Patents Assigned to Mitsubishi Electrics Corporation
  • Patent number: 11391517
    Abstract: A distributor includes a first branch flow path for dividing a first flow path into a plurality of second flow paths, and includes a first communication flow path communicating with the first flow path, a second communication flow path communicating with each of the second flow paths, and a bent portion connecting the first and second communication flow paths. The bent portion includes an inner peripheral wall portion including an inner face having a first radius of curvature, and an outer peripheral wall portion including an inner face having a second radius of curvature larger than the first radius of curvature. The second communication flow path includes an inner wall portion extending from the inner peripheral wall portion of the bent portion, an outer wall portion extending from the outer peripheral wall portion of the bent portion, a base portion and a tip portion.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: July 19, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinya Higashiiue, Shigeyoshi Matsui, Takehiro Hayashi
  • Patent number: 11394258
    Abstract: An electric motor includes a rotor including a first rotor end and a second rotor end, and a stator including a first stator end and a second stator end. The first rotor end is located apart from the first stator end toward the first side. The second rotor end is located apart from the second stator end toward the first side. The relationship between the distances D1 and D2 satisfies D1>D2?0, where D1 is a distance from a permanent magnet to a first end plate, and D2 is a distance from the permanent magnet to a second end plate. The thickness of each of a plurality of electrical steel sheets is not less than 0.1 mm and not more than 0.25 mm.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: July 19, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventor: Koji Yabe
  • Patent number: 11389898
    Abstract: A laser processing apparatus includes a holder configured to hold a workpiece, a head, a first nozzle, and a driver. The head is configured to irradiate a first portion of a main surface of the workpiece with a laser beam. The first nozzle is configured to supply a first liquid to the first portion. The driver is configured to drive the holder in such a manner that the workpiece can revolve around the optical axis of the laser beam at the first portion. Accordingly, the workpiece can be processed, and debris of the workpiece can be prevented from adhering to the main surface of the workpiece.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 19, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Keigo Fukunaga, Tamio Matsumura
  • Patent number: 11390305
    Abstract: Locking members disposed on a casing of an underfloor device for railway vehicles engage hanging tools disposed on the vehicle, whereby the underfloor device for railway vehicles is attached to the vehicle. The locking member is a hollow locking member that includes a locking part to contact and engage a vertically upper face of part of the hanging tool, a mount part attached to the casing, and a connection part connecting the locking part and the mount part. The locking part is disposed at a position spaced apart from the casing horizontally and vertically upward. The locking part contacts and engages the vertically upper face of part of the hanging tool inserted into a space surrounded by the locking part, the mount part, and the connection part.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: July 19, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomoki Watanabe, Shunsuke Okada, Takayuki Kawaguchi
  • Patent number: 11394605
    Abstract: An instruction terminal includes a storage that stores correspondence information that associates, for each of communication devices, identification information of the communication device and candidate parameters for communication with the communication device, a first instructor that issues an instruction to acquire the identification information of a network device that is a communication device of the communication devices and is connected to a communication apparatus via a network, a second instructor that issues an instruction to specify, from among candidate parameters that are included in the correspondence information and correspond to the identification information, a device parameter for the communication with the network device, and a receiver that receives specification information indicating the specified device parameter.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: July 19, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Nobukazu Ishii
  • Patent number: 11393185
    Abstract: A monitoring device conducts a process of obtaining pieces of distance data representing distances to a plurality of physical objects present in a monitoring region, from measurement results of the monitoring region, and using the distance data as current distance data; obtaining past distance data from the measurement results, and converting the past distance data into comparison distance data; calculating difference values between the current distance data and the comparison distance data, and extracting changed regions whose difference values are greater than or equal to a threshold; creating an image obtained by transforming a frontal viewpoint image such that a viewpoint of the measurement of the monitoring region is moved, the frontal viewpoint image being based on the current distance data and the changed regions; and identifying the plurality of physical objects present in the monitoring region, on the basis of the frontal viewpoint image and the coordinate transformed image.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 19, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kenichi Shimbo, Kyosuke Isono
  • Patent number: 11389895
