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).
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Patent number: 11973435Abstract: 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: GrantFiled: May 21, 2019Date of Patent: April 30, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasunori Ido, Hideaki Ohashi, Noriyuki Imada
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Patent number: 11909201Abstract: 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: GrantFiled: February 4, 2020Date of Patent: February 20, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masahiro Hario, Yasunori Ido, Noriyuki Imada, Keisuke Ishida
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Publication number: 20230043622Abstract: 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: ApplicationFiled: February 4, 2020Publication date: February 9, 2023Applicant: Mitsubishi Electric CorporationInventors: Masahiro HARIO, Yasunori IDO, Noriyuki IMADA, Keisuke ISHIDA
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Publication number: 20220399831Abstract: 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: ApplicationFiled: December 17, 2019Publication date: December 15, 2022Applicant: Mitsubishi Electric CorporationInventor: Yasunori IDO
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Publication number: 20220231614Abstract: 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: ApplicationFiled: May 21, 2019Publication date: July 21, 2022Applicant: Mitsubishi Electric CorporationInventors: Yasunori IDO, Hideaki OHASHI, Noriyuki IMADA
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Patent number: 11196355Abstract: 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: GrantFiled: January 22, 2018Date of Patent: December 7, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasunori Ido, Hideaki Ohashi, Noriyuki Imada
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Publication number: 20210075339Abstract: 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: ApplicationFiled: January 22, 2018Publication date: March 11, 2021Applicant: Mitsubishi Electric CorporationInventors: Yasunori IDO, Hideaki OHASHI, Noriyuki IMADA
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Patent number: 10819217Abstract: 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: GrantFiled: March 3, 2017Date of Patent: October 27, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasunori Ido, Muneharu Tokunaga, Hideaki Ohashi
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Publication number: 20200259411Abstract: 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: ApplicationFiled: March 3, 2017Publication date: August 13, 2020Applicant: Mitsubishi Electric CorporationInventors: Yasunori IDO, Muneharu TOKUNAGA, Hideaki OHASHI
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Patent number: 10372361Abstract: 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: GrantFiled: February 27, 2014Date of Patent: August 6, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Ryota Tsujio, Tetsuro Kato, Yasunori Ido
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Publication number: 20170220286Abstract: 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: ApplicationFiled: February 27, 2014Publication date: August 3, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Ryota TSUJIO, Tetsuro KATO, Yasunori IDO