Patents Assigned to Mitsubishi Electric Corporation
  • Publication number: 20230161153
    Abstract: An optical scanning device includes a substrate and a plurality of movable mirror elements. The substrate includes a main surface. The plurality of movable mirror elements are two-dimensionally arranged on the main surface of the substrate. The plurality of movable mirror elements are capable of operating independently of each other and capable of forming a diffraction grating. Each of the plurality of movable mirror elements includes a beam, a movable mirror, and a pillar. The beam is bendable in a direction perpendicular to the main surface. The movable mirror includes a movable plate and a mirror film disposed on the movable plate. The pillar connects the movable plate and the beam to each other.
    Type: Application
    Filed: May 12, 2020
    Publication date: May 25, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Nobuaki KONNO, Takahiko ITO
  • Publication number: 20230160994
    Abstract: A relative angle acquisition unit (110) acquires a relative angle (31) between each base station of a plurality of base stations and a communication device. A provisional position calculation unit (120) calculates a position of the communication device as a provisional position (32), using the relative angle (31) and a position of each base station. A weight calculation unit (130) calculates a distance between each base station and the communication device, using the position of each base station and the provisional position, and calculates a weighting coefficient (33) for correcting the provisional position (32) for each base station, based on the distance between each base station and the communication device. A device position calculation unit (140) calculates the position of the communication device as a device position (34), using the relative angle (31), the position of each base station, and the weighting coefficient (33).
    Type: Application
    Filed: January 23, 2023
    Publication date: May 25, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventor: Futa WATANABE
  • Publication number: 20230159301
    Abstract: To provide a 3D data acquisition device, a 3D data acquisition system, and a 3D data acquisition method for an elevator which are capable of improving measurement accuracy of 3D point group data on an inside of a shaft. The 3D data acquisition device for the elevator includes: a housing that constitutes an outer shell; and a plurality of 3D distance imaging sensors which are provided in the housing so as to directly face each of a plurality of side walls of a shaft of the elevator on a horizontal projection plane and which acquire 3D point group data. According to the configuration, measurement accuracy of 3D point group data on the inside of the shaft can be improved.
    Type: Application
    Filed: April 27, 2020
    Publication date: May 25, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Haruyuki IWAMA, Wataru FUSE, Keisuke SAMBONGI, Yu ENOMOTO, Yasuo WATANABE, Hironori INAYOSHI
  • Publication number: 20230159091
    Abstract: This electric power steering device is provided with a function for: notifying a parking assistance device of a statically-steerable upper limit number obtained from an estimated motor current when static steering is performed in turnabout and a current limit value for the purpose of overheat protection of an electric power steering; and notifying the parking assistance device of whether the electric power steering can perform steering according to a target steering angle command, from a target steering angle and a target vehicle speed from the start of parking to the completion thereof, thus preventing interruption due to overheat of the electric power steering during parking assistance.
    Type: Application
    Filed: May 29, 2020
    Publication date: May 25, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Akio NUMAKURA, Hideki DOI
  • Publication number: 20230160718
    Abstract: A technique is provided with which it is possible to appropriately reduce communication data volume. A central apparatus communicates with a mobile terminal that is movable with a mobile body. The mobile terminal includes extraction-information generation means that generates extraction information by extraction from measurement information. The central apparatus includes map-information generation means that generates map information based on the extraction information transmitted from the mobile terminal to the central apparatus, and map generation control means that evaluates completeness of the map information generated by the map-information generation means and generates command information based on the completeness.
    Type: Application
    Filed: July 14, 2020
    Publication date: May 25, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshiaki ADACHI, Kentaro DAIKOKU, Yuji IGARASHI
  • Publication number: 20230160429
    Abstract: An outer ring case includes an annular guide groove housing an end of each of a plurality of inner rollers. A groove width representing a radial length of the guide groove is greater than a diameter of each inner roller. A radius representing a distance from a bearing axis to an inner wall face of the guide groove that is radially outer is smaller than a distance from the bearing axis to an axial center of each of rollers plus a radius of each inner roller.
