Patents by Inventor Shoji Tanina
Shoji Tanina 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: 10177579Abstract: Disclosed is a battery management system for transmitting a secondary protection signal and a diagnosis signal using a small number of insulation elements. N battery management units included in the battery management system transmit at least two pieces of data via one communication line through time division. N data signals transmitted from the N battery management units are transmitted in a sequential order or are mixed to one signal and transmitted to an external device.Type: GrantFiled: October 16, 2014Date of Patent: January 8, 2019Assignee: LG CHEM, LTD.Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
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Patent number: 10107866Abstract: Disclosed is a battery management system for outputting a signal, capable of determining whether an error has occurred. The battery management system, according to the present invention, includes a plurality of battery management units measuring the voltage of a secondary battery and controlling the charging and discharging thereof. The battery management units output signals when the secondary battery managed thereby is overcharged or overdischarged and errors occur in the units themselves. At this time, the plurality of battery management units output the signals to lines connected in series. In the battery management system, according to the present invention, the waveforms of the signals to be output change according to the amount of current flowing in the lines connected in series.Type: GrantFiled: February 17, 2015Date of Patent: October 23, 2018Assignee: LG CHEM, LTD.Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
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Patent number: 9780578Abstract: Disclosed is a battery management system for transmitting a secondary protection signal and a diagnosis signal using a small number of insulation elements. N battery management units included in the battery management system transmit at least two pieces of data via one communication line through time division. N data signals transmitted from the N battery management units are transmitted in a sequential order or are mixed to one signal and transmitted to an external device.Type: GrantFiled: October 15, 2014Date of Patent: October 3, 2017Assignee: LG CHEM, LTD.Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
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Patent number: 9711977Abstract: Disclosed is a battery management system for transmitting a secondary protection signal and a diagnosis signal using a small number of insulation elements. N battery management units included in the battery management system transmit at least two pieces of data via one communication line through time division. N data signals transmitted from the N battery management units are transmitted in a sequential order or are mixed to one signal and transmitted to an external device.Type: GrantFiled: October 16, 2014Date of Patent: July 18, 2017Assignee: LG CHEM, LTD.Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
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Patent number: 9705663Abstract: Disclosed are a communication system and a synchronization method for enabling synchronization of units included in the communication system in case of a communication line failure. In the communication system according to the present invention, all units are synchronized with the period of an ADSYNC outputted from a master unit when the ADSYNC, in which a data transmission preparation period and a data transmission period make a single cycle, is outputted from the master unit; slave units output a free-run ADSYNC when an ADSYNC is not outputted from the master unit; and, when a plurality of the slave units output free-run ADSYNCs, the slave units are synchronized with any one free-run ADSYNC from among the outputted free-run ADSYNCs.Type: GrantFiled: October 16, 2014Date of Patent: July 11, 2017Assignee: LG CHEM, LTD.Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
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Publication number: 20160380442Abstract: Disclosed is a battery management system for transmitting a secondary protection signal and a diagnosis signal using a small number of insulation elements. N battery management units included in the battery management system transmit at least two pieces of data via one communication line through time division. N data signals transmitted from the N battery management units are transmitted in a sequential order or are mixed to one signal and transmitted to an external device.Type: ApplicationFiled: October 16, 2014Publication date: December 29, 2016Applicant: LG CHEM, LTD.Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
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Publication number: 20160261125Abstract: Disclosed is a battery management system for transmitting a secondary protection signal and a diagnosis signal using a small number of insulation elements. N battery management units included in the battery management system transmit at least two pieces of data via one communication line through time division. N data signals transmitted from the N battery management units are transmitted in a sequential order or are mixed to one signal and transmitted to an external device.Type: ApplicationFiled: October 15, 2014Publication date: September 8, 2016Applicant: LG CHEM, LTD.Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
