Patents by Inventor Koji Kudo
Koji Kudo 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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Publication number: 20250070684Abstract: An electric power conversion device according to an embodiment includes: a converter circuit that converts direct current power to alternating current power; a circuit breaker one end of which is connectable to an external system and another end of which is connected to the converter circuit via a filter circuit; and an injector that, before injecting the circuit breaker during activation, sets the converter circuit to an operating state, determines whether a voltage at the one end and a voltage at the other end meet a synchronization condition, and injects the circuit breaker when the synchronization condition is met.Type: ApplicationFiled: December 15, 2021Publication date: February 27, 2025Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Shunsuke KAWACHI, Yukina AKIYAMA, Yuki KUDO, Yoko SAKAUCHI, Koji TOBA, Kenji MITSUMOTO, Daisuke TAKEDA
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Publication number: 20250070555Abstract: A power conversion device includes a conversion circuit, a grid forming control circuit, a grid following control circuit, a modulation circuit, a switching circuit, a phase synchronization processing circuit, an initial value computing circuit, and a synchronization adjusting circuit. When a switching signal instructing switching from grid forming control to grid following control is received, the phase synchronization processing circuit computes a synchronous phase by phase synchronization processing for which an amplitude of a grid voltage is used as input. The initial value computing circuit computes an initial amplitude command value based on the amplitude of the grid voltage and the synchronous phase. The synchronization adjusting circuit sets the initial amplitude command value to be an initial value of a command value of an amplitude of an output voltage in the grid following control after switching from the grid forming control.Type: ApplicationFiled: January 7, 2022Publication date: February 27, 2025Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Yukina AKIYAMA, Shunsuke KAWACHI, Yuki KUDO, Yoko SAKAUCHI, Koji TOBA, Kenji MITSUMOTO, Daisuke TAKEDA
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Publication number: 20250070687Abstract: A power conversion device is disclosed in which a grid following amplitude command value and a grid following phase command value are output in response to receiving a switching signal instructing switching from grid following control to grid forming control. The grid following amplitude command value indicates a target value of an amplitude computed by the grid following control. The grid following phase command value indicates a target value of a phase computed by the grid following control. When the grid following control is switched to the grid forming control, an initial value of the target value of the amplitude in the grid forming control to be the grid following amplitude command value is set, and an initial value of the target value of the phase in the grid forming control to be the grid following phase command value is set.Type: ApplicationFiled: December 16, 2021Publication date: February 27, 2025Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Yukina AKIYAMA, Shunsuke KAWACHI, Yuki KUDO, Yoko SAKAUCHI, Koji TOBA, Kenji MITSUMOTO, Daisuke TAKEDA
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Patent number: 12237681Abstract: A startup method and startup program for microgrid that enable to stably start up the microgrid without producing frequency fluctuation is provided. An embodiment of the present disclosure is a startup method for microgrid configured by a plurality of inverter power supplies independently sharing a load and divided into a master that starts up first and a slave that starts up secondly and later, the startup method comprising: a master initial startup step of initially starting up the master in a CVCF mode; a slave initial startup step of initially starting up the slave in a grid interconnection mode; and a control mode changing step of the master and the slave changing control modes thereof when output fluctuation of the master and the slave becomes a predetermined threshold or less or when the master and the slave or other inverter power supplies become a predetermined operation state while output voltage of said master and said slave becomes a predetermined threshold or less.Type: GrantFiled: February 19, 2021Date of Patent: February 25, 2025Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions CorporationInventors: Yoko Sakauchi, Yukina Akiyama, Yuki Kudo, Shunsuke Kawachi, Koji Toba
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Patent number: 12227011Abstract: A print material storage container has: a substrate on which an electric circuit having terminals is provided; a fixing portion on which the substrate can be mounted by re-fixing; and a fixing member that fixes the fixing portion and a non-terminal portion, which is formed by excluding the terminals from the substrate, to each other. The non-terminal portion includes a re-fixed portion, which can be re-fixed to the fixing portion by the fixing member.Type: GrantFiled: January 3, 2024Date of Patent: February 18, 2025Assignee: SEIKO EPSON CORPORATIONInventors: Koji Kudo, Noriyuki Fukasawa, Hiroyuki Kawate
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Publication number: 20250047214Abstract: A power conversion device is disclosed in which a first command to change amplitude and phase of AC-power by grid forming control (GFM) is generated. A second command to change amplitude and phase of the AC-power by grid following control (GFL) is generated. A modulation circuit changes amplitude and phase of the AC-power in response to the first or second command. The first command is corrected before input to the modulation circuit is switched from the second command to the first command such that a difference between target amplitude of the first command and amplitude of a given grid voltage becomes a threshold or smaller, a difference between target frequency of the first command and frequency of the grid voltage becomes a threshold or smaller, and a difference between target phase of the first command and phase of the grid voltage becomes a threshold or smaller.Type: ApplicationFiled: December 15, 2021Publication date: February 6, 2025Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Yukina AKIYAMA, Shunsuke KAWACHI, Yuki KUDO, Yoko SAKAUCHI, Koji TOBA, Kenji MITSUMOTO, Daisuke TAKEDA
