Patents by Inventor Masaki Uchiyama
Masaki Uchiyama 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: 20240094308Abstract: A detector includes a measurement unit and a battery control unit. The measurement unit measures a measurement value indicating a battery state of a secondary battery. The battery control unit detects a sign of thermal runway in the secondary battery. The measurement unit determines whether a start-up signal is output based on the measurement value in a case where the battery control unit is in a sleep state, and outputs the start-up signal in a case where the start-up signal is output. The battery control unit starts by receiving the start-up signal from the measurement unit when the battery control unit is in the sleep state, executes arithmetic processing on the measurement value received from the measurement unit, and detects the sign of thermal runaway based on a calculated result of the arithmetic processing.Type: ApplicationFiled: September 11, 2023Publication date: March 21, 2024Inventors: Shuhei YOSHIDA, Masaki UCHIYAMA, Hiroki FUJII
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Publication number: 20240030723Abstract: An equalization device performs equalization of amounts of charge of cell batteries in a battery pack. The device includes a state determination unit that determines whether it is in a predetermined charging state that includes at least one of a state in which the battery pack is subjected to constant current charge and a state in which the battery pack is subjected to constant power charge and does not include a state in which the battery pack is subjected to constant voltage charge, a charging time variation determination unit that determines whether a variation voltage indicating variation of a voltage of each of the cell batteries is higher than a predetermined charging time determination voltage, and a charging time equalization unit that performs the equalization if it is determined that it is in the predetermined charging state and that the variation voltage is higher than the charging time determination voltage.Type: ApplicationFiled: October 2, 2023Publication date: January 25, 2024Applicant: DENSO CORPORATIONInventors: Taisuke KURACHI, Masaki UCHIYAMA
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Patent number: 11858278Abstract: A liquid ejecting apparatus includes a liquid supplying apparatus. The liquid supplying apparatus includes a supply flow passage that is in communication with a liquid ejecting head configured to eject liquid, a first supply flow passage for communication between a first liquid container and the supply flow passage, the first liquid container containing liquid, and a second supply flow passage for communication between a second liquid container and the supply flow passage, the second liquid container containing the same kind of liquid as the liquid contained in the first liquid container, a switching unit configured to switch a flow passage that is in communication with the supply flow passage, between the first supply flow passage and the second supply flow passage, and a movement restriction unit configured to, linked with switching by the switching unit, restrict movement of the first liquid container and the second liquid container selectively.Type: GrantFiled: May 17, 2022Date of Patent: January 2, 2024Assignee: Seiko Epson CorporationInventors: Eri Tanaka, Kazuyuki Fujioka, Masaki Uchiyama
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Patent number: 11820146Abstract: A waste liquid container includes an accommodation chamber including an opening that is open upward of the waste liquid container in a mounted state where the waste liquid container is mounted in the mounting portion, the accommodation chamber being configured to accommodate the liquid, and a contact portion provided at a surface that intersect with a bottom surface and an upper surface of the waste liquid container, the contact portion being configured to contact a horizontal plane and set a posture of the accommodation chamber with respect to the horizontal plane in a placement state where the waste liquid container is placed at the horizontal plane with the surface facing downward, wherein in the placement state, an inner surface is in an inclined state where the bottom surface is lower than the upper surface, the inner surface serving as a lower surface of the accommodation chamber.Type: GrantFiled: September 2, 2021Date of Patent: November 21, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Masaki Uchiyama, Toshio Nakata
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Publication number: 20230333173Abstract: A battery monitoring apparatus is provided for a secondary battery that produces a change in reaction heat at a predetermined capacity when a storage capacity changes in accompaniment with a current conduction. The battery monitoring apparatus includes: an acquiring unit that acquires, during the current conduction, an impedance change of the secondary battery; and a capacity determination unit that determines, based on the impedance change acquired by the acquiring unit, that the storage capacity of the secondary battery is the predetermined capacity.Type: ApplicationFiled: June 20, 2023Publication date: October 19, 2023Applicant: DENSO CORPORATIONInventors: Yuuki HORI, Masaki UCHIYAMA
