Patents Assigned to Mitsubishi Electric Corporation
  • Publication number: 20210219231
    Abstract: A cell controller, before sending a current beacon, calculates, for each device a maximum time offset supported by the device, taking into account the energy consumption due to go-to-sleep and wake-up phases until the moment when the device can use its timeslot. It ranks further a first list of devices intended to have a dedicated timeslot indicated in the current beacon, according to their maximum supported time offset. It picks the device at the head of the list and inserts it at the end. It calculates, for this device, a time offset toff,n between a moment when the current beacon is transmitted and the moment when the dedicated timeslot is allocated and determines whether the time offset toff,n of this device is greater than its maximum supported time offset. If yes, it moves the device upper in the first list, and determines a new time offset for this device.
    Type: Application
    Filed: December 26, 2018
    Publication date: July 15, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Romain ROLLET
  • Publication number: 20210218861
    Abstract: An image reading device includes (i) light guides extending in a main scanning direction and configured to emit light from a light source toward a reading target moving relatively in a sub-scanning direction, the light from the light source being projected into end surfaces of the light guides in the main scanning direction, (ii) an optical filter arranged between the light source and the end surfaces of the light guides and configured to block or attenuate light having a specific wavelength from the light from the light source, (iii) a lens body to focus reflected light reflected by the reading target onto a light receiver to convert the reflected light into an electrical signal, and (iv) a lens holder. The lens holder includes a first positioner for positioning the light guides and a second positioner for positioning the optical filter.
    Type: Application
    Filed: September 4, 2019
    Publication date: July 15, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroaki MATSUNAGA, Daisuke OHAMA, Yuki OKUHIGASHI, Masahiko TAKASHINA, Shigeru MATSUO, Masaki WAKISAKA
  • Publication number: 20210218301
    Abstract: A rotating electric machine including a rotor including a rotor core arranged coaxially with a stator core via an air gap formed between the stator core and the rotor core, and a plurality of permanent magnet groups each forming one magnetic pole, A flux barrier is formed between one set of permanent magnets adjacent to each other in the circumferential direction in each permanent magnet group forming one magnetic pole. A pair of ribs is formed of regions of the rotor core between the flux barrier and the one set of permanent magnets. A first slit is formed in a region of the rotor core on the air gap side in a radial direction of the each permanent magnet group, and an end portion of the first slit on the flux barrier side is positioned between extension lines of the pair of ribs.
    Type: Application
    Filed: February 4, 2019
    Publication date: July 15, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Junji KITAO, Kosho YAMANE, Tomohira TAKAHASHI, Yoshihiro MIYAMA
  • Publication number: 20210216609
    Abstract: There are included a normal model building unit that builds a normal model of another device on the basis of normal data of the other device; a degradation determination model building unit that builds a degradation determination model of the other device on the basis of the normal data and degradation data of the other device; a normal model rebuilding unit that builds a normal model of a target device on the basis of the normal model of the other device and normal data of the target device; a degradation determination model rebuilding unit that builds a degradation determination model of the target device on the basis of the degradation determination model of the other device and the normal model of the target device; and a degradation determining unit that determines degradation of the target device on the basis of operation data of the target device and the degradation determination model of the target device.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuichi WAKABAYASHI, Koji WAKIMOTO, Izumi OTSUKA, Chikato ISHITOBI, Takehisa HARAGUCHI
  • Publication number: 20210218473
    Abstract: Provided is an optical module comprising a plate-like metal stem and a semiconductor optical modulation element mounted to a dielectric substrate provided on one side of the metal stem, wherein the metal stem has a metal stem penetration section in which a metal lead pin is inserted coaxially in a penetration hole which is formed in the metal stem and a dielectric member is provided to fill the penetration hole around the outer circumference of the lead pin, and a signal for modulation is supplied to the semiconductor optical modulation element connected in parallel with a terminal matching circuit, from the other side of the metal stem via the metal stem penetration section, wherein the terminal matching circuit is configured by a series connecting body which is comprised of a first resistor and a parallel body which is comprised of a second resistor and a capacitor.
