Patents by Inventor Tsubasa SAKUISHI

Tsubasa SAKUISHI 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: 11456643
    Abstract: A rotating electric machine includes a rotor rotatably supported and also including a magnet portion; a stator including a stator winding; and a plunger configured to displace the rotor and the stator relative to one another along an axial direction of the rotating electric machine. The stator includes a slotless structure in which at least one of no magnetic teeth and slot is provided. Thus, an attracting force acting between the magnet portion and the stator is weakened, thereby the rotor and the stator are easily displaceable relative to each other by the plunger.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: September 27, 2022
    Assignee: DENSO CORPORATION
    Inventors: Minoru Ishida, Naoki Katayama, Tsubasa Sakuishi, Yuki Takahashi
  • Publication number: 20220224257
    Abstract: A drive system establishes a normal state in which a first switch is ON and a gang switch is OFF, in the case where it is determined that there is no abnormality in the state of a first rotating body driven by a first motor. In this normal state, the first motor is driven by a first inverter, while a second motor is driven by a second inverter. It the case where it is determined that there is abnormality in the state of the first rotating body, a first countermeasure state is established in which the first switch is OFF and the gang switch is ON. In this first countermeasure state, the second motor is driven by both the first inverter and the second inverter.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Applicant: DENSO CORPORATION
    Inventors: Minoru ISHIDA, Tsubasa SAKUISHI, Yuki TAKAHASHI
  • Patent number: 11190075
    Abstract: A drive system to be applied to a vehicle is provided which includes a chargeable and dischargeable electric storage device, and in which the electric storage device is capable of being charged by power supply from an external power supply outside the vehicle. The drive system includes a rotating electrical machine, an inverter connected to the rotating electrical machine, a converter configured to transform a power supply voltage of the electric storage device and output the transformed power supply voltage to the inverter, and charging wirings which are capable of being electrically connected to the external power supply. The charging wirings are connected to connection points between the inverter and the converter.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: November 30, 2021
    Assignee: DENSO CORPORATION
    Inventors: Ryotaro Okamoto, Tsubasa Sakuishi
  • Patent number: 10886869
    Abstract: A control apparatus is applied to a vehicle including (i) a rotating electrical machine and (ii) a wheel speed sensor detecting a wheel speed. The control apparatus sets a rotation angle of the rotating electrical machine based on an estimated value of the rotation angle which is estimated based on a detection value of the wheel speed sensor.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: January 5, 2021
    Assignee: DENSO CORPORATION
    Inventors: Minoru Ishida, Naoki Katayama, Tsubasa Sakuishi, Yuki Takahashi
  • Patent number: 10875418
    Abstract: In a charging control apparatus, a supply power requestor requests an external power source to output supply power having a constant voltage and a constant current. A voltage conversion instructor instructs a voltage conversion device to perform voltage conversion of the supply power from the external power source such that converted supply power has a charging voltage and a charging current that are respectively within allowable charging-voltage range and allowable charging-current range. The voltage conversion instructor instructs the voltage conversion device to output the converted supply power to the power storage to thereby charge the power storage.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: December 29, 2020
    Assignee: DENSO CORPORATION
    Inventors: Minoru Ishida, Naoki Katayama, Tsubasa Sakuishi
  • Publication number: 20200106338
    Abstract: A rotating electric machine includes a rotor rotatably supported and also including a magnet portion; a stator including a stator winding; and a plunger configured to displace the rotor and the stator relative to one another along an axial direction of the rotating electric machine. The stator includes a slotless structure in which at least one of no magnetic teeth and slot is provided. Thus, an attracting force acting between the magnet portion and the stator is weakened, thereby the rotor and the stator are easily displaceable relative to each other by the plunger.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 2, 2020
    Applicant: DENSO CORPORATION
    Inventors: Minoru ISHIDA, Naoki KATAYAMA, Tsubasa SAKUISHI, Yuki TAKAHASHI
  • Publication number: 20200106320
    Abstract: A drive system to be applied to a vehicle is provided which includes a chargeable and dischargeable electric storage device, and in which the electric storage device is capable of being charged by power supply from an external power supply outside the vehicle. The drive system includes a rotating electrical machine, an inverter connected to the rotating electrical machine, a converter configured to transform a power supply voltage of the electric storage device and output the transformed power supply voltage to the inverter, and charging wirings which are capable of being electrically connected to the external power supply. The charging wirings are connected to connection points between the inverter and the converter.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 2, 2020
    Applicant: DENSO CORPORATION
    Inventors: Ryotaro OKAMOTO, Tsubasa SAKUISHI
  • Publication number: 20200052639
    Abstract: A control apparatus is applied to a vehicle including (i) a rotating electrical machine and (ii) a wheel speed sensor detecting a wheel speed. The control apparatus sets a rotation angle of the rotating electrical machine based on an estimated value of the rotation angle which is estimated based on a detection value of the wheel speed sensor.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 13, 2020
    Applicant: DENSO CORPORATION
    Inventors: Minoru ISHIDA, Naoki KATAYAMA, Tsubasa SAKUISHI, Yuki TAKAHASHI
  • Publication number: 20200009980
    Abstract: In a charging control apparatus, a supply power requestor requests an external power source to output supply power having a constant voltage and a constant current. A voltage conversion instructor instructs a voltage conversion device to perform voltage conversion of the supply power from the external power source such that converted supply power has a charging voltage and a charging current that are respectively within allowable charging-voltage range and allowable charging-current range. The voltage conversion instructor instructs the voltage conversion device to output the converted supply power to the power storage to thereby charge the power storage.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 9, 2020
    Applicant: DENSO CORPORATION
    Inventors: Minoru ISHIDA, Naoki KATAYAMA, Tsubasa SAKUISHI
  • Publication number: 20180009319
    Abstract: When an acceleration degree of a vehicle in a state of an electric motor generating torque as motive power is small compared to the acceleration degree of the vehicle in a state of being propelled using that torque, a user is notified by displaying a warning on a display which is a notification device of the vehicle.
    Type: Application
    Filed: March 8, 2016
    Publication date: January 11, 2018
    Applicant: DENSO CORPORATION
    Inventors: Tsubasa SAKUISHI, Masakazu YAMAMOTO