Patents by Inventor Satoshi Taira
Satoshi Taira has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11983612Abstract: A classification device includes: an imaging unit that images a plurality of granular classification target objects each of which is disposed in one of a plurality of holes provided in a tray to acquire an image including the plurality of classification target objects; an acquisition unit that acquires images of each of the plurality of classification target objects by cutting out the images from the acquired image; and a sorting unit that classifies the acquired images of each of the plurality of classification target objects by using machine learning results and sorts the plurality of classification target objects based on the classification result.Type: GrantFiled: May 10, 2019Date of Patent: May 14, 2024Assignees: NEC CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGInventors: Naoki Kuwamori, Yousuke Taira, Takuya Itaki, Toshinori Maebayashi, Satoshi Takeshima, Kenji Toya
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Patent number: 11971721Abstract: To effectively enhance the operation efficiency of an autonomous mobile robot, an autonomous mobile robot control system includes a processor and a plurality of environmental cameras. The processor estimates a moving route of each of a plurality of moving bodies on the basis of characteristics of each of the plurality of moving bodies and sets a subset of the plurality of moving bodies whose moving routes overlap among the detected moving bodies as avoidance processing target moving bodies. The processor generates an avoidance procedure for the avoidance processing target moving bodies so the motion of the avoidance processing target moving bodies does not interfere with the motion of other avoidance target moving bodies.Type: GrantFiled: August 3, 2021Date of Patent: April 30, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohisa Takai, Yuhei Yamaguchi, Satoshi Toyoshima, Yuta Watanabe, Tetsuya Taira, Mikio Honda, Shiro Oda, Nobuhisa Otsuki
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Patent number: 11964402Abstract: In a robot control system, the operation of a mobile robot that moves autonomously inside a facility is controlled based at least on an image captured by a photographing device that photographs a blind area located at a blind angle to the mobile robot. When entry of the mobile robot into a predetermined area corresponding to the blind area is detected, the amount of information obtainable from an image captured by the photographing device is increased.Type: GrantFiled: November 11, 2021Date of Patent: April 23, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11926067Abstract: In a robot control system, the operation of a mobile robot that moves autonomously inside a facility is controlled based at least on an image captured by a photographing device that photographs a blind area located at a blind angle to the mobile robot. When entry of the mobile robot into a predetermined area corresponding to the blind area is detected, the amount of information obtainable from an image captured by the photographing device is increased.Type: GrantFiled: November 11, 2021Date of Patent: March 12, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11919168Abstract: A robot control system according to the present embodiment is a robot control system that controls a plurality of transport robots that is travelable autonomously in a facility. The robot control system: acquires error information indicating that an error has occurred in a first transport robot; acquires transported object information related to a transported object of the first transport robot; determines a second transport robot able to transport the transported object of the first transport robot among the transport robots based on the transported object information and the error information; and moves the second transport robot to a transfer location of the transported object of the first transport robot.Type: GrantFiled: November 10, 2021Date of Patent: March 5, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuya Taira, Shiro Oda, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma
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Patent number: 11914397Abstract: A robot control system according to the present embodiment is a robot control system that controls a plurality of mobile robots that can autonomously move in a facility. The robot control system acquires error information indicating that an error has occurred in a first transport robot, acquires transported object information related to a transported object of the first transport robot, determines a second transport robot able to transport the transported object of the first transport robot among the transport robots based on the transported object information and the error information, and moves the second transport robot to a transfer location of the transported object of the first transport robot.Type: GrantFiled: December 8, 2021Date of Patent: February 27, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11914363Abstract: A mobile robot receives first transmission information transmitted from a server device to manage the mobile robot in a state where wireless communication with the server device is possible, directly executes wireless communication with another mobile robot among the mobile robots and executes a reception process of receiving the first transmission information transmitted from the server device to manage the mobile robot from the other mobile robot in a case where wireless communication with the server device is not possible.Type: GrantFiled: December 7, 2021Date of Patent: February 27, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11857150Abstract: A signal processing apparatus relays communication of control signals between a controller and a plurality of processing modules, and includes: a communication device configured to perform communication of the control signals with the plurality of processing modules; a plurality of first storages provided respectively to correspond to the plurality of processing modules, the plurality of first storages being configured to store the control signals written by the controller; a second storage configured to store: address information indicating each communication address assigned to each of the plurality of processing modules; and correspondence information indicating correspondence relationships between the plurality of first storages and a plurality of module-side storages respectively included in the plurality of processing modules; and a synchronization processor configured to synchronize the plurality of first storages with the plurality of corresponding module-side storages via the communication device basType: GrantFiled: August 6, 2020Date of Patent: January 2, 2024Assignee: Sony Olympus Medical Solutions Inc.Inventors: Yusuke Takenouchi, Aki Mizukami, Masashige Kimura, Satoshi Taira, Keisuke Takahashi
