Patents by Inventor Naohisa Morimoto
Naohisa Morimoto 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).
-
Patent number: 11592340Abstract: A circuit device that is connected to a temperature detection element that detects a temperature of an object via an external signal line and an external signal ground line includes a connector that is connected to the external signal line and the external signal ground line, an internal signal line that is connected to the external signal line via the connector, an internal signal ground line that is connected to the external signal ground line via the connector, a controlling circuit that is connected to the internal signal line and the internal signal ground line and detects the temperature of the object, and a high-frequency filter that is inserted into at least one of a foremost stage of the internal signal line and a foremost stage of the internal signal ground line as viewed from the connector.Type: GrantFiled: July 23, 2018Date of Patent: February 28, 2023Assignees: SANYO Electric Co., Ltd., PANASONIC HOLDINGS CORPORATIONInventors: Shinya Nakano, Yoshitaka Ishikawa, Kenji Koizumi, Chikara Ohmori, Naohisa Morimoto
-
Patent number: 11056886Abstract: In a power storage system, a three-phase AC wire is connected to a three-phase AC power system. Power storage blocks, each of which includes a power storage module and a power conditioner, are connected in parallel to the three-phase AC wire. A system controller individually controls power storage blocks. The power storage modules each includes: a power storage unit; and a management unit that manages the power storage unit. The power conditioner includes a power converter and a controller. The power converter converts DC power discharged into single-phase AC power and outputs the converted AC power to two lines of the three-phase AC wire, or converts single-phase AC power received from the two lines of the three-phase AC wire into DC power and charges the power storage unit. The controller is connected to the system controller via a communication line and the management unit via a communication line.Type: GrantFiled: April 16, 2018Date of Patent: July 6, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masaki Kato, Naohisa Morimoto, Masaaki Kuranuki, Jun Yamasaki, Yohei Ishii, Koichi Sawada
-
Publication number: 20210126333Abstract: A circuit device that is connected to a temperature detection element that detects a temperature of an object via an external signal line and an external signal ground line includes a connector that is connected to the external signal line and the external signal ground line, an internal signal line that is connected to the external signal line via the connector, an internal signal ground line that is connected to the external signal ground line via the connector, a controlling circuit that is connected to the internal signal line and the internal signal ground line and detects the temperature of the object, and a high-frequency filter that is inserted into at least one of a foremost stage of the internal signal line and a foremost stage of the internal signal ground line as viewed from the connector.Type: ApplicationFiled: July 23, 2018Publication date: April 29, 2021Applicants: SANYO Electric Co., Ltd., Panasonic CorporationInventors: Shinya Nakano, Yoshitaka Ishikawa, Kenji Koizumi, Chikara Ohmori, Naohisa Morimoto
-
Patent number: 10882404Abstract: A capacitor is connected between an output terminal of an impedance element and an electricity storage unit mounted in a vehicle, and the electricity storage unit is electrically insulated from a chassis of the vehicle. An earth fault determiner determines that an earth fault occurs, when a detection value based on a peak-to-peak value of a voltage at a node between the impedance element and the capacitor is less than or equal to a first reference value and more than or equal to a second reference value. The first reference value is set based on the peak-to-peak value of the voltage at the node when an insulation resistance between the electricity storage unit and the chassis of the vehicle is a minimum allowable value. The second reference value is set based on the peak-to-peak value of the voltage at the node when a complete earth fault occurs between the electricity storage unit and the chassis of the vehicle.Type: GrantFiled: October 16, 2017Date of Patent: January 5, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Naohisa Morimoto
-
Publication number: 20200127458Abstract: In a power storage system, a three-phase AC wire is connected to a three-phase AC power system. Power storage blocks, each of which includes a power storage module and a power conditioner, are connected in parallel to the three-phase AC wire. A system controller individually controls power storage blocks. The power storage modules each includes: a power storage unit; and a management unit that manages the power storage unit. The power conditioner includes a power converter and a controller. The power converter converts DC power discharged into single-phase AC power and outputs the converted AC power to two lines of the three-phase AC wire, or converts single-phase AC power received from the two lines of the three-phase AC wire into DC power and charges the power storage unit. The controller is connected to the system controller via a communication line and the management unit via a communication line.Type: ApplicationFiled: April 16, 2018Publication date: April 23, 2020Inventors: MASAKI KATO, NAOHISA MORIMOTO, MASAAKI KURANUKI, JUN YAMASAKI, YOHEI ISHII, KOICHI SAWADA
