Patents by Inventor Makoto Hattori

Makoto Hattori 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: 20210155080
    Abstract: A current estimating device that estimates a capacitor current of a high-voltage circuit for driving a motor, wherein the current estimating device calculates a voltage utilization rate using the input voltage of an inverter included in the high-voltage circuit and the speed of the motor, calculates a first constant by applying the voltage utilization rate to a predetermined first arithmetic expression, and calculates the capacitor current of an electrical condenser included in the high-voltage circuit by multiplying the first constant by a motor current effective value.
    Type: Application
    Filed: August 15, 2018
    Publication date: May 27, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Hiroyuki KAMITANI, Hiroto HIGUCHI, Masahiro MORI, Kyohei WATANABE
  • Patent number: 10862142
    Abstract: A flow rate adjustment structure includes: a fixed member including a fixed surface on which a fixed opening is formed; a movable member including a movable surface on which a movable opening is formed, and to be displaced relative to the fixed member; and an adjustment unit that variably adjusts an overlap area or an overlap frequency between the fixed opening and the movable opening by relatively displacing the movable surface along the fixed surface.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: December 8, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yuji Okamura, Hideo Numata, Makoto Hattori
  • Publication number: 20200313582
    Abstract: This motor control device is provided with: a control unit which controls the number of rotations of a motor in accordance with a required number of rotations by implementing a first control which enables high-torque and precise control with respect to the motor, or a second control enabling more efficient control than the first control with respect to the motor; and a switching determination unit which, if an actual measurement value of the number of rotations of the motor is greater than a prescribed threshold value of the number of rotations, switches the first control to the second control. The switching determination unit further switches the first control to the second control if the actual measurement value of the number of rotations is not more than the threshold value of the number of rotations, and when a prescribed time has passed from a point in time at which the actual measurement value of the number of rotations matched the required number of rotations.
    Type: Application
    Filed: October 24, 2018
    Publication date: October 1, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Takayuki TAKASHIGE, Kyohei WATANABE
  • 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
  • Patent number: 10707769
    Abstract: A power conversion circuit board is a board on which a power conversion circuit which converts direct current to alternating current is mounted. A low voltage circuit to which a low voltage is applied and a high voltage circuit to which a high voltage is applied are separately disposed in different areas on the same board surface. Further, in the high voltage circuit, a part of a wiring is formed on the board surface, and another wiring includes a bus bar which is provided with a predetermined distance from the board surface.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: July 7, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto Hattori, Hiroyuki Kamitani, Hiroto Higuchi
  • 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
  • Publication number: 20200067113
    Abstract: A fuel gas supply system includes a valve mechanism, an upstream channel for guiding a fuel gas to the valve mechanism, a downstream channel into which the fuel gas discharged from the valve mechanism is guided, a differential pressure sensor for detecting the differential pressure between the pressure of the fuel gas in the upstream channel and the pressure of the fuel gas in the downstream channel, a first pressure sensor for detecting the pressure of the fuel gas in the upstream channel, and a second pressure sensor for detecting the pressure of the fuel gas in the downstream channel. The number of the differential pressure is one, the number of the first pressure sensor is one, and the number of the second pressure sensor is one.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Inventor: Makoto Hattori
  • Publication number: 20200059156
    Abstract: A power conversion circuit board (1) is a circuit board on which a power conversion circuit configured to convert a direct current into an alternating current is mounted. A low-voltage circuit (10b) to which a low voltage is applied and a high-voltage circuit (10a) to which a high voltage is applied are separately disposed in different areas on the same circuit board surface. Furthermore, part of wiring of the high-voltage circuit (10a) is formed on the circuit board surface, and the other wiring is constituted by a bus bar provided at a predetermined distance from the circuit board surface.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Hiroyuki KAMITANI, Hiroto HIGUCHI
  • Patent number: 10547225
