Patents by Inventor Shinya Ohhata

Shinya Ohhata 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: 9735596
    Abstract: A battery control device includes: a measurement unit that individually measures an amount of discharging current of each discharging secondary battery of discharging secondary batteries among a plurality of secondary batteries which are independently charged and discharged; a time calculating unit that calculates time required for discharging said each discharging secondary battery until said each discharging secondary battery reaches a constant battery capacity based on a discharging current rate for said each discharging secondary battery which is calculated based on the amount of discharging current, and a state of charge (SOC) of said each discharging secondary battery; a number calculating unit that calculates an expected number of charging secondary batteries among said plurality of secondary batteries, which become fully charged in a required time, based on a charging current rate for each charging secondary battery of charging secondary batteries among said plurality of secondary batteries which is c
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: August 15, 2017
    Assignee: NEC Corporation
    Inventors: Yuan Luo, Shinya Ohhata, Junji Kogure, Nobuhide Yoshida, Shingo Takahashi, Noriyuki Itabashi
  • Patent number: 9669726
    Abstract: A battery control device (100) includes: a measurement unit (110) that measures a voltage of a secondary battery; a control unit (120) that initiates a charging process of performing charging until the voltage of the secondary battery reaches a second reference value greater than a first reference value in a case where a voltage measured by the measurement unit (110) is less than the first reference value; and an adjustment unit (130) that receives a degree of deterioration of the secondary battery as first adjustment information that becomes a reference for adjustment of a hysteresis width that is determined on the basis of the first reference value and the second reference value, and adjusts the hysteresis width on the basis of the first adjustment information that is received.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: June 6, 2017
    Assignee: NEC Corporation
    Inventors: Yuan Luo, Nobuhide Yoshida, Junji Kogure, Shinya Ohhata, Shingo Takahashi, Noriyuki Itabashi
  • Publication number: 20150318726
    Abstract: A battery control device (100) includes: a measurement unit (110) that individually measures an amount of discharging current of a discharging secondary battery among a plurality of secondary batteries which are independently charged and discharged; a time calculating unit (120) that calculates time required until the secondary battery has a constant battery capacity for each of the discharging secondary batteries on the basis of a discharging current rate for each of the secondary batteries which is calculated on the basis of the amount of discharging current, and an SOC of the secondary battery; a number calculating unit (130) that calculates an expected number of the secondary batteries, which become fully charged in the required time, on the basis of a charging current rate for each of the secondary batteries which is calculated on the basis of an amount of charging current of the charging secondary battery, an SOC of the secondary battery, and the required time, and calculates a total value of the expect
    Type: Application
    Filed: November 1, 2013
    Publication date: November 5, 2015
    Applicant: NEC Corporation
    Inventors: Yuan LUO, Shinya OHHATA, Junji KOGURE, Nobuhide YOSHIDA, Shingo TAKAHASHI, Noriyuki ITABASHI
  • Publication number: 20150291050
    Abstract: A battery control device (100) includes: a measurement unit (110) that measures a voltage of a secondary battery; a control unit (120) that initiates a charging process of performing charging until the voltage of the secondary battery reaches a second reference value greater than a first reference value in a case where a voltage measured by the measurement unit (110) is less than the first reference value; and an adjustment unit (130) that receives a degree of deterioration of the secondary battery as first adjustment information that becomes a reference for adjustment of a hysteresis width that is determined on the basis of the first reference value and the second reference value, and adjusts the hysteresis width on the basis of the first adjustment information that is received.
    Type: Application
    Filed: November 1, 2013
    Publication date: October 15, 2015
    Applicant: NEC Corporation
    Inventors: Yuan Luo, Nobuhide Yoshida, Junji Kogure, Shinya Ohhata, Shingo Takahashi, Noriyuki Itabashi