Patents by Inventor Akihiro Katakami

Akihiro Katakami 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).

  • Motor control unit having integrated inverter unit
    Patent number: 9647514
    Abstract: A motor control unit is obtained by integrating an inverter unit and a motor unit having a motor, the inverter unit having a control board erected on a support board.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: May 9, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Akihiro Katakami, Tomoki Kawamura, Hirofumi Shimizu, Hiroaki Takahashi
  • Electric unit
    Patent number: 9561762
    Abstract: An electric unit is attached to a power unit including a motor-generator, the power unit being disposed in a power unit mounting chamber that is formed at a front of a vehicle and separated from a vehicle cabin by a partition wall. The electric unit includes: a high-voltage component including an electric power conversion device of a relatively high voltage, the electric power conversion device converting an electric power between a DC electric power and an AC electric power for the motor-generator; and a low-voltage component including a control device of a relatively low voltage, the control device controlling the electric power conversion device. The high-voltage component and the low-voltage component are accommodated in an accommodation case. Inside the accommodation case, the high-voltage component is arranged toward the front of the vehicle, and the low-voltage component is arranged toward a rear of the vehicle.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: February 7, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Masahiro Miyashita, Hirofumi Shimizu, Akihiro Katakami, Hiroaki Takahashi
  • ELECTRIC UNIT
    Publication number: 20150043132
    Abstract: An electric unit is attached to a power unit including a motor-generator, the power unit being disposed in a power unit mounting chamber that is formed at a front of a vehicle and separated from a vehicle cabin by a partition wall. The electric unit includes: a high-voltage component including an electric power conversion device of a relatively high voltage, the electric power conversion device converting an electric power between a DC electric power and an AC electric power for the motor-generator; and a low-voltage component including a control device of a relatively low voltage, the control device controlling the electric power conversion device. The high-voltage component and the low-voltage component are accommodated in an accommodation case. Inside the accommodation case, the high-voltage component is arranged toward the front of the vehicle, and the low-voltage component is arranged toward a rear of the vehicle.
    Type: Application
    Filed: February 22, 2013
    Publication date: February 12, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Masahiro Miyashita, Hirofumi Shimizu, Akihiro Katakami, Hiroaki Takahashi
  • MOTOR CONTROL UNIT
    Publication number: 20150008804
    Abstract: A motor control unit is obtained by integrating an inverter unit and a motor unit having a motor, the inverter unit having a control board erected on a support board.
    Type: Application
    Filed: February 4, 2013
    Publication date: January 8, 2015
    Inventors: Akihiro Katakami, Tomoki Kawamura, Hirofumi Shimizu, Hiroaki Takahashi