-
Publication number: 20190219621Abstract: A capacitor is connected between an output terminal of an impedance element and an electricity storage unit mounted in a vehicle, and the electricity storage unit is electrically insulated from a chassis of the vehicle. An earth fault determiner determines that an earth fault occurs, when a detection value based on a peak-to-peak value of a voltage at a node between the impedance element and the capacitor is less than or equal to a first reference value and more than or equal to a second reference value. The first reference value is set based on the peak-to-peak value of the voltage at the node when an insulation resistance between the electricity storage unit and the chassis of the vehicle is a minimum allowable value. The second reference value is set based on the peak-to-peak value of the voltage at the node when a complete earth fault occurs between the electricity storage unit and the chassis of the vehicle.Type: ApplicationFiled: October 16, 2017Publication date: July 18, 2019Inventor: NAOHISA MORIMOTO
-
Publication number: 20150355286Abstract: In failure estimating system for a battery module, failure estimating device includes: charge state calculating unit for calculating the charge state of battery module; ?SOC calculating unit for calculating ?SOC as the amount of variation of the charge state from the initial charge state of battery module; ?V integrated value calculating unit for calculating ?V as the difference between a maximum inter-terminal voltage value and a minimum inter-terminal voltage value among a plurality of battery blocks and calculating a ?V integrated value by sequentially integrating the calculated ?V; and number-of-failed-cells estimating unit for estimating, with reference to association file, the number of failed cells that corresponds to the calculated ?SOC and ?V integrated value. Association file is stored in storage unit, and associates the relationship between ?SOC and ?V integrated value with the number of failed cells.Type: ApplicationFiled: January 16, 2014Publication date: December 10, 2015Inventors: NORIHARU KOBAYASHI, MUTSUHIKO TAKEDA, NAOHISA MORIMOTO
-
Patent number: 8884588Abstract: A battery warming circuit is a circuit installed in a vehicle provided with an inverter circuit, which is supplied with direct current electrical power from a secondary battery, and a 3-phase alternating current motor, and this circuit includes: a switch control unit, which has first and second terminals connected to control terminals of first and second switching elements, and controls turning the first and second switching elements on and off; an accumulation unit which has a third terminal connected to the other end of a specific coil, and accumulates back electromotive force generated in the specific coil by turning the second switching element on and off, with the first switching element being turned on; and a charging control unit which is provided between the positive electrode of the secondary battery and the accumulation unit, and supplies electrical power accumulated in the accumulation unit to the secondary battery.Type: GrantFiled: July 11, 2011Date of Patent: November 11, 2014Assignee: Panasonic CorporationInventors: Etsushi Aga, Naohisa Morimoto
-
Patent number: 8878543Abstract: The vehicular insulation resistance detection apparatus includes a cyclic signal generating unit that generates a cyclic signal, a first resistor that has one end to which the cyclic signal is applied, a first capacitor that has one end connected to the other end of the first resistor and the other end connected to a high-voltage circuit, a second capacitor that has one end connected to the other end of the first resistor, a second resistor that has one end connected to the other end of the second capacitor and the other end connected to a low-voltage ground that is a circuit ground of a low-voltage circuit, a series circuit that includes a diode and a third resistor connected in series, and is connected in parallel with the second capacitor, this diode having a forward direction coincident with a direction from the other end of the second capacitor to the one end of the second capacitor, a voltage detection unit that detects a voltage between the low-voltage ground and the other end of the second capacitor aType: GrantFiled: May 27, 2011Date of Patent: November 4, 2014Assignee: Panasonic CorporationInventor: Naohisa Morimoto
-
