Patents Assigned to Mitsubishi Electric Corporation
  • Patent number: 11962192
    Abstract: An electric motor includes: a permanent magnet; a rotor including a first rotor core having a first electrical steel sheet and a second rotor core having a second electrical steel sheet; and a stator including a stator core. The first electrical steel sheet is located outside the stator core. A relationship among a minimum width BL1 of a first left bridge, a thickness tL1 of the first left bridge, a minimum width BR1 of a first right bridge, a thickness tR1 of the first right bridge, a minimum width BL2 of a second left bridge, a thickness tL2 of the second left bridge, a minimum width BR2 of a second right bridge, and a thickness tR2 of the second right bridge satisfies (BL1×tL1+BR1×tR1)>(BL2×tL2+BR2×tR2).
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Emi Tsukamoto, Masahiro Nigo
  • Patent number: 11959769
    Abstract: An information processing device includes processing circuitry configured to acquire feature measurement information indicating locations of features including a road having a boundary and trajectory information indicating a trajectory along the road. Additionally, the processing circuitry is further configured to generate candidate location information indicating locations of candidate elements for the boundary, based on the acquired feature measurement information. Further, the processing circuitry is configured to select candidate elements from among the candidate elements indicated by the generated candidate location information, based on the acquired trajectory information. Finally, the processing circuitry is configured to generate boundary location information indicating determined locations of the boundary, using the selected candidate elements.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masashi Watanabe, Yukako Takahashi, Takuma Kadoya
  • Patent number: 11958128
    Abstract: A laser apparatus includes a laser oscillator; an acousto-optic modulation unit including a first acousto-optic modulator that diffracts a laser beam from the laser oscillator when a first ultrasonic wave is applied and a second acousto-optic modulator that diffracts a higher order beam output from the first acousto-optic modulator when a second ultrasonic wave is applied; and an amplifier that amplifies the laser beam from the acousto-optic modulation unit, a propagation direction of the first ultrasonic wave relative to a diffracted direction of the higher order beam emitted from the first acousto-optic modulator and a propagation direction of the second ultrasonic wave relative to a diffracted direction of a higher order beam emitted from the second acousto-optic modulator being different.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koji Funaoka, Tatsuya Yamamoto, Yuzuru Tadokoro, Masayuki Saiki, Hiromasa Mihara, Yoshiharu Kurosaki
  • Patent number: 11959659
    Abstract: An outdoor unit for an air-conditioning apparatus, having a compressor, a top cover configured to cover an upper surface of the compressor, and a side cover configured to cover a side of the compressor and a side of the top cover, the side cover including a rectangular cutout portion formed in a part of an upper end of the side cover. The outdoor unit has a non-water-absorbent draining element disposed across from a central portion of the top cover to a bottom portion of the cutout portion, and tilts down from the central portion of the top cover toward the bottom portion of the cutout portion.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kento Oku, Keiichi Tomita, Tetsuya Masuda
  • Patent number: 11959675
    Abstract: An air-conditioning apparatus includes an indoor unit and an outdoor unit connected to each other via a refrigerant pipe through which refrigerant flows. The air-conditioning apparatus includes a refrigerant sensor that detects leakage of the refrigerant in the indoor unit, a notification unit that provides a notification of occurrence of leakage of the refrigerant, a transmitter that communicates with an external terminal via a network, and a controller that controls the notification unit and the transmitter. The notification unit includes a display and a speaker disposed on a surface of a casing of the indoor unit, and the external terminal. When leakage of the refrigerant is detected by the refrigerant sensor, the controller controls the notification unit and the transmitter to provide a notification of occurrence of leakage of the refrigerant.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuki Watanabe, Masahiko Takagi
  • Patent number: 11959672
    Abstract: An air-conditioning apparatus includes an outdoor heat exchanger. The outdoor heat exchanger includes a first heat exchanger and a second heat exchanger. A controller performs a heating operation and a heating-defrosting operation, in which one of the first heat exchanger and the second heat exchanger functions as an evaporator, an other one the first heat exchanger and the second heat exchanger functions as a condenser. When a temperature of the indoor heat exchanger by a temperature detection unit is treated as a first temperature, and a temperature of the indoor heat exchanger by the temperature detection unit is treated as a second temperature, the controller reduces a rotation speed of an indoor fan in a case where the second temperature is lower than the first temperature and where a difference between the first temperature and the second temperature is greater than or equal to a first setting value.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masakazu Sato, Masakazu Kondo
  • Patent number: 11959649
