Patents by Inventor Yasuko Shiga

Yasuko Shiga 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: 9793723
    Abstract: A plurality of storage battery modules include storage battery control devices that can mutually communicate with each other and obtain a demand for electric power in a predetermined consumer in which the plurality of storage battery modules are provided. The storage battery control devices mutually transmit and receive charging/discharging electric power of the storage batteries and control charging/discharging of the plurality of storage battery modules, respectively, on the basis of the demand for electric power in the predetermined consumer.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: October 17, 2017
    Assignee: HITACHI, LTD.
    Inventors: Taminori Tomita, Yasuko Shiga, Takaharu Ishida, Michiki Nakano
  • Patent number: 9520735
    Abstract: A storage battery control system comprises multiple storage batteries disposed in a power grid, and a storage battery control apparatus. The storage battery control apparatus is communicably coupled to the multiple storage batteries and an energy management system. The storage battery control apparatus acquires storage battery information comprising a charging-discharging performance and a remaining capacity from each of the storage batteries, acquires power supply-demand prediction information showing a prediction of power supply and demand in a prescribed range from the energy management system, decides an individual charging-discharging rate for each of the storage batteries based on the storage battery information and the power supply-demand prediction information, and sends the decided individual charging-discharging rate to each of the storage batteries. Each of the storage batteries operates based on the individual charging-discharging rate received from the storage battery control apparatus.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: December 13, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Taminori Tomita, Yasuko Shiga, Yoshihito Nasu
  • Patent number: 9395741
    Abstract: Electric-power management system, an area controller transmits, to each of section controllers, information about a target voltage and information about the present voltage, each of the section controllers calculating a difference between the target voltage and the present voltage, received from the area controller, and calculating a power's demand-supply-adjustment request amount based on difference between the information about the voltages, each of facility-equipment controllers transmitting power-reception/power-release capable equipment information to each section controller, being information about a power-reception/power-release capable equipment in a facility into which the facility-equipment controller is installed, the section controller, based on the power-reception/power-release capable equipment information about the equipment, transmitting the equipment's demand-supply-adjustment request amount and the facility-equipment controller transmitting a control signal to the equipment based on the equi
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: July 19, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Yasuko Shiga, Tohru Watanabe, Shigeki Hirasawa, Isao Wachi
  • Patent number: 9281693
    Abstract: The system control apparatus for equipment for causing equipment to collaboratively operate includes: equipment profile management means for managing an equipment profile that is metadata representing the electrical properties of the equipment; control scenario management means for managing a control scenario in which is described metadata that states an operation to be fulfilled by the equipment; equipment detection means for detecting control-targeted equipment; electrical status monitoring means for monitoring an electrical status related to transfer of electrical power caused by equipment interconnections; equipment selection means for selecting equipment for use on the basis of the metadata described in the control scenario and the equipment profile; and control execution means for controlling the selected equipment.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: March 8, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Tohru Watanabe, Yasuko Shiga, Katsumi Kawano, Shigetoshi Sameshima, Yoshiki Kakumoto, Michiki Nakano
  • Publication number: 20150249350
    Abstract: A plurality of storage battery modules include storage battery control devices that can mutually communicate with each other and obtain a demand for electric power in a predetermined consumer in which the plurality of storage battery modules are provided. The storage battery control devices mutually transmit and receive charging/discharging electric power of the storage batteries and control charging/discharging of the plurality of storage battery modules, respectively, on the basis of the demand for electric power in the predetermined consumer.
    Type: Application
    Filed: November 19, 2012
    Publication date: September 3, 2015
    Applicant: Hitachi, Ltd.
    Inventors: Taminori Tomita, Yasuko Shiga, Takaharu Ishida, Michiki Nakano
  • Publication number: 20150115969
    Abstract: A storage battery analysis system includes a storage device storing data of time series variation of a voltage value and a current value during a charging period of a storage battery and data of time series variation of the voltage value and the current value during the charging period of the storage battery; and an arithmetic device that executes a process to read out the time series variation data of the voltage value and the current value during the charging period of the battery, compares the read time series variation data, identifies a difference in the time series variation between the initial usage period and the analysis period, and stores in the storage device the difference as an index indicating a degradation state of the storage battery.
    Type: Application
    Filed: March 2, 2012
    Publication date: April 30, 2015
    Applicants: Hitachi Solutions, Ltd., Hitachi, Ltd
    Inventors: Takaharu Ishida, Kazumi Rissen, Taminori Tomita, Michiki Nakano, Yasuko Shiga, Hiroki Kurita
  • Publication number: 20140039714
    Abstract: The system control apparatus for equipment for causing equipment to collaboratively operate includes: equipment profile management means for managing an equipment profile that is metadata representing the electrical properties of the equipment; control scenario management means for managing a control scenario in which is described metadata that states an operation to be fulfilled by the equipment; equipment detection means for detecting control-targeted equipment; electrical status monitoring means for monitoring an electrical status related to transfer of electrical power caused by equipment interconnections; equipment selection means for selecting equipment for use on the basis of the metadata described in the control scenario and the equipment profile; and control execution means for controlling the selected equipment.
    Type: Application
    Filed: March 30, 2011
    Publication date: February 6, 2014
    Applicant: HITACHI, LTD.
    Inventors: Tohru Watanabe, Yasuko Shiga, Katsumi Kawano, Shigetoshi Sameshima, Yoshiki Kakumoto, Michiki Nakano
  • Publication number: 20130110304
    Abstract: Electric-power management system, an area controller transmits, to each of section controllers, information about a target voltage and information about the present voltage, each of the section controllers calculating a difference between the target voltage and the present voltage, received from the area controller, and calculating a power's demand-supply-adjustment request amount based on difference between the information about the voltages, each of facility-equipment controllers transmitting power-reception/power-release capable equipment information to each section controller, being information about a power-reception/power-release capable equipment in a facility into which the facility-equipment controller is installed, the section controller, based on the power-reception/power-release capable equipment information about the equipment, transmitting the equipment's demand-supply-adjustment request amount and the facility-equipment controller transmitting a control signal to the equipment based on the equi
    Type: Application
    Filed: March 16, 2011
    Publication date: May 2, 2013
    Applicant: HITACHI, LTD.
    Inventors: Yasuko Shiga, Tohru Watanabe, Shigeki Hirasawa, Isao Wachi