opening, so as to maintain a steady amount of air discharged from the outlet.Type: GrantFiled: February 16, 2005Date of Patent: March 28, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Isao Tsunoda
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Patent number: 6962196Abstract: A mode switching control device of a vehicle air-conditioning apparatus capable of selecting vent mode delivery, whereby air is delivered to an upper part of the inside of a passenger compartment; foot mode delivery, whereby air is delivered to a lower part of the passenger compartment; and bi-level mode delivery, whereby the vent mode delivery and the foot mode delivery are implemented together. Even when on the basis of a target outlet temperature foot mode delivery has been selected, when the occupant insolation level is above a predetermined level the control device switches to the bi-level mode to provide the occupant with a comfortable air-conditioning feeling even when the vehicle is running.Type: GrantFiled: May 14, 2003Date of Patent: November 8, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Isao Tsunoda
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Publication number: 20050217291Abstract: A vehicle air-conditioning system adjusts the temperature at an outlet by a combined amount of air flowing through a first bypass passage adjusted by an air mixing door and air flowing through a second bypass passage adjusted by a cool air adjusting door independently of the first bypass. A cool air adjusting door control unit adjusts the opening of the cool air adjusting door so that the temperature detected by a discharge temperature sensor comes closer to a target discharge temperature for precise control of discharge temperature, and also causes the cool air adjusting door to be fully open when the opening of the air mixing door determined by an air mixing door opening setting unit is equal to or smaller than a predetermined degree of opening, so as to maintain a steady amount of air discharged from the outlet.Type: ApplicationFiled: February 16, 2005Publication date: October 6, 2005Applicant: HONDA MOTOR CO., LTD.Inventor: Isao Tsunoda