Patents Assigned to Mitsubishi Electric Corporation
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Publication number: 20240104942Abstract: A passenger state determination device includes: a third determination part finally determining a state of a passenger based on a first determination result as a determination result of the state of the passenger by the first determination part and a second determination result as a determination result of the state of the passenger by the second determination part. The third determination part determines the first determination result to be a final determination result of the state of the passenger in a normal state, and when the first determination result is changed and the third determination part determines that the first determination result after the change is not appropriate, the third determination part determines the second determination result or the first determination result before the change to be a final determination result of the state of the passenger.Type: ApplicationFiled: February 12, 2021Publication date: March 28, 2024Applicant: Mitsubishi Electric CorporationInventor: Taro KUMAGAI
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Publication number: 20240103114Abstract: A positioning apparatus (100) includes a temporary position computation unit (120), a two-dimensional position computation unit (140), a three-dimensional position computation unit (150), and a position aggregation unit (160), and executes three-dimensional positioning of a terminal using a relative angle formed by each base station and the terminal. The temporary position computation unit (120) computes a temporary position of the terminal based on observation data. The two-dimensional position computation unit (140) computes a two-dimensional position of the terminal based on the observation data and the temporary position. The three-dimensional position computation unit (150) computes a three-dimensional position of the terminal based on the observation data and the temporary position. The position aggregation unit (160) determines the position of the terminal by aggregating the two-dimensional position and the three-dimensional position.Type: ApplicationFiled: November 30, 2023Publication date: March 28, 2024Applicant: Mitsubishi Electric CorporationInventor: Futa WATANABE
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Publication number: 20240104266Abstract: An occupancy model selection apparatus (100) includes an occupancy model selection unit (103). The occupancy model selection unit (103) evaluates each of a plurality of occupancy models which predict occupancy situation in a simulation target area during a simulation period, based on a power consumption value corresponding to each of the plurality of occupancy models and on a past input condition; and based on a result of evaluation of each of the plurality of occupancy models, selects an occupancy model that generates a simulation result relatively close to an actual power consumption value in the simulation period corresponding to the past input condition in the simulation target area.Type: ApplicationFiled: December 11, 2023Publication date: March 28, 2024Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Risa MURAKAMI, Shinichiro OTANI
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Publication number: 20240101279Abstract: A flying object (109) flies on the earth's limb. Three surveillance satellites (120) monitor the earth's limb from different latitudes than each other at the time of interest and transmit three sets of monitoring data. A ground system (130) receives the three sets of monitoring data, calculates three line-of-sight directions from the three surveillance satellites to the flying object at the time of interest based on the three sets of monitoring data, and calculates flying object coordinate values indicating the position of the flying object at the time of interest based on the three line-of-sight directions.Type: ApplicationFiled: February 9, 2022Publication date: March 28, 2024Applicant: Mitsubishi Electric CorporationInventor: Hisayuki MUKAE
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Publication number: 20240105364Abstract: A vacuum valve includes a structure having: a container in which a fixed-side end plate and a movable-side end plate are fixed to both ends of an insulation cylinder; and an arc shield at an intermediate portion of the insulation cylinder. The vacuum valve includes: a voltage nonlinear resistance layer containing particles having a voltage nonlinear resistance characteristic at at least either one of an outer creepage surface or an inner creepage surface of the insulation cylinder. A filling rate of the particles in the voltage nonlinear resistance layer has a distribution along a film thickness direction, and a filling rate of the particles in an outermost layer is not greater than half of an average filling rate of the particles in an entirety of the voltage nonlinear resistance layer.Type: ApplicationFiled: March 31, 2021Publication date: March 28, 2024Applicant: Mitsubishi Electric CorporationInventors: Katsuya JINNO, Tatsuya KOYAMA, Taiki DONEN, Yasutomo OTAKE, Naoya AIHARA