    Type: Application
    Filed: April 20, 2020
    Publication date: May 25, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Naomichi YANAGIDATE, Shinsaku MAEDA
  • Patent number: 11654944
    Abstract: An operation status reproducing device includes an onboard information obtaining unit that obtains onboard information corresponding to date and time from an onboard device mounted on a designated train being a train specified by a train number and the date and time externally designated, a specific event detecting unit that specifies time at which a specific event occurs by analyzing the onboard information, a ground information obtaining unit that obtains ground information in a certain period including the time at which the specific event occurs from a ground device, an external information obtaining unit that obtains external information including weather information in a certain period including the time at which the specific event occurs, and a reproduction image generating unit that generates a reproduction image illustrating a past operation status of the designated train based on the onboard information, the ground information, and the external information.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: May 23, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takahiro Ito, Hiromi Goda, Masayo Nakagawa, Hiroe Takenaga
  • Patent number: 11655056
    Abstract: An attitude control apparatus (20) includes an ideal thrust direction calculator (22), an ideal attitude calculator (24), a target attitude calculator (26), and a torque calculator (28). The ideal thrust direction calculator (22) calculates an ideal thrust direction of a thruster. The target attitude calculator (26) calculates a target attitude that is the attitude of a satellite in which a deviation from an ideal attitude is minimized within a movement limitation of an attitude control actuator (14) while a panel surface faces the sun. The torque calculator (28) calculates a torque for turning the satellite from an actual attitude to the target attitude and transmits a torque instruction to the attitude control actuator (14).
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: May 23, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenji Kitamura, Takeya Shima, Katsuhiko Yamada
  • Patent number: 11656013
    Abstract: A distributor includes an upstream flow path and a downstream flow path. The downstream flow path has a branch portion and a bent portion. The branch portion has a first connecting portion connected to the upstream flow path to branch a refrigerant flow from the first connecting portion in a second direction intersecting a first direction. The bent portion has a second connecting portion connected to the branch portion and is located downstream of the branch portion in the refrigerant flow. The second connecting portion of the bent portion is located downstream of the first connecting portion of the branch portion in the refrigerant flow.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: May 23, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ryota Akaiwa, Shinya Higashiiue
  • Patent number: 11655989
    Abstract: An outdoor unit of an air-conditioning apparatus includes: a housing; and a partition plate, a device accommodated in a machine chamber, a fan accommodated in a fan chamber, the partition plate having a wiring passage, wherein the outdoor unit includes a water receiving part provided to the machine chamber, the water receiving part having a box shape, a side wall portion of the water receiving part has a first opening port, and an upper surface portion of the water receiving part has a second opening port, the water receiving part is attached to the partition plate such that an edge of the first opening port is in contact with the partition plate, a gap, through which water discharged by the water receiving part passes, is formed between a bottom portion of the water receiving part and the partition plate, the bottom portion being inclined toward the gap.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 23, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kyonosuke Oikawa, Yo Kitabatake
  • Patent number: 11654510
    Abstract: An NC device that is a numerical control device controls an additive manufacturing apparatus. The additive manufacturing apparatus performs modeling by application of a melted material. The NC device includes a monitoring unit that monitors occurrence of a drop caused by a material after being melted remaining on the material before being melted, and a command generating unit that generates commands for causing the additive manufacturing apparatus to remove the drop that has occurred.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 23, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Nobuyuki Sumi, Shun Kayashima, Satoshi Hattori, Seiji Uozumi
  • Patent number: 11658238
    Abstract: A semiconductor device includes a trench-type switching element formed in an active region and a trench-type current sense element formed in a current sense region. Below a trench in which a gate electrode of the switching element is embedded, a trench in which a gate electrode of the current sense element is embedded, and a trench formed at the boundary portion between the active region and the current sense region, protective layers are formed, respectively. The protective layer at the boundary portion between the active region and the current sense region has a divided portion that is divided in a direction from the active region to the current sense region.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: May 23, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsutoshi Sugawara, Yasuhiro Kagawa, Yutaka Fukui
  • Patent number: 11658601
    Abstract: A motor control device includes a power converter that supplies a three-phase voltage to two motors being connected in parallel, a three-phase power line that connects between one of the two motors and the power converter, a branch three-phase power line that connects between the other of the two motors and the power converter, a switching device having two switches that are provided on the branch three-phase power line, a current detection device that detects three-phase currents flowing in the two motors, and a controller. The controller performs a failure determination of the switching device by identifying a phase of a power line in which no current flows in the three-phase power line and the branch three-phase power line, and, when a failure is detected in one of the two switches in the failure determination, controls to change a state of the other switch, which operates normally, to coincide with a state of the failed switch.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 23, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshiki Asai, Akihiro Tsumura, Yasuhiko Wada, Junji Morimoto, Shigeo Takata
