Patents by Inventor Masami Yasuda

Masami Yasuda 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: 20240133577
    Abstract: The control unit causes a heater to operate when a temperature of a supply air flow is equal to or lower than a first temperature threshold, the temperature of the supply air flow being measured by an outdoor air temperature sensor while an air supply blower and an exhaust blower are in operation and the heater is stopped; and controls a protective operation mode when a temperature of the supply air flow is equal to or lower than a second temperature threshold, the protective operation mode being a mode in which the air supply blower is intermittently operated or is stopped and the exhaust blower continues operation, the temperature of the supply air flow being measured by the outdoor air temperature sensor after the heater is caused to operate.
    Type: Application
    Filed: May 24, 2021
    Publication date: April 25, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masami YASUDA, Kohei HASEGAWA, Shigenori KOIZUMI, Yutaro HAYAMIZU
  • Publication number: 20230101146
    Abstract: A heating control device includes an estimating unit to estimate a latent heat load of air present in a ventilation target space as a ventilation target and a heating control unit to control, in accordance with the latent heat load estimated by the estimating unit, a temperature of heating outside air by a heat exchanger to heat outside air supplied to the ventilation target space, via control of a condensation temperature of a refrigerant in the heat exchanger. The estimating unit estimates the latent heat load from ?X, which is a value obtained by subtracting, from a target absolute humidity (X0) set by a temperature/humidity setting device to set a target humidity of an interior as the ventilation target space, an absolute humidity (Xi) of the interior detected by an indoor humidity sensor.
    Type: Application
    Filed: May 12, 2020
    Publication date: March 30, 2023
    Inventors: Mamoru HAMADA, Masami YASUDA, Shohei YOSHIDA, Hayato HORIE
  • Patent number: 11181285
    Abstract: A control unit determines, on the basis of a temperature and humidity detected by sensors, whether outdoor air cooling that takes outdoor air into a room is effective. Upon determination that the outdoor air cooling is effective, the control unit opens a damper and causes stoppage of an air supply fan disposed in an air supply path. Due to such operation, indoor air passing through an air discharge path bypasses a total heat exchanger by passing through a bypass air path, and thereby is discharged to the outdoors as exhaust air. However, due to stoppage of the air supply fan, although the outdoor air does not flow through the air supply path, the outdoor air flows into a building from an opening of the building.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: November 23, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mamoru Hamada, Hayato Horie, Masami Yasuda
  • Publication number: 20200326086
    Abstract: A control unit determines, on the basis of a temperature and humidity detected by sensors, whether outdoor air cooling that takes outdoor air into a room is effective. Upon determination that the outdoor air cooling is effective, the control unit opens a damper and causes stoppage of an air supply fan disposed in an air supply path. Due to such operation, indoor air passing through an air discharge path bypasses a total heat exchanger by passing through a bypass air path, and thereby is discharged to the outdoors as exhaust air. However, due to stoppage of the air supply fan, although the outdoor air does not flow through the air supply path, the outdoor air flows into a building from an opening of the building.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 15, 2020
    Inventors: Mamoru HAMADA, Hayato HORIE, Masami YASUDA
  • Patent number: 10330365
    Abstract: 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: Grant
    Filed: May 13, 2014
    Date of Patent: June 25, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hayato Horie, Mamoru Hamada, Masaki Toyoshima, Hidemoto Arai, Masami Yasuda
  • Patent number: 10203122
    Abstract: 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: Grant
    Filed: July 4, 2014
    Date of Patent: February 12, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masahiro Hasegawa, Masami Yasuda, Hidemoto Arai
  • Publication number: 20170159964
    Abstract: 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: Application
    Filed: July 4, 2014
    Publication date: June 8, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidemoto ARAI, Masami YASUDA, Masahiro HASEGAWA, Fumio SAITO
  • Publication number: 20170108231
    Abstract: 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: Application
    Filed: July 4, 2014
    Publication date: April 20, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masahiro HASEGAWA, Masami YASUDA, Hidemoto ARAI
  • Publication number: 20170097165
    Abstract: 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: Application
    Filed: July 4, 2014
    Publication date: April 6, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masami YASUDA, Hidemoto ARAI, Fumio SAITO, Masahiro HASEGAWA
  • Publication number: 20170051959
    Abstract: 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: Application
    Filed: May 13, 2014
    Publication date: February 23, 2017
    Inventors: Hayato HORIE, Mamoru HAMADA, Masaki TOYOSHIMA, Hidemoto ARAI, Masami YASUDA
  • Publication number: 20130048267
    Abstract: A ventilation and air-conditioning apparatus includes a supply-air passage that leads from a supply-air intake port to a supply-air blowout port, a discharge-air passage that leads from a discharge-air intake port to a discharge-air blowout port, a heat exchanger that performs heat exchange between air currents flowing through a supply-air passage and a discharge-air passage, a supply-air blower that supplies air to a room, a discharge-air blower that discharges air outside a room, a damper that switches whether to pass discharge air through the heat exchanger, a temperature sensor that measures a temperature of air supplied to a room, and a control unit that controls the supply-air blower, the discharge-air blower, and the damper. The control unit controls a throttling degree of the damper based on an output of the temperature sensor so that a temperature of air supplied to a room approaches a predetermined temperature.