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Publication number: 20230324471Abstract: A control device includes a diagnosis unit configured to diagnose a deterioration state of a secondary battery. The diagnosis unit includes: a resistance calculator configured to calculate a direct current resistance and a reaction resistance of impedance components based on an impedance measurement result of the secondary battery; an index value calculator configured to calculate an index value related to the direct current resistance and the reaction resistance; and a deterioration determination unit configured to compare the index value with a determination threshold based on an impedance characteristic at the time of normal deterioration of the secondary battery so as to determine whether a specific deterioration occurs due to charge and discharge of the secondary battery.Type: ApplicationFiled: June 14, 2023Publication date: October 12, 2023Inventors: Hisashi UMEMOTO, Yuji YAMAGAMI, Shuhei YOSHIDA, Masaki UCHIYAMA
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Publication number: 20230086550Abstract: The present disclosure includes an inverter connected to a power supply unit via a positive electrode side electrical path and a negative electrode side electrical path and including switching elements, a rotary electric machine including windings connected to each other at a neutral point and inputting and outputting power from and to the power supply unit via the inverter, a connection path electrically connecting an intermediate point between the storage batteries of the power supply unit to the neutral point of the windings, and a device including a first terminal and a second terminal enabling energization between the power supply unit and the device. The first terminal is connected to the connection path, and the second terminal is connected to at least one of the positive electrode side electrical path and the negative electrode side electrical path.Type: ApplicationFiled: November 28, 2022Publication date: March 23, 2023Applicant: DENSO CORPORATIONInventors: Masaki UCHIYAMA, Daisuke KURODA, Atsushi FUKAYA, Keiya TANI
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Publication number: 20230062095Abstract: A battery management system includes a monitoring device and a controller. The monitoring device is arranged in a housing accommodating a battery, monitors the battery and acquires battery monitoring information that includes information indicating a state of the battery. The controller performs wireless communication with the monitoring device and execute a predetermined process based on the battery monitoring information. The controller transmits a request for battery monitoring information to the monitoring device. The monitoring device transmits the battery monitoring information to the controller in response to the request. The controller determines whether missing of the battery monitoring information has occurred based on a correlation between the battery monitoring information acquired from the monitoring device via wireless communication and relationship information held by the controller related to the battery monitoring information.Type: ApplicationFiled: August 26, 2022Publication date: March 2, 2023Inventors: TAKUYA OHATA, SHOGO SHIGEMORI, TATSUHIRO NUMATA, TETSUYA WATANABE, MASAKI UCHIYAMA, TAISUKE KURACHI
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Publication number: 20230060600Abstract: A monitoring system includes monitoring devices provided in a monitored device and monitoring the monitored device, and a controller that wirelessly communicates with the monitoring devices to acquire monitoring information of the monitored device from the monitoring devices. The monitored device is switchable between an operating state and a non-operating state. In the non-operating state of the monitored device, the monitoring devices establish communication connections in which at least one of the monitoring devices acts as a communication master and others of the monitoring devices act as communication slaves for the communication master. In the non-operating state of the monitored device, the controller does not act as a communication master for the monitoring devices.Type: ApplicationFiled: August 26, 2022Publication date: March 2, 2023Inventors: SHOGO SHIGEMORI, TATSUHIRO NUMATA, TETSUYA WATANABE, MASAKI UCHIYAMA, TAISUKE KURACHI
