Patents by Inventor Takayuki Takashige

Takayuki Takashige 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: 20200244205
    Abstract: A current value determination device provided with: a capacitor current computation unit for computing the capacitor current of a capacitor included in a high-voltage circuit that drives a motor, on the basis of the input voltage of an inverter included in the high-voltage circuit and the revolution speed of the motor; and a capacitor current determination unit for determining the value of capacitor current on the basis of the input voltage of the inverter, the revolution speed of the motor, the capacitor current computed by the capacitor current computation unit, and a prescribed model for determination.
    Type: Application
    Filed: August 15, 2018
    Publication date: July 30, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Takayuki TAKASHIGE, Kyohei WATANABE
  • Publication number: 20200232453
    Abstract: A control device for a compressor includes an operation stop control unit that stops the compressor in a procedure different from a normal stop request signal when a signal different from the normal stop request signal that requests the compressor to stop in a predetermined procedure and a forced stop request signal from a device including the compressor is detected. The operation stop control unit stops the compressor in the different procedure according to a speed of the compressor when the forced stop request signal is detected.
    Type: Application
    Filed: August 15, 2018
    Publication date: July 23, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Toyohisa KAWASHIMA, Takayuki TAKASHIGE
  • Publication number: 20200195086
    Abstract: A capacitor unit (20) includes: a harness side terminal (23) provided in a housing (22) for accommodating a capacitor main body therein and connectable to an electric power harness for supplying DC power from an outside; and a board side terminal (24) connectable to a circuit board from which the DC power is output via the capacitor main body. The board side terminal (24) extends in a plate shape from a base portion (24b) held in the housing (22) toward a distal end portion (24a) connected to the circuit board, and has a notch portion (40) recessed inward of the board side terminal (24) in a width direction between the base portion (24b) and the distal end portion (24a).
    Type: Application
    Filed: November 1, 2017
    Publication date: June 18, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Hiroyuki KAMITANI, Hiroto HIGUCHI, Takayuki TAKASHIGE
  • Patent number: 10662946
    Abstract: This electric compressor includes a compressor which rotates to compress a fluid, a motor which rotatably drives the compressor, and a control unit which controls current supply to the motor using first and second components. An allowable current for first and second components exposed to the same temperature is set to be smaller in the second component than in the first component. The second component is disposed at a place in which cooling capability is greater than that of the first component so that allowable power of the second component at rated use is greater than allowable power of the first component. This electric compressor includes a temperature sensor which detects the temperature of the first component and a calculation unit which outputs an alarm signal when the detected temperature and a current flowing in the first component satisfy a predetermined condition.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: May 26, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Takashi Nakagami, Takayuki Takashige
  • Patent number: 10488093
    Abstract: Provided is an air conditioning apparatus that is capable of suppressing increases in volume and cost of the apparatus and performing more suitable overheating protection. An electric compressor is an inverter-integrated electric compressor (10) integrally including a compressor (5), an electric motor (6) that drives the compressor (5), and an inverter (7) including a temperature sensor (11) that detects the temperature in the vicinity of a semiconductor switching device, wherein a controller (3) estimates a discharge temperature of the compressor (5) on the basis of a correlation of respective pressure loading characteristics for the detected temperature of the inverter (7), for the rotational speed of the compressor (5), and for the motive force of the compressor (5) in a refrigerating cycle (2).
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: November 26, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takayuki Hagita, Takayuki Takashige, Nobuya Nakagawa, Mikihiko Ishii, Takeshi Hirano, Koji Nakano, Masayuki Ishikawa
  • Patent number: 10492303
    Abstract: A substrate includes a substrate body, a flux coating portion which is coated with flux promoting solder fluidity on a surface of the substrate body, a conduction portion which is disposed on the surface of the substrate body to be separated from the flux coating portion and is conductive, and a silk portion which is disposed between the flux coating portion and the conduction portion on the surface of the substrate body and is provided by silk printing.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: November 26, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto Hattori, Hiroyuki Kamitani, Hiroto Higuchi, Takayuki Takashige
  • Publication number: 20190309740
    Abstract: An electric compressor includes: a circuit board on which a plurality of switching elements (33) are mounted; a compression mechanism which is driven by a motor operated using AC power output from the switching elements (33); and a lead holding member (50) disposed between element main bodies (33a) of the switching elements (33) and the circuit board. The circuit board includes a plurality of through-holes through which a plurality of leads (33b) that extend from the element main bodies (33a) can be respectively inserted. The lead holding member (50) includes lead insertion holes (53) through which the leads (33b) can be inserted such that positions of the leads (33b) is held at positions that correspond to positions of the through-holes.
