Patents Assigned to Mitsubishi Electric Corporation
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Patent number: 12181364Abstract: In at least two groups of independent sensors connected to an electronic control device(s), at least two output signal ports are included in a sensor of a first group, and one output signal port is included in a sensor of a second group; and two output signals in the first group have different characteristics while having a constant relationship to each other defined in advance, and the one output signal in the second group has an equivalent characteristic to either one of the two output signals in the first group. The electronic control device(s) includes an abnormality determination unit which is configured in such a manner that all of output signals of the output signal ports are compared, and, for the control by the electronic control device(s), only a normal output signal(s) is used among the output signals thereof having been determined by the abnormality determination unit.Type: GrantFiled: June 28, 2019Date of Patent: December 31, 2024Assignee: Mitsubishi Electric CorporationInventors: Yu Kawano, Takashi Yagihara
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Patent number: 12183658Abstract: A semiconductor module includes a refrigerant jacket including a refrigerant passage through which a refrigerant circulates and an opening extending from an outer surface to the refrigerant passage, a base mounted on the refrigerant jacket and closing the opening, and a semiconductor element provided at the base. The base includes an annular peripheral wall positioned inside the opening, a bottom plate connected to an end portion of the peripheral wall on a side closer to the refrigerant passage, and a fin protrusion protruding from the bottom plate toward the inside of the refrigerant passage and formed on the bottom plate. The base has a recess formed with the peripheral wall and the bottom plate and extending toward the opening. The semiconductor element is disposed on the bottom plate inside the recess.Type: GrantFiled: July 26, 2019Date of Patent: December 31, 2024Assignee: Mitsubishi Electric CorporationInventor: Koichi Ushijima
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Patent number: 12183206Abstract: A motion state determination apparatus according to the present disclosure includes a sensor for obtaining observation data on a target object, a route data storage unit, a route component predictor that calculates component parallel and vertical to the route of a motion-dimension prediction value and a prediction error, a first coordinate transformer that transforms a motion-dimension prediction value and a prediction error into those on a coordinate system the same as a first coordinate system, a filter that calculates a motion-dimension estimation value and an estimation error, a second coordinate transformer that transforms a motion-dimension estimation value and an estimation error into a component parallel to the route and a component vertical to the route and a motion-dimension prediction value and a prediction error, and a state determinator that determines a motion state of the target object. As a result, the frequency of an erroneous determination can be decreased.Type: GrantFiled: January 18, 2019Date of Patent: December 31, 2024Assignee: Mitsubishi Electric CorporationInventor: Kyosuke Konishi
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Patent number: 12183647Abstract: The present invention provides a semiconductor device including an insulating layer, a conductive layer bonded to one main surface of the insulating layer, a semiconductor element arranged such that the upper surface of the semiconductor element faces a direction same as the one main surface of the insulating layer, an upper electrode provided on the upper surface of the semiconductor element, a wiring member that has one end electrically bonded to the upper electrode of the semiconductor element and has another end electrically bonded to the conductive layer, and has a hollow portion, a first sealing material, and a second sealing material, in which the first sealing material seals at least part of the semiconductor element so as to be in contact with the semiconductor element, and the second sealing material seals the wiring member so as to be in contact with the wiring member.Type: GrantFiled: March 9, 2021Date of Patent: December 31, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Soichi Sakamoto, Junji Fujino, Hiroshi Kawashima, Taketoshi Maeda