Patent number: 8364324Abstract: Provided is an energy management system which can increase the awareness of energy saving. The energy management system according to the present invention includes a home appliance A located in a home, an external portable terminal PT, and a center device SV connected to the home appliance A and portable terminal PT via internet NT. The home appliance A includes an energy management unit 3 and a display control device CV. The center device SV stores for each home the electricity usage at a main breaker Bs and at branch breakers Bmn that is transmitted from the energy management unit 3 of each home. In the center device SV, the ranking in terms of the electricity usage or a degree of a decrease of the electricity usage is made relative to other homes on the basis of the stored electricity usage. The ranking is made for each home and transmitted to the display control device CV of the corresponding home.Type: GrantFiled: November 20, 2008Date of Patent: January 29, 2013Assignee: Panasonic CorporationInventors: Yuko Maeda, Naohisa Morimoto, Akiko Takamiya
-
Patent number: 8350531Abstract: A secondary battery charge control method includes: a charge control step of executing charging by supplying a charge current to a secondary battery; a charge information acquisition step of acquiring information relating to the charging executed in the charge control step; a storage step of storing the information acquired in the charge information acquisition step as charge data; and a charge inhibition determination step of determining whether to inhibit the charging in the charge control step on the basis of the charge data of a previous cycle that have been stored in the storage step when charging in the charge control step is started again after charging in the charge control step has been completed.Type: GrantFiled: October 3, 2008Date of Patent: January 8, 2013Assignee: Panasonic CorporationInventors: Naohisa Morimoto, Toshihiro Inoue
-
Publication number: 20120280660Abstract: A battery warming circuit is a circuit installed in a vehicle provided with an inverter circuit, which is supplied with direct current electrical power from a secondary battery, and a 3-phase alternating current motor, and this circuit includes: a switch control unit, which has first and second terminals connected to control terminals of first and second switching elements, and controls turning the first and second switching elements on and off; an accumulation unit which has a third terminal connected to the other end of a specific coil, and accumulates back electromotive force generated in the specific coil by turning the second switching element on and off, with the first switching element being turned on; and a charging control unit which is provided between the positive electrode of the secondary battery and the accumulation unit, and supplies electrical power accumulated in the accumulation unit to the secondary battery.Type: ApplicationFiled: July 11, 2011Publication date: November 8, 2012Inventors: Etsushi Aga, Naohisa Morimoto
-
Publication number: 20120280697Abstract: The vehicular insulation resistance detection apparatus includes a cyclic signal generating unit that generates a cyclic signal, a first resistor that has one end to which the cyclic signal is applied, a first capacitor that has one end connected to the other end of the first resistor and the other end connected to a high-voltage circuit, a second capacitor that has one end connected to the other end of the first resistor, a second resistor that has one end connected to the other end of the second capacitor and the other end connected to a low-voltage ground that is a circuit ground of a low-voltage circuit, a series circuit that includes a diode and a third resistor connected in series, and is connected in parallel with the second capacitor, this diode having a forward direction coincident with a direction from the other end of the second capacitor to the one end of the second capacitor, a voltage detection unit that detects a voltage between the low-voltage ground and the other end of the second capacitor aType: ApplicationFiled: May 27, 2011Publication date: November 8, 2012Inventor: Naohisa Morimoto
-
Patent number: 8212389Abstract: A capacitor 16 is charged by turning on a switching element 12, and when a relay 18 is operated, by turning off the switching element 12 and turning on a switching element 13, a constant-voltage power supply 11 and the capacitor 16 are series-connected, and a switching element 14 is turned on to cause the series circuit of the constant-voltage power supply 11 and the capacitor 16 to be connected to a relay coil 20, so that the voltage resulting from addition of the output voltage of the constant-voltage power supply 11 and the charging voltage of the capacitor 16 is supplied to the relay coil 20, whereby causing the relay 18 to be turned on, after which the capacitor 16 is gradually discharged by means of the relay coil 20.Type: GrantFiled: April 10, 2008Date of Patent: July 3, 2012Assignee: Panasonic CorporationInventor: Naohisa Morimoto
-