    Type: Application
    Filed: November 1, 2017
    Publication date: October 10, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Hiroyuki KAMITANI, Hiroto HIGUCHI, Takayuki TAKASHIGE
  • Patent number: 10406890
    Abstract: A circuit assembly (20) provided with: a circuit board (21); a capacitor (30) connected to the circuit board (21); and a circuit casing (20C) configured to house the circuit board (21) and the capacitor (30). The capacitor (30) is provided with: a component body (31) including a pair of connection terminals (32A and 33A) to be fixed to the circuit board (21); and a first fixing unit (41) and a second fixing unit (42) configured to fix the component body (31) to the circuit casing (20C) at both sides. The connection terminals (32A and 33A) are disposed with a fixed line (L1) connecting the first fixing unit (41) and the second fixing unit (42) interposed therebetween, and both of the pair of connection terminals (32A and 33A) protrudes sideward from the component body (31) between a first surface of the circuit board (21) and the circuit casing (20C), and extends toward the circuit board (21).
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: September 10, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Shunsuke Yakushiji, Takayuki Takashige, Hiroto Higuchi
  • Publication number: 20190267190
    Abstract: A capacitor unit (20) includes: a harness side terminal (23) provided on a first end portion (22a) side of a first surface of a housing (22) for accommodating a capacitor main body therein; a board side terminal (24) provided in the housing (22) and connectable to a circuit board; and a plurality of guide portions (25) that protrude from the first surface and extend from a second end portion (22b) on a side opposite to the first end portion (22a) toward the first end portion (22a). The plurality of guide portions (25) are provided to be separated in a second direction orthogonal to a first direction of connecting the first end portion (22a) and the second end portion (22b) to each other so as to sandwich the harness side terminal (23) therebetween.
    Type: Application
    Filed: November 2, 2017
    Publication date: August 29, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Hiroyuki KAMITANI, Hiroto HIGUCHI, Takayuki TAKASHIGE
  • Patent number: 10320172
    Abstract: An electric wire lead-in part structure (15) includes: a conductor insertion hole (16) formed through a wall part (2Ca) of an inverter accommodating chamber; a conductor member (17) made of an electrically conductive material and inserted into the conductor insertion hole (16) in a waterproof manner and also, electrically conducted to the conductor insertion hole (16) and holding a power supply cable (11) passed therethrough; a shield grounding part (50) for electrically conducting a shield part (45) of the power supply cable (11) to the conductor member (17) at a position where the conductor member (17) is provided; and an electric wire waterproofing part (40) for waterproofing a gap between the conductor member (17) and the power supply cable (11).
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: June 11, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto Hattori, Hiroyuki Kamitani, Hiroto Higuchi, Takayuki Takashige, Takeo Hayashi
  • Patent number: 10253763
    Abstract: An object is to provide a motor-driven compressor capable of reducing cost required when a failure occurs in part of components configuring an inverter device. A power substrate assembly 50 is removably fixed to a housing body 10 in an inverter accommodation chamber 13, and a control substrate assembly 70 and a filter circuit assembly 90 are removably fixed to a cover 30. Therefore, when the cover 30 is removed from the housing body 10, the power substrate assembly 50, the control substrate assembly 70, and the filter circuit assembly 90 can be independently removed from the housing body 10 or the cover 30, and new power substrate assembly 50, control substrate assembly 70, and filter circuit assembly 90 can be independently mounted on the housing body 10 or the cover 30.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: April 9, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.
    Inventors: Takashi Nakagami, Takayuki Takashige, Hiroyuki Kamitani, Koji Nakano
  • Patent number: 10236121
    Abstract: A capacitor unit is integrally provided with: a capacitor main body; a pair of bus bars that are connected to a pair of corresponding electrodes of the capacitor main body; and a casing that internally contains the capacitor main body and the bus bars and is made of resin. The bus bars are each provided with an input terminal on a first end side to which a connection terminal of a high-voltage cable for DC power is connected, while being each provided with an output terminal on a second end side to which an inverter substrate is connected.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 19, 2019
    Assignee: Mitsubishi Heavy Industries Thermal Systems, Ltd.
    Inventors: Makoto Hattori, Hiroyuki Kamitani, Hiroto Higuchi, Takayuki Takashige
  • Publication number: 20190047371
    Abstract: A circuit assembly (20) provided with: a circuit board (21); a capacitor (30) connected to the circuit board (21); and a circuit casing (20C) configured to house the circuit board (21) and the capacitor (30). The capacitor (30) is provided with: a component body (31) including a pair of connection terminals (32A and 33A) to be fixed to the circuit board (21); and a first fixing unit (41) and a second fixing unit (42) configured to fix the component body (31) to the circuit casing (20C) at both sides. The connection terminals (32A and 33A) are disposed with a fixed line (L1) connecting the first fixing unit (41) and the second fixing unit (42) interposed therebetween, and both of the pair of connection terminals (32A and 33A) protrudes sideward from the component body (31) between a first surface of the circuit board (21) and the circuit casing (20C), and extends toward the circuit board (21).
