Patents by Inventor GOROU MORI
GOROU MORI 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: 20230266395Abstract: A voltage detection circuit includes a first terminal for connecting to one end of a first voltage detection line through a first resistor, the first voltage detection line having another end connected to a cathode or an anode of a first individual battery; a second terminal for connecting to the one end of the first voltage detection line without the first resistor; a first current generating circuit connected to the first terminal; and a voltage detector which detects a voltage of the first terminal and a voltage of the second terminal. The voltage detector includes at least one first AD converter connected to the first terminal, and at least one second AD converter connected to the second terminal.Type: ApplicationFiled: February 22, 2023Publication date: August 24, 2023Inventors: Fumihito INUKAI, Gorou MORI
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Patent number: 11604226Abstract: A voltage detection circuit includes a first terminal for connecting to one end of a first voltage detection line through a first resistor, the first voltage detection line having another end connected to a cathode or an anode of a first individual battery; a second terminal for connecting to the one end of the first voltage detection line without the first resistor; a first current generating circuit connected to the first terminal; and a voltage detector which detects a voltage of the first terminal and a voltage of the second terminal. The voltage detector includes at least one first AD converter connected to the first terminal, and at least one second AD converter connected to the second terminal.Type: GrantFiled: March 6, 2018Date of Patent: March 14, 2023Assignee: NUVOTON TECHNOLOGY CORPORATION JAPANInventors: Fumihito Inukai, Gorou Mori
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Patent number: 11513163Abstract: A voltage detection circuit is provided for measuring each cell voltage of an assembled battery configured by connecting a plurality of cells in series. The voltage detection circuit is defined as a first voltage detection circuit. The voltage detection circuit includes a downstream communication circuit that communicates with a host apparatus to communicate with a plurality of voltage detection circuits connected in series with each other; a reply signal generation circuit that generates a reply signal containing data detected by the first voltage detection circuit; an upstream transfer circuit that transfers a signal received by the upstream communication circuit to downstream; a dummy current consumption circuit that consumes a predetermined dummy current; and a control circuit that controls the reply signal generation circuit, the upstream transfer circuit, and the dummy current consumption circuit to selectively operate any one of them.Type: GrantFiled: August 28, 2018Date of Patent: November 29, 2022Assignees: NUVOTON TECHNOLOGY CORPORATION JAPAN, NUVUTON TECHNOLOGY SINGAPORE PTE. LTD.Inventors: Naohisa Hatani, Gorou Mori
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Patent number: 11313886Abstract: A voltage detection circuit measures a plurality of cell voltages of an assembled battery configured by connecting a plurality of cells in series. The voltage detection circuit includes a plurality of input terminals connected to respective electrodes of the plurality of cells through a plurality of voltage detection lines; a multiplexer that periodically selects and outputs voltages of a plurality of cells in a group, a plurality of series cells configured as the group; an analog-to-digital (AD) converter that AD-converts an output voltage from the multiplexer and outputs digital data of the output voltage; and a control circuit that controls a timing for the selection by the multiplexer and a timing for the AD conversion. The control circuit switches over a time interval for which the multiplexer selects each of the cells to change a period of the AD conversion.Type: GrantFiled: August 28, 2018Date of Patent: April 26, 2022Assignee: NUVOTON TECHNOLOGY CORPORATION JAPANInventors: Naohisa Hatani, Yosuke Goto, Fumihito Inukai, Gorou Mori
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Publication number: 20210156927Abstract: A voltage detection circuit is provided for measuring each cell voltage of an assembled battery configured by connecting a plurality of cells in series. The voltage detection circuit is defined as a first voltage detection circuit. The voltage detection circuit includes a downstream communication circuit that communicates with a host apparatus to communicate with a plurality of voltage detection circuits connected in series with each other; a reply signal generation circuit that generates a reply signal containing data detected by the first voltage detection circuit; an upstream transfer circuit that transfers a signal received by the upstream communication circuit to downstream; a dummy current consumption circuit that consumes a predetermined dummy current; and a control circuit that controls the reply signal generation circuit, the upstream transfer circuit, and the dummy current consumption circuit to selectively operate any one of them.Type: ApplicationFiled: August 28, 2018Publication date: May 27, 2021Inventors: Naohisa HATANI, Gorou MORI
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Publication number: 20200408814Abstract: A voltage detection circuit measures a plurality of cell voltages of an assembled battery configured by connecting a plurality of cells in series. The voltage detection circuit includes a plurality of input terminals connected to respective electrodes of the plurality of cells through a plurality of voltage detection lines; a multiplexer that periodically selects and outputs voltages of a plurality of cells in a group, a plurality of series cells configured as the group; an analog-to-digital (AD) converter that AD-converts an output voltage from the multiplexer and outputs digital data of the output voltage; and a control circuit that controls a timing for the selection by the multiplexer and a timing for the AD conversion. The control circuit switches over a time interval for which the multiplexer selects each of the cells to change a period of the AD conversion.Type: ApplicationFiled: August 28, 2018Publication date: December 31, 2020Inventors: Naohisa HATANI, Yosuke GOTO, Fumihito INUKAI, Gorou MORI