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Publication number: 20240106316Abstract: A DC power supply and distribution system is obtained that improves power distribution efficiency at a low-load factor while suppressing overall upsizing. The DC power supply and distribution system includes a main AC/DC converter and an auxiliary AC/DC converter connected in parallel to the main AC/DC converter and having a rated power capacity smaller than that of the main AC/DC converter, wherein when the absolute value of the DC output power is smaller than the absolute value of a threshold power set smaller than the rated power capacity of the auxiliary AC/DC converter, a first switching command for switching from the first operation mode to the second operation mode is generated for a power conversion unit.Type: ApplicationFiled: February 26, 2021Publication date: March 28, 2024Applicant: Mitsubishi Electric CorporationInventors: Yusuke KATO, Takuya KATAOKA, Tomoyuki KAWAKAMI, Kikuo IZUMI
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Publication number: 20240106320Abstract: A power conversion device includes a first solid pattern provided on a multi-layer wiring substrate and connected to a positive side of a first power supply, a second solid pattern provided on the multi-layer wiring substrate and connected to a negative side of the first power supply, and a third solid pattern provided on the multi-layer wiring substrate and connected to a negative side of a second power supply that is insulated from the first power supply. The first solid pattern and the third solid pattern are arranged so as to at least partially overlap in a first direction of the multi-layer wiring substrate, and the second solid pattern and the third solid pattern are arranged so as to at least partially overlap in the first direction of the multi-layer wiring substrate.Type: ApplicationFiled: July 10, 2023Publication date: March 28, 2024Applicant: Mitsubishi Electric CorporationInventor: Ryoma HAYASHI
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Publication number: 20240107364Abstract: The disclosure relates to a method for calculating capabilities of a WB in a communication system within a TSN network. The WB comprises at least a UPF, a BS and a UE. The UPF comprises at least one NW port enabling communication between said BS and a first subnetwork. The UE is wirelessly connected, within the TSN network, to said BS, and comprises a DS port enabling communication with a second subnetwork. The method is performed at the WB and comprises estimating a performance capacity of the wireless connection between the BS and the UE based on information related to an intended network usage for time-sensitive communication at the WB, and calculating the TSN capabilities of the WB corresponding to the estimated performance capacity. The disclosure further relates to a corresponding communication system.Type: ApplicationFiled: September 28, 2021Publication date: March 28, 2024Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Artem BORYSKIN, Herve BONNEVILLE, Nicolas GRESSET
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Publication number: 20240101282Abstract: A monitoring system (404) includes a plurality of monitor satellites including monitoring devices and communication devices. A satellite information transmission system (403) includes a plurality of communication satellites including communication devices. A coping system (405) includes land, sea, and air coping assets to cope with a flying object. A flying object coping system (401) transmits flying object information, generated by the monitoring system (404) that monitors a flying object (601), to the coping system (405) via the satellite information transmission system (403). The coping system (405) includes a satellite unified ordering center (810) including a communication route search device (811) for satellite information. The satellite unified ordering center (810) transmits order commands to a monitor satellite cluster included in the monitoring system (404) and to a communication satellite cluster included in the satellite information transmission system (403).Type: ApplicationFiled: February 16, 2022Publication date: March 28, 2024Applicant: Mitsubishi Electric CorporationInventor: Hisayuki MUKAE
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Publication number: 20240101452Abstract: A water-using apparatus includes a water-feeding unit configured to feed water, a water-treating unit connected to the water-feeding unit by a pipe and being configured to perform a function in which ionic substances contained in water fed from the water-feeding unit are removed by an electrical deionization unit, a water-using unit connected to the water-treating unit by a pipe and configured to use water having flowed through the water-treating unit, a drainpipe through which water with increased concentration of ionic substances removed by the water-treating unit is drained, and a controller configured to control a passage for water fed from the water-feeding unit and to cause water with increased concentration of ionic substances to be drained through the drainpipe.Type: ApplicationFiled: December 13, 2019Publication date: March 28, 2024Applicant: Mitsubishi Electric CorporationInventors: Yoshihiro NAKAYAMA, Tadashi SAITO, Seiji NODA, Masaru TAKADA