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Patent number: 12184128Abstract: An electric rotating machine apparatus includes an electric rotating machine having a windings and an output axle, a power module having a switching device connected with the winding, a bus bar that is held by a bus-bar holder and is included in a power-supply path to the power module, two or more smoothing capacitors connected with the bus bar, and a capacitor holder in which at a more outer side in the radial direction of the electric rotating machine than the bus-bar holder is, the two or more smoothing capacitors are arranged in the axial direction of the electric rotating machine, and that holds the two or more smoothing capacitors from the outer circumferential side of the electric rotating machine.Type: GrantFiled: January 16, 2020Date of Patent: December 31, 2024Assignee: Mitsubishi Electric CorporationInventors: Junya Suzuki, Akira Kimishima, Takahisa Kawaguchi, Takanori Ichikawa
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Patent number: 12184136Abstract: In a rotating electric machine, an axis direction width of a rotor core arranged at an end of a load side of the rotating shaft is set to be ?, an axis direction width of a rotor core arranged at an opposite side end of the load side is set to be ?, a distance from a support part at the load side to the rotor core at the load side is set to be ?, and a distance from a support part at the opposite side of the load side to a rotor core at the opposite side of the load side is set to be ?. In a case of ?>?, ??? is satisfied, and in a case of ?<?, ??? is satisfied. Thereby, the vibration of the rotor can be suppressed effectively.Type: GrantFiled: July 31, 2020Date of Patent: December 31, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takayuki Yasumori, Takahiro Mizuta, Kosho Yamane
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Patent number: 12184332Abstract: A single-fiber bidirectional optical ring system includes: a central station; slave stations; and a network which connects the central station and the slave stations in a ring shape by optical fibers.Type: GrantFiled: February 1, 2023Date of Patent: December 31, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuyuki Ishida, Ayano Sakamoto, Satoshi Yoshima
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Patent number: 12184145Abstract: A breathing device includes a ventilator, which is arranged on an end surface of the control unit provided with a connector on an opposite side of an output shaft of a rotating machine so as to protrude from an inside of the electric power steering device toward an outside of the electric power steering device, and is configured to provide a breathing action through ventilation between the inside and the outside. The ventilator protrudes in a horizontal direction or upward with respect to the horizontal direction.Type: GrantFiled: July 5, 2018Date of Patent: December 31, 2024Assignee: Mitsubishi Electric CorporationInventors: Toyoaki Udo, Yoshihito Asao
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Patent number: 12184206Abstract: To provide a controller for rotary electric machine which can suppress the increase in the switching frequency by the voltage for estimation while reducing the estimation delay of the magnetic pole position (the rotational angle). A controller for rotary electric machine turns on and off switching devices which the inverter has and applies voltage to the winding, based on a comparison result between the voltage command and the carrier wave; generates the voltage command for estimation of a preliminarily set one period on a stationary coordinate system fixed to the winding; generates the carrier wave of the same one period as the one period of the voltage command for estimation; extracts the frequency component of the one period of the voltage command for estimation from the current detection value; and estimates a rotational angle based on the frequency component.Type: GrantFiled: June 4, 2019Date of Patent: December 31, 2024Assignee: Mitsubishi Electric CorporationInventors: Jun Kitagawa, Tatsuya Mori, Isao Kezobo, Seiji Sawada, Kenta Kubo
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Patent number: 12185507Abstract: To obtain a power conversion device reduced in size and weight wherein heat generated from a capacity module is sufficiently dissipated, thus enabling prevention of a rise in the temperature of the capacity module. The power conversion device includes a first cooler which, having mounted thereon the capacity module, cools heat generated from the capacity module; a second cooler which, having mounted thereon a semiconductor module, cools heat generated from the semiconductor module; and a heat dissipation plate which, being thermally connected to the capacity module and to the second cooler, dissipates via the second cooler one portion of the heat generated from the capacity module, wherein the first and second coolers, being disposed so as to form a refrigerant flow path, both share a refrigerant.Type: GrantFiled: July 29, 2022Date of Patent: December 31, 2024Assignee: Mitsubishi Electric CorporationInventors: Toru Daigo, Taisuke Iwakiri, Katsuyuki Ochiai
