Patents by Inventor Hidemoto Arai
Hidemoto Arai 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: 10352629Abstract: The present invention relates to a heat exchange element in which unit constituent members, each of which includes a partition member that has a heat-transfer property and a moisture permeability and a spacing member that holds the partition member with a predetermined spacing, are stacked and in which a primary air flow that passes along an upper surface side of the partition member and a secondary air flow that passes along an undersurface side of the partition member and crosses the primary air flow exchange heat and moisture through the partition member, wherein a detachment suppressing rib is provided on the opposite side of the spacing member when viewed from the partition member at a bonded portion between the partition member and the spacing member, and the partition member is sandwiched by the spacing member and the detachment suppressing rib.Type: GrantFiled: April 25, 2017Date of Patent: July 16, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaru Takada, Hajime Sotokawa, Yuichi Ishimaru, Takanori Imai, Mitsuhiko Ohira, Hidemoto Arai, Makoto Fukaya, Fumiaki Baba, Koji Kise, Shinya Tokizaki, Yuichi Matsuo
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Patent number: 10330365Abstract: A refrigerant circuit forming a refrigeration cycle by connecting together a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger via a refrigerant pipe; and a control unit controlling a blown-out air temperature by causing the indoor heat exchanger to exchange heat while controlling the refrigeration cycle based on one of a sensible heat capability and a latent heat capability calculated from a cooling capability of the refrigerant circuit and a cooling load of the refrigerant circuit. The control unit includes: a capability judging unit judging the cooling capability of the refrigerant circuit based on the one of the sensible heat capability and the latent heat capability; and a control selecting unit selecting one from between superheat degree control to control a degree of superheat and evaporating temperature control to control an evaporating temperature, based on a determination result obtained by the capability judging unit.Type: GrantFiled: May 13, 2014Date of Patent: June 25, 2019Assignee: Mitsubishi Electric CorporationInventors: Hayato Horie, Mamoru Hamada, Masaki Toyoshima, Hidemoto Arai, Masami Yasuda
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Patent number: 10203122Abstract: An air-conditioning and ventilation apparatus includes an air-conditioning coil that is installed on a downstream side of a heat exchanger in a supply air trunk and changes cooling capacity with respect to heat-exchanged outdoor air in multiple stages; an outdoor-air temperature and humidity sensor that detects temperature and relative humidity of the outdoor air; and a control unit that stores therein reference data in which the cooling capacity is set for each combination of temperature and relative humidity of the outdoor air such that absolute humidity of supply air becomes equal to or lower than indoor target absolute humidity on the basis of a dehumidification load corresponding to an absolute humidity difference between indoors and outdoors, and determines a cooling capacity value of the air-conditioning coil on the basis of detection results during a cooling operation by the outdoor-air temperature and humidity sensor and the reference data.Type: GrantFiled: July 4, 2014Date of Patent: February 12, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masahiro Hasegawa, Masami Yasuda, Hidemoto Arai
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Patent number: 10006649Abstract: An air-conditioning system is configured to determine an evaporating temperature control range of a first refrigerant circuit on the basis of the temperature of outdoor air, control an evaporating temperature of the first refrigerant circuit to a target evaporating temperature determined within the evaporating temperature control range of the first refrigerant circuit, determine an evaporating temperature control range of a second refrigerant circuit on the basis of the humidity of the outdoor air, and control an evaporating temperature of the second refrigerant circuit to a target evaporating temperature determined within the evaporating temperature control range of the second refrigerant circuit.Type: GrantFiled: March 5, 2013Date of Patent: June 26, 2018Assignee: Mitsubishi Electric CorporationInventors: Mamoru Hamada, Fumitake Unezaki, Naomichi Tamura, Kazunobu Nishimiya, Hidemoto Arai
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Patent number: 9874360Abstract: Maximum evaporating temperature setting values and minimum evaporating temperature setting values in an indoor heat exchanger and a ventilator cooler are determined in accordance with outdoor air temperature and humidity, evaporating temperature setting values in the indoor heat exchanger and the ventilator cooler are set to be between the respective maximum evaporating temperature setting values and the respective minimum evaporating temperature setting values, and evaporating temperatures in the indoor heat exchanger and the ventilator cooler are controlled so as to be the respective evaporating temperature setting values.Type: GrantFiled: May 14, 2013Date of Patent: January 23, 2018Assignee: Mitsubishi Electric CorporationInventors: Mamoru Hamada, Fumitake Unezaki, Naomichi Tamura, Kazunobu Nishimiya, Hidemoto Arai
