Patents by Inventor Hideaki Tatenoi
Hideaki Tatenoi 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: 12208661Abstract: An air conditioning device for a vehicle includes: a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a refrigerant is sequentially flowed; a high-temperature heat medium circuit through which a high-temperature heat medium has exchanged heat with the refrigerant in the condenser is circulated; a low-temperature heat medium circuit through which a low-temperature heat medium has exchanged heat with the refrigerant in the evaporator is circulated; a connection line connecting the high-temperature heat medium circuit to the low-temperature heat medium circuit; vehicle interior heat exchangers allowed to be introduced the heat medium thereinto; and a switching unit which switches an operation state of the air conditioning device to a first mode allowing to connect the vehicle interior heat exchangers to the high-temperature heat medium circuit, a second mode allowing to connect the vehicle interior heat exchangers to the low-temperature heat medium circType: GrantFiled: January 28, 2021Date of Patent: January 28, 2025Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Hirotaka Tanabe, Takayuki Kobayashi, Hideaki Tatenoi, Masahiro Ota, Tomoki Hase
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Patent number: 12187098Abstract: A vehicle air conditioner includes: a refrigeration cycle in which a refrigerant circulates; a high-temperature cycle in which a first heat medium in liquid form heated by the refrigeration cycle circulates; a low-temperature cycle in which a second heat medium in liquid form cooled by the refrigeration cycle circulates; and a seat that is provided in a vehicle interior and has a warm flow passage and a cold flow passage disposed close to each other. The warm flow passage is provided on the route of the high-temperature cycle, and the cold flow passage is provided on the route of the low-temperature cycle.Type: GrantFiled: February 22, 2021Date of Patent: January 7, 2025Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Hirotaka Tanabe, Takayuki Kobayashi, Hideaki Tatenoi, Tomoki Hase, Masahiro Ohta
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Patent number: 12160712Abstract: This air conditioning device for a vehicle comprises: a refrigeration cycle having a compressor, a condenser, an expansion valve, and an evaporator through which refrigerant sequentially flows; a high-temperature heat medium circuit in which a high-temperature heat medium that has been heat-exchanged with the refrigerant in the condenser circulates; a low-temperature heat medium circuit in which a low-temperature heat medium that has been heat-exchanged with the refrigerant in the evaporator circulates; a connection line for connecting the high-temperature heat medium circuit and the low-temperature heat medium circuit; a plurality of heat exchangers outside the vehicle that allow introduction of the heat medium; and a switching unit capable of switching modes for each of the plurality of heat exchangers outside the vehicle, among a mode for connecting to the high-temperature heat medium circuit, a mode for connecting to the low-temperature heat medium circuit, and a mode for not connecting to either of the hType: GrantFiled: February 1, 2021Date of Patent: December 3, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Takayuki Kobayashi, Hirotaka Tanabe, Tomoki Hase, Masahiro Ohta, Hideaki Tatenoi, Koji Nakado
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Patent number: 12104819Abstract: This air-conditioning unit includes a heat exchanger that exchanges heat between air and a coolant, a blower, and an air outflow part. The heat exchanger includes a plurality of tubes in which the coolant flows, an inlet header, an outlet header, and a fin. The inlet header includes: a low-temperature-side coolant inflow part into which coolant that has a relatively low temperature can flow; and a high-temperature-side coolant inflow part into which coolant that has a relatively high temperature can flow. The low-temperature-side coolant inflow part and the high-temperature-side coolant inflow part are offset from each other in the direction of the flow of air that passes through the heat exchanger and in an intersecting direction that intersects the direction of the flow of air.Type: GrantFiled: June 26, 2020Date of Patent: October 1, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Tomoki Hase, Hideaki Tatenoi, Nobuya Nakagawa, Yasuo Katayama
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Publication number: 20240294053Abstract: The present invention provides a vehicle air conditioning system and a vehicle air conditioning method that increase heating performance while recovering exhaust heat from onboard equipment. The vehicle air conditioning system comprises: a refrigerant circuit; a heat medium circuit including a high-temperature medium circuit and a low-temperature medium circuit; an interior heat exchanger that exchanges heat between a heat medium and air; an exterior heat exchanger that exchanges heat between the heat medium and outside air; an exhaust heat recovery circuit; and a switching part.Type: ApplicationFiled: August 3, 2022Publication date: September 5, 2024Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Hirotaka TANABE, Takayuki KOBAYASHI, Tomoki HASE, Yasutaka AOKI, Hideaki TATENOI