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Patent number: 11942981Abstract: A receiver includes: a correlation value calculation unit calculating a first cross-correlation function between a received signal, having a preamble spread with an up chirp and a down chirp, and the up chirp and calculating a second cross-correlation function between the received signal and the down chirp; a power value calculation unit calculating first and second power values of the first and second cross-correlation functions; a correlation power memory storing the first and second power values at each sample timing for one period of a spread code; a threshold determination unit determining first and second estimated timings from the first and second power values for one period of the spread code, respectively; and an estimation unit estimating a spread code timing of a transmitter using the first and second estimated timings, and performing coarse estimation of a frequency offset with respect to the transmitter.Type: GrantFiled: April 22, 2022Date of Patent: March 26, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Megumi Fukuma, Masatsugu Higashinaka
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Patent number: 11940192Abstract: An air conditioning device has: a refrigerant circuit that includes a compressor, a switching valve, a cascade heat exchanger, an expansion valve and an outdoor heat exchanger connected to one another by a first pipe through which a refrigerant flows, and that performs a defrosting operation in which the refrigerant discharged from the compressor is introduced into the outdoor heat exchanger; a heat-transfer medium circuit that includes a pump, the cascade heat exchanger, and the indoor heat exchanger connected to one another by a second pipe through which a heat-transfer medium flows; and a control device that controls the compressor and the pump. When an amount of heat storage of the heat-transfer medium is less than a threshold, the control device reduces the heating capability of the indoor heat exchanger when the air conditioning device transitions from a heating operation to the defrosting operation.Type: GrantFiled: December 18, 2018Date of Patent: March 26, 2024Assignee: Mitsubishi Electric CorporationInventors: Ryo Tsukiyama, Satoru Yanachi, So Nomoto, Takuya Matsuda, Naoki Kato
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Patent number: 11942827Abstract: A rotor includes an electromagnetic steel sheet, a first permanent magnet, and a second permanent magnet. The electromagnetic steel sheet includes a first magnet insertion hole and a second magnet insertion hole that are arranged in a V shape, and also includes a center rib between the first magnet insertion hole and the second magnet insertion hole. The rotor satisfies T?W1?2×T?W2, where T is a thickness of the electromagnetic steel sheet, W1 is a minimum width of the center rib, and W2 is a maximum width of the center rib.Type: GrantFiled: October 30, 2018Date of Patent: March 26, 2024Assignee: Mitsubishi Electric CorporationInventor: Atsushi Ishikawa
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Patent number: 11942382Abstract: When a voltage is applied to a semiconductor element formed into a semiconductor substrate for evaluating the electrical characteristic of the semiconductor element, partial discharge between the semiconductor element and an inter-element portion, adhesion of a foreign substance to the semiconductor substrate, and formation of a trace of a component in the semiconductor substrate are prevented. A semiconductor device includes a semiconductor substrate and a discharge inhibitor. The semiconductor substrate includes a plurality of semiconductor elements and an inter-element portion. The semiconductor elements are arranged in a spreading direction of the semiconductor substrate. The inter-element portion is between adjacent semiconductor elements among the semiconductor elements. The discharge inhibitor is bonded not to a surface of a center of each semiconductor element among the semiconductor elements but to a surface of the inter-element portion. The discharge inhibitor is made of an insulator.Type: GrantFiled: May 14, 2020Date of Patent: March 26, 2024Assignee: Mitsubishi Electric CorporationInventor: Noritsugu Nomura
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Patent number: 11940190Abstract: A refrigeration cycle apparatus includes a compressor, a four-way valve, a first outdoor heat exchanger, a first expansion valve, and an indoor heat exchanger. The four-way valve includes a casing, a first flow channel, a second flow channel, a flow channel switching piston, and a wall portion. The flow channel switching piston is configured to slide along an inner surface to switch between passing the refrigerant through the first flow channel and passing the refrigerant through the second flow channel. The wall portion is configured to slide along the inner surface together with the flow channel switching piston and is disposed with a space between the flow channel switching piston and wall portion to cover the flow channel switching piston.Type: GrantFiled: July 16, 2019Date of Patent: March 26, 2024Assignee: Mitsubishi Electric CorporationInventors: Komei Nakajima, Yusuke Tashiro