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Patent number: 11095244Abstract: A motor drive device receiving AC power supplied from an AC source and driving a motor includes: a converter circuit converting the AC power into DC power; an inverter circuit converting the DC power into AC power to drive the motor; and a current detector detecting input current flowing on the AC side of the converter circuit. The motor drive device also includes a converter device and an inverter device. The converter device includes a control unit performing control such that input current or input power supplied to the converter circuit does not exceed an upper limit, based on a value detected by the current detector. The inverter device includes a control unit detecting voltage of a DC bus connecting the converter circuit and the inverter circuit, and limiting the output power of the inverter circuit when a detection value of the bus voltage decreases to a set lower limit.Type: GrantFiled: February 19, 2019Date of Patent: August 17, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Satoshi Taira, Yoshitomo Hayashi
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Patent number: 11056266Abstract: Provided is a filter device to be connected between an AC power source (1) and a PWM converter (2), which includes a first AC reactor (3), a second AC reactor (4) that is connected between the PWM converter (2) and the first AC reactor (3), a filter capacitor (5) whose one end is connected to a connecting portion (9) between the first AC reactor (3) and the second AC reactor (4), and a housing (15) having a cooling air inlet (16) and a cooling air outlet (17) and containing the first AC reactor (3) and the second AC reactor (4), wherein the first AC reactor (3) is disposed upwind of the second AC reactor (4).Type: GrantFiled: December 26, 2016Date of Patent: July 6, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Satoshi Taira
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Publication number: 20210059504Abstract: A signal processing apparatus relays communication of control signals between a controller and a plurality of processing modules, and includes: a communication device configured to perform communication of the control signals with the plurality of processing modules; a plurality of first storages provided respectively to correspond to the plurality of processing modules, the plurality of first storages being configured to store the control signals written by the controller; a second storage configured to store: address information indicating each communication address assigned to each of the plurality of processing modules; and correspondence information indicating correspondence relationships between the plurality of first storages and a plurality of module-side storages respectively included in the plurality of processing modules; and a synchronization processor configured to synchronize the plurality of first storages with the plurality of corresponding module-side storages via the communication device basType: ApplicationFiled: August 6, 2020Publication date: March 4, 2021Applicant: Sony Olympus Medical Solutions Inc.Inventors: Yusuke TAKENOUCHI, Aki MIZUKAMI, Masashige KIMURA, Satoshi TAIRA, Keisuke TAKAHASHI
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Publication number: 20200373868Abstract: A motor drive device receiving AC power supplied from an AC source and driving a motor includes: a converter circuit converting the AC power into DC power; an inverter circuit converting the DC power into AC power to drive the motor; and a current detector detecting input current flowing on the AC side of the converter circuit. The motor drive device also includes a converter device and an inverter device. The converter device includes a control unit performing control such that input current or input power supplied to the converter circuit does not exceed an upper limit, based on a value detected by the current detector. The inverter device includes a control unit detecting voltage of a DC bus connecting the converter circuit and the inverter circuit, and limiting the output power of the inverter circuit when a detection value of the bus voltage decreases to a set lower limit.Type: ApplicationFiled: February 19, 2019Publication date: November 26, 2020Applicant: Mitsubishi Electric CorporationInventors: Satoshi TAIRA, Yoshitomo HAYASHI
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Publication number: 20190371510Abstract: Provided is a filter device to be connected between an AC power source (1) and a PWM converter (2), which includes a first AC reactor (3), a second AC reactor (4) that is connected between the PWM converter (2) and the first AC reactor (3), a filter capacitor (5) whose one end is connected to a connecting portion (9) between the first AC reactor (3) and the second AC reactor (4), and a housing (15) having a cooling air inlet (16) and a cooling air outlet (17) and containing the first AC reactor (3) and the second AC reactor (4), wherein the first AC reactor (3) is disposed upwind of the second AC reactor (4).Type: ApplicationFiled: December 26, 2016Publication date: December 5, 2019Applicant: Mitsubishi Electric CorporationInventor: Satoshi TAIRA
