Patents by Inventor Yoshihito Nasu

Yoshihito Nasu 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: 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
  • Publication number: 20150326040
    Abstract: Charging equipment and a charge control unit are provided, in which a plurality of devices mounted with battery can be simultaneously charged by the single charging equipment. Further, a method of controlling charge and a method of receiving charge are also provided. The charging equipment supplies electric power to the battery for charging, comprising a power output part which outputs DC power used for charging, a plurality of user operation units which can be connected with a vehicle equipped with a battery as a device mounted with battery, and the charge control unit which controls a power supply from the power output part to the user operation unit. Herein, the charge control unit distributes the electric power outputted from the power output part to supply the distributed power to the user operation unit connected with the vehicle.
    Type: Application
    Filed: July 22, 2015
    Publication date: November 12, 2015
    Applicant: HITACHI, LTD.
    Inventors: Shoji Kawai, Tomoyuki Marui, Masami Takahashi, Kazumi Rissen, Takafumi Ebara, Kei Yonezawa, Yoshihito Nasu
  • Patent number: 9168841
    Abstract: Charging equipment and a charge control unit are provided, in which a plurality of devices mounted with battery can be simultaneously charged by the single charging equipment. Further, a method of controlling charge and a method of receiving charge are also provided. The charging equipment supplies electric power to the battery for charging, comprising a power output part which outputs DC power used for charging, a plurality of user operation units which can be connected with a vehicle equipped with a battery as a device mounted with battery, and the charge control unit which controls a power supply from the power output part to the user operation unit. Herein, the charge control unit distributes the electric power outputted from the power output part to supply the distributed power to the user operation unit connected with the vehicle.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: October 27, 2015
    Assignee: HITACHI, LTD.
    Inventors: Shoji Kawai, Tomoyuki Marui, Masami Takahashi, Kazumi Rissen, Takafumi Ebara, Kei Yonezawa, Yoshihito Nasu
  • Publication number: 20110285345
    Abstract: Charging equipment and a charge control unit are provided, in which a plurality of devices mounted with battery can be simultaneously charged by the single charging equipment. Further, a method of controlling charge and a method of receiving charge are also provided. The charging equipment supplies electric power to the battery for charging, comprising a power output part which outputs DC power used for charging, a plurality of user operation units which can be connected with a vehicle equipped with a battery as a device mounted with battery, and the charge control unit which controls a power supply from the power output part to the user operation unit. Herein, the charge control unit distributes the electric power outputted from the power output part to supply the distributed power to the user operation unit connected with the vehicle.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 24, 2011
    Inventors: Shoji Kawai, Tomoyuki Marui, Masami Takahashi, Kazumi Rissen, Takafumi Ebara, Kei Yonezawa, Yoshihito Nasu