Patents by Inventor Atsushi Nakanouchi

Atsushi Nakanouchi 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).

  • Battery pack, electricity storage system, electronic apparatus, electrically driven vehicle, electric power system, and control system
    Patent number: 9028988
    Abstract: There is provided a battery pack including a current control element which is inserted in a discharge current path, and in which a thermostat and a heat sensitive resistance element whose resistance value increases in response to an increase in temperature are connected in parallel; and a detection unit that outputs an open signal indicating the opening of the contacts when it is detected that contacts of the thermostat are opened.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: May 12, 2015
    Assignee: Sony Corporation
    Inventors: Atsushi Nakanouchi, Masaki Hogari
  • BATTERY PACK, ELECTRICITY STORAGE SYSTEM, ELECTRONIC APPARATUS, ELECTRICALLY DRIVEN VEHICLE, ELECTRIC POWER SYSTEM, AND CONTROL SYSTEM
    Publication number: 20120225328
    Abstract: There is provided a battery pack including a current control element which is inserted in a discharge current path, and in which a thermostat and a heat sensitive resistance element whose resistance value increases in response to an increase in temperature are connected in parallel; and a detection unit that outputs an open signal indicating the opening of the contacts when it is detected that contacts of the thermostat are opened.
    Type: Application
    Filed: February 7, 2012
    Publication date: September 6, 2012
    Applicant: SONY CORPORATION
    Inventors: Atsushi Nakanouchi, Masaki Hogari
  • Secondary cell residual capacity calculation method and battery pack
    Patent number: 7492126
    Abstract: A secondary cell residual capacity calculation method and a battery pack capable of calculating the secondary cell residual capacity is provided. The calculation method includes detecting a temperature of a plurality of secondary cells; detecting a current and a terminal voltage of the plurality of secondary cells; digitizing temperature, current, and terminal voltage; calculating a cell polarization voltage from the digitized temperature, current and terminal voltage; calculating an original cell voltage from both of the calculated cell polarization voltage and the detected terminal voltage; and calculating a residual capacity rate based on the calculated original cell voltage with reference to a prearranged residual capacity reference data table.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: February 17, 2009
    Assignee: Sony Corporation
    Inventors: Masaki Hogari, Yoshinori Ohta, Atsushi Nakanouchi
  • Secondary cell residual capacity calculation method and battery pack
    Publication number: 20050024020
    Abstract: A secondary cell residual capacity calculation method and a battery pack capable of calculating the secondary cell residual capacity is provided. The calculation method includes detecting a temperature of a plurality of secondary cells; detecting a current and a terminal voltage of the plurality of secondary cells; digitizing temperature, current, and terminal voltage; calculating a cell polarization voltage from the digitized temperature, current and terminal voltage; calculating an original cell voltage from both of the calculated cell polarization voltage and the detected terminal voltage; and calculating a residual capacity rate based on the calculated original cell voltage with reference to a prearranged residual capacity reference data table.
    Type: Application
    Filed: July 23, 2004
    Publication date: February 3, 2005
    Inventors: Masaki Hogari, Yoshinori Ohta, Atsushi Nakanouchi