Patents by Inventor Yasunori IDO

Yasunori IDO 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).

  • Publication number: 20240172285
    Abstract: In a power conversion device, a plurality of channels of a first multiple access method are respectively allocated to a plurality of groups. A plurality of subchannels of a second multiple access method which are divisions of a corresponding channel of the first multiple access method are respectively allocated to a plurality of wireless nodes included in each of the plurality of groups. A first transmitter of each wireless node transmits individual information received from a connected submodule to a second receiver of a control protection device via an allocated channel and subchannel. A second transmitter of the control protection device simultaneously transmits a common control protection command to respective first receivers of the plurality of wireless nodes via a channel that is different from the plurality of channels of the first multiple access method.
    Type: Application
    Filed: March 29, 2021
    Publication date: May 23, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yasunori IDO
  • Patent number: 11973435
    Abstract: A power conversion device includes a host device to control each submodule, and a plurality of repeating devices to relay communication between the host device and each submodule. The host device includes a command information generator to generate command information including an arm command, and a communication controller provided for each arm. Each of a plurality of communication controllers extracts, from the command information, an arm command associated with the communication controller, and transmits a communication frame including the extracted arm command to a repeating device that is connected to each submodule included in the arm associated with the communication controller.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: April 30, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yasunori Ido, Hideaki Ohashi, Noriyuki Imada
  • Patent number: 11909201
    Abstract: In a multi-terminal DC power transmission system, a common control device is connected to a plurality of individual protective devices via a first communication network. Each of the individual protective devices is configured, when detecting change in current or voltage in a corresponding protection zone, to output a fault signal to the common control device via the first communication network and open the corresponding DC circuit breaker such that the corresponding protection zone is disconnected from the multi-terminal DC power grid and deenergized. The common control device estimates a fault occurrence zone where a fault occurs among a plurality of protection zones, based on a plurality of received fault signals. The common control device requests an individual protective device corresponding to a deenergized protection zone of the protection zones excluding the fault occurrence zone to reclose the DC circuit breaker such that the deenergized protection zone is restored.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: February 20, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masahiro Hario, Yasunori Ido, Noriyuki Imada, Keisuke Ishida
  • Publication number: 20230043622
    Abstract: In a multi-terminal DC power transmission system, a common control device is connected to a plurality of individual protective devices via a first communication network. Each of the individual protective devices is configured, when detecting change in current or voltage in a corresponding protection zone, to output a fault signal to the common control device via the first communication network and open the corresponding DC circuit breaker such that the corresponding protection zone is disconnected from the multi-terminal DC power grid and deenergized. The common control device estimates a fault occurrence zone where a fault occurs among a plurality of protection zones, based on a plurality of received fault signals. The common control device requests an individual protective device corresponding to a deenergized protection zone of the protection zones excluding the fault occurrence zone to reclose the DC circuit breaker such that the deenergized protection zone is restored.
    Type: Application
    Filed: February 4, 2020
    Publication date: February 9, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masahiro HARIO, Yasunori IDO, Noriyuki IMADA, Keisuke ISHIDA
  • Publication number: 20220399831
    Abstract: A power conversion system includes: power conversion circuitry including a plurality of submodules connected in series to each other; a host device to control each submodule included in the power conversion circuitry; a terminal device to display internal information about each submodule; and at least one repeating device to relay communication between the host device and each submodule and communication between the terminal device and each submodule. The repeating device receives, from one or more submodules communicating with the repeating device, internal information about the submodules, transmits, to the host device with a first cycle period, a first communication frame including aggregate information that is an aggregate of the received internal information, and transmits, to the terminal device with a second cycle period longer than the first cycle period, a second communication frame including internal information selected from the received internal information.
    Type: Application
    Filed: December 17, 2019
    Publication date: December 15, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yasunori IDO
  • Publication number: 20220231614
    Abstract: A power conversion device includes a host device to control each submodule, and a plurality of repeating devices to relay communication between the host device and each submodule. The host device includes a command information generator to generate command information including an arm command, and a communication controller provided for each arm. Each of a plurality of communication controllers extracts, from the command information, an arm command associated with the communication controller, and transmits a communication frame including the extracted arm command to a repeating device that is connected to each submodule included in the arm associated with the communication controller.