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Patent number: 9762138Abstract: A power conversion device converts three-phase AC power into DC power by two-arm PWM modulation control and includes a main circuit that is constituted by a plurality of switching elements that are bridge-connected therein; a voltage-command generation unit that generates a voltage command value for the main circuit; a current detection unit that detects at least one of output currents of the main circuit; a power-factor calculation unit that calculates a power factor on the basis of the output current and the voltage command value; a carrier-signal generation unit that generates a carrier signal of a frequency corresponding to the power factor; and a PWM-signal generation unit 6 that compares the voltage command value and the carrier signal to generate a PWM signal that executes switching control on the switching elements.Type: GrantFiled: December 30, 2016Date of Patent: September 12, 2017Assignee: Mitsubishi Electric CorporationInventor: Satoshi Taira
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Publication number: 20170110980Abstract: A power conversion device converts three-phase AC power into DC power by two-arm PWM modulation control and includes a main circuit that is constituted by a plurality of switching elements that are bridge-connected therein; a voltage-command generation unit that generates a voltage command value for the main circuit; a current detection unit that detects at least one of output currents of the main circuit; a power-factor calculation unit that calculates a power factor on the basis of the output current and the voltage command value; a carrier-signal generation unit that generates a carrier signal of a frequency corresponding to the power factor; and a PWM-signal generation unit 6 that compares the voltage command value and the carrier signal to generate a PWM signal that executes switching control on the switching elements.Type: ApplicationFiled: December 30, 2016Publication date: April 20, 2017Applicant: Mitsubishi Electric CorporationInventor: Satoshi TAIRA
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Patent number: 9577547Abstract: A power conversion device converts three-phase AC power into DC power by two-arm PWM modulation control and includes a main circuit that is constituted by a plurality of switching elements that are bridge-connected therein; a voltage-command generation unit that generates a voltage command value for the main circuit; a current detection unit that detects at least one of output currents of the main circuit; a power-factor calculation unit that calculates a power factor on the basis of the output current and the voltage command value; a carrier-signal generation unit that generates a carrier signal of a frequency corresponding to the power factor; and a PWM-signal generation unit 6 that compares the voltage command value and the carrier signal to generate a PWM signal that executes switching control on the switching elements.Type: GrantFiled: January 9, 2014Date of Patent: February 21, 2017Assignee: Mitsubishi Electric CorporationInventor: Satoshi Taira
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Publication number: 20160308461Abstract: A power conversion device converts three-phase AC power into DC power by two-arm PWM modulation control and includes a main circuit that is constituted by a plurality of switching elements that are bridge-connected therein; a voltage-command generation unit that generates a voltage command value for the main circuit; a current detection unit that detects at least one of output currents of the main circuit; a power-factor calculation unit that calculates a power factor on the basis of the output current and the voltage command value; a carrier-signal generation unit that generates a carrier signal of a frequency corresponding to the power factor; and a PWM-signal generation unit 6 that compares the voltage command value and the carrier signal to generate a PWM signal that executes switching control on the switching elements.Type: ApplicationFiled: January 9, 2014Publication date: October 20, 2016Applicant: Mitsubishi Electric CorporationInventor: Satoshi TAIRA
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Patent number: 8847442Abstract: A power converting apparatus is connected to a second power converting apparatus via a power supply line and an earth line, and includes: a carrier-signal generating unit configured to switch a frequency to a frequency selected from a plurality of candidate frequencies or a candidate frequency range according to information to be transmitted to the second power converting apparatus and generate a carrier signal having the switched frequency; a PWM-signal generating unit configured to generate a PWM signal using the generated carrier signal; and a switching element for controlling a control target, which makes switching according to the PWM signal to thereby perform an operation for power conversion and transmits a voltage-to-earth signal corresponding to the information to be transmitted, to the second power converting apparatus via the power supply line and the earth line.Type: GrantFiled: February 17, 2012Date of Patent: September 30, 2014Assignee: Mitsubishi Electric CorporationInventor: Satoshi Taira
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Publication number: 20140063877Abstract: A power conversion apparatus according to the present invention includes a plurality of PWM converters (2 and 3) that are connected in parallel and convert power supplied from a common three-phase AC power supply (1) into DC power and, and supply the DC power to a common load (6) and a plurality of short-circuit prevention reactors (10 and 11) that are connected to an output side of a part or all of the PWM converters (2 and 3) and, when a deviation occurs in operation timings of switching elements of a same phase in the respective PWM converters, reduce a short-circuit current flowing between PWM converters with mismatched operation timings.Type: ApplicationFiled: August 1, 2011Publication date: March 6, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Satoshi Taira
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Patent number: D817273Type: GrantFiled: August 10, 2016Date of Patent: May 8, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Shinichi Kato, Satoshi Taira, Kiyoshi Shibata, Mizuho Sasaki, Toshinori Ichikawa