Patents by Inventor Chiduru Matsuyama

Chiduru Matsuyama 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).

  • Power supply controller
    Patent number: 10074975
    Abstract: A power supply device (1) includes a parallel connection of a plurality of series circuits each including a secondary battery (11A, 11B) and a relay (12A, 12B) connected in series with the secondary battery. A control apparatus for controlling ON/OFF timings of the relays (12A, 12B) includes a control device (2) to set a time difference between the ON/OFF timings of the relays (12A, 12B) to control the supply of power at optimum timings.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: September 11, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yukari Tsukamoto, Takeshi Fujita, Chiduru Matsuyama
  • Cell connection control device
    Patent number: 9391347
    Abstract: When connecting a plurality of cells in parallel, an operation to calculate an inrush current flowing when a pair of cells are selected from the cells for the parallel-connection and parallel-connected for all cell combinations. A cell combination, whose inrush current is the largest in the cell combinations which are judged that the calculated inrush current is less than or equal to a predetermined upper limit current value, is set as a cell combination to parallel-connect the cells.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: July 12, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Chiduru Matsuyama, Yukari Tsukamoto, Takeshi Fujita
  • Battery with battery electrode and method of manufacturing same
    Patent number: 9105939
    Abstract: The invention provides a battery electrode capable of improving a lifespan characteristic (cycle characteristic at the time of high temperature endurance). The battery electrode has a collector and an active material layer formed on a surface of the collector. The active material layer includes a plurality of binders having different specific gravities. The binders are more present at the collector side of the active material layer.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: August 11, 2015
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Chiduru Matsuyama, Hideaki Horie
  • CELL CONNECTION CONTROL DEVICE
    Publication number: 20140349150
    Abstract: When connecting a plurality of cells in parallel, an operation to calculate an inrush current flowing when a pair of cells are selected from the cells for the parallel-connection and parallel-connected for all cell combinations. A cell combination, whose inrush current is the largest in the cell combinations which are judged that the calculated inrush current is less than or equal to a predetermined upper limit current value, is set as a cell combination to parallel-connect the cells.
    Type: Application
    Filed: November 5, 2012
    Publication date: November 27, 2014
    Inventors: Chiduru Matsuyama, Yukari Tsukamoto, Takeshi Fujita
  • POWER SUPPLY CONTROLLER
    Publication number: 20140265600
    Abstract: A power supply device (1) includes a parallel connection of a plurality of series circuits each including a secondary battery (11A, 11B) and a relay (12A, 12B) connected in series with the secondary battery. A control apparatus for controlling ON/OFF timings of the relays (12A, 12B) includes a control device (2) to set a time difference between the ON/OFF timings of the relays (12A, 12B) to control the supply of power at optimum timings.
    Type: Application
    Filed: October 9, 2012
    Publication date: September 18, 2014
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Yukari Tsukamoto, Takeshi Fujita, Chiduru Matsuyama
  • BATTERY WITH BATTERY ELECTRODE AND METHOD OF MANUFACTURING SAME
    Publication number: 20110014521
    Abstract: The invention provides a battery electrode capable of improving a lifespan characteristic (cycle characteristic at the time of high temperature endurance). The battery electrode has a collector and an active material layer formed on a surface of the collector. The active material layer includes a plurality of binders having different specific gravities. The binders are more present at the collector side of the active material layer.
    Type: Application
    Filed: March 9, 2009
    Publication date: January 20, 2011
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Chiduru Matsuyama, Hideaki Horie