Patents by Inventor Youjirou Nomura
Youjirou Nomura 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: 9866026Abstract: A method of managing electric power for managing power, within a group, said power is to be used by a first user with a power storage system and a second user without the power storage system, the method including: (a) collecting data regarding load power of the first user and the second user and calculating total load power within the group; (b) determining whether the total load power is equal to or greater than a peak cut power; (c) determining whether a value of [total load power?peak cut power] is smaller than the load power of the first user when determination in the step (b) is Yes; and (d) causing the power storage system to discharge at the value of [total load power?peak cut power], when determination in the step (c) is Yes.Type: GrantFiled: September 12, 2013Date of Patent: January 9, 2018Assignee: NEC CorporationInventor: Youjirou Nomura
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Patent number: 9634499Abstract: An adjusting device that adjusts voltage differences among a plurality of storage batteries that are connected in series is provided with: charging means that charges said storage batteries; each switching means that corresponds to each of said plurality of storage batteries, that connects a corresponding storage battery to said charging means in parallel when turned ON, and that releases the connection between the corresponding storage battery and said charging means when turned OFF; detection means that detects each voltage of said plurality of storage batteries; and control means that turns ON, from among a plurality of said switching means, the control-object switching means that corresponds to the charge-object storage battery, which has the lowest voltage that is detected by said detection means, from among said plurality of storage batteries, and moreover, that turns OFF switching means other than said control-object switching means.Type: GrantFiled: January 25, 2013Date of Patent: April 25, 2017Assignee: NEC CorporationInventor: Youjirou Nomura
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Patent number: 9570923Abstract: An adjusting device that is connected to a load and to a plurality of storage battery units that are connected together in parallel and that adjusts voltage differences among the plurality of storage battery units includes: for each of the storage battery units, a switch that is provided between a storage battery unit and the load that is turned ON during detection intervals for detecting current from the storage battery unit, a detection means that detects the current supplied from each of the storage battery units during the detection interval, and an adjusting means that, based on the detection results of the detection means, controls the ON/OFF states of switches during the adjustment intervals for adjusting voltage differences such that the voltage differences among the plurality of storage battery units are decreased.Type: GrantFiled: January 24, 2013Date of Patent: February 14, 2017Assignee: NEC CorporationInventor: Youjirou Nomura
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Publication number: 20150303718Abstract: An adjusting device that adjusts voltage differences among a plurality of storage batteries that are connected in series is provided with: charging means that charges said storage batteries; each switching means that corresponds to each of said plurality of storage batteries, that connects a corresponding storage battery to said charging means in parallel when turned ON, and that releases the connection between the corresponding storage battery and said charging means when turned OFF; detection means that detects each voltage of said plurality of storage batteries; and control means that turns ON, from among a plurality of said switching means, the control-object switching means that corresponds to the charge-object storage battery, which has the lowest voltage that is detected by said detection means, from among said plurality of storage batteries, and moreover, that turns OFF switching means other than said control-object switching means.Type: ApplicationFiled: January 25, 2013Publication date: October 22, 2015Inventor: Youjirou NOMURA
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Publication number: 20150244173Abstract: A method of managing electric power for managing power, within a group, said power is to be used by a first user with a power storage system and a second user without the power storage system, the method including: (a) collecting data regarding load power of the first user and the second user and calculating total load power within the group; (b) determining whether the total load power is equal to or greater than a peak cut power; (c) determining whether a value of [total load power?peak cut power] is smaller than the load power of the first user when determination in the step (b) is Yes; and (d) causing the power storage system to discharge at the value of [total load power?peak cut power], when determination in the step (c) is Yes.Type: ApplicationFiled: September 12, 2013Publication date: August 27, 2015Inventor: Youjirou Nomura
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Publication number: 20150229128Abstract: This method of managing electric power electric power for managing power supply to users within a group from a power storage system and power supply to the users from a grid, the method includes obtaining a power consumed by the users (referred to as “load power”) and a peak cut power in the group; deciding a power to be discharged from the power storage system in each time segment by using at least the load power and the peak cut power; and deciding an index indicating how much grid power has been previously consumed within the group (referred to as a “grid power consumption index”), wherein in the step of determining a power to be discharged from the power storage system, a power to be discharged from the power storage system is decided by using all of the grid power consumption index, the load power, and the peak cut power.Type: ApplicationFiled: September 12, 2013Publication date: August 13, 2015Inventor: Youjirou Nomura