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Patent number: 11938986Abstract: A control device includes a changing rate calculator, a first threshold calculator, and a separation determiner. The control device determines whether a current collector is separate from a power line, in a power conversion system in which a power converter converts power supplied from the current collector to the primary side of the power converter into alternating-current (AC) power and supplies the AC power to a motor connected to the secondary side of the power converter. The changing rate calculator calculates a changing rate of the voltage at the primary side of the power converter. The first threshold calculator calculates a first threshold having the absolute value positively correlated with an output power from the power converter. The separation determiner compares the changing rate with the first threshold and determines whether the current collector is separate from the power line.Type: GrantFiled: July 4, 2018Date of Patent: March 26, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Michio Otsubo
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Patent number: 11942758Abstract: A manufacturing method comprises: a material preparation step of forming a metal layer on a front side surface of a submount bar body which is to face a laser bar on which a front side electrode and a back side electrode are formed, to prepare a submount bar on which the laser bar is to be mounted; a jig installation step of installing the submount bar and the laser bar that are provided in plural number alternately stacked each other on an installation jig; a bonding step of bonding the metal layer and the back side electrode by increasing the temperature of the installation jig; and a protective film forming step of forming a protective film on cleaved end faces of the laser bar in a protective film forming apparatus using the installation jig in which the submount bars and the laser bars are installed, after the bonding step.Type: GrantFiled: March 18, 2019Date of Patent: March 26, 2024Assignee: Mitsubishi Electric CorporationInventor: Shinji Abe
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Patent number: 11942787Abstract: A solar cell power conversion device is disposed between a solar cell and a distribution system. A storage battery power conversion device is disposed between a storage battery and the distribution system. An effective voltage calculation circuit calculates an effective voltage of an AC voltage in the distribution system. Based on the effective voltage, a second control circuit and a fourth control circuit control active power and reactive power output from a first DC/AC conversion circuit and a second DC/AC conversion circuit, respectively. When a change in the effective voltage is caused by an operation of an SVR provided in the distribution system, the second and fourth control circuits control operations of the first and second DC/AC conversion circuits to suppress a change in the reactive power caused by the change in the effective voltage.Type: GrantFiled: July 23, 2019Date of Patent: March 26, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Sadayuki Inoue, Tomihiro Takano, Keishi Matsuda
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Patent number: 11938946Abstract: To provide a lane shape recognition system and a lane shape recognition method which can determine an effective range of the approximated curve corresponding to the lane shape. A lane shape recognition system and a lane shape recognition method detects relative positions of a series of marks or objects which are continuously arranged in front of an own vehicle, with respect to the own vehicle; calculates a curve which approximates the relative positions of the series of marks or objects with respect to the own vehicle; and when a plurality of curves are calculated, mutually compare shapes of plurality of curves and determines the curves corresponding to the lane shape and the effective range of the curves.Type: GrantFiled: July 18, 2019Date of Patent: March 26, 2024Assignee: Mitsubishi Electric CorporationInventors: Toshihide Satake, Fumiaki Takagi, Yuji Shimizu, Kazuhiro Nishiwaki
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Patent number: 11938980Abstract: A RIO device mounted to a train includes an output unit that outputs a signal to a relay mounted to the train, and a controller that controls whether or not to cause the output unit to output the signal. The output unit includes a readback circuit that detects whether or not the signal is outputted from the output unit. The controller makes a signal stop request and a signal output request to the output unit before operation of the train starts, acquires a detection result of the readback circuit while each of the signal stop request and the signal output request is performed, and detects abnormality of the output unit using the detection result.Type: GrantFiled: January 16, 2018Date of Patent: March 26, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Ken Shibata, Tetsuo Komura, Hiromi Goda, Hiroshi Jota, Kentaro Hoshino