    Type: Application
    Filed: December 12, 2016
    Publication date: February 14, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Shunsuke YAKUSHIJI, Takayuki TAKASHIGE, Hiroto HIGUCHI
  • Publication number: 20190052070
    Abstract: An electric wire lead-in part structure (15) includes: a conductor insertion hole (16) formed through a wall part (2Ca) of an inverter accommodating chamber; a conductor member (17) made of an electrically conductive material and inserted into the conductor insertion hole (16) in a waterproof manner and also, electrically conducted to the conductor insertion hole (16) and holding a power supply cable (11) passed therethrough; a shield grounding part (50) for electrically conducting a shield part (45) of the power supply cable (11) to the conductor member (17) at a position where the conductor member (17) is provided; and an electric wire waterproofing part (40) for waterproofing a gap between the conductor member (17) and the power supply cable (11).
    Type: Application
    Filed: June 19, 2017
    Publication date: February 14, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Hiroyuki KAMITANI, Hiroto HIGUCHI, Takayuki TAKASHIGE, Takeo HAYASHI
  • Publication number: 20190053384
    Abstract: A substrate includes a substrate body, a flux coating portion which is coated with flux promoting solder fluidity on a surface of the substrate body, a conduction portion which is disposed on the surface of the substrate body to be separated from the flux coating portion and is conductive, and a silk portion which is disposed between the flux coating portion and the conduction portion on the surface of the substrate body and is provided by silk printing.
    Type: Application
    Filed: September 5, 2016
    Publication date: February 14, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Hiroyuki KAMITANI, Hiroto HIGUCHI, Takayuki TAKASHIGE
  • Publication number: 20180358177
    Abstract: A capacitor unit is integrally provided with: a capacitor main body; a pair of bus bars that are connected to a pair of corresponding electrodes of the capacitor main body; and a casing that internally contains the capacitor main body and the bus bars and is made of resin. The bus bars are each provided with an input terminal on a first end side to which a connection terminal of a high-voltage cable for DC power is connected, while being each provided with an output terminal on a second end side to which an inverter substrate is connected.
    Type: Application
    Filed: December 1, 2016
    Publication date: December 13, 2018
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Hiroyuki KAMITANI, Hiroto HIGUCHI, Takayuki TAKASHIGE
  • Patent number: 10149385
    Abstract: An affixing structure that reduces costs and reduces the risk of vibration causing damage or the like to electrical connection terminals on an electronic component affixed to a circuit board is provided. In the affixing structure, which is affixed to a circuit board (21) via a plurality of lead frames (55) that are part of a transformer (50), at least one second side wall perpendicular to a first side wall where the lead frames (55) are arranged is adhesively supported on the circuit board (21) by a support (60). The height (H3) of the part of the support (60) in contact with the transformer (50) is greater than or equal to the height (H2) of the center of gravity of the electronic component, and the length (L) of the support (60) in the direction of the first side wall is greater than or equal to the height (H3).
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: December 4, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Shunsuke Yakushiji, Hitoshi Tamaki, Takayuki Takashige
  • Publication number: 20180058454
    Abstract: This electric compressor includes a compressor which rotates around an axis to compress a fluid, a motor which rotatably drives the compressor around the axis, and a control unit having a first component and a second component and controlling current supply to the motor during driving using the first component and the second component. An allowable current when the first component and the second component are exposed to the same temperature is set to be smaller in the second component than in the first component. The second component is disposed at a place in which cooling capability is greater than that of the first component so that allowable power of the second component at rated use is set to be greater than an allowable power of the first component.
    Type: Application
    Filed: February 16, 2016
    Publication date: March 1, 2018
    Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.
    Inventors: Takashi NAKAGAMI, Takayuki TAKASHIGE
  • Publication number: 20180003424
    Abstract: Provided is an air conditioning apparatus that is capable of suppressing increases in volume and cost of the apparatus and performing more suitable overheating protection. An electric compressor is an inverter-integrated electric compressor (10) integrally including a compressor (5), an electric motor (6) that drives the compressor (5), and an inverter (7) including a temperature sensor (11) that detects the temperature in the vicinity of a semiconductor switching device, wherein a controller (3) estimates a discharge temperature of the compressor (5) on the basis of a correlation of respective pressure loading characteristics for the detected temperature of the inverter (7), for the rotational speed of the compressor (5), and for the motive force of the compressor (5) in a refrigerating cycle (2).
    Type: Application
    Filed: September 18, 2017
    Publication date: January 4, 2018
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takayuki Hagita, Takayuki Takashige, Nobuya Nakagawa, Mikihiko Ishii, Takeshi Hirano, Koji Nakano, Masayuki Ishikawa
  • Patent number: 9791196
    Abstract: Provided is an air conditioning apparatus that is capable of suppressing increases in volume and cost of the apparatus and performing more suitable overheating protection. An electric compressor is an inverter-integrated electric compressor integrally including a compressor, an electric motor that drives the compressor, and an inverter including a temperature sensor that detects the temperature in the vicinity of a semiconductor switching device, wherein a controller estimates a discharge temperature of the compressor on the basis of a correlation of respective pressure loading characteristics for the detected temperature of the inverter, for the rotational speed of the compressor, and for the motive force of the compressor in a refrigerating cycle.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: October 17, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takayuki Hagita, Takayuki Takashige, Nobuya Nakagawa, Mikihiko Ishii, Takeshi Hirano, Koji Nakano, Masayuki Ishikawa