Patents Assigned to Mitsubishi Electrics Corporation
  • Publication number: 20240150152
    Abstract: A group control device according to the present disclosure includes a registration unit, a calculation unit, and a selection unit. The registration unit makes call registration for a boarding floor, a destination floor, and an allocated car when a user makes a hall destination call by a hall destination calling device. The calculation unit calculates an in-car stay time of the user for the hall destination call. The selection unit selects a past hall destination call as an alternative candidate for call registration for a new hall destination call, in a case where the past hall destination call which has already been registered by the registration unit, whose allocated car is different from a car allocated to the new hall destination call, and whose in-car stay time is shorter than the in-car stay time calculated by the calculation unit.
    Type: Application
    Filed: March 24, 2021
    Publication date: May 9, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventor: Kazunori SAKO
  • Publication number: 20240149925
    Abstract: Each of the first outdoor heat exchanger and the second outdoor heat exchanger includes a body including a stacked structure in which refrigerant pipes and fins are alternately stacked in a direction perpendicular to a thickness direction in which airflow passes through the first outdoor heat exchanger or the second outdoor heat exchanger. Each refrigerant pipe internally defines a plurality of refrigerant flow paths arranged in the thickness direction. A first header pipe connects the refrigerant flow paths in each refrigerant pipe to one another at a first end of the body in a length direction of the refrigerant pipes. A second header pipe connects the refrigerant flow paths in each refrigerant pipe to one another at a second end of the body in the length direction of the refrigerant pipes.
    Type: Application
    Filed: May 13, 2021
    Publication date: May 9, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventor: Wahei SHINGU
  • Patent number: 11976839
    Abstract: A first air-supply port and a first air-exhaust port each disposed in a first zone and used to ventilate the first zone are provided. Further, a second air-supply port and a second air-exhaust port each disposed in a second zone and used to ventilate the second zone are provided, and the second zone is adjacent to the first zone. The first air-supply port, the first air-exhaust port, the second air-supply port, and the second air-exhaust port are disposed on one plane. The first air-supply port, the first air-exhaust port, the second air-supply port, and the second air-exhaust port are disposed in order of the first air-exhaust port, the first air-supply port, the second air-supply port, and the second air-exhaust port in one direction, or in order of the first air-supply port, the first air-exhaust port, the second air-exhaust port, and the second air-supply port in one direction.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mamoru Hamada, Shogo Tamaki, So Nomoto, Masato Yosomiya
  • Patent number: 11978812
    Abstract: A waveguide photodetector includes a first contact layer of a first conductivity type, a waveguide layer, and a second contact layer of a second conductivity type that are sequentially formed on the semiconductor substrate. The waveguide layer includes a first cladding layer of the first conductivity type disposed on a side of the first contact layer, a second cladding layer of the second conductivity type disposed on a side of the second contact layer, and the core layer disposed between the first cladding layer and the second cladding layer. The core layer includes a light absorption layer and an impurity-doped light absorption layer that has a higher concentration of a p-type impurity than that of the light absorption layer and is disposed on a side of a light incident face.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventor: Ryota Takemura
  • Patent number: 11977158
    Abstract: A laser radar device performs control to make a focus distance of transmission light equal to a measurement distance by switching a plurality of laser light sources that emit beams of oscillation light having wavelengths different from each other to switch emission directions of the transmission light while maintaining the focus position of optical antennas, and changing the wavelength of the beams of oscillation light according to the measurement distance.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshiyuki Ando, Jiro Suzuki, Eisuke Haraguchi
  • Patent number: 11979080
    Abstract: An electric motor includes a shaft that is rotatably supported for rotation around a rotation axis, a rotor that is located outwardly of the shaft in a radial direction and rotates integrally with the shaft, a stator that faces the rotor in the radial direction, and a tubular frame that has an inner peripheral surface to which the stator is fixed. The electric motor further includes a groove included in (i) the inner peripheral surface of the frame or (ii) an outer peripheral surface of the stator, and an insulating member disposed in the groove.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: May 7, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naoki Hayami, Tetsuya Sakurada
