Patents by Inventor Hidetsugu Koga
Hidetsugu Koga 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: 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: 20210329740Abstract: An industrial machine system includes a slave device that is a component of an industrial machine, and a master device including circuitry that communicates with the slave device and control the slave device. The slave device and the master device are synchronized via a first wireless network, and communicate communication data for controlling the slave device via a second wireless network which is different from the first wireless network.Type: ApplicationFiled: June 30, 2021Publication date: October 21, 2021Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kazutoshi KOBAYASHI, Hidetsugu KOGA
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Patent number: 10852713Abstract: An industrial communication system includes multiple industrial instruments connected in series and including a first industrial instrument and a second industrial instrument connected to the first industrial instrument.Type: GrantFiled: August 31, 2018Date of Patent: December 1, 2020Assignee: KABUSHIKI KAISHA YASHAWA DENKIInventors: Hidetsugu Koga, Isamu Matsumura, Tomofumi Nishiyama
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Publication number: 20190079501Abstract: An industrial communication system includes multiple industrial instruments connected in series and including a first industrial instrument and a second industrial instrument connected to the first industrial instrument.Type: ApplicationFiled: August 31, 2018Publication date: March 14, 2019Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetsugu Koga, lsamu Matsumura, Tomofumi Nishiyama
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Patent number: 10040193Abstract: A motor control system includes first processing circuitry that controls a motor. An upper-level communication path connects an upper-level communication port of the first processing circuitry to second processing circuitry that sends an instruction to the first processing circuitry via the upper-level communication path. A lower-level communication path connects a lower-level communication port of the first processing circuitry to a plurality of devices connected in series to each other. The devices include rotational angle detection circuitry and output circuitry. The rotational angle detection circuitry detects a rotation angle of the motor. The output circuitry outputs associated information that is associated with the motor and is different from the rotational angle or that is associated with an industrial device associated with the motor.Type: GrantFiled: February 27, 2017Date of Patent: August 7, 2018Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kazutoshi Kobayashi, Takuya Miwa, Mamoru Fukuda, Yoshitaka Kashiwagi, Hidetsugu Koga, Kazuhiro Imanaga, Tadashi Okubo
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Publication number: 20170246741Abstract: A motor control system includes first processing circuitry that controls a motor. An upper-level communication path connects an upper-level communication port of the first processing circuitry to second processing circuitry that sends an instruction to the first processing circuitry via the upper-level communication path. A lower-level communication path connects a lower-level communication port of the first processing circuitry to a plurality of devices connected in series to each other. The devices include rotational angle detection circuitry and output circuitry. The rotational angle detection circuitry detects a rotation angle of the motor. The output circuitry outputs associated information that is associated with the motor and is different from the rotational angle or that is associated with an industrial device associated with the motor.Type: ApplicationFiled: February 27, 2017Publication date: August 31, 2017Applicant: Kabushiki Kaisha Yaskawa DenkiInventors: Kazutoshi KOBAYASHI, Takuya MIWA, Mamoru FUKUDA, Yoshitaka KASHIWAGI, Hidetsugu KOGA, Kazuhiro IMANAGA, Tadashi OKUBO
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Patent number: 8223804Abstract: A synchronized communication system is provided in which even when communication devices are connected in series to a transmission path, devices connected to the communication devices are synchronized so that a communication cycle can be reduced. A second communication device includes a relay path and a return path which do not pass through a storage device, and a path selection switch therefor. A first communication device instructs switching of the return path from the transmission path, measures a transmission path delay time, notifies the second communication device of it, and sends a reference time of the first communication device for each communication cycle. The second communication device corrects its reference time using the transmission path delay time and the reference time. When a new second communication device is found during synchronized communication, the first communication device also performs transmission path delay measurement using the remaining time in the communication cycle.Type: GrantFiled: September 15, 2009Date of Patent: July 17, 2012Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Hidetsugu Koga, Mamoru Fukuda, Tatsuhiko Satou
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Publication number: 20100008383Abstract: A synchronized communication system is provided in which even when communication devices are connected in series to a transmission path, devices connected to the communication devices are synchronized so that a communication cycle can be reduced. A second communication device includes a relay path and a return path which do not pass through a storage device, and a path selection switch therefor. A first communication device instructs switching of the return path from the transmission path, measures a transmission path delay time, notifies the second communication device of it, and sends a reference time of the first communication device for each communication cycle. The second communication device corrects its reference time using the transmission path delay time and the reference time. When a new second communication device is found during synchronized communication, the first communication device also performs transmission path delay measurement using the remaining time in the communication cycle.Type: ApplicationFiled: September 15, 2009Publication date: January 14, 2010Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetsugu KOGA, Mamoru Fukuda, Tatsuhiko Satou