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Publication number: 20240149640Abstract: A vehicle air conditioning system includes a refrigerant circuit, a heat medium circuit, a vehicle-interior heat exchanger, a vehicle-exterior heat exchanger including a first heat exchanger and a second heat exchanger disposed in series with respect to a flow of air generated by an air blower, a switching unit, a detection unit for detecting a degree of frost formation, and a control device. The operation mode includes a defrosting mode in which the heat medium in the high-temperature medium circuit is supplied to a defrosting target to be selected as either the first or second heat exchanger by the operation of the switching unit. The control device selects, as the defrosting target, the first heat exchanger in preference to the second heat exchanger when determined that both the first and the second heat exchangers need to be defrosted.Type: ApplicationFiled: March 29, 2022Publication date: May 9, 2024Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Hirotaka TANABE, Takayuki KOBAYASHI, Yasutaka AOKI, Tomoki HASE, Hideaki TATENOI, Masayuki SAKAI, Michiaki NAKANISHI
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Publication number: 20230415547Abstract: A vehicle air conditioning system includes a refrigerant circuit that circulates a refrigerant through a compressor, a heat-absorbing heat exchanger, a decompression unit, and a heat-dissipating heat exchanger, a heat medium circuit including a high-temperature heat medium circuit that circulates a high-temperature heat medium and a low-temperature heat medium circuit that circulates a low-temperature heat medium, a vehicle interior heat exchanger that exchanges heat between air and at least one of the high-temperature heat medium and the low-temperature heat medium, a vehicle exterior heat exchanger that exchanges heat between air and at least one of the high-temperature heat medium and the low-temperature heat medium, and a switching unit that switches respective flows of the high-temperature heat medium and the low-temperature heat medium in accordance with an operation mode of the vehicle air conditioning system.Type: ApplicationFiled: November 10, 2021Publication date: December 28, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Hirotaka Tanabe, Takayuki Kobayashi, Yasutaka Aoki, Tomoki Hase, Hideaki Tatenoi
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Publication number: 20230364966Abstract: This heat exchanger is equipped with: a first heat exchange unit having a first inlet/outlet unit which has one inlet/outlet port and through which a coolant flows, and also having a plurality of first heat transfer pipes, each of which has one end thereof connected to the first inlet/outlet unit; a header pipe which is connected to the other ends of the plurality of first heat transfer pipes; and a second heat exchange unit having a second inlet/outlet unit which has two or more inlet/outlet ports and through which a coolant flows, and also having a plurality of second heat transfer pipes, each of which has one end thereof connected to the header pipe and the other end thereof connected to the second inlet/outlet unit. The coolant flows from the first heat exchange unit side toward the second heat exchange unit side during heating and flows from the second heat exchange unit side toward the first heat exchange unit side during cooling.Type: ApplicationFiled: September 29, 2021Publication date: November 16, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Koji NAKADO, Nobuya NAKAGAWA, Hideaki TATENOI
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Publication number: 20230347710Abstract: This air conditioning device for a vehicle comprises: a refrigeration cycle having a compressor, a condenser, an expansion valve, and an evaporator through which refrigerant sequentially flows; a high-temperature heat medium circuit in which a high-temperature heat medium that has been heat-exchanged with the refrigerant in the condenser circulates; a low-temperature heat medium circuit in which a low-temperature heat medium that has been heat-exchanged with the refrigerant in the evaporator circulates; a connection line for connecting the high-temperature heat medium circuit and the low-temperature heat medium circuit; a plurality of heat exchangers outside the vehicle that allow introduction of the heat medium; and a switching unit capable of switching modes for each of the plurality of heat exchangers outside the vehicle, among a mode for connecting to the high-temperature heat medium circuit, a mode for connecting to the low-temperature heat medium circuit, and a mode for not connecting to either of the hType: ApplicationFiled: February 1, 2021Publication date: November 2, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Takayuki KOBAYASHI, Hirotaka TANABE, Tomoki HASE, Masahiro OHTA, Hideaki TATENOI, Koji NAKADO
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Publication number: 20230158859Abstract: A vehicle air conditioner includes: a refrigeration cycle in which a refrigerant circulates; a high-temperature cycle in which a first heat medium in liquid form heated by the refrigeration cycle circulates; a low-temperature cycle in which a second heat medium in liquid form cooled by the refrigeration cycle circulates; and a seat that is provided in a vehicle interior and has a warm flow passage and a cold flow passage disposed close to each other. The warm flow passage is provided on the route of the high-temperature cycle, and the cold flow passage is provided on the route of the low-temperature cycle.Type: ApplicationFiled: February 22, 2021Publication date: May 25, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Hirotaka TANABE, Takayuki KOBAYASHI, Hideaki TATENOI, Tomoki HASE, Masahiro OHTA