    Type: Application
    Filed: May 29, 2018
    Publication date: July 15, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tatsuki OTANI, Akio SHIRASAKI, Norio OKADA
  • Publication number: 20210218328
    Abstract: The object of the present disclosure is to suppress the conduction noise in a semiconductor device. A semiconductor device includes an inverter section being a full-bridge inverter, and a reflux section that short-circuits between output terminals U and V of the inverter section, in which impedances and are provided between each of freewheel diodes and of the upper arm and the output terminals U and V, and impedances and are provided between the freewheel diodes and of the lower arm and the input terminal N of in the inverter section, and the impedances to are greater than parasitic impedance of wiring assuming that IGBTs to and the output terminals U and V or the IGBTs and the input terminal N are connected only by the wiring.
    Type: Application
    Filed: October 21, 2020
    Publication date: July 15, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventor: Keisuke EGUCHI
  • Patent number: 11063484
    Abstract: The rotor of the electric motor includes a rotor magnet. The rotor magnet includes a yoke, and a resin magnet part formed of a resin material containing rare-earth magnetic powder, which is disposed outside the yoke. Multiple pedestals and multiple connecting portions are formed on an end surface of the yoke. The connecting portion joins together the adjacent pedestals. The connecting portions are disposed in a middle position of the end surface in the radial direction. The connecting portions each have a height less than the height of the pedestals. The present invention gains advantage in that the amount of rare-earth magnetic powder used in the rotor magnet can be reduced.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mineo Yamamoto, Tomoaki Oikawa, Hiroyuki Ishii, Hiroki Aso, Junichiro Oya, Yuto Urabe
  • Patent number: 11064625
    Abstract: An interface circuit includes: a connector connectable to a PC; a communication circuit capable of generating a transmission signal to another electronic device; a first region that is set between the connector and the communication circuit to allow an electrical isolation device to be mounted therein; wiring lines used to connect the communication circuit and the connector to each other through the first region; and wiring lines used to connect the electronic circuit and the connector to each other through a region other than the first region.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: July 13, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroki Shionoya, Sosuke Funakoshi
  • Patent number: 11063659
    Abstract: A control station includes: a location managing unit that calculates communicable times for combinations of a satellite station and an earth station that can perform communication with each other, based on a location of a satellite station and locations of earth stations serving as candidates to which the satellite station transmits the data; a data managing unit that holds information on a retention state of the data in the satellite having generated the data; and a transmission predicting unit that calculates data transmission completion times for one or more transmission paths from the satellite station to the earth station, based on the communicable times and the information on a retention state of the data, and generates control information for satellite stations and the earth station in a transmission path determined based on the data transmission completion times, to transmit the data in the determined transmission path.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: July 13, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shigenori Tani, Katsuyuki Motoyoshi
  • Patent number: 11064430
    Abstract: A communication system capable of preventing unnecessary switching of an energy saving cell between a normal operation state and an energy saving state. An energy saving cell (ES cell) is in a dormant state that is the energy saving state. In this case, when being notified of a wake-up request message from a communication terminal device (UE), the ES cell executes access restriction control to judge whether the UE can access its own cell. If judging that the UE can access its own cell, the ES cell switches on its own cell and shifts from the dormant state to an active state that is the normal operation state.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Noriyuki Fukui, Haruka Suzuki
  • Patent number: 11063116
    Abstract: A RESURF isolation structure surrounds an outer periphery of the high-side circuit region to isolate the high-side circuit region and the low-side circuit region from each other. The RESURF isolation structure includes a high-voltage isolation region, a high-voltage N-ch MOS, and a high-voltage P-ch MOS. The high-voltage isolation region, the high-voltage N-ch MOS, and the high-voltage P-ch MOS include a plurality of field plates (9,19a,19b,19c). An inner end of the field plate (19c) of the high-voltage P-ch MOS located closest to the low-side circuit region is positioned closer to the low-side circuit region than an inner end of the field plate (19b) of the high-voltage N-ch MOS located closest to the low-side circuit region.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventor: Manabu Yoshino
  • Patent number: 11062916
    Abstract: A heat sink (4) having a step in a bottom surface corner and a rectangular planar shape is disposed in an interior of a cavity (5) of a metal mold (1) and a first pin (2) is caused to project from a bottom surface of the cavity (5) to position the heat sink (4). A second pin (3) projecting from the bottom surface of the cavity (5) is disposed at the step of the positioned heat sink (4). After the heat sink (4) is positioned, the first pin (2) is lowered to the bottom surface of the cavity (5) and the heat sink (4) is sealed with the mold resin (10) with the second pin (3) being left projecting.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventor: Ken Sakamoto