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Patent number: 9863710Abstract: A laminated total heat exchange element that includes a plurality of laminated plates, a first spacing member forming a first flow path between the laminated plates, and a second spacing member forming a second flow path between the laminated plates, wherein the first flow path is formed to allow fluid to pass from one side to another side of the laminated total heat exchange element, the second flow path is formed to allow fluid to pass from the another side to the one side of the laminated total heat exchange element, a third flow path, which communicates with the first flow path on the one side and extends substantially parallel to a lamination direction of the laminated plates, is formed, and a fourth flow path, which communicates with the second flow path on the another side and extends substantially parallel to the lamination direction of the laminated plate, is formed.Type: GrantFiled: May 9, 2013Date of Patent: January 9, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Koji Kise, Masaru Shinozaki, Masaru Takada, Hajime Sotokawa, Yuichi Ishimaru, Hidemoto Arai
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Publication number: 20170227300Abstract: The present invention relates to a heat exchange element in which unit constituent members, each of which includes a partition member that has a heat-transfer property and a moisture permeability and a spacing member that holds the partition member with a predetermined spacing, are stacked and in which a primary air flow that passes along an upper surface side of the partition member and a secondary air flow that passes along an undersurface side of the partition member and crosses the primary air flow exchange heat and moisture through the partition member, wherein a detachment suppressing rib is provided on the opposite side of the spacing member when viewed from the partition member at a bonded portion between the partition member and the spacing member, and the partition member is sandwiched by the spacing member and the detachment suppressing rib.Type: ApplicationFiled: April 25, 2017Publication date: August 10, 2017Applicant: Mitsubishi Electric CorporationInventors: Masaru Takada, Hajime Sotokawa, Yuichi Ishimaru, Takanori Imai, Mitsuhiko Ohira, Hidemoto Arai, Makoto Fukaya, Fumiaki Baba, Koji Kise, Shinya Tokizaki, Yuichi Matsuo
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Publication number: 20170159964Abstract: A ventilation device includes a temperature regulating coil that is capable of changing the cooling capacity at multiple stages, and that cools a supplied-air flow after having undergone total heat exchange by a total heat exchanger, a target indoor-humidity storage unit that stores therein a target indoor humidity that is a target value of the indoor-air humidity, and a control unit that decides the cooling capacity of the temperature regulating coil, such that the humidity of the supplied-air flow becomes the target indoor humidity, based on measurement values of an outside-air temperature sensor and an outside-air humidity sensor when the target indoor humidity is lower than an actual measurement value of the indoor-air humidity measured by an indoor humidity sensor.Type: ApplicationFiled: July 4, 2014Publication date: June 8, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hidemoto ARAI, Masami YASUDA, Masahiro HASEGAWA, Fumio SAITO
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Patent number: 9664452Abstract: The present invention relates to a heat exchange element in which unit constituent members, each of which includes a partition member that has a heat-transfer property and a moisture permeability and a spacing member that holds the partition member with a predetermined spacing, are stacked and in which a primary air flow that passes along an upper surface side of the partition member and a secondary air flow that passes along an undersurface side of the partition member and crosses the primary air flow exchange heat and moisture through the partition member, wherein a detachment suppressing rib is provided on the opposite side of the spacing member when viewed from the partition member at a bonded portion between the partition member and the spacing member, and the partition member is sandwiched by the spacing member and the detachment suppressing rib.Type: GrantFiled: June 13, 2012Date of Patent: May 30, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaru Takada, Hajime Sotokawa, Yuichi Ishimaru, Takanori Imai, Mitsuhiko Ohira, Hidemoto Arai, Makoto Fukaya, Fumiaki Baba, Koji Kise, Shinya Tokizaki, Yuichi Matsuo
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Patent number: 9664457Abstract: The present invention is a total heat exchange element in which a spacing member is provided on both sides of a sheet-like partition member to form a flow path and which performs heat exchange between an airflow that flows in a flow path formed on one side of the partition member and an airflow that flows in a flow path formed on another side of the partition member via the partition member, wherein the spacing member is molded integrally with the partition member by using a resin, and the partition member is configured to include a functional layer that has heat conductivity, moisture permeability, and gas shielding property and a heat shrink layer that shrinks at a predetermined temperature or higher.Type: GrantFiled: October 26, 2011Date of Patent: May 30, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaru Takada, Shinya Tokizaki, Hajime Sotokawa, Yuichi Ishimaru, Takanori Imai, Hidemoto Arai