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Publication number: 20230082212Abstract: An air conditioning device for a vehicle includes: a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a refrigerant is sequentially flowed; a high-temperature heat medium circuit through which a high-temperature heat medium has exchanged heat with the refrigerant in the condenser is circulated; a low-temperature heat medium circuit through which a low-temperature heat medium has exchanged heat with the refrigerant in the evaporator is circulated; a connection line connecting the high-temperature heat medium circuit to the low-temperature heat medium circuit; vehicle interior heat exchangers allowed to be introduced the heat medium thereinto; and a switching unit which switches an operation state of the air conditioning device to a first mode allowing to connect the vehicle interior heat exchangers to the high-temperature heat medium circuit, a second mode allowing to connect the vehicle interior heat exchangers to the low-temperature heat medium circType: ApplicationFiled: January 28, 2021Publication date: March 16, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Hirotaka TANABE, Takayuki KOBAYASHI, Hideaki TATENOI, Masahiro OTA, Tomoki HASE
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Publication number: 20220364762Abstract: Provided are a heat exchanger that makes it possible to supply air of an appropriate temperature to a plurality of blowing ports of an air-conditioning unit, an air-conditioning unit that comprises the heat exchanger, and an air conditioner. This air-conditioning unit 10 comprises a heat exchanger 20 that exchanges heat between air and a coolant, a blower 11, and an air outflow part 12. The heat exchanger 20 comprises a plurality of tubes 21 in which the coolant flows, an inlet header 23, an outlet header 24, and a fin 22. The inlet header 23 includes: a low-temperature-side coolant inflow part 231 into which coolant that has a relatively low temperature can flow; and a high-temperature-side coolant inflow part 232 into which coolant that has a relatively high temperature can flow.Type: ApplicationFiled: June 26, 2020Publication date: November 17, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: TOMOKI HASE, HIDEAKI TATENOI, NOBUYA NAKAGAWA, YASUO KATAYAMA
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Patent number: 8744673Abstract: In a vehicle air conditioner for a vehicle cabin interior is split into a plurality of air-conditioned zones, that is capable of independent air conditioning control for individual air-conditioned zones, provided is a solar radiation sensor that measures solar radiation levels individually for a first air-conditioned zone and a second air-conditioned zone adjacent thereto; a judging unit (100) that judges whether or not a difference between the solar radiation level of the first air-conditioned zone and the solar radiation level of the second air-conditioned zone falls within a predetermined range; a first controller (101) that performs identical air conditioning control for the first air-conditioned zone and the second air-conditioned zone when the difference falls within the predetermined range; and a second controller (102) that performs independent air conditioning control individually for the first air-conditioned zone and the second air-conditioned zone when the difference falls outside the predetermineType: GrantFiled: October 9, 2009Date of Patent: June 3, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Suzuki Motor CorporationInventors: Katsunari Shiroyama, Hideaki Tatenoi, Tomoki Izawa, Yasushi Ohta, Shigeki Ishikawa
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Publication number: 20110160958Abstract: In a vehicle air conditioner for a vehicle cabin interior is split into a plurality of air-conditioned zones, that is capable of independent air conditioning control for individual air-conditioned zones, provided is a solar radiation sensor that measures solar radiation levels individually for a first air-conditioned zone and a second air-conditioned zone adjacent thereto; a judging unit (100) that judges whether or not a difference between the solar radiation level of the first air-conditioned zone and the solar radiation level of the second air-conditioned zone falls within a predetermined range; a first controller (101) that performs identical air conditioning control for the first air-conditioned zone and the second air-conditioned zone when the difference falls within the predetermined range; and a second controller (102) that performs independent air conditioning control individually for the first air-conditioned zone and the second air-conditioned zone when the difference falls outside the predetermineType: ApplicationFiled: October 9, 2009Publication date: June 30, 2011Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., SUZUKI MOTOR CORPORATIONInventors: Katsunari Shiroyama, Hideaki Tatenoi, Tomoki Izawa, Yasushi Ohta, Shigeki Ishikawa
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Publication number: 20100095689Abstract: A vehicle air conditioner that can increase the range of energy-saving operation by stopping an engine without impairing the air conditioning comfort and a method for controlling the vehicle air conditioner are provided.Type: ApplicationFiled: October 10, 2008Publication date: April 22, 2010Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., SUZUKI MOTOR CORPORATIONInventors: Katsunari Shiroyama, Shiro Matsubara, Hideaki Tatenoi, Masahiro Nakayama, Mituru Murakami, Hajime Utiyama, Yorisada Kondo