Patents by Inventor Junya HISAMATSU
Junya HISAMATSU 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: 11956092Abstract: A communication system includes a master device, a connector, a superordinate trunk cable connecting the master device and the connector, a superordinate slave device connected to the connector, a subordinate slave device, and a subordinate trunk cable connecting the connector and the subordinate slave device. The connector includes a superordinate power line via which power is supplied from the master device, a power branching unit to divide the superordinate power line into a first power line connected to the superordinate slave device and a second power line connected to the subordinate slave device, a superordinate signal line via which communication data between the master device and the superordinate slave device is configured to be transmitted, and a subordinate signal line via which communication data between the superordinate slave device and the subordinate slave device is configured to be transmitted.Type: GrantFiled: July 21, 2021Date of Patent: April 9, 2024Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetsugu Koga, Kunihiko Ogawa, Isamu Matsumura, Junya Hisamatsu, Yasuhiro Matsutani
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Publication number: 20230106184Abstract: An abnormality determination system includes first data acquisition circuitry configured to acquire time-series data relating to an operation of a device, sample data creation circuitry configured to create sample data based on abnormality time-series data which the first data acquisition circuitry acquires while an abnormality occurs in the operation of the device, and first abnormality determination circuitry configured to determine the abnormality in the operation of the device based on the time-series data and the sample data.Type: ApplicationFiled: August 29, 2022Publication date: April 6, 2023Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tadashi OKUBO, Toshinobu KIRA, Junya HISAMATSU, Minoru KOGA
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Patent number: 11245548Abstract: A slave device includes a first connector, a second connector, a switch, and a communication circuit. The switch is alternatively connectable to the first connector or the second connector according to a connection way via which the slave device is connected to a master device and another slave device. The communication circuit is connected to the first connector and the switch. The communication circuit is configured to transmit and receive a first communication signal to and from the first connector, and is configured to transmit and receive a second communication signal to and from the switch.Type: GrantFiled: February 19, 2020Date of Patent: February 8, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Manabu Fujita, Wataru Nozaki, Isamu Matsumura, Junya Hisamatsu
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Publication number: 20210351949Abstract: A communication system includes a master device, a connector, a superordinate trunk cable connecting the master device and the connector, a superordinate slave device connected to the connector, a subordinate slave device, and a subordinate trunk cable connecting the connector and the subordinate slave device. The connector includes a superordinate power line via which power is supplied from the master device, a power branching unit to divide the superordinate power line into a first power line connected to the superordinate slave device and a second power line connected to the subordinate slave device, a superordinate signal line via which communication data between the master device and the superordinate slave device is configured to be transmitted, and a subordinate signal line via which communication data between the superordinate slave device and the subordinate slave device is configured to be transmitted.Type: ApplicationFiled: July 21, 2021Publication date: November 11, 2021Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetsugu KOGA, Kunihiko OGAWA, Isamu MATSUMURA, Junya HISAMATSU, Yasuhiro MATSUTANI
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Publication number: 20200280460Abstract: A slave device includes a first connector, a second connector, a switch, and a communication circuit. The switch is alternatively connectable to the first connector or the second connector according to a connection way via which the slave device is connected to a master device and another slave device. The communication circuit is connected to the first connector and the switch. The communication circuit is configured to transmit and receive a first communication signal to and from the first connector, and is configured to transmit and receive a second communication signal to and from the switch.Type: ApplicationFiled: February 19, 2020Publication date: September 3, 2020Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Manabu FUJITA, Wataru NOZAKI, Isamu MATSUMURA, Junya HISAMATSU
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Patent number: 10298166Abstract: A motor control system includes a motor, and motor control circuitry that controls driving electric power for the motor based on a driving state quantity of the motor, and upon input of a safety request signal from outside the motor control circuitry, monitors a relationship between a driving state quantity and an operation monitor pattern selected from multiple kinds of operation monitor patterns using multiple simultaneously functioning safety function software modules.Type: GrantFiled: October 19, 2017Date of Patent: May 21, 2019Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Isamu Matsumura, Junya Hisamatsu