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Publication number: 20170108231Abstract: An air-conditioning and ventilation apparatus includes an air-conditioning coil that is installed on a downstream side of a heat exchanger in a supply air trunk and changes cooling capacity with respect to heat-exchanged outdoor air in multiple stages; an outdoor-air temperature and humidity sensor that detects temperature and relative humidity of the outdoor air; and a control unit that stores therein reference data in which the cooling capacity is set for each combination of temperature and relative humidity of the outdoor air such that absolute humidity of supply air becomes equal to or lower than indoor target absolute humidity on the basis of a dehumidification load corresponding to an absolute humidity difference between indoors and outdoors, and determines a cooling capacity value of the air-conditioning coil on the basis of detection results during a cooling operation by the outdoor-air temperature and humidity sensor and the reference data.Type: ApplicationFiled: July 4, 2014Publication date: April 20, 2017Applicant: Mitsubishi Electric CorporationInventors: Masahiro HASEGAWA, Masami YASUDA, Hidemoto ARAI
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Publication number: 20170097165Abstract: A ventilation device includes a temperature regulating coil that is capable of changing the heating capacity at multiple stages, and that heats a supplied-air flow after having undergone total heat exchange by a total heat exchanger, a humidifying element that humidifies a supplied-air flow heated by the temperature regulating coil, a target indoor-humidity storage unit that stores therein a target indoor humidity that is a target value of the indoor-air humidity, and a control unit that decides the heating capacity of the temperature regulating coil, such that the humidity of the supplied-air flow becomes the target indoor humidity, based on measurement values of an outside-air temperature sensor and an outside-air humidity sensor when the target indoor humidity is higher than an actual measurement value of the indoor-air humidity measured by an indoor humidity sensor.Type: ApplicationFiled: July 4, 2014Publication date: April 6, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masami YASUDA, Hidemoto ARAI, Fumio SAITO, Masahiro HASEGAWA
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Publication number: 20170051959Abstract: A refrigerant circuit forming a refrigeration cycle by connecting together a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger via a refrigerant pipe; and a control unit controlling a blown-out air temperature by causing the indoor heat exchanger to exchange heat while controlling the refrigeration cycle based on one of a sensible heat capability and a latent heat capability calculated from a cooling capability of the refrigerant circuit and a cooling load of the refrigerant circuit. The control unit includes: a capability judging unit judging the cooling capability of the refrigerant circuit based on the one of the sensible heat capability and the latent heat capability; and a control selecting unit selecting one from between superheat degree control to control a degree of superheat and evaporating temperature control to control an evaporating temperature, based on a determination result obtained by the capability judging unit.Type: ApplicationFiled: May 13, 2014Publication date: February 23, 2017Inventors: Hayato HORIE, Mamoru HAMADA, Masaki TOYOSHIMA, Hidemoto ARAI, Masami YASUDA
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Publication number: 20160084511Abstract: Maximum evaporating temperature setting values and minimum evaporating temperature setting values in an indoor heat exchanger and a ventilator cooler are determined in accordance with outdoor air temperature and humidity, evaporating temperature setting values in the indoor heat exchanger and the ventilator cooler are set to be between the respective maximum evaporating temperature setting values and the respective minimum evaporating temperature setting values, and evaporating temperatures in the indoor heat exchanger and the ventilator cooler are controlled so as to be the respective evaporating temperature setting values.Type: ApplicationFiled: May 14, 2013Publication date: March 24, 2016Applicant: Mitsubishi Electric CorporationInventors: Mamoru HAMADA, Fumitake UNEZAKI, Naomichi TAMURA, Kazunobu NISHIMIYA, Hidemoto ARAI
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Publication number: 20150362200Abstract: An air-conditioning system is configured to determine an evaporating temperature control range of a first refrigerant circuit on the basis of the temperature of outdoor air, control an evaporating temperature of the first refrigerant circuit to a target evaporating temperature determined within the evaporating temperature control range of the first refrigerant circuit, determine an evaporating temperature control range of a second refrigerant circuit on the basis of the humidity of the outdoor air, and control an evaporating temperature of the second refrigerant circuit to a target evaporating temperature determined within the evaporating temperature control range of the second refrigerant circuit.Type: ApplicationFiled: March 5, 2013Publication date: December 17, 2015Applicant: Mitsubishi Electric CorporationInventors: Mamoru HAMADA, Fumitake UNEZAKI, Naomichi TAMURA, Kazunobu NISHIMIYA, Hidemoto ARAI