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Publication number: 20230068288Abstract: A battery management system includes a monitoring device and a controller. The monitoring device is arranged in a housing accommodating a battery. The monitoring device monitors the battery and acquires battery monitoring information that includes information indicating a state of the battery. The controller performs wireless communication with the monitoring device and executes a predetermined process based on the battery monitoring information. The monitoring device holds imperfect information that is battery monitoring information indicating failure of data transmission/reception between the monitoring device and the controller. The monitoring device retransmits information corresponding to the imperfect information from next time the battery monitoring information is transmitted.Type: ApplicationFiled: August 26, 2022Publication date: March 2, 2023Inventors: Takuma NAKAGAWA, Shogo SHIGEMORI, Tatsuhiro NUMATA, Tetsuya WATANABE, Masaki UCHIYAMA, Taisuke KURACHI
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Publication number: 20230016310Abstract: An attachment structure includes expansion valves used in a vehicle, and a housing to which the expansion valves are attached. The housing includes a flow path through which heat medium circulating in a heat pump cycle of an air conditioner of the vehicle flows, and the flow path is opened and closed by the expansion valves.Type: ApplicationFiled: September 28, 2022Publication date: January 19, 2023Inventors: Yuki SUGIYAMA, Masakazu MORIMOTO, Yasuhiro MIZUNO, Masaki UCHIYAMA
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Publication number: 20220373602Abstract: In a battery measurement apparatus, a signal control unit, provided on a first electrical path connecting electrodes of a storage battery, causes the storage battery to output a predetermined alternating-current signal or inputs a predetermined alternating-current signal to the storage battery. A response signal input unit, provided on a second electrical path connecting the electrodes, inputs a response signal of the storage battery in response to the alternating-current signal through the second electrical path. Based on the response signal, a calculating unit calculates information related to a complex impedance of the storage battery. A magnetic flux passage area, surrounded by the storage battery and the second electrical path, is formed. A size of the magnetic flux passage area is set such that an error between an actual complex impedance of the storage battery and a complex impedance calculated by the calculating unit is within a range of ±1 m?.Type: ApplicationFiled: July 20, 2022Publication date: November 24, 2022Applicant: DENSO CORPORATIONInventors: Masaaki KITAGAWA, Kazuo MATSUKAWA, Yuji YAMAGAMI, Masaki UCHIYAMA
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Publication number: 20220371329Abstract: A liquid ejecting apparatus includes a liquid supplying apparatus. The liquid supplying apparatus includes a supply flow passage that is in communication with a liquid ejecting head configured to eject liquid, a first supply flow passage for communication between a first liquid container and the supply flow passage, the first liquid container containing liquid, and a second supply flow passage for communication between a second liquid container and the supply flow passage, the second liquid container containing the same kind of liquid as the liquid contained in the first liquid container, a switching unit configured to switch a flow passage that is in communication with the supply flow passage, between the first supply flow passage and the second supply flow passage, and a movement restriction unit configured to, linked with switching by the switching unit, restrict movement of the first liquid container and the second liquid container selectively.Type: ApplicationFiled: May 17, 2022Publication date: November 24, 2022Inventors: Eri TANAKA, Kazuyuki FUJIOKA, Masaki UCHIYAMA
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Patent number: 11498420Abstract: A vehicle includes a battery that is mounted as a power source in the vehicle and an instrument panel that displays, to a user of the vehicle, an index (a capacity retention ratio Q or an electric vehicle (EV) travelable distance) indicating a larger value as deterioration of the battery progresses less. The instrument panel displays a maximum value of the index until a predetermined condition has been satisfied.Type: GrantFiled: September 11, 2019Date of Patent: November 15, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuki Kubo, Yoshihiro Uchida, Junta Izumi, Masaki Uchiyama
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Patent number: 11453310Abstract: A display device includes: a display unit configured to display an index corresponding to a deterioration state of a secondary battery and an EV travelable distance; and a control unit configured to control display of the display unit such that a first decreasing amount by which the EV travelable distance displayed on the display unit decreases with the elapse of time until a predetermined condition has been satisfied is less than a second decreasing amount by which the EV travelable distance displayed on the display unit decreases with the elapse of time after the predetermined condition has been satisfied.Type: GrantFiled: September 13, 2019Date of Patent: September 27, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuki Kubo, Junta Izumi, Yoshihiro Uchida, Masaki Uchiyama