    Abstract: A laser device includes: a plurality of laser diodes that emit laser beams having different wavelengths; a partial reflection mirror that resonates the plurality of laser beams emitted by the plurality of laser diodes; and a wavelength dispersion element that causes the plurality of laser beams incident from the plurality of laser diodes in different orientations of optical axes of the laser beams to travel to the mirror with the optical axes aligned. Each of the plurality of laser diodes is integrally formed with an adjustment component that is rotatable around an emission end of the laser diode.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: July 19, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomohiro Kyoto, Daisuke Morita, Hiroyuki Takeuchi, Yumi Genda
  • Patent number: 11391521
    Abstract: A heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus are provided where heat exchange performance is improved, and drainage properties and resistance against frost formation are improved. A flat tube and a plurality of fins that are each a plate having a plate surface extending in a longitudinal direction and in a width direction orthogonal to the longitudinal direction are provided. The plate surface intersects a pipe axis of the flat tube, and the plurality of fins are arranged at an interval from one another. The plurality of fins each have a first spacer formed in the plate and maintaining the interval. The flat tube has a longitudinal axis of a section perpendicular to the pipe axis, and the longitudinal axis is inclined to the width direction by an inclination angle ?. The first spacer has a standing surface extending in a direction intersecting the plate surface.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: July 19, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Akira Yatsuyanagi, Tsuyoshi Maeda, Tomohiko Takahashi, Yoshihide Asai, Hidetomo Nakagawa
  • Publication number: 20220224430
    Abstract: A relay device includes a plurality of physical ports (111-1 to 111-N) that receive frames, and a layer-2 protocol processing unit (113) that transfers the frame received by one of the physical ports (111-1 to 111-N) from at least one of the physical ports (111-1 to 111-N). The layer-2 protocol processing unit (113) has a filtering function for blocking frames other than a clock-time synchronization frame during transfer involving a port selected from the plurality of physical ports (111-1 to 111-N) as a port that relays only the clock-time synchronization frame used for synchronizing clock time.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Toshiyuki NAKAYASU, Sachiko TANIGUCHI, Ryusuke KAWATE
  • Publication number: 20220220869
    Abstract: In a valve timing adjustment device, a first arm projection portion that is caught by a terminal hook portion of a spiral spring and urged toward a lock phase side by the spiral spring is installed on a face opposite to the front surface of a plate in a first arm in a case where a rotational phase of a second rotating body with respect to a first rotating body is on a first rotational phase side, and a second arm projection portion that abuts on an outermost peripheral portion of the spiral spring is installed on a face opposite to the front surface of the plate in a second arm in a case where the rotational phase is on the first rotational phase side.
    Type: Application
    Filed: June 21, 2019
    Publication date: July 14, 2022
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takuya CHIKAYAMA, Masayuki YOKOYAMA
  • Publication number: 20220224507
    Abstract: In a case where signals branched from a single reference signal source are transmitted via a plurality of cables, a phase synchronization circuit can be used to stabilize a phase of a signal to be outputted from each cable. However, the phases of signal to be outputted from each cable is affected by combination of a length of each cable and an amount of delay caused by feedback control, so that phases of synchronization signals to be outputted from a plurality of transmission paths are not always the same as each other. In the present invention, since a frequency multiplier that multiplies a frequency of a signal outputted from each transmission path by an even number is provided for a phase synchronization circuit, the phases of the synchronization signals to be outputted from the transmission paths are aligned even when signals are branched from one reference signal.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroyuki MIZUTANI, Sho IKEDA, Kae MORITA
  • Publication number: 20220224365
    Abstract: A signal analysis device includes: a plurality of time-frequency conversion units that are each provided corresponding to one of a plurality of sampling sequences and convert a corresponding sampling sequence, the plurality of sampling sequences having been subjected to sampling performed at a sampling rate lower than a Nyquist rate from a plurality of signal systems generated by branching a signal of interest, and having received addition of delay times different from each other; signal processing units that collectively perform a phase compensation process corresponding to a sub-Nyquist zone of the sampling sequence output by a corresponding time-frequency conversion unit and a process of canceling phase rotation caused by a delay time difference between the plurality of sampling sequences; and a frequency estimation unit that estimates a frequency of the signal of interest by determining from which sub-Nyquist zone the signal of interest has been folded.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yuji AKIYAMA
  • Publication number: 20220223546
    Abstract: The present invention provides a semiconductor device and a power converter having improved moisture resistance reliability. The semiconductor device of the present invention includes: a metal base substrate which includes a first insulating layer provided on a metal base, a support conductor provided on the first insulating layer, and a second insulating layer provided on a side surface of the support conductor; a semiconductor element bonded to the support conductor; a case provided outside the second insulating layer; an external terminal attached to the case; and a sealing member filled in a region surrounded by the support conductor, the second insulating layer and the case.
