Patents by Inventor Ryota Obana

Ryota Obana 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).

  • Electric pump
    Patent number: 11499542
    Abstract: An electric pump includes a pump unit, a motor and a controller. The pump unit is configured to pump fluid by a rotating operation. The motor is a brushless direct-current motor and configured to rotationally drive the pump unit. The controller is configured to control a current to be supplied to the motor. The controller is configured to switch between voltage control for controlling the current to be supplied to the motor based on a target voltage and current control for controlling the current to be supplied to the motor based on a target current.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: November 15, 2022
    Assignees: AISIN CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeru Yamamoto, Ryota Obana, Tomoya Ishii, Motoki Takeno
  • Electric pump
    Patent number: 11460023
    Abstract: An electric pump includes a pump unit, a motor and a controller. The pump unit is configured to pump fluid by a rotating operation. The motor is a brushless direct-current motor and configured to rotationally drive the pump unit. The controller is configured to control a current to be supplied to the motor. The controller is configured to switch between voltage control for controlling the current to be supplied to the motor based on a target voltage and current control for controlling the current to be supplied to the motor based on a target current.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: October 4, 2022
    Assignees: AISIN CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeru Yamamoto, Ryota Obana, Tomoya Ishii, Motoki Takeno
  • ELECTRIC PUMP
    Publication number: 20200200166
    Abstract: An electric pump includes a pump unit, a motor and a controller. The pump unit is configured to pump fluid by a rotating operation. The motor is a brushless direct-current motor and configured to rotationally drive the pump unit. The controller is configured to control a current to be supplied to the motor. The controller is configured to switch between voltage control for controlling the current to be supplied to the motor based on a target voltage and current control for controlling the current to be supplied to the motor based on a target current.
    Type: Application
    Filed: December 23, 2019
    Publication date: June 25, 2020
    Applicants: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeru Yamamoto, Ryota Obana, Tomoya Ishii, Motoki Takeno