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Publication number: 20150212163Abstract: A device for detecting remaining battery capacity (10) includes a voltage detection unit (15), a current detection unit (13) and a control unit (17), wherein the control unit (17) is configured (a) detect actual voltage of the storage battery at start of charging storage battery, (b) obtain power storage amount corresponding to the actual voltage by using a look-up table representing a relationship between voltages and power storage amounts corresponding thereto, (c) calculate power storage amount in the storage battery charged by implemented charging (hereinafter referred to as “calculated power storage amount”), and (d) calculate total power storage amount of the charged storage battery, by adding the calculated power storage amount and the power storage amount at start.Type: ApplicationFiled: September 3, 2013Publication date: July 30, 2015Inventor: Youjirou Nomura
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Publication number: 20150111080Abstract: In order to solve at least one of the drawbacks that result from a state in which a plurality of secondary batteries are integrated, a battery apparatus having a plurality of flat secondary batteries 70 includes housing 1 with opening 30, and lid 31 capable of opening and closing opening 30 of housing 1, wherein the plurality of secondary batteries 70 are disposed in a vertical orientation in parallel with each other in housing 1 and are capable of being singly inserted into and taken out of housing 1 through opening 30.Type: ApplicationFiled: December 30, 2014Publication date: April 23, 2015Applicants: NEC CORPORATION, NEC ENERGY DEVICES, LTD.Inventors: Youjirou NOMURA, Kuniatsu HACHIYA, Toru SUZUKI
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Patent number: 8951657Abstract: In order to solve at least one of the drawbacks that result from a state in which a plurality of secondary batteries are integrated, a battery apparatus having a plurality of flat secondary batteries 70 includes housing 1 with opening 30, and lid 31 capable of opening and closing opening 30 of housing 1, wherein the plurality of secondary batteries 70 are disposed in a vertical orientation in parallel with each other in housing 1 and are capable of being singly inserted into and taken out of housing 1 through opening 30.Type: GrantFiled: June 18, 2012Date of Patent: February 10, 2015Assignees: NEC Corporation, NEC Energy Devices, Ltd.Inventors: Youjirou Nomura, Kuniatsu Hachiya, Toru Suzuki
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Publication number: 20150035492Abstract: An adjusting device that is connected to a load and to a plurality of storage battery units that are connected together in parallel and that adjusts voltage differences among the plurality of storage battery units includes: for each of the storage battery units, a switch that is provided between a storage battery unit and the load that is turned ON during detection intervals for detecting current from the storage battery unit, a detection means that detects the current supplied from each of the storage battery units during the detection interval, and an adjusting means that, based on the detection results of the detection means, controls the ON/OFF states of switches during the adjustment intervals for adjusting voltage differences such that the voltage differences among the plurality of storage battery units are decreased.Type: ApplicationFiled: January 24, 2013Publication date: February 5, 2015Inventor: Youjirou Nomura
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Publication number: 20140319914Abstract: A battery system includes a battery, a control section that controls the battery to charge electric power supplied from the electrical grid and to discharge electric power to the electrical grid; and a system controller. The system controller controls the control section such that the battery system operates in a first mode where electric power that is generated by a pre-designated distributed electric power source associated with the electrical grid is supplied preferentially to a user's load or in a second mode where electric power that is charged in the battery is supplied preferentially to the user's load.Type: ApplicationFiled: July 14, 2014Publication date: October 30, 2014Applicant: NEC CORPORATIONInventor: Youjirou NOMURA
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Patent number: 8810202Abstract: A battery system includes a battery, a control section that controls the battery to charge electric power supplied from the electrical grid and to discharge electric power to the electrical grid; and a system controller. The system controller controls the control section such that the battery system operates in a first mode where electric power that is generated by a pre-designated distributed electric power source associated with the electrical grid is supplied preferentially to a user's load or in a second mode where electric power that is charged in the battery is supplied preferentially to the user's load.Type: GrantFiled: June 5, 2012Date of Patent: August 19, 2014Assignee: NEC CorporationInventor: Youjirou Nomura
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Publication number: 20130288087Abstract: In order to solve at least one of the drawbacks that result from a state in which a plurality of secondary batteries are integrated, a battery apparatus having a plurality of flat secondary batteries 70 includes housing 1 with opening 30, and lid 31 capable of opening and closing opening 30 of housing 1, wherein the plurality of secondary batteries 70 are disposed in a vertical orientation in parallel with each other in housing 1 and are capable of being singly inserted into and taken out of housing 1 through opening 30.Type: ApplicationFiled: June 18, 2012Publication date: October 31, 2013Applicants: NEC ENERGY DEVICES, LTD., NEC CORPORATIONInventors: Youjirou Nomura, Kuniatsu Hachiya, Toru Suzuki
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Publication number: 20130154570Abstract: A battery system includes a battery, a control section that controls the battery to charge electric power supplied from the electrical grid and to discharge electric power to the electrical grid; and a system controller. The system controller controls the control section such that the battery system operates in a first mode where electric power that is generated by a pre-designated distributed electric power source associated with the electrical grid is supplied preferentially to a user's load or in a second mode where electric power that is charged in the battery is supplied preferentially to the user's load.Type: ApplicationFiled: June 5, 2012Publication date: June 20, 2013Applicant: NEC CORPORATIONInventor: Youjirou Nomura