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Publication number: 20160261124Abstract: Disclosed is a battery management system for transmitting a secondary protection signal and a diagnosis signal using a small number of insulation elements. N battery management units included in the battery management system transmit at least two pieces of data via one communication line through time division. N data signals transmitted from the N battery management units are transmitted in a sequential order or are mixed to one signal and transmitted to an external device.Type: ApplicationFiled: October 16, 2014Publication date: September 8, 2016Applicant: LG CHEM, LTD.Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
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Publication number: 20160245874Abstract: Disclosed is a battery management system for outputting a signal, capable of determining whether an error has occurred. The battery management system, according to the present invention, includes a plurality of battery management units measuring the voltage of a secondary battery and controlling the charging and discharging thereof. The battery management units output signals when the secondary battery managed thereby is overcharged or overdischarged and errors occur in the units themselves. At this time, the plurality of battery management units output the signals to lines connected in series. In the battery management system, according to the present invention, the waveforms of the signals to be output change according to the amount of current flowing in the lines connected in series.Type: ApplicationFiled: February 17, 2015Publication date: August 25, 2016Applicant: LG CHEM, LTD.Inventors: Ju-Hyun KANG, Yasuhito EGUCHI, Shoji TANINA
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Publication number: 20160164662Abstract: Disclosed are a communication system and a synchronization method for enabling synchronization of units included in the communication system in case of a communication line failure. In the communication system according to the present invention, all units are synchronized with the period of an ADSYNC outputted from a master unit when the ADSYNC, in which a data transmission preparation period and a data transmission period make a single cycle, is outputted from the master unit; slave units output a free-run ADSYNC when an ADSYNC is not outputted from the master unit; and, when a plurality of the slave units output free-run ADSYNCs, the slave units are synchronized with any one free-run ADSYNC from among the outputted free-run ADSYNCs.Type: ApplicationFiled: October 16, 2014Publication date: June 9, 2016Applicant: LG CHEM, LTD.Inventors: Ju-Hyun KANG, Yasuhito EGUCHI, Shoji TANINA
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Patent number: 9018956Abstract: Disclosed is an apparatus and method for diagnosing an abnormality in a cell balancing circuit in a battery pack including a plurality of cells corresponding to each cell balancing circuit. The present disclosure turns off cell balancing switches included in a cell balancing circuit to be diagnosed and an adjacent cell balancing circuit among the cell balancing circuits. Also, the present disclosure stores a voltage value between nodes of the cell (hereinafter referred to as a ‘diagnosis voltage value’) by turning on the cell balancing switch of the cell balancing circuit to be diagnosed. Also, the present disclosure calculates a difference value between adjacent cell voltage values (hereinafter referred to as a ‘cell difference value’) and a difference value between adjacent diagnosis voltage values (hereinafter referred to as a ‘diagnosis difference value’).Type: GrantFiled: May 27, 2014Date of Patent: April 28, 2015Assignee: LG Chem, Ltd.Inventors: Yasuhito Eguchi, Shoji Tanina, Ju-Hyun Kang
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Publication number: 20140253135Abstract: Disclosed is an apparatus and method for diagnosing an abnormality in a cell balancing circuit in a battery pack including a plurality of cells corresponding to each cell balancing circuit. The present disclosure turns off cell balancing switches included in a cell balancing circuit to be diagnosed and an adjacent cell balancing circuit among the cell balancing circuits. Also, the present disclosure stores a voltage value between nodes of the cell (hereinafter referred to as a ‘diagnosis voltage value’) by turning on the cell balancing switch of the cell balancing circuit to be diagnosed. Also, the present disclosure calculates a difference value between adjacent cell voltage values (hereinafter referred to as a ‘cell difference value’) and a difference value between adjacent diagnosis voltage values (hereinafter referred to as a ‘diagnosis difference value’).Type: ApplicationFiled: May 27, 2014Publication date: September 11, 2014Applicant: LG CHEM, LTD.Inventors: Yasuhito EGUCHI, Shoji TANINA, Ju-Hyun KANG
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Patent number: 8283895Abstract: A circuit current balancing apparatus balances circuit currents among units of a battery device. The circuit current balancing apparatus is provided with a plurality of cell stacks respectively composed of at least one cell. The apparatus balances a circuit current of a control circuit connected to each of the plurality of cell stacks for controlling and monitoring a status of the cell stack. The apparatus also includes a comparator for calculating and outputting a voltage difference between an output voltage of the corresponding cell stack and a voltage of the control circuit connected to the corresponding cell stack, and a current source for adding or subtract a dummy current to/from a circuit current of the control circuit in correspondence with the output of the comparator.Type: GrantFiled: July 13, 2007Date of Patent: October 9, 2012Assignee: LG Chem, Ltd.Inventors: Dal-Hoon Lee, Eguchi Yasuhito, Shoji Tanina, Jee-Ho Kim