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Patent number: 10581124Abstract: A battery assembly controller controls terminal voltages of a plurality of series-connected secondary batteries to be equal. The controller includes a discharge circuit selectively reducing the terminal voltages of the secondary batteries; and a monitoring circuit directly connected to positive and negative electrodes of the secondary batteries to monitor the terminal voltages of the secondary batteries.Type: GrantFiled: December 19, 2018Date of Patent: March 3, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Junji Nakatsuka, Gorou Mori
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Patent number: 10397668Abstract: A plurality of batteries connected in series are monitored by a plurality of monitor devices, respectively. The monitor devices are connected in series to communicate under the daisy chain communication system. The daisy chain communication system includes a micro-control unit for producing a binary signal, a communication device for converting the binary signal to a pulsating signal. The communication device produces a special code based on an instructions from the micro-control unit. Each monitor device changes between a communication OFF state and a communication ON state. Each monitor device has a signal detector which operates during the communication OFF state and detects the special code, whereby upon detection of the special code, the signal detector generates a wakeup signal so that the monitor device is changed from the communication OFF state to communication ON state.Type: GrantFiled: July 6, 2015Date of Patent: August 27, 2019Assignees: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., PANASONIC ASIA PACIFIC PTE. LTD.Inventors: Hong Meng Tang, Chung Kiong Leslie Khoo, Tien Yew Kang, Muhammad s/o Abuturab, Narciso Repollo Semira, Gorou Mori
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Publication number: 20190123397Abstract: A battery assembly controller controls terminal voltages of a plurality of series-connected secondary batteries to be equal. The controller includes a discharge circuit selectively reducing the terminal voltages of the secondary batteries; and a monitoring circuit directly connected to positive and negative electrodes of the secondary batteries to monitor the terminal voltages of the secondary batteries.Type: ApplicationFiled: December 19, 2018Publication date: April 25, 2019Inventors: Junji NAKATSUKA, Gorou MORI
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Patent number: 10193194Abstract: A battery assembly controller controls terminal voltages of a plurality of series-connected secondary batteries to be equal. The controller includes a discharge circuit selectively reducing the terminal voltages of the secondary batteries; and a monitoring circuit directly connected to positive and negative electrodes of the secondary batteries to monitor the terminal voltages of the secondary batteries.Type: GrantFiled: February 22, 2016Date of Patent: January 29, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Junji Nakatsuka, Gorou Mori
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Patent number: 10067196Abstract: A voltage measuring apparatus is configured to measure voltages of respective battery cells of a battery cell array including a plurality of battery cell groups each including a predetermined number of battery cells connected in series. The voltage measuring apparatus includes a plurality of measuring units each provided for each of the battery cell groups. The adjacent measuring units are connected through a communication channel so as to perform current communication therebetween. A bidirectional diode circuit element is connected to the communication channel extending between the adjacent measuring units.Type: GrantFiled: September 22, 2017Date of Patent: September 4, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Akira Kawabe, Gorou Mori
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Publication number: 20180196105Abstract: A voltage detection circuit includes a first terminal for connecting to one end of a first voltage detection line through a first resistor, the first voltage detection line having another end connected to a cathode or an anode of a first individual battery; a second terminal for connecting to the one end of the first voltage detection line without the first resistor; a first current generating circuit connected to the first terminal; and a voltage detector which detects a voltage of the first terminal and a voltage of the second terminal. The voltage detector includes at least one first AD converter connected to the first terminal, and at least one second AD converter connected to the second terminal.Type: ApplicationFiled: March 6, 2018Publication date: July 12, 2018Inventors: Fumihito INUKAI, Gorou MORI
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Patent number: 9960619Abstract: A battery device includes: a secondary battery; a charger; a first transistor configured to control conduction between the secondary battery and a load; a second transistor configured to control conduction between the charger and the secondary battery; diodes of which cathodes are connected to each other and that are connected between the secondary battery and the charger; a capacitor configured to accumulate charge to be transferred to the gate of the first transistor; a capacitor configured to accumulate charge to be transferred to the gate of the second transistor; and a battery control device configured to control charging/discharging of the secondary battery.Type: GrantFiled: February 6, 2015Date of Patent: May 1, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Gorou Mori, Fumihito Inukai, Toshinobu Nagasawa