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Patent number: 10274944Abstract: A motor control system includes an encoder, and motor control circuitry. The encoder includes a first disk and a second disk which are mounted to a rotation shaft of a motor, a first rotation position detection sensor that detects a rotation position in one rotation of the rotation shaft of the motor from the first disk, a second rotation position detection sensor that detects a rotation position in one rotation of the rotation shaft of the motor from the second disk, and transmission circuitry that transmits first safety data, which includes first rotation position data indicating the rotation position detected by the first rotation position detection sensor and second rotation position data indicating the rotation position detected by the second rotation position detection sensor, and the control circuitry compares the rotation position included in the first rotation position data and the rotation position included in the second rotation position data.Type: GrantFiled: October 20, 2017Date of Patent: April 30, 2019Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Isamu Matsumura, Junya Hisamatsu
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Publication number: 20180294762Abstract: A motor control system includes a motor, and motor control circuitry that controls driving electric power for the motor based on a driving state quantity of the motor, and upon input of a safety request signal from outside the motor control circuitry, monitors a relationship between a driving state quantity and an operation monitor pattern selected from multiple kinds of operation monitor patterns using multiple simultaneously functioning safety function software modules.Type: ApplicationFiled: October 19, 2017Publication date: October 11, 2018Applicant: Kabushiki Kaisha Yaskawa DenkiInventors: Isamu Matsumura, Junya Hisamatsu
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Publication number: 20180275645Abstract: A motor control system includes an encoder, and motor control circuitry. The encoder includes a first disk and a second disk which are mounted to a rotation shaft of a motor, a first rotation position detection sensor that detects a rotation position in one rotation of the rotation shaft of the motor from the first disk, a second rotation position detection sensor that detects a rotation position in one rotation of the rotation shaft of the motor from the second disk, and transmission circuitry that transmits first safety data, which includes first rotation position data indicating the rotation position detected by the first rotation position detection sensor and second rotation position data indicating the rotation position detected by the second rotation position detection sensor, and the control circuitry compares the rotation position included in the first rotation position data and the rotation position included in the second rotation position data.Type: ApplicationFiled: October 20, 2017Publication date: September 27, 2018Applicant: Kabushiki Kaisha Yaskawa DenkiInventors: Isamu MATSUMURA, Junya HISAMATSU
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Patent number: 9941823Abstract: This disclosure discloses a motor control device configured to control a motor. The motor control device includes an inverter part, a gate driving circuit, a PWM generation circuit, at least one gate buffer, and a control part. The inverter part is configured to convert direct current into alternate current in response to a motor drive command. The gate driving circuit is configured to drive the inverter part. The PWM generation circuit is configured to generate a PWM signal applied to the gate driving circuit. The at least one gate buffer is disposed between the gate driving circuit and the PWM generation circuit. The control part is configured to apply a test signal to the gate buffer to determine abnormality of the gate buffer.Type: GrantFiled: April 26, 2016Date of Patent: April 10, 2018Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Junya Hisamatsu, Taishi Hiromi, Yusuke Tanaka
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Publication number: 20160241174Abstract: This disclosure discloses a motor control device configured to control a motor. The motor control device includes an inverter part, a gate driving circuit, a PWM generation circuit, at least one gate buffer, and a control part. The inverter part is configured to convert direct current into alternate current in response to a motor drive command. The gate driving circuit is configured to drive the inverter part. The PWM generation circuit is configured to generate a PWM signal applied to the gate driving circuit. The at least one gate buffer is disposed between the gate driving circuit and the PWM generation circuit. The control part is configured to apply a test signal to the gate buffer to determine abnormality of the gate buffer.Type: ApplicationFiled: April 26, 2016Publication date: August 18, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Junya HISAMATSU, Taishi HIROMI, Yusuke TANAKA