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Publication number: 20090315514Abstract: A circuit current balancing apparatus balances circuit currents among units of a battery device. The circuit current balancing apparatus is provided with a plurality of cell stacks respectively composed of at least one cell. The apparatus balances a circuit current of a control circuit connected to each of the plurality of cell stacks for controlling and monitoring a status of the cell stack. The apparatus also includes a comparator for calculating and outputting a voltage difference between an output voltage of the corresponding cell stack and a voltage of the control circuit connected to the corresponding cell stack, and a current source for adding or subtract a dummy current to/from a circuit current of the control circuit in correspondence with the output of the comparator.Type: ApplicationFiled: July 13, 2007Publication date: December 24, 2009Applicant: LG CHEM, LTD.Inventors: Dal-Hoon Lee, Eguchi Yasuhito, Shoji Tanina, Jee-Ho Kim
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Patent number: 7453236Abstract: Disclosed are a multi-battery pack system, a method for controlling battery packs, and a battery pack, in which plural battery packs provided in the multi-battery pack system can be set as a master battery pack and slave battery packs by themselves. The method for controlling the battery packs constructing the multi-battery pack system includes: a first step of checking if a communication line is maintained at a first level for a first desired amount of time when an activation signal or a message of setting a master battery pack is received; and a second step of outputting signals of a second level to the communication line for a second desired amount of time when the communication line is maintained at the first level for the first desired amount of time, and setting a battery pack as a master battery pack.Type: GrantFiled: October 20, 2006Date of Patent: November 18, 2008Assignee: LG Chem, Ltd.Inventors: Yasuhito Eguchi, Shoji Tanina, Young Joon Shin, Chang Eon Jin, Jin Seok Heo
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Publication number: 20070090793Abstract: Disclosed are a multi-battery pack system, a method for controlling battery packs, and a battery pack, in which plural battery packs provided in the multi-battery pack system can be set as a master battery pack and slave battery packs by themselves. The method for controlling the battery packs constructing the multi-battery pack system includes: a first step of checking if a communication line is maintained at a first level for a first desired amount of time when an activation signal or a message of setting a master battery pack is received; and a second step of outputting signals of a second level to the communication line for a second desired amount of time when the communication line is maintained at the first level for the first desired amount of time, and setting a battery pack as a master battery pack.Type: ApplicationFiled: October 20, 2006Publication date: April 26, 2007Applicant: LG CHEM, LTD.Inventors: Yasuhito Eguchi, Shoji Tanina, Young Joon Shin, Chang Eon Jin, Jin Seok Heo
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Patent number: 6439065Abstract: The present invention provides a novel torque detecting apparatus capable of detecting torque with a simple structure and high precision by way of transmitting drive force via a pair of rotary bodies that cause own relative position to be varied by effect of torque to enable detection of variation of resonant frequency corresponding to variation of the relative position under non-contact condition or by way of transmitting drive force via a pair of rotary bodies that cause own relative position to be varied by effect of torque to enable transmission of modulated signal corresponding to variation of the relative position under non-contact condition.Type: GrantFiled: August 28, 2000Date of Patent: August 27, 2002Assignee: Sony CorporationInventors: Syunji Ooshima, Yasuhito Eguchi, Naomasa Sato, Shoji Tanina, Toshiro Hayashi
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Patent number: 5869944Abstract: A motor driving apparatus enabling direct pulse width modulation driving (direct PWM driving) in a sensor-less motor. The motor driving apparatus includes a comparison unit for comparing back-electromotive voltages appearing in respective phases of a multi-motor, a pulse width modulating unit for outputting pulse width modulated signals for rotationally driving the motor based upon a rotational error signal of the motor, a minimum pulse width detection unit for detecting the minimum pulse width position of the pulse width modulated signal from the pulse width modulation means, a sample-holding unit for sample-holding comparison outputs of the comparison means at a timing of detection of the minimum pulse width of the pulse width modulated signal from the minimum pulse width detection unit, and a motor driving unit for rotationally driving the motor based upon each sample-and-hold output from the sample-and hold unit.Type: GrantFiled: February 8, 1996Date of Patent: February 9, 1999Assignee: Sony CorporationInventor: Shoji Tanina