Patents by Inventor Kazuo Takenaka

Kazuo Takenaka 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: 11059371
    Abstract: An on-vehicle power supply device according to the present disclosure includes an electricity storage, a charge circuit, a discharge circuit, an input unit, an output unit and a controller. When the controller decides that an emergency operation condition is satisfied, the controllers causes the charge circuit to stop charging power to the electricity storage, then sets an output instruction voltage that is a target voltage value of an output of the discharge circuit to a first voltage value, the controller further causes the discharge circuit to discharge the power charged in the electricity storage, and, when the power output from the discharge circuit becomes higher than a power threshold, the controller lowers an output instruction voltage from a first voltage value to a second voltage value.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: July 13, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Youichi Kageyama, Katsunori Atago, Kazuo Takenaka, Hisao Hiragi, Yugo Setsu, Takashi Higashide
  • Patent number: 11059439
    Abstract: An in-vehicle power supply device according to the present disclosure includes an input terminal, a charge-discharge circuit connected to the input terminal, a first output terminal connected to the charge-discharge circuit via a first switch unit and a first cut-off unit, a second output terminal connected to the charge-discharge circuit via a second switch unit and a second cut-off unit, and a controller connected to the input terminal, the first output terminal, and the second output terminal. The controller controls the charge-discharge circuit, the first switch unit, the first cut-off unit, the second switch unit, and the second cut-off unit. When the controller detects that a voltage of the first output terminal becomes lower than the first load threshold voltage, the first cut-off unit changes from a connected state to a cut-off state.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: July 13, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Youichi Kageyama, Kazuo Takenaka, Yugo Setsu, Hisao Hiragi, Katsunori Atago, Takashi Higashide
  • Patent number: 11053714
    Abstract: A door latch power supply device includes an electricity storage unit, a charger, a discharger, a contactless power receiver, an input port configured to be connected to an external power supply, an output port configured to be connected to an actuator, and an operation signal receiver configured to receive an operation signal sent in response to an operation for opening a door. While an input voltage input to the input port is higher than or equal to a first input threshold, the charger operates using power supplied from the external power supply so as to cause a storage voltage of the electricity storage unit to become a first storage voltage value, and the discharger outputs power in the electricity storage unit to the output port to place the actuator in the unlatched state in response to the operation signal received by the operation signal receiver.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: July 6, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Youichi Kageyama, Takashi Higashide, Katsunori Atago, Kazuo Takenaka, Hisao Hiragi, Yugo Setsu
  • Patent number: 11046264
    Abstract: An in-vehicle emergency power supply device includes a power storage unit including an electric double-layer capacitor, a charging circuit charging the power storage unit, a discharging circuit discharging the power storage unit, and a controller controlling the charging circuit and the discharging circuit. When the charging circuit charges the power storage unit, the controller determines a set full charging voltage of the power storage unit, determines a correction charging voltage lower than the set full charging voltage based on the set full charging voltage, and controls the charging circuit to charge the power storage unit until a stored voltage reaches the correction charging voltage. This in-vehicle emergency power supply device stabilizes an output voltage thereof.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 29, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Youichi Kageyama, Takashi Higashide, Katsunori Atago, Hisao Hiragi, Kazuo Takenaka, Yugo Setsu
  • Publication number: 20200369228
    Abstract: When the output voltage of a vehicle battery is lower than a lower limit value of an activation voltage, a power storage is charged with electric power supplied from the outside to a contactless power receiver, and thus the electric power stored in the power storage is supplied to a controller via a discharger to enable the controller to be activated. After the controller is activated, the controller causes a battery relay to be connected using the electric power supplied from the power storage via the discharger. Electric power is supplied from a high voltage battery to the vehicle battery to enable the vehicle battery to output a voltage higher than or equal to the lower limit value and enable a plurality of relays to be connected.
    Type: Application
    Filed: December 6, 2018
    Publication date: November 26, 2020
    Inventors: YOUICHI KAGEYAMA, TAKASHI HIGASHIDE, KATSUNORI ATAGO, KAZUO TAKENAKA, HISAO HIRAGI, YUGO SETSU, HIROKI NISHINAKA
  • Publication number: 20200331356
    Abstract: A vehicle-mounted power source device includes: a power storage unit; a charging unit; a discharging unit; and a control unit which controls operations of the charging unit and the discharging unit in accordance with an activation signal. When the control unit receives the activation signal, the terminal voltage of the power storage unit becomes the first voltage through a charging operation of the charging unit, and when the control unit finishes receiving the activation signal, the discharging unit starts a discharging operation, and the terminal voltage of the power storage unit is reduced to a second voltage lower than the first voltage.