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Patent number: 11374270Abstract: A vehicle includes a secondary battery and a display device. The secondary battery is mounted on the vehicle as a power source. The display device is configured to display an indicator that indicates a capacity retention rate of the secondary battery at a current point in time. The capacity retention rate is a ratio of a capacity of the secondary battery at the current point in time to a reference capacity of the secondary battery. The reference capacity is set in advance based on a virtual capacity of the secondary battery after a lapse of a predetermined period from manufacture of the vehicle.Type: GrantFiled: August 5, 2019Date of Patent: June 28, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuki Kubo, Yoshihiro Uchida, Junta Izumi, Masaki Uchiyama
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Publication number: 20220194167Abstract: A plurality of components of a refrigeration cycle are connected to a connection module. The connection module includes a body having a refrigerant flow path that constitutes a part of a refrigerant flow path in the refrigeration cycle. The refrigerant flow path includes a high-temperature-side flow path and a low-temperature-side flow path. The high-temperature-side flow path has a connection port to which a high-temperature-side component of the plurality of components, through which a high-pressure refrigerant of the refrigeration cycle flows, is connectable. The low-temperature-side flow path has a connection port to which a low-temperature-side component of the plurality of components, through which a refrigerant having a lower temperature than the high-pressure refrigerant flows, is connectable.Type: ApplicationFiled: March 10, 2022Publication date: June 23, 2022Inventors: Masakazu MORIMOTO, Yasuhiro MIZUNO, Masaki UCHIYAMA, Yuki SUGIYAMA
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Patent number: 11353514Abstract: An ECU sets a SOC estimated from an OCV at the time of activating a system of a vehicle as an initial SOC value in the case where the SOC during a stop of the system is higher than a first SOC, which represents the SOC estimated from the OCV at the time of activating the system by using a discharging curve line, or the SOC during the stop of the system is lower than a second SOC, which represents the SOC estimated from the OCV at the time of activating the system by using a charging curve line. The ECU sets the SOC during the stop of the system as the initial SOC value in the case where the SOC during the stop of the system is equal to or lower than the first SOC and is equal to or higher than the second SOC.Type: GrantFiled: December 27, 2019Date of Patent: June 7, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihiro Uchida, Kiyohito Machida, Yuki Moriya, Nobuyuki Tanaka, Kazuki Kubo, Masaki Uchiyama
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Patent number: 11305668Abstract: A controller performs processing including estimating a current degree of deterioration based on battery use history data when it is determined that deterioration diagnosis timing has come, setting a deterioration curve, setting a deterioration straight line, obtaining an elapsed time, obtaining a capacity retention based on the elapsed time and the deterioration straight line, updating representation of the capacity retention on an output unit, and showing an initial value as the capacity retention when it is determined that the deterioration straight line has not been set.Type: GrantFiled: October 18, 2019Date of Patent: April 19, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuki Kubo, Yoshihiro Uchida, Junta Izumi, Masaki Uchiyama
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Publication number: 20220080737Abstract: A waste liquid container includes an accommodation chamber including an opening that is open upward of the waste liquid container in a mounted state where the waste liquid container is mounted in the mounting portion, the accommodation chamber being configured to accommodate the liquid, and a contact portion provided at a surface that intersect with a bottom surface and an upper surface of the waste liquid container, the contact portion being configured to contact a horizontal plane and set a posture of the accommodation chamber with respect to the horizontal plane in a placement state where the waste liquid container is placed at the horizontal plane with the surface facing downward, wherein in the placement state, an inner surface is in an inclined state where the bottom surface is lower than the upper surface, the inner surface serving as a lower surface of the accommodation chamber.Type: ApplicationFiled: September 2, 2021Publication date: March 17, 2022Inventors: Masaki UCHIYAMA, Toshio NAKATA