    Abstract: An air-conditioning apparatus includes a compressor and an outdoor heat exchanger that operates as an evaporator. A first heat exchange unit of the outdoor heat exchanger includes: first heat transfer tubes extending in an upward/downward direction, and arranged apart from each other in a lateral direction; a first junction pipe extending in the lateral direction, and connected to the lower ends of the first heat transfer tubes; an outflow pipe connected to the first junction pipe at or below a center position of the first junction pipe in the upward/downward direction; second heat transfer tubes extending in the upward/downward direction, and arranged apart from each other in the lateral direction; a first distribution pipe extending in the lateral direction, and connected to the lower ends of the second heat transfer tubes, and a first connection part connecting upper ends of the first heat transfer tubes and upper ends of the second heat transfer tubes.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Atsushi Kibe, Yoji Onaka
  • Patent number: 11961661
    Abstract: A discharge pipe is connected to a refrigerant container from outside of a vacuum container, and discharges a vaporized refrigerant. A pair of external leads are electrically connected respectively to opposite ends of a superconducting coil from a position outside of the vacuum container, so as to cause a current to flow through the superconducting coil. A protection circuit is electrically connected to the superconducting coil, and consumes energy stored in the superconducting coil during quenching. The protection circuit is in contact with the discharge pipe outside of the vacuum container.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Dai Yamashiro
  • Patent number: 11962081
    Abstract: An antenna and a radome that covers the antenna are provided, the radome includes a first part, a second part, and a third part each with a surface which is flush to each other, the first part has a beam transmission characteristic corresponding to a scanning angle of 0 degrees of a beam emitted by the antenna with an emission direction directed toward the first part, the second part has a beam transmission characteristic corresponding to a first scanning angle of a beam emitted by the antenna with an emission direction directed toward the second part, and the third part has a beam transmission characteristic corresponding to a second scanning angle of a beam emitted by the antenna with an emission direction directed toward the third part.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiromasa Nakajima, Shinichi Yamamoto, Michio Takikawa
  • Patent number: 11961765
    Abstract: The present invention relates to a method for manufacturing a semiconductor substrate, including: (a) preparing an epitaxial substrate having a nitride semiconductor layer formed on a first main surface of a growth substrate and preparing a first support substrate, forming a resin adhesive layer between the first main surface of the growth substrate and a first main surface of the first support substrate, and bonding the epitaxial substrate to the first support substrate; (b) thinning a second main surface of the growth substrate; (c) forming a first protective thin film layer on the thinned growth substrate; (d) forming a second protective thin film layer on the first support substrate; (e) removing the thinned growth substrate; (f) bonding a second support substrate onto the nitride semiconductor layer; and (g) removing the first support substrate and the resin adhesive layer.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shuichi Hiza, Kunihiko Nishimura, Masahiro Fujikawa, Yuki Takiguchi, Eiji Yagyu
  • Patent number: 11962142
    Abstract: The present disclosure includes: a power generator; and a power line through which power generated by the power generator is transmitted to a load. The power line between the power generator and the load is provided with: a current limitation device configured to, when detecting occurrence of a fault current, limit the fault current; and a current interruption device configured to interrupt current heading for the load, in conjunction with the limitation of the fault current performed by the current limitation device.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Katsuhiko Horinouchi, Katsuki Hotta, Tsuguhiro Takuno
  • Patent number: 11961784
    Abstract: A first heat sink has a first inner surface and a first outer surface, and has a first through hole. A second heat sink has a second inner surface disposed with a clearance left from the first inner surface of the first heat sink, and a second outer surface opposite to the second inner surface, and has a second through hole. A semiconductor element is disposed within a clearance between the first inner surface of the first heat sink and the second inner surface of the second heat sink. A sealing member seals the semiconductor element within the clearance between the first inner surface and the second inner surface. A first hollow tube is made of metal, and connects the first through hole and the second through hole.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Arata Iizuka, Korehide Okamoto, Ryoya Shirahama
  • Patent number: 11958544
    Abstract: A control device for an electric power steering device includes an inverter converting direct current voltage into alternating current voltage, and apply to a synchronous motor; and a controller for converting three-phase current flowing in the synchronous motor into d-axis and q-axis currents, performing proportional integral control for a deviation between q-axis current command and the q-axis current so that the q-axis current follows the q-axis current command, to calculate q-axis voltage command, performing proportional integral control to calculate d-axis voltage command, converting the d-axis and q-axis voltage commands into three-phase voltage command, and controlling the inverter based on the three-phase voltage command. A q-axis proportional gain used in the proportional integral control for the q-axis current is obtained using a time constant of a q-axis current control system, a q-axis or d-axis inductance, and a constant greater than zero and less than one.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tatsuya Mori, Yu Hirotani
  • Patent number: 11958494