  • Patent number: 11655125
    Abstract: Provided is a guide shoe for a passenger conveyor, including: a base portion to be slid across a skirt guard provided along a moving direction of a plurality of steps that are movably provided; and a weight containing a material having a specific gravity larger than a specific gravity of a material of the base portion, which is provided to the base portion.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: May 23, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ryu Okuda, Kenta Shirai, Takahiro Kondo, Hiroki Mori, Nobuyuki Sowa
  • Patent number: 11658652
    Abstract: The detection circuit includes a current source and a resistor element which are connected in series via a first node between a positive electrode and a negative electrode of a switching element which is turned on and off by a driving circuit. The voltage comparator outputs a detection signal indicating a comparison result between an input DC voltage and the voltage of the first node. The DC voltage and the electric resistance value of the resistor element are set in such manner that when an inter-electrode voltage between the positive electrode and the negative electrode becomes higher than a predefined determination voltage, the voltage of the first node is higher than the DC voltage. The detection circuit and the voltage comparator are mounted on the same integrated circuit constituting the semiconductor device.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: May 23, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yo Habu, Akihisa Yamamoto
  • Patent number: 11656015
    Abstract: A refrigeration cycle apparatus is a refrigeration cycle apparatus having a refrigerant circuit having a compressor, a condenser, a supercooler, an expansion device, and an evaporator connected by a refrigerant pipe, and configured to circulate refrigerant containing refrigerant having a temperature gradient, wherein the supercooler sets a degree of supercooling of the refrigerant, which is a temperature difference between a temperature from the condenser to a refrigerant flow inlet of the supercooler and a temperature in a refrigerant flow outlet on a downstream side of the supercooler, to be larger than the temperature gradient generated at a time of refrigerant shortage of the refrigerant between the refrigerant flow inlet and the refrigerant flow outlet of the supercooler, the refrigeration cycle apparatus including a refrigerant amount determination unit configured to compare a determination threshold value set to a value larger than the temperature gradient of the refrigerant with the degree of supercoo
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: May 23, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Sata, Tomotaka Ishikawa
  • Patent number: 11659632
    Abstract: An induction cooker according to the present invention includes: a plurality of heating coils aligned in one row on a same plane; and a controller. The controller is configured to, when a heating target is placed over adjacent two or more of the plurality of heating coils, supply electric power to at least one, but not all, of the two or more adjacent ones of the plurality of heating coils and change, over time, the heating coils to which the power is supplied.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: May 23, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventor: Ikuro Suga
  • Patent number: 11656898
    Abstract: A guest operating system (120) of a virtual machine (12) writes, into a shared memory (111), data destined for a virtual machine (13) together with a destination ID and a source ID. The delivery manager (181) supplies data to a communicator (182) when a determination is made that an information processing device (21) is specified in a delivery information table (161) as a delivery destination corresponding to the destination ID and the source ID. The communicator (182) transmits the data supplied from the delivery manager (181) to the information processing device. The delivery manager (181) writes first data into a shared memory (112) and delivers the first data to the virtual machine (13) when determining that a delivery destination corresponding to the destination ID and the source ID is not specified in the deliver information table (161).
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: May 23, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Takuya Miyamaru
  • Patent number: 11657197
    Abstract: A software studying unit (122) calculates software processing time of each of a plurality of functions in a target source program. A data-flow graph generation unit (121) generates an inter-function data-flow graph of the plurality of functions based on the target source program. A hardware studying unit (130) calculates hardware processing time of each function and a circuit scale of each function by a high-level synthesis for the target source program. An implementation combination selection unit (140) selects, based on the software processing time of each function, the hardware processing time of each function, the circuit scale of each function, and the inter-function data-flow graph, an implementation combination of one or more functions to be implemented by software and one or more functions to be implemented by hardware.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: May 23, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Fumitoshi Karube, Yoshihiro Ogawa, Ryo Yamamoto
  • Patent number: 11658526
    Abstract: A motor includes a rotor, a stator, and a magnetic pole position detection element to detect a position of a magnetic pole of the rotor. The rotor includes a resin magnet having a first orientation and a second orientation, and a shaft fixed to the resin magnet, and the first and second orientations and are different from each other in a radial direction. The magnetic pole position detection element faces the resin magnet in an axial direction.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: May 23, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Aso, Takaya Shimokawa, Junichiro Oya, Naoki Tamura