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Patent number: 12183774Abstract: To provide a technique of reducing gate oscillation while suppressing reduction in switching speed. A semiconductor device according to the technique disclosed in the present description includes: a first gate electrode in an active region; a gate pad in a first region different from the active region in a plan view; and a first gate line electrically connecting the first gate electrode and the gate pad to each other. The first gate line is formed into a spiral shape. The first gate line is made of a different type of material from the first gate electrode.Type: GrantFiled: February 22, 2019Date of Patent: December 31, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Shiro Hino, Junichi Nakashima, Takaaki Tominaga
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Publication number: 20240425773Abstract: A refrigeration cycle device including a refrigerant circuit including a compressor, wherein a refrigerant is enclosed in the refrigerant circuit, the refrigerant contains a hydrocarbon having 1 to 4 carbon atoms and a sulfur-based odorant, the compressor is filled with a refrigeration oil, the refrigeration oil contains a base oil, and the ratio of the number of oxygen atoms to the number of carbon atoms in the molecular structure of the base oil is less than 0.50.Type: ApplicationFiled: August 23, 2022Publication date: December 26, 2024Applicant: Mitsubishi Electric CorporationInventors: Kengo HIRATSUKA, Satoru TOYAMA, Kenji KOJIMA, Manami NAKAMURA
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Publication number: 20240429805Abstract: A magnetic flux modulated type magnetic gear includes a small number of poles mechanism which has a plurality of magnetic poles, a large number of poles mechanism which has more magnetic poles than the small number of poles mechanism, and a pole piece which is provided between the small number of poles mechanism and the large number of poles mechanism, wherein, in the magnetic pole of the large number of poles mechanism, a permanent magnet and a magnetic field coil are provided. And the magnetic field coil is connected to a direct current power supply, which can be turned on and off.Type: ApplicationFiled: March 12, 2021Publication date: December 26, 2024Applicant: Mitsubishi Electric CorporationInventors: Kodai OKAZAKI, Junji KITAO
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Publication number: 20240427036Abstract: Provided is a learning device for excluding a case where a pulse signal originating from a pile-up phenomenon is erroneously detected as a neutron. This learning device is a learning device that obtains a trained model for inferring a pulse origin which is an origin of a pulse signal in a neutron measurement device using a pulse measurement method, and includes: a training data acquisition unit which acquires training data including a pulse signal outputted from a detector which is an ionization chamber or a proportional counter; and a model generation unit which generates a trained model for inferring the pulse origin from the pulse signal outputted from the detector, using the training data.Type: ApplicationFiled: March 2, 2022Publication date: December 26, 2024Applicant: Mitsubishi Electric CorporationInventors: Tetsushi AZUMA, Makoto SASANO
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Publication number: 20240429282Abstract: A plan layout on a semiconductor substrate has a distribution of threshold voltages for switching. In a case where a histogram is defined by a plurality of bins each having a bin width of 100 mV for the threshold voltages and a plurality of frequencies corresponding to areas in the plan layout belonging to the respective bins, the plan layout includes a plurality of regions belonging to different bins of the plurality of bins. The plurality of regions include first to third regions. The histogram has, based on a normal distribution, a distribution tailed on a low voltage side contiguously with the normal distribution.Type: ApplicationFiled: April 16, 2024Publication date: December 26, 2024Applicant: Mitsubishi Electric CorporationInventors: Yusuke MIYATA, Yuji EBIIKE, Hayato OKAMOTO, Tomohiro TAMAKI, Kazuya KONISHI, Munetaka NOGUCHI
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Publication number: 20240429760Abstract: A rotor according the present disclosure includes: a shaft a first rotor core and a second rotor core a plurality of first magnets that are disposed so as to align in a circumferential direction on an outer circumferential surface of the first rotor core, and a plurality of second magnets that are disposed so as to align in the circumferential direction on the outer circumferential surface of the second rotor core, wherein locations of the plurality of first magnets and the plurality of second magnets are offset in the circumferential direction, and an interval between the plurality of first magnets and the plurality of second magnets in the axial direction is within a range of 0.5 to 3.0 mm.Type: ApplicationFiled: October 20, 2021Publication date: December 26, 2024Applicant: Mitsubishi Electric CorporationInventors: Takashi YAMAMOTO, Masafumi OKAZAKI, Satoru AKUTSU, Shohei FUJIKURA, Kenta MOTOYOSHI