    Abstract: An acquisition unit acquires pieces of information including information related to a vehicle, information related to the environment inside and outside the vehicle, and information related to a driver on board the vehicle. A determination unit determines priorities of the pieces of information acquired by the acquisition unit on the basis of a service or the like used by the driver among services or the likes provided using information accumulated in a server device. A selection unit selects a piece of information to be transmitted to the server device from among the pieces of information acquired by the acquisition unit on the basis of the priorities determined by the determination unit. A communication unit transmits the piece of information selected by the selection unit to the server device.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masanobu Osawa, Daisuke Fushiki, Takuji Morimoto, Takumi Sato, Hiroyoshi Shibata, Tetsuro Nishioka, Mizuki Higuchi, Shogo Okamoto
  • Patent number: 11959677
    Abstract: A refrigeration apparatus includes: a refrigerant circuit through which refrigerant circulates; a controller to execute a plurality of refrigerant shortage sensing functions of sensing a shortage of an amount of the refrigerant; and an input device through which an operation mode to be set is input into the controller. The operation mode includes: a first mode in which energy-saving performance is emphasized; and a second mode in which the refrigeration apparatus is permitted to operate in a range in which reliability is ensured. In accordance with the operation mode set through the input device, the controller determines which one of sensing results obtained by the refrigerant shortage sensing functions is enabled and which one of sensing results obtained by the refrigerant shortage sensing functions is disabled. When a sensing result determined to be enabled shows a refrigerant shortage, the controller gives a notification about the refrigerant shortage.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takanori Yashiro, Hiroshi Sata, Yusuke Arii
  • Patent number: 11958635
    Abstract: A dual solution candidate searcher receives an input of information about a constraint coefficient matrix and a cost vector, determines a dual problem of a linear programming problem being a primal problem and all active sets representing combinations of active formulas in constraints of the dual problem, finds, for each of the active sets, a feasible dual solution candidate meeting constraints, and stores the dual solution candidate into a storage in a manner associated with a corresponding one of the active sets. An optimal solution calculation device receives an input of a constraint vector as, selects an optimal one of the active sets as an optimal active set based on an inner product of the constraint vector and the dual solution candidate stored in the storage, and finds and outputs a basic feasible solution corresponding to the selected active set as an optimal solution.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuta Asano, Takehiro Nishiyama
  • Patent number: 11959650
    Abstract: An outdoor unit of an air-conditioning apparatus includes a compressor, a heat exchanger, and a controller. The controller includes a compressor driving circuit configured to drive the compressor, a harmonic suppressing unit configured to suppress harmonics in the compressor driving circuit, and a housing containing the compressor driving circuit and the harmonic suppressing unit. The housing has a first section having ventilation holes that allow communication between the outside and the inside, and a second section constituting a frame outside the first section. The first section contains the harmonic suppressing unit and a fan configured to blow air from inside the first section to the outside through the ventilation holes. The second section contains the compressor driving circuit.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tomohiro Mori, Keizo Kamada
  • Patent number: 11962191
    Abstract: A rotor includes a rotor core, a first permanent magnet that is W1 mm long in a longitudinal direction, and a second permanent magnet that is W1 mm long in a longitudinal direction. The rotor core includes a first magnet insertion hole, a second magnet insertion hole, and a center lib. The first magnet insertion hole includes a first outside opening part having a radius of curvature of R1 mm, and a first inside opening part having a radius of curvature of R2 mm. The second magnet insertion hole includes a second outside opening part having a radius of curvature of R1 mm, and a second inside opening part having a radius of curvature of R2 mm. The rotor satisfies R1>R2 and 0<(R1+R2)/W1<0.082.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tomoki Masuko, Atsushi Matsuoka
  • Patent number: 11960003
    Abstract: A control device includes: an object detector to output a signal for causing a transmitter to transmit an object detection ultrasonic wave, obtain an output signal from a receiver, and detect an object; an abnormality detector to perform, as an abnormality detection process, outputting a signal for causing the transmitter to transmit an abnormality detection ultrasonic wave whose transmission time is longer than that of the object detection ultrasonic wave, obtaining, from the receiver, an output signal in a period in which the abnormality detection ultrasonic wave is to be received as a direct wave, and detecting an abnormality in the transmitter or receiver when no signal of the direct wave is included; and a determiner to obtain a speed of a vehicle including the transmitter and receiver, and when the speed is not greater than a threshold, cause the abnormality detector to start the abnormality detection process.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Kentaro Ishikawa
  • Patent number: 11960023
    Abstract: A radar device is configured in such a manner that each of transmission radars uses, as the amount of phase modulation, a value determined from either one of a positive integer value that is less than or equal to a result of division obtained by dividing the number of hits of a transmission RF signal by the number of the transmission radars and a value of 0; a hit number h of the transmission RF signal; and the number of hits.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuaki Maniwa, Satoshi Kageme, Teruyuki Hara