Patents by Inventor Minoru HIDA

Minoru HIDA 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).

  • DIAGNOSIS DEVICE
    Publication number: 20250237692
    Abstract: A diagnosis device for detecting an abnormality of an ideal diode in an electric circuit including a DC-DC converter, a battery, and an ideal diode in which an output of a DC-DC converter is connected to an anode side and a battery is connected to a cathode side, the diagnosis device comprising: an acquisition unit that acquires an output voltage of a DC-DC converter in a state where an operation is stopped with respect to an ideal diode using an output of DC-DC converter as a power source; and a determination unit that determines that the ideal diode is abnormal when the output voltage is equal to or higher than a predetermined threshold.
    Type: Application
    Filed: January 3, 2025
    Publication date: July 24, 2025
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Minoru HIDA
  • Power supply system
    Patent number: 12021376
    Abstract: A power supply system including: a first battery connected to a first load; a second battery; a DC-DC converter connecting the first battery and the second battery; and a connection switching unit including a first switch configured to connect the first battery to a second load and a second switch configured to connect the second battery to the second load. The connection switching unit is configured to switch selectively to a first mode in which the first switch is closed and the second switch is opened and a second mode in which the first switch is opened and the second switch is closed.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: June 25, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Minoru Hida, Akihiro Ozeki, Kohei Nishi
  • POWER SUPPLY SYSTEM
    Publication number: 20210184491
    Abstract: A power supply system including: a first battery connected to a first load; a second battery; a DC-DC converter connecting the first battery and the second battery; and a connection switching unit including a first switch configured to connect the first battery to a second load and a second switch configured to connect the second battery to the second load. The connection switching unit is configured to switch selectively to a first mode in which the first switch is closed and the second switch is opened and a second mode in which the first switch is opened and the second switch is closed.
    Type: Application
    Filed: February 18, 2021
    Publication date: June 17, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Minoru HIDA, Akihiro OZEKI, Kohei NISHI
  • Power supply system
    Patent number: 10958096
    Abstract: A power supply system including: a first battery connected to a first load; a second battery; a DC-DC converter connecting the first battery and the second battery; and a connection switching unit including a first switch configured to connect the first battery to a second load and a second switch configured to connect the second battery to the second load. The connection switching unit is configured to switch selectively to a first mode in which the first switch is closed and the second switch is opened and a second mode in which the first switch is opened and the second switch is closed.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: March 23, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Minoru Hida, Akihiro Ozeki, Kohei Nishi
  • POWER SUPPLY SYSTEM
    Publication number: 20190260225
    Abstract: A power supply system including: a first battery connected to a first load; a second battery; a DC-DC converter connecting the first battery and the second battery; and a connection switching unit including a first switch configured to connect the first battery to a second load and a second switch configured to connect the second battery to the second load. The connection switching unit is configured to switch selectively to a first mode in which the first switch is closed and the second switch is opened and a second mode in which the first switch is opened and the second switch is closed.
    Type: Application
    Filed: January 23, 2019
    Publication date: August 22, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Minoru HIDA, Akihiro OZEKI, Kohei NISHI