    Type: Application
    Filed: November 6, 2018
    Publication date: October 22, 2020
    Inventors: YOUICHI KAGEYAMA, HIROKI NISHINAKA, TAKASHI HIGASHIDE, KATSUNORI ATAGO, KAZUO TAKENAKA, HISAO HIRAGI, YUGO SETSU
  • Publication number: 20200263460
    Abstract: A door latch power supply device includes an electricity storage unit, a charger, a discharger, a contactless power receiver, an input port configured to be connected to an external power supply, an output port configured to be connected to an actuator, and an operation signal receiver configured to receive an operation signal sent in response to an operation for opening a door. While an input voltage input to the input port is higher than or equal to a first input threshold, the charger operates using power supplied from the external power supply so as to cause a storage voltage of the electricity storage unit to become a first storage voltage value, and the discharger outputs power in the electricity storage unit to the output port to place the actuator in the unlatched state in response to the operation signal received by the operation signal receiver.
    Type: Application
    Filed: July 18, 2018
    Publication date: August 20, 2020
    Inventors: YOUICHI KAGEYAMA, TAKASHI HIGASHIDE, KATSUNORI ATAGO, KAZUO TAKENAKA, HISAO HIRAGI, YUGO SETSU
  • Publication number: 20200086814
    Abstract: An in-vehicle power supply device according to the present disclosure includes an input terminal, a charge-discharge circuit connected to the input terminal, a first output terminal connected to the charge-discharge circuit via a first switch unit and a first cut-off unit, a second output terminal connected to the charge-discharge circuit via a second switch unit and a second cut-off unit, and a controller connected to the input terminal, the first output terminal, and the second output terminal. The controller controls the charge-discharge circuit, the first switch unit, the first cut-off unit, the second switch unit, and the second cut-off unit. When the controller detects that a voltage of the first output terminal becomes lower than the first load threshold voltage, the first cut-off unit changes from a connected state to a cut-off state.
    Type: Application
    Filed: June 7, 2018
    Publication date: March 19, 2020
    Inventors: YOUICHI KAGEYAMA, KAZUO TAKENAKA, YUGO SETSU, HISAO HIRAGI, KATSUNORI ATAGO, TAKASHI HIGASHIDE
  • Publication number: 20200055472
    Abstract: An in-vehicle emergency power supply device includes a power storage unit including an electric double-layer capacitor, a charging circuit charging the power storage unit, a discharging circuit discharging the power storage unit, and a controller controlling the charging circuit and the discharging circuit. When the charging circuit charges the power storage unit, the controller determines a set full charging voltage of the power storage unit, determines a correction charging voltage lower than the set full charging voltage based on the set full charging voltage, and controls the charging circuit to charge the power storage unit until a stored voltage reaches the correction charging voltage. This in-vehicle emergency power supply device stabilizes an output voltage thereof.
    Type: Application
    Filed: January 12, 2018
    Publication date: February 20, 2020
    Inventors: YOUICHI KAGEYAMA, TAKASHI HIGASHIDE, KATSUNORI ATAGO, HISAO HIRAGI, KAZUO TAKENAKA, YUGO SETSU
  • Publication number: 20200016981
    Abstract: An on-vehicle power supply device according to the present disclosure includes an electricity storage, a charge circuit, a discharge circuit, an input unit, an output unit and a controller. When the controller decides that an emergency operation condition is satisfied, the controllers causes the charge circuit to stop charging power to the electricity storage, then sets an output instruction voltage that is a target voltage value of an output of the discharge circuit to a first voltage value, the controller further causes the discharge circuit to discharge the power charged in the electricity storage, and, when the power output from the discharge circuit becomes higher than a power threshold, the controller lowers an output instruction voltage from a first voltage value to a second voltage value.
    Type: Application
    Filed: March 16, 2018
    Publication date: January 16, 2020
    Inventors: YOUICHI KAGEYAMA, KATSUNORI ATAGO, KAZUO TAKENAKA, HISAO HIRAGI, YUGO SETSU, TAKASHI HIGASHIDE
  • Patent number: 4998092
    Abstract: In a tire valve suitable for detecting the pressure and temperature in a tire, the strain of the tire wheel and the like, a conductive core body of a valve core is electrically insulated from a conductive shaft, and, to a pedestal having a 1st electrode electrically shaft and a 2nd electrode electrically connected to a conductive valve stem via a core spring, a sensor having two sensor electrodes connected with the 1st and 2nd electrodes respectively is fixed.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: March 5, 1991
    Assignees: Bridgestone Corporation, Pacific Industrial Co., Ltd.
    Inventors: Kiyoshi Ohno, Makoto Nakao, Kazuo Takenaka, Kazuki Iinuma