    Abstract: A method for producing an electric motor provided with a stator core configured by laminating a required number of annular electromagnetic steel sheets having a plurality of tooth portions on an inner periphery thereof. The circumferential widths of the tooth portions become gradually narrower in a stepwise fashion toward an uppermost surface and an undermost surface of the plurality of laminated electromagnetic steel sheets, whereby the shoulder portions on both sides in a circumferential direction of the tooth portions smoothly change. A flexible, planar insulating member is provided having a first portion of a shape similar to a planar shape of said electromagnetic steel sheet, and further comprising flexible ear portions at positions corresponding to shoulder portions on both sides in a circumferential direction of the tooth portions.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: January 28, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto Hattori, Masahiko Asai, Kazuki Niwa
  • Patent number: 10547224
    Abstract: An electric motor is provided with a stator core (3) configured by laminating a required number of annular electromagnetic steel sheets (5) having a plurality of tooth portions (4) around each of which a coil winding is wound, on the inner periphery side, wherein circumferential widths (B) of the tooth portion (4) in the plurality of electromagnetic steel sheets (5) which are laminated on both end sides of the stator core (3) become gradually narrow coward the respective end portion sides, and the coil winding is directly wound around the tooth portion (4) in which shoulder portions (7) on doth sides in a circumferential direction of the tooth portion (4) which is formed by lamination of the electromagnetic steel sheets (5) are shoulder portions (7) which smoothly change so as to narrow in width in a stepwise fashion toward the respective end portions.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: January 28, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto Hattori, Masahiko Asai, Kazuki Niwa
  • 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: 10424990
    Abstract: Provided is an inverter-integrated electric compressor which uses the filter circuit as the substrate to eliminate a bulbar connection, improves assembly properties of the inverter device, optimizes the substrate structure, and makes the inverter device more compact and economical. In this inverter-integrated electric compressor, the inverter device is provided with multiple high-voltage electrical components which configure a noise removal filter circuit, a power substrate on which a power element is mounted, a control substrate on which a control circuit is mounted, and a filter circuit substrate which configures the filter circuit by the multiple high-voltage electrical components being connected in a pattern and mounted thereon, wherein the high-voltage electrical components, the power substrate, the control substrate and the filter circuit substrate are configured to be so as to be unitized together and housed and arranged in an inverter housing unit.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: September 24, 2019
    Assignee: Mitsubishi Heavy Industries Thermal Systems, Ltd.
    Inventors: Makoto Hattori, Masahiko Asai
  • 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
  • Publication number: 20190181711
    Abstract: A method for producing an electric motor provided with a stator core configured by laminating a required number of annular electromagnetic steel sheets having a plurality of tooth portions on an inner periphery thereof. The circumferential widths of the tooth portions become gradually narrower in a stepwise fashion toward an uppermost surface and an undermost surface of the plurality of laminated electromagnetic steel sheets, whereby the shoulder portions on both sides in a circumferential direction of the tooth portions smoothly change. A flexible, planar insulating member is provided having a first portion of a shape similar to a planar shape of said electromagnetic steel sheet, and further comprising flexible ear portions at positions corresponding to shoulder portions on both sides in a circumferential direction of the tooth portions.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 13, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto HATTORI, Masahiko ASAI, Kazuki NIWA
  • 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
  • Publication number: 20190165390
    Abstract: A flow rate adjustment structure includes: a fixed member including a fixed surface on which a fixed opening is formed; a movable member including a movable surface on which a movable opening is formed, and to be displaced relative to the fixed member; and an adjustment unit that variably adjusts an overlap area or an overlap frequency between the fixed opening and the movable opening by relatively displacing the movable surface along the fixed surface.
    Type: Application
    Filed: November 26, 2018
    Publication date: May 30, 2019
    Inventors: Yuji OKAMURA, Hideo NUMATA, Makoto HATTORI
  • 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
  • Patent number: D929553
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: August 31, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto Hattori, Hiroyuki Kamitani, Hiroto Higuchi, Takayuki Takashige