  • Patent number: 11979261
    Abstract: A transmitting apparatus includes an analog transmitting unit that performs analog processing on a multiplex signal in which two or more signals are multiplexed and generates a transmission signal, and a signal multiplexing and learning unit that multiplexes the two or more signals with a neural network whose parameters have been adjusted based on the analog characteristics of the analog transmitting unit and constraints on the multiplex signal and generates the multiplex signal.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Manabu Takagi, Yasunori Noda
  • Patent number: 11979335
    Abstract: A network controller is configured to perform, to a new slice request, resource allocation from a resource of unallocated resource information managed by a resource information management unit, and to reallocate the resource to an existing slice request so that an unallocated resource increases based on unallocated resource information managed by the resource information management unit.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: May 7, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi Suehiro, Yukio Hirano, Kenichi Nakura, Akiko Iwasaki, Hiromu Sato
  • Patent number: 11977642
    Abstract: An evaluation item generation unit (107) acquires a plurality of candidates for security evaluation items to be adopted to a plurality of apparatuses included in an information system. Further, the evaluation item generation unit (107) analyzes at least one of: whether or not each apparatus of the plurality of apparatuses has a communication path with an outside communication apparatus being an apparatus which is in the information system and performs communication with the outside of the information system; and whether or not there exists in each apparatus of the plurality of apparatuses, a security evaluation item an adoption of which is to be exempted due to an adoption of which to another apparatus in the information system, and selects for each apparatus of the plurality of apparatuses, a security evaluation item to be adopted, from the plurality of candidates for the security evaluation items based on an analysis result.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: May 7, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Mami Kawaguchi, Daisuke Suzuki
  • Patent number: 11977373
    Abstract: An abnormality diagnosis method for diagnosing an abnormality in operational state of a diagnosis subject includes creating a unit space from normal operation data of the diagnosis subject, the unit space serving as a reference for determining the operational state of the diagnosis subject, acquiring data having state quantities of a plurality of evaluation items from the diagnosis subject, calculating a Mahalanobis distance of the data acquired, using the unit space created, and determining an abnormality in the operational state of the diagnosis subject based on the Mahalanobis distance calculated. The creating a unit space includes creating a plurality of unit spaces having mutually different data lengths The calculating a Mahalanobis distance includes calculating a plurality of Mahalanobis distances using the plurality of unit spaces created. The determining an abnormality includes determining an abnormality based on the plurality of Mahalanobis distances calculated.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: May 7, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Misa Nozuki, Shinsuke Miki
  • Patent number: 11979117
    Abstract: A high frequency semiconductor amplifier according to the present disclosure includes: a transistor formed on a semiconductor substrate and including a gate electrode, a source electrode, and a drain electrode; a matching circuit for input-side fundamental wave matching of the transistor; a first inductor formed on the semiconductor substrate and having one end connected to the gate electrode of the transistor and the other end connected to the matching circuit; a capacitor formed on the semiconductor substrate and having one end being short-circuited; and a second inductor formed on the semiconductor substrate and having one end connected to the gate electrode of the transistor and the other end connected to the other end of the capacitor, wherein the second inductor resonates in series with the capacitor at second harmonic frequency, has a mutual inductance of subtractive polarity with the first inductor, and the first inductor and the second inductor form mutual inductive circuits for input-side second har
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yoshinobu Sasaki
  • Patent number: 11979182
    Abstract: A noise elimination device includes a noise elimination unit to generate a noise-eliminated spectrum by performing noise elimination on the basis of symmetry of noise superimposed on a reception signal spectrum.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Retsu Sugawara, Jun Takahashi, Yuji Matsuda
  • Patent number: 11977157