  • Patent number: 11059133
    Abstract: A bonded structure, including a Zn-based brazing filler metal and a Cu-based bonding object bonded to each other, wherein the bonded structure includes a joint including a first alloy phase, a second alloy phase and a third alloy phase between the Zn-based brazing filler metal and the Cu-based bonding object, wherein the second alloy phase is formed at an interface between the first alloy phase and the third alloy phase, and wherein, in a cross section parallel to a bonding direction, a ratio of the second alloy phase at the interface between the first alloy phase and the third alloy phase is less than 80%.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: July 13, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koji Yamazaki, Tomoaki Kato
  • Patent number: 11062832
    Abstract: A cavity is formed in a surface of a dielectric component on the permanent magnet side. The cavity has a bottom surface extending in a direction along one main surface and a side surface extending in a thickness direction crossing the bottom surface. At least a part of the permanent magnet is disposed in the cavity. A surface of at least a part of the permanent magnet disposed in the cavity is fixed to both of the bottom surface and the side surface through an adhesive.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: July 13, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsuya Ueda, Hironobu Shibata, Yukinobu Tarui, Hidenori Ishibashi
  • Patent number: 11060779
    Abstract: An air-conditioning system includes a heat-source device that includes a compressor and a heat-source-side heat exchanger, a relay device that includes a pump and an intermediate heat exchanger, and a plurality of indoor units that each include a load-side heat exchanger. The air-conditioning system includes a refrigerant circuit through which refrigerant circulates and a heat medium circuit through which a heat medium circulates. The air-conditioning system includes a flow rate detection unit configured to detect flow rate information associated with a flow rate of a heat medium that flows through each of the plurality of indoor units and a controller configured to control the compressor and the pump. The controller controls operation of at least either the compressor or the pump on the basis of the flow rate information detected by the flow rate detection unit.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naofumi Takenaka, Kimitaka Kadowaki, Hiroki Washiyama, Yuji Motomura
  • Patent number: 11062925
    Abstract: By using a needle having a flat part on a top surface and concave portions at four corners of the top surface, the semiconductor chip pasted on the adhesive tape is pushed up, and the adhesive tape at four corners of the semiconductor chip are uniformly peeled off. Then, the pickup is performed.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masato Negishi, Kazuo Yoshida
  • Patent number: 11063025
    Abstract: Gates of a plurality of semiconductor switching elements are electrically connected to a common gate control pattern by gate wires. Sources of the plurality of semiconductor switching elements are electrically connected to a common source control pattern by source wires. The gate control pattern is disposed to interpose the source control pattern between the gate control pattern and each of the plurality of semiconductor switching elements that are connected in parallel and that operate in parallel. Hence, each of the gate wires becomes longer than each of the source wires, and has an inductance larger than the source wire. Accordingly, gate oscillation is reduced or suppressed in the plurality of semiconductor switching elements that are connected in parallel and that operate in parallel.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: July 13, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Junichi Nakashima, Shota Morisaki, Yoshiko Tamada, Yasushi Nakayama, Tetsu Negishi, Ryo Tsuda, Yukimasa Hayashida, Ryutaro Date
  • Patent number: 11061109
    Abstract: In a radar device (1), when a distance determined based on a range of fields of view required of the radar device (1) is defined as a distance d, transmission antennas (Tx) are arranged side by side with an antenna interval that is larger than the distance d in a first array direction, which is perpendicular to an emission direction of a transmission signal, reception antennas (Rx) are arranged side by side at antenna intervals that are larger than the distance d in a second array direction, which is parallel to the first array direction, and the transmission antennas (Tx) and the reception antennas (Rx) form virtual reception antennas (VR), which have an antenna arrangement including at least one part in which a virtual antenna interval is the distance d or less.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yuichi Goda
  • Patent number: 11060750
    Abstract: An equipment management system includes an equipment apparatus installed in a construction and configured to operate in accordance with details of manipulation, an equipment manipulation terminal including an equipment communication unit and configured to manipulate the equipment apparatus, and an external manipulation terminal including an external communication unit configured to communicate with the equipment manipulation terminal. The external manipulation terminal is configured to manipulate the equipment apparatus indirectly. When the equipment apparatus is manipulated by the external manipulation terminal, the external manipulation terminal transmits details of manipulation to the equipment manipulation terminal, and the equipment manipulation terminal manipulates the equipment apparatus in accordance with the details of manipulation received from the external manipulation terminal.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventor: Minoru Kanamaru
  • Patent number: D924909
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: July 13, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Osamu Nasu, Ryuuichi Katou