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Patent number: 12214833Abstract: A steer-by-wire steering system for a vehicle, comprising: an operation member operable by a vehicle driver; an urging device configured to generate an urging force to urge the operation member; a steering device configured to steer a wheel; and a controller configured to control the urging device and the steering device. In a normal operation, the controller enables the wheel to be steered in accordance with an operation of the operation member and causes the urging force to function as an operation reaction force against the operation of the operation member. In an automatic steering operation in which the wheel is steered without depending on the operation of the operation member, the controller enables the operation member to be moved in accordance with steering of the wheel by the urging force and causes at least part of the urging force generated in the normal operation not to be generated.Type: GrantFiled: August 23, 2022Date of Patent: February 4, 2025Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, JTEKT CORPORATIONInventors: Kosuke Akatsuka, Yoshio Kudo, Takahito Ishino, Kenji Yoshida, Koji Anraku
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Patent number: 12122164Abstract: A liquid container refillable with liquid to be supplied to a printer includes a bag; a liquid supplying port member having a liquid supplying port; a liquid supply flow passage provided inside the liquid supplying port member; a liquid filling flow passage branching off from the liquid supply flow passage; and a communication port provided inside the liquid supplying port member and being in communication with the liquid filling flow passage and facing an internal surface of the bag. The bag is fixed to the liquid supplying port member such that a gap is formed between the bag and the peripheral portion of the communication port due to a flow of the liquid from the liquid supply flow passage to the liquid filling flow passage, the gap being in communication with the liquid containing portion through the communication port.Type: GrantFiled: July 20, 2022Date of Patent: October 22, 2024Assignee: SEIKO EPSON CORPORATIONInventors: Koji Kudo, Noriyuki Fukasawa, Hiroyuki Kawate
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Publication number: 20240190608Abstract: A liquid replenishment container includes a liquid accommodation section configured to accommodate a liquid, a pouring section coupled to the liquid accommodation section and having an outlet port for pouring the liquid, and a cap section mounted on the pouring section and covering the outlet port, in which the liquid accommodation section includes a main section formed of metal, and at least one of the liquid accommodation section and the pouring section includes a viewing section formed of a transparent or translucent member.Type: ApplicationFiled: December 6, 2023Publication date: June 13, 2024Applicant: SEIKO EPSON CORPORATIONInventor: Koji KUDO
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Publication number: 20240131851Abstract: A print material storage container has: a substrate on which an electric circuit having terminals is provided; a fixing portion on which the substrate can be mounted by re-fixing; and a fixing member that fixes the fixing portion and a non-terminal portion, which is formed by excluding the terminals from the substrate, to each other. The non-terminal portion includes a re-fixed portion, which can be re-fixed to the fixing portion by the fixing member.Type: ApplicationFiled: January 3, 2024Publication date: April 25, 2024Applicant: SEIKO EPSON CORPORATIONInventors: Koji Kudo, Noriyuki Fukasawa, Hiroyuki Kawate
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Patent number: 11897269Abstract: A print material storage container has: a substrate on which an electric circuit having terminals is provided; a fixing portion on which the substrate can be mounted by re-fixing; and a fixing member that fixes the fixing portion and a non-terminal portion, which is formed by excluding the terminals from the substrate, to each other. The non-terminal portion includes a re-fixed portion, which can be re-fixed to the fixing portion by the fixing member.Type: GrantFiled: March 4, 2022Date of Patent: February 13, 2024Assignee: SEIKO EPSON CORPORATIONInventors: Koji Kudo, Noriyuki Fukasawa, Hiroyuki Kawate
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Publication number: 20230319175Abstract: An in-vehicle hands-free device includes a memory, and a hardware processor coupled to the memory. The hardware processor is configured to: connect to a mobile phone; acquire incoming call history data of the mobile phone connected by the hardware processor; detect a traveling state of a vehicle on which the in-vehicle hands-free device is mounted; and when accepting a request to output the incoming call history data, output the incoming call history data by voice when detecting that the vehicle is traveling, and output the incoming call history data by display when detecting that the vehicle is not traveling.Type: ApplicationFiled: January 25, 2023Publication date: October 5, 2023Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yuto KODANI, Koji KUDO, Keiji MIURA, Takanori MATSUMOTO, Mikako YAMAGUCHI
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Patent number: 11607888Abstract: A liquid ejecting apparatus includes an attachment section to which a liquid storage container having a storage chamber storing a liquid and a communication path communicating with the storage chamber is attached, and a liquid ejecting head configured to eject the liquid from nozzles. The attachment section includes an inlet through which the liquid from the attached liquid storage container flows, a protrusion having a connection port, a seal provided around the protrusion, and an air communication path communicating with the connection port and an air communication port that communicates with the air. The connection port enters the communication path of the attached liquid storage container, and the seal comes into contact with the liquid storage container attached to the attachment section.Type: GrantFiled: September 27, 2021Date of Patent: March 21, 2023Assignee: SEIKO EPSON CORPORATIONInventor: Koji Kudo