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Publication number: 20240429148Abstract: An object of the present disclosure is to suppress damage to or occurrence of cracks on an upper surface of a semiconductor element when a bonding material for connecting a metal lead electrode to a semiconductor element is supplied onto the semiconductor element by screen printing. According to the present disclosure, a semiconductor device (101) includes a plurality of semiconductor elements (1), an insulating substrate (2) having a mounting area (2a1) where the plurality of semiconductor elements (1) are mounted on an upper surface thereof and a non-mounting area (2a2) protruding upward from the mounting area (2a1) and where no plurality of semiconductor elements (1) are mounted, and a metal lead electrode (4) bonded to an upper surface of each of the semiconductor elements (1) with a bonding material (3a), in which a difference in height between the mounting area (2a1) and the non-mounting area (2a2) is greater than or equal to a thickness of each of the semiconductor elements (1).Type: ApplicationFiled: December 15, 2021Publication date: December 26, 2024Applicant: Mitsubishi Electric CorporationInventors: Yuki YANO, Tsuyoshi MATSUOKA
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Publication number: 20240428666Abstract: A thermal image acquisition device (2) acquires a thermal image of a balcony (1). Setting circuitry (11) sets an outside area (15) corresponding to an outside of the balcony (1) and a balcony inside area (16) corresponding to inside of the balcony (1) in the thermal image. Heat source detection circuitry (9) detects a heat source (14) in the thermal image. Intrusion determination circuitry (12) determines that “there is an intrusion” if a central position of the heat source (14) with the number of pixels and a temperature equal to or greater than thresholds moves from the outside area (15) to the balcony inside area (16) in the thermal image. A determination result output device (13) outputs a determination result of the intrusion determination circuitry (12).Type: ApplicationFiled: December 21, 2021Publication date: December 26, 2024Applicant: Mitsubishi Electric CorporationInventors: Satoshi OKUDA, Masaharu HATTORI, Yasuki AIHARA, Takashi TAKENAGA
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Publication number: 20240425326Abstract: A detection device includes processing circuitry configured to acquire sensor information from at least one sensor; the at least one sensor configured to be disposed on at least one of balustrades erected on both right and left sides with respect to a moving direction of steps of at least one passenger conveyor, each of the balustrades including a plurality of side plates; determine whether or not the detection target is a designated target to be warned on a basis of the acquired sensor information; and display a warning image indicating the designated target on a display device in a case where the processing circuitry determines that the detection target is the designated target.Type: ApplicationFiled: September 6, 2024Publication date: December 26, 2024Applicant: Mitsubishi Electric CorporationInventors: Yusuke FUJIGAYA, Naoki TSURU, Sayaka KOBAYASHI, Kazufumi YOSHIDA, Kyosuke ISHII, Kei SUWA, Takayuki KITAMURA
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Publication number: 20240425067Abstract: To provide an optimal calculation apparatus which can reduce the calculation using the evaluation elements, such as constraint condition, in the initial calculation using the initial value when solving the optimization problem. An optimal calculation apparatus sets an initial value of an input variable of a specific type by switching a plurality of setting methods so that an evaluation element of an object type relevant to the input variable of the specific type can be excluded from the optimization problem in an initial calculation using the initial value; and in the initial calculation using the initial value, excludes the evaluation element of the object type relevant to the input variable of the specific type from the optimization problem, and performs calculation for solving the optimization problem.Type: ApplicationFiled: November 19, 2021Publication date: December 26, 2024Applicant: Mitsubishi Electric CorporationInventors: Yu TAKEUCHI, Noriyoshi YAMASHINA, Toshihiko HASHIBA, Saori WADA, Junya HATTORI