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Publication number: 20150053381Abstract: The present invention relates to a heat exchange element in which unit constituent members, each of which includes a partition member that has a heat-transfer property and a moisture permeability and a spacing member that holds the partition member with a predetermined spacing, are stacked and in which a primary air flow that passes along an upper surface side of the partition member and a secondary air flow that passes along an undersurface side of the partition member and crosses the primary air flow exchange heat and moisture through the partition member, wherein a detachment suppressing rib is provided on the opposite side of the spacing member when viewed from the partition member at a bonded portion between the partition member and the spacing member, and the partition member is sandwiched by the spacing member and the detachment suppressing rib.Type: ApplicationFiled: June 13, 2012Publication date: February 26, 2015Applicant: Mitsubishi Electric CorporationInventors: Masaru Takada, Hajime Sotokawa, Yuichi Ishimaru, Takanori Imai, Mitsuhiko Ohira, Hidemoto Arai, Makoto Fukaya, Fumiaki Baba, Koji Kise, Shinya Tokizaki, Yuichi Matsuo
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Publication number: 20150047817Abstract: A laminated total heat exchange element that includes a plurality of laminated plates, a first spacing member forming a first flow path between the laminated plates, and a second spacing member forming a second flow path between the laminated plates, wherein the first flow path is formed to allow fluid to pass from one side to another side of the laminated total heat exchange element, the second flow path is formed to allow fluid to pass from the another side to the one side of the laminated total heat exchange element, a third flow path, which communicates with the first flow path on the one side and extends substantially parallel to a lamination direction of the laminated plates, is formed, and a fourth flow path, which communicates with the second flow path on the another side and extends substantially parallel to the lamination direction of the laminated plate, is formed.Type: ApplicationFiled: May 9, 2013Publication date: February 19, 2015Inventors: Koji Kise, Masaru Shinozaki, Masaru Takada, Hajime Sotokawa, Yuichi Ishimaru, Hidemoto Arai
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Publication number: 20140242900Abstract: The present invention is a total heat exchange element in which a spacing member is provided on both sides of a sheet-like partition member to form a flow path and which performs heat exchange between an airflow that flows in a flow path formed on one side of the partition member and an airflow that flows in a flow path formed on another side of the partition member via the partition member, wherein the spacing member is molded integrally with the partition member by using a resin, and the partition member is configured to include a functional layer that has heat conductivity, moisture permeability, and gas shielding property and a heat shrink layer that shrinks at a predetermined temperature or higher.Type: ApplicationFiled: October 26, 2011Publication date: August 28, 2014Applicant: Mitsubishi Electric CorporationInventors: Masaru Takada, Shinya Tokizaki, Hajime Sotokawa, Yuichi Ishimaru, Takanori Imai, Hidemoto Arai
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Patent number: 8726978Abstract: A heat exchanger element includes partition members that include first gas passages that are passages for first gas and second gas passages that are passages for second gas and that are provided above the first gas passages, the partition members operative to partition the first gas passages and the second gas passages; spacing members that form the first gas passages and the second gas passages and that maintain a gap between the partition members; and an adhesive that adheres the partition member and the spacing member with each other. At least one of the partition member and the spacing member is made of a liquid absorbing material, and the adhesive is a water solvent adhesive in which water-soluble flame retardant is impregnated.Type: GrantFiled: May 2, 2007Date of Patent: May 20, 2014Assignee: Mitsubishi Electric CorporationInventors: Masaru Takada, Hidemoto Arai
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Patent number: 8689859Abstract: A total heat exchanging element includes a partitioning component to which a water-soluble moisture-absorbing agent has been added that is a component partitioning between a first laminar air-flow path and a second laminar air-flow path that are layered; a spacing component that forms the first laminar air-flow path and the second laminar air-flow path and maintains a space between adjacent partitioning components; and an adhesive agent that adheres the partitioning component and the spacing component. The adhesive agent is a water-solvent-type adhesive agent impregnated with a water-soluble moisture-absorbing agent. The partitioning component and the spacing component are made from a liquid-absorbing material that absorbs water and substances dissolved in the water.Type: GrantFiled: October 3, 2006Date of Patent: April 8, 2014Assignee: Mitsubishi Electric CorporationInventors: Masaru Takada, Hidemoto Arai, Takanori Imai, Yoichi Sugiyama