    Type: Application
    Filed: May 21, 2019
    Publication date: July 21, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yasunori IDO, Hideaki OHASHI, Noriyuki IMADA
  • Patent number: 11196355
    Abstract: A power conversion apparatus includes power conversion circuitry including a plurality of sub-modules connected in series to each other, a control device to generate a control command for controlling operation of the plurality of sub-modules, and a relay apparatus to relay communication between the control device and the plurality of sub-modules. For each sub-module of the plurality of sub-modules, the relay apparatus generates path information indicating a communication path from the control device to the sub-module, and outputs the generated path information to the sub-module. Each sub-module of the plurality of sub-modules generates identification information of the sub-module based on the path information corresponding to the sub-module.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: December 7, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yasunori Ido, Hideaki Ohashi, Noriyuki Imada
  • Publication number: 20210075339
    Abstract: A power conversion apparatus includes power conversion circuitry including a plurality of sub-modules connected in series to each other, a control device to generate a control command for controlling operation of the plurality of sub-modules, and a relay apparatus to relay communication between the control device and the plurality of sub-modules. For each sub-module of the plurality of sub-modules, the relay apparatus generates path information indicating a communication path from the control device to the sub-module, and outputs the generated path information to the sub-module. Each sub-module of the plurality of sub-modules generates identification information of the sub-module based on the path information corresponding to the sub-module.
    Type: Application
    Filed: January 22, 2018
    Publication date: March 11, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yasunori IDO, Hideaki OHASHI, Noriyuki IMADA
  • Patent number: 10819217
    Abstract: A power conversion device includes: power conversion circuitry including a plurality of submodules connected in series to each other; a protection device generating a protection command for protecting each submodule; and one or more relay devices outputting the protection command to each submodule. The relay device includes: a first communication circuit for communicating with the protection device; and a second communication circuit for communicating with the power conversion circuitry. The first communication circuit transmits the stop command to the second communication circuit through a first communication channel, and transmits different information different from the stop command to the second communication circuit through a second communication channel. The communication speed of communication through the first communication channel is higher than that of communication through the second communication channel.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: October 27, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yasunori Ido, Muneharu Tokunaga, Hideaki Ohashi
  • Publication number: 20200259411
    Abstract: A power conversion device includes: power conversion circuitry including a plurality of submodules connected in series to each other; a protection device generating a protection command for protecting each submodule; and one or more relay devices outputting the protection command to each submodule. The relay device includes: a first communication circuit for communicating with the protection device; and a second communication circuit for communicating with the power conversion circuitry. The first communication circuit transmits the stop command to the second communication circuit through a first communication channel, and transmits different information different from the stop command to the second communication circuit through a second communication channel. The communication speed of communication through the first communication channel is higher than that of communication through the second communication channel.
    Type: Application
    Filed: March 3, 2017
    Publication date: August 13, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yasunori IDO, Muneharu TOKUNAGA, Hideaki OHASHI
  • Patent number: 10372361
    Abstract: A memory system includes a plurality of volatile memory modules to temporarily store data in a distributed manner, a V storing place management unit included in each of the volatile memory modules, a plurality of nonvolatile memory modules to store the data stored in each of the volatile memory modules in a distributed manner, and a NV storing place management unit included in each of the nonvolatile memory modules. Each V storing place management unit and each NV storing place management unit communicate and determine the destination nonvolatile memory module for each volatile memory module. The data is transmitted to the determined destination nonvolatile memory module and stored in the destination nonvolatile memory module.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: August 6, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ryota Tsujio, Tetsuro Kato, Yasunori Ido
  • Publication number: 20170220286
    Abstract: A memory system includes a plurality of volatile memory modules to temporarily store data in a distributed manner, a V storing place management unit included in each of the volatile memory modules, a plurality of nonvolatile memory modules to store the data stored in each of the volatile memory modules in a distributed manner, and a NV storing place management unit included in each of the nonvolatile memory modules. Each V storing place management unit and each NV storing place management unit communicate and determine the destination nonvolatile memory module for each volatile memory module. The data is transmitted to the determined destination nonvolatile memory module and stored in the destination nonvolatile memory module.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 3, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ryota TSUJIO, Tetsuro KATO, Yasunori IDO