    Abstract: The optical distance measurement device is configured to include an optical interference unit for separating the reflected light into a reflected light of a first polarized wave and a reflected light of a second polarized wave, extracting first and second components orthogonal to each other from an interference light of the reflected light of the first polarized wave and the reference light, and extracting third and fourth components orthogonal to each other from an interference light of the reflected light of the second polarized wave and the reference light, and a polarization rotation unit for acquiring one or more components of horizontal and vertical components of a polarized wave by rotating a polarization angle of a first complex signal having the first and second components and a polarization angle of a second complex signal having the third and fourth components, so that a distance calculation unit calculates, on the basis of the components acquired by the polarization rotation unit, a difference bet
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kiyoshi Onohara, Hiroki Goto
  • Patent number: 11976824
    Abstract: A centrifugal fan includes: an impeller having a back plate; and a scroll casing including a peripheral wall having a volute shape, a first side wall facing a virtual extension of the back plate and an inner end portion of the volute shape of the scroll casing, an expanded portion, and a first edge end portion being an end of a first edge defining the discharge port, of the first side wall, are arranged in a named order in the rotation direction, the first edge end portion being farther from the rotation shaft than an other end of the first edge and distance L1?distance LM>distance LS is satisfied where LS is a distance between the first side wall at the inner end portion of the volute shape and the virtual extension of the back plate, LM is a distance between the first side wall at the expanded portion and the virtual extension of the back plate, the expanded portion being a portion at which the distance between the first side wall and the virtual extension of the back plate is larger than LS, and L1 is a
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroyasu Hayashi, Takuya Teramoto, Ryo Horie, Takahiro Yamatani, Hiroshi Tsutsumi
  • Patent number: 11975613
    Abstract: A variable-gauge train control apparatus for a variable-gauge train having a gauge variable in a gauge conversion section includes: a plurality of main motors that transmits driving force to axles and wheels; a plurality of inverters that outputs voltage to at least one of the main motors; and voltage control units that control the individual output voltages of the plurality of inverters. Each of the voltage control units corresponds to one of the inverters and, when at least one of the axles to be subjected to the driving force controlled by the corresponding one inverter is within the gauge conversion section, controls the speed of the associated main motors by using, as a speed command value, a train speed converted into a rotational frequency.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: May 7, 2024
    Assignees: MITSUBISHI ELECTRIC CORPORATION, KYUSHU RAILWAY COMPANY
    Inventors: Kohei Fujitani, Shinsuke Kadoi, Tsuyoshi Morimitsu, Yuichi Mimura, Soichiro Watanabe
  • Patent number: 11976838
    Abstract: An air-conditioning apparatus includes a casing provided with an air inlet through which air is sucked and an air outlet through which the air is blown out, heat exchangers being connected in parallel, and causing heat exchange to be performed between the air sucked from the air inlet and refrigerant, fans each sending the air to a corresponding one of the heat exchangers, and a controller. The controller controls the fans so that they have different rotational speeds.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ryuichi Nagata, Masanori Sato, Yusuke Tashiro
  • Patent number: 11975616
    Abstract: An electric vehicle drive system includes: a reactor; and electric vehicle control apparatuses that control electric motors for driving an electric vehicle. Each of the electric vehicle control apparatuses includes: a capacitor that defines a filter circuit together with the reactor; an inverter circuit that supplies power to the corresponding one of the electric motors; and a control unit that controls the inverter circuit. The inverter circuit is housed in a housing together with the capacitor and the control unit. The reactor is connectable to each of the housings through an electric wire having any desired length. At least one of the electric wires connecting the reactor and the housings has a length of 2 meters or more.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: May 7, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidetoshi Kitanaka, Tetsuo Sugahara, Hirokazu Takabayashi
  • Patent number: D1026005
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hitoshi Yoshizawa, Tsutomu Matsubara, Masato Hirai, Takashi Yamauchi
  • Patent number: D1026022
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hitoshi Yoshizawa, Masato Hirai, Tsutomu Matsubara
  • Patent number: D1026025
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: May 7, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Misato Miura, Hitoshi Yoshizawa, Masato Hirai, Mai Matsumoto