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Publication number: 20180011147Abstract: A voltage measuring apparatus is configured to measure voltages of respective battery cells of a battery cell array including a plurality of battery cell groups each including a predetermined number of battery cells connected in series. The voltage measuring apparatus includes a plurality of measuring units each provided for each of the battery cell groups. The adjacent measuring units are connected through a communication channel so as to perform current communication therebetween. A bidirectional diode circuit element is connected to the communication channel extending between the adjacent measuring units.Type: ApplicationFiled: September 22, 2017Publication date: January 11, 2018Inventors: Akira KAWABE, Gorou MORI
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Patent number: 9804229Abstract: A voltage measuring apparatus is configured to measure voltages of respective battery cells of a battery cell array including a plurality of battery cell groups each including a predetermined number of battery cells connected in series. The voltage measuring apparatus includes a plurality of measuring units each provided for each of the battery cell groups. The adjacent measuring units are connected through a communication channel so as to perform current communication therebetween. A bidirectional diode circuit element is connected to the communication channel extending between the adjacent measuring units.Type: GrantFiled: April 6, 2017Date of Patent: October 31, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akira Kawabe, Gorou Mori
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Patent number: 9804228Abstract: A voltage measuring apparatus is configured to measure voltages of respective battery cells of a battery cell array including a plurality of battery cell groups each including a predetermined number of battery cells connected in series. The voltage measuring apparatus includes a plurality of measuring units each provided for each of the battery cell groups. The adjacent measuring units are connected through a communication channel so as to perform current communication therebetween. A bidirectional diode circuit element is connected to the communication channel extending between the adjacent measuring units.Type: GrantFiled: April 6, 2017Date of Patent: October 31, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akira Kawabe, Gorou Mori
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Publication number: 20170212172Abstract: A voltage measuring apparatus is configured to measure voltages of respective battery cells of a battery cell array including a plurality of battery cell groups each including a predetermined number of battery cells connected in series. The voltage measuring apparatus includes a plurality of measuring units each provided for each of the battery cell groups. The adjacent measuring units are connected through a communication channel so as to perform current communication therebetween. A bidirectional diode circuit element is connected to the communication channel extending between the adjacent measuring units.Type: ApplicationFiled: April 6, 2017Publication date: July 27, 2017Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Akira KAWABE, Gorou MORI
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Publication number: 20170212173Abstract: A voltage measuring apparatus is configured to measure voltages of respective battery cells of a battery cell array including a plurality of battery cell groups each including a predetermined number of battery cells connected in series. The voltage measuring apparatus includes a plurality of measuring units each provided for each of the battery cell groups. The adjacent measuring units are connected through a communication channel so as to perform current communication therebetween. A bidirectional diode circuit element is connected to the communication channel extending between the adjacent measuring units.Type: ApplicationFiled: April 6, 2017Publication date: July 27, 2017Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Akira KAWABE, Gorou MORI
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Patent number: 9645199Abstract: A voltage measuring apparatus is configured to measure voltages of respective battery cells of a battery cell array including a plurality of battery cell groups each including a predetermined number of battery cells connected in series. The voltage measuring apparatus includes a plurality of measuring units each provided for each of the battery cell groups. The adjacent measuring units are connected through a communication channel so as to perform current communication therebetween. A bidirectional diode circuit element is connected to the communication channel extending between the adjacent measuring units.Type: GrantFiled: June 8, 2016Date of Patent: May 9, 2017Assignee: PANASONIC INTEELECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akira Kawabe, Gorou Mori
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Publication number: 20170010329Abstract: A plurality of batteries connected in series are monitored by a plurality of monitor devices, respectively. The monitor devices are connected in series to communicate under the daisy chain communication system. The daisy chain communication system includes a micro-control unit for producing a binary signal, a communication device for converting the binary signal to a pulsating signal. The communication device produces a special code based on an instructions from the micro-control unit. Each monitor device changes between a communication OFF state and a communication ON state. Each monitor device has a signal detector which operates during the communication OFF state and detects the special code, whereby upon detection of the special code, the signal detector generates a wakeup signal so that the monitor device is changed from the communication OFF state to communication ON state.Type: ApplicationFiled: July 6, 2015Publication date: January 12, 2017Applicants: Panasonic Intellectual Property Management Co., Ltd., PANASONIC ASIA PACIFIC PTE. LTD.Inventors: Hong Meng TANG, Chung Kiong Leslie KHOO, Tien Yew KANG, Muhammad s/o ABUTURAB, Narciso Repollo SEMIRA, Gorou MORI