Patent number: 8062785Abstract: In a battery module including a plurality of batteries 40 stored in a housing, each of the batteries 40 includes an electrode portion 16 protruding from a battery case 5, a base 30A is arranged on a side of the electrode portions 16 so that the base 30A is in contact with the battery cases 5, and the electrode portions 16 are inserted in through holes 36 provided in the base 30A. Connection portions 320 connected to the electrode portions 16 are formed on upper surfaces of the electrode portions 16. A connection terminal 32 for connecting the batteries 40 in parallel is formed in a region on the base 30A in which the connection terminal 32 does not cover the through holes 36. The connection terminal 32 is connected to the connection portions 320 by fusible links 320A straddling the through holes 36.Type: GrantFiled: July 13, 2010Date of Patent: November 22, 2011Assignee: Panasonic CorporationInventors: Daisuke Kishii, Naohisa Morimoto, Shunsuke Yasui, Toshiki Itoi, Shinya Geshi
-
Publication number: 20110171505Abstract: In a battery module including a plurality of batteries 40 stored in a housing, each of the batteries 40 includes an electrode portion 16 protruding from a battery case 5, a base 30A is arranged on a side of the electrode portions 16 so that the base 30A is in contact with the battery cases 5, and the electrode portions 16 are inserted in through holes 36 provided in the base 30A. Connection portions 320 connected to the electrode portions 16 are formed on upper surfaces of the electrode portions 16. A connection terminal 32 for connecting the batteries 40 in parallel is formed in a region on the base 30A in which the connection terminal 32 does not cover the through holes 36. The connection terminal 32 is connected to the connection portions 320 by fusible links 320A straddling the through holes 36.Type: ApplicationFiled: July 13, 2010Publication date: July 14, 2011Inventors: Daisuke Kishll, Naohisa Morimoto, Shunsuke Yasui, Toshiki Itoi, Shinya Geshi
-
Publication number: 20110101958Abstract: A current sensor 1 is provided with: a core 3 for collecting magnetic flux generated by a target current; a Hall element 2 for outputting an electric signal corresponding to the amount of the magnetic flux collected by the core 3; a circuit board 4; and a cabinet 5 for accommodating the above components. The cabinet 5 is made of, for example, an insulating material. Provided on the circuit board 4 is the Hall element 2 and an amplifier for amplifying the output signal from the Hall element 2. Also, arranged between the core 3 and the circuit board 4 is a connecting line 9 for allowing static electricity, which has transferred from the cabinet 5 made of an insulating material to the core 3, to escape to the circuit board 4.Type: ApplicationFiled: June 2, 2009Publication date: May 5, 2011Inventor: Naohisa Morimoto
-
Publication number: 20110031812Abstract: A voltage detection device has: a differential voltage detection circuit, which detects a potential difference across a pair of input terminals; a multiplexer which selects two electrode terminals among electrode terminals of a plurality of series-connected battery modules, and has a sampling switch for respectively connecting the two selected electrode terminals to first and second wiring lines; a flying capacitor circuit, which acquires a voltage across the first and second wiring lines, and outputs the voltage to the pair of input terminals; and a signal generator, which applies common-mode noise to the flying capacitor circuit.Type: ApplicationFiled: July 28, 2008Publication date: February 10, 2011Inventor: Naohisa Morimoto
-
Publication number: 20110019328Abstract: A capacitor 16 is charged by turning on a switching element 12, and when a relay 18 is operated, by turning off the switching element 12 and turning on a switching element 13, a constant-voltage power supply 11 and the capacitor 16 are series-connected, and a switching element 14 is turned on to cause the series circuit of the constant-voltage power supply 11 and the capacitor 16 to be connected to a relay coil 20, so that the voltage resulting from addition of the output voltage of the constant-voltage power supply 11 and the charging voltage of the capacitor 16 is supplied to the relay coil 20, whereby causing the relay 18 to be turned on, after which the capacitor 16 is gradually discharged by means of the relay coil 20.Type: ApplicationFiled: April 10, 2008Publication date: January 27, 2011Inventor: Naohisa Morimoto
-
Publication number: 20100274403Abstract: Provided is an energy management system which can increase the awareness of energy saving. The energy management system according to the present invention includes a home appliance A located in a home, an external portable terminal PT, and a center device SV connected to the home appliance A and portable terminal PT via internet NT. The home appliance A includes an energy management unit 3 and a display control device CV. The center device SV stores for each home the electricity usage at a main breaker Bs and at branch breakers Bmn that is transmitted from the energy management unit 3 of each home. In the center device SV, the ranking in terms of the electricity usage or a degree of a decrease of the electricity usage is made relative to other homes on the basis of the stored electricity usage. The ranking is made for each home and transmitted to the display control device CV of the corresponding home.Type: ApplicationFiled: November 20, 2008Publication date: October 28, 2010Inventors: Yuko Maeda, Naohisa Morimoto, Akiko Takamiya