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Publication number: 20230028547Abstract: A liquid container refillable with liquid to be supplied to a printer includes a bag; a liquid supplying port member having a liquid supplying port; a liquid supply flow passage provided inside the liquid supplying port member; a liquid filling flow passage branching off from the liquid supply flow passage; and a communication port provided inside the liquid supplying port member and being in communication with the liquid filling flow passage and facing an internal surface of the bag. The bag is fixed to the liquid supplying port member such that a gap is formed between the bag and the peripheral portion of the communication port due to a flow of the liquid from the liquid supply flow passage to the liquid filling flow passage, the gap being in communication with the liquid containing portion through the communication port.Type: ApplicationFiled: July 20, 2022Publication date: January 26, 2023Applicant: SEIKO EPSON CORPORATIONInventors: Koji KUDO, Noriyuki FUKASAWA, Hiroyuki KAWATE
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Publication number: 20230006442Abstract: A control device is provided with: a power transfer control means that controls power transfer to and from a DC distribution network; and an exchange means that exchanges, with respect to transfer power to and from the DC distribution network, information indicating an attribute based on a power generation scheme.Type: ApplicationFiled: December 3, 2020Publication date: January 5, 2023Applicant: NEC CorporationInventor: Koji Kudo
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Publication number: 20220416547Abstract: A service management device is provided with a classification processing means that classifies and calculates, for each of a plurality of power supply apparatuses, details of input/output power in a service carried out using at least one of the power supply apparatuses; and a service recording means that records, for each classification performed by the classification processing means, details of an amount of power input/output as a result of execution of the service.Type: ApplicationFiled: December 7, 2020Publication date: December 29, 2022Applicant: NEC CorporationInventor: Koji KUDO
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Publication number: 20220281226Abstract: A print material storage container has: a substrate on which an electric circuit having terminals is provided; a fixing portion on which the substrate can be mounted by re-fixing; and a fixing member that fixes the fixing portion and a non-terminal portion, which is formed by excluding the terminals from the substrate, to each other. The non-terminal portion includes a re-fixed portion, which can be re-fixed to the fixing portion by the fixing member.Type: ApplicationFiled: March 4, 2022Publication date: September 8, 2022Applicant: SEIKO EPSON CORPORATIONInventors: Koji KUDO, Noriyuki FUKASAWA, Hiroyuki KAWATE
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Publication number: 20220097396Abstract: A liquid ejecting apparatus includes an attachment section to which a liquid storage container having a storage chamber storing a liquid and a communication path communicating with the storage chamber is attached, and a liquid ejecting head configured to eject the liquid from nozzles. The attachment section includes an inlet through which the liquid from the attached liquid storage container flows, a protrusion having a connection port, a seal provided around the protrusion, and an air communication path communicating with the connection port and an air communication port that communicates with the air. The connection port enters the communication path of the attached liquid storage container, and the seal comes into contact with the liquid storage container attached to the attachment section.Type: ApplicationFiled: September 27, 2021Publication date: March 31, 2022Applicant: SEIKO EPSON CORPORATIONInventor: Koji KUDO
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Publication number: 20220025530Abstract: A laminate containing: an electrode for electrolysis; and a membrane, wherein the electrode for electrolysis has one or a plurality of protrusions on a surface opposed to the membrane, and the protrusion(s) satisfies/satisfy the following conditions (i) to (iii): 0.04?Sa/Sall?0.55??(i) 0.010 mm2?Save?10.0 mm2??(ii) 1<(h+t)/t?10??(iii) wherein, in the (i), Sa represents the total area of the protrusion(s) in an observed image obtained by observing the opposed surface under an optical microscope, Sall represents the area of the opposed surface in the observed image, in the (ii), Save represents the average area of the protrusion(s) in the observed image, and in the (iii), h represents the height of the protrusion(s), and t represents the thickness of the electrode for electrolysis.Type: ApplicationFiled: September 20, 2019Publication date: January 27, 2022Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Akiyasu FUNAKAWA, Koji KUDO, Yoshifumi KADO
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Patent number: 11002773Abstract: Provided is a monitoring apparatus including an acquisition unit that acquires first time-series data which is time-series data of a measured value and/or a feature amount regarding an electrical device group, and a registration and updating unit that, when a difference in values between a pre-state-change data value which is any one of a data value at a first point in time in the first time-series data and a statistic of a plurality of data values from a point in time earlier than the first point in time by a predetermined period of time to the first point in time and a post-state-change data value which is any one of a data value at a second point in time later than the first point in time and a statistic of a plurality of data values from the second point in time to a point in time later than the second point in time by a predetermined period of time satisfies a predetermined condition, stores a feature amount extracted from any waveform data of a total current consumption, a total power consumption, and aType: GrantFiled: July 7, 2014Date of Patent: May 11, 2021Assignee: NEC CORPORATIONInventors: Takahiro Toizumi, Eisuke Saneyoshi, Koji Kudo, Hitoshi Yano, Ryo Hashimoto, Yuma Iwasaki, Hisato Sakuma