    Type: Application
    Filed: June 19, 2019
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yusuke KAJI, Aya FUJITA
  • Publication number: 20220221496
    Abstract: A data collection system includes: a monitoring device that sequentially instructs two or more in-vehicle devices installed in a railroad car to start operating and to stop operating; and an auxiliary power supply that sequentially measures an output voltage and an output current while the in-vehicle devices operate in turns in accordance with an instruction from the monitoring device, and records measurement results.
    Type: Application
    Filed: August 8, 2019
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tomohisa MARUYAMA, Toshiaki TAKEOKA
  • Publication number: 20220222187
    Abstract: In a controller (10), a CPU device #1 has a first authority to manage a peripheral device #1, and is a management device for the peripheral device #1. Each of a CPU device #2 and a CPU device #3 is a general device that has a second authority, which is lower than the first authority, for the peripheral device #1. Upon failing to read data from the peripheral device #1, the general device executes a diagnosis on the peripheral device #1 based on the second authority. The diagnosis by the general device causes the CPU device #1, which is the management device for the peripheral device #1, to receive an error notification indicating the error in the peripheral device #1. Upon receiving the error notification, the CPU device #1, which is the management device, handles the error in the peripheral device #1 based on the first authority.
    Type: Application
    Filed: April 4, 2022
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Naoki ITO, Yohei TSUKAMOTO
  • Publication number: 20220224595
    Abstract: An OLT includes a storage unit that stores management information indicating that a first address has been assigned to a client device that connects to an ONU as an operational system and an ONU as a standby system, a detection unit that detects occurrence of a failure to the ONU, a communication control unit that, connects to the ONU when the occurrence of the failure to the first slave station device is detected and controls communication performed by the client device so that the client device connects to the Internet via the ONU and the OLT, and a monitoring unit that monitors unauthorized use of the first address based on the management information both when the client device connects to the Internet via the ONU and the OLT and when the client device connects to the Internet via the ONU and the OLT.
    Type: Application
    Filed: May 23, 2019
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Makiko ISHIDA, Hideki SUEOKA
  • Publication number: 20220224266
    Abstract: To provide a controller for AC rotary electric machine and an electric power steering apparatus which can superimposes a cancellation current for canceling the torque ripple component on the winding current in feedforward manner and cancel the torque ripple component. A controller for AC rotary electric machine calculates an oscillation voltage command value of q-axis which has the same frequency as the torque ripple component; calculates a reverse phase of the torque ripple component based on the current information and the magnetic pole position; calculates a correction phase corresponding to the phase delay of the actual current with respect to the oscillation voltage command value of q-axis; and sets a phase of the oscillation voltage command value of q-axis to a phase obtained by advancing the reverse phase of the torque ripple component by the correction phase.
    Type: Application
    Filed: July 30, 2019
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tatsuya MORI, Masahiko ORII, Genki FUJII, Yu HIROTANI
  • Publication number: 20220223992
    Abstract: An antenna apparatus is provided that allows cooling with a high heat dissipation effect even when the antenna apparatus is reduced in height. The antenna apparatus includes an antenna element, a mount on which the antenna element is provided, a radome to accommodate the antenna element, and a skirt provided on the mount. The mount on which the antenna element is provided has a side surface including a surface to which an inner circumferential surface of the radome is attached. A skirt provided on the mount has an outer circumferential surface on which a heat dissipation fin to dissipate heat to outside is formed. The heat is transmitted from the antenna element through the mount to the skirt.
    Type: Application
    Filed: April 9, 2020
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventor: Taro UEDA
  • Publication number: 20220223511
    Abstract: A semiconductor device includes: an insulating substrate including a circuit pattern; a semiconductor chip mounted on the insulating substrate and connected to the circuit pattern; and an overcurrent interruption mechanism constituted with a same material as material of the circuit pattern, connected to the circuit pattern in series, wherein when an overcurrent flows, the overcurrent interruption mechanism melts and is cut.
    Type: Application
    Filed: July 9, 2021
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshitaka KIMURA, Hiroyuki MASUMOTO
  • Publication number: 20220222782
    Abstract: A local variance or an edge amount is calculated as an image feature amount by analyzing a reference image of the same field of view as multiple band images constituting a multispectral image, a filter parameter is calculated from the image feature amount, and smoothing the band images while preserving edges is performed by using the filter parameter. When a multispectral image including a band image of a wavelength band in which a sufficient signal amount is not obtained is obtained, it is possible to improve the S/N ratio of the multispectral image without destroying edges.
    Type: Application
    Filed: May 16, 2019
    Publication date: July 14, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kohei KURIHARA, Daisuke SUZUKI