    Type: Application
    Filed: June 11, 2010
    Publication date: February 28, 2013
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masayuki Koretomo, Masami Yasuda, Hidemoto Arai, Masahiro Hasegawa, Kenta Okeya
  • Patent number: 8274572
    Abstract: An electronic camera includes an imaging device. The imaging device has an imaging surface capturing an object scene and repeatedly outputs an object scene image. An orientation of the imaging surface is repeatedly changed by a CPU corresponding to a group photograph mode under which a group of a plurality of faces is captured. The CPU detects a face image from the object scene image outputted from the imaging device in association with a changing process of the orientation of the imaging surface. Furthermore, the CPU decides an angle range within which the group of a plurality of faces is contained based on a detection result of the face image. In addition, the CPU combines the plurality of object scene images outputted from the imaging device so as to create a combined image corresponding to the decided angle range. The created combined image is recorded in a recording medium.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: September 25, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Masayoshi Okamoto, Masami Yasuda
  • Publication number: 20090185056
    Abstract: An electronic camera includes an imaging device. The imaging device has an imaging surface capturing an object scene and repeatedly outputs an object scene image. An orientation of the imaging surface is repeatedly changed by a CPU corresponding to a group photograph mode under which a group of a plurality of faces is captured. The CPU detects a face image from the object scene image outputted from the imaging device in association with a changing process of the orientation of the imaging surface. Furthermore, the CPU decides an angle range within which the group of a plurality of faces is contained based on a detection result of the face image. In addition, the CPU combines the plurality of object scene images outputted from the imaging device so as to create a combined image corresponding to the decided angle range. The created combined image is recorded in a recording medium.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 23, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Masayoshi OKAMOTO, Masami YASUDA
  • Patent number: 5321238
    Abstract: A terminal banking apparatus for processing bills and checks includes an input apparatus for inputting the number of each account and the amount of bills or checks at a front counter of a bank, a tentative paying file for storing the number of each account and the corresponding amount input from the input apparatus, a magnetic ink character reader for reading the number of the account described by magnetic ink characters on each of the bills or checks carried, and an amount reader for reading the amount described on the bills or checks stored in the tentative paying file depending on the number of the account read by the character reader.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: June 14, 1994
    Assignee: Fujitsu Limited
    Inventors: Hideo Kamata, Masami Yasuda, Satoshi Kataoka, Hideyuki Inaoka, Tomohiro Matsuhashi, Eiichi Watanabe
  • Patent number: 4984281
    Abstract: In a magnetic ink character recognition system provided in a magnetic ink character reader, the system includes; a read unit for detecting magnetic flux generated from each magnetic ink character separately printed in every field in a check or bill, and outputting a digital signal read therefrom; a storage unit operatively connected to the read unit for storing the digital signals output from the read unit; a field sort unit operatively connected to the storage unit for receiving the digital signals from the storage unit in every field and sorting the digital read signals for each field; a decision unit operatively connected to the field sort unit for receiving the digital read signal sorted by the field sort unit, judging the thickness of the magnetic ink character in every field, and determining a representative thickness value in every field; a correction unit operatively connected to the storage unit and the decision unit for receiving the digital signals from the storage unit and correcting the digital s
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: January 8, 1991
    Assignee: Fujitsu Limited
    Inventors: Tomohiro Matsuhashi, Hideo Kamata, Masami Yasuda, Satoshi Kataoka, Hideyuki Inaoka, Eiichi Watanabe