Patents by Inventor Mari NISHIYAMA

Mari NISHIYAMA 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: 12170496
    Abstract: A motor control device includes: a power source device including a DC-output power conversion device having a first mode for outputting first voltage and a second mode for outputting second voltage higher than the first voltage; a power supply device; and a control device, and controls a motor. When a flying object takes off, the control device controls the power conversion device in the second mode. When the control device judges that flight information which is one or both of information of a motor parameter obtained along with control for the motor and information of an environmental factor relevant to the flight altitude satisfies a predetermined condition, or when the control device has received an operation mode signal for which the first mode is selected on the basis of the flight information during control for the motor, the control device controls the power conversion device in the first mode.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: December 17, 2024
    Assignees: MITSUBISHI ELECTRIC CORPORATION, JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Kenji Fujiwara, Hisatoshi Fukumoto, Tomoki Takegami, Tetsuya Kojima, Akihiko Iwata, Masahiro Sugahara, Hiroshi Kobayashi, Mari Nishiyama, Akira Nishizawa
  • Patent number: 12015361
    Abstract: A motor control device includes: a step-down device including a DC-output power conversion device having a first mode for outputting first voltage and a second mode for outputting second voltage lower than the first voltage; a power supply device; and a control device, and controls a motor. When a flying object takes off, the control device controls the power conversion device in the first mode. When the control device judges that flight information which is one or both of information of a motor parameter obtained along with control for the motor and information of an environmental factor relevant to the flight altitude of satisfies a predetermined condition, or when the control device has received an mode signal for which the second mode is selected on the basis of the flight information during control for the motor, the control device controls the power conversion device in the second mode.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: June 18, 2024
    Assignees: MITSUBISHI ELECTRIC CORPORATION, JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Kenji Fujiwara, Hisatoshi Fukumoto, Tomoki Takegami, Tetsuya Kojima, Akihiko Iwata, Masahiro Sugahara, Hiroshi Kobayashi, Mari Nishiyama, Akira Nishizawa
  • Publication number: 20240109665
    Abstract: To provide an electric aircraft and an aerodynamic performance control method therefor that are capable of optimizing aerodynamic performance of a wing in each flight phase or an emergency such as gust action without depending on the shape of a wing. To provide an electric aircraft and an aerodynamic performance control method therefor that are capable of optimizing aerodynamic performance of a wing in each flight phase or an emergency such as gust action without depending on the shape of a wing.
    Type: Application
    Filed: July 29, 2020
    Publication date: April 4, 2024
    Inventors: Hiroshi KOBAYASHI, Mari NISHIYAMA, Akira NISHIZAWA
  • Publication number: 20230084424
    Abstract: A motor control device includes: a power source device including a DC-output power conversion device having a first mode for outputting first voltage and a second mode for outputting second voltage higher than the first voltage; a power supply device; and a control device, and controls a motor. When a flying object takes off, the control device controls the power conversion device in the second mode. When the control device judges that flight information which is one or both of information of a motor parameter obtained along with control for the motor and information of an environmental factor relevant to the flight altitude satisfies a predetermined condition, or when the control device has received an operation mode signal for which the first mode is selected on the basis of the flight information during control for the motor, the control device controls the power conversion device in the first mode.
    Type: Application
    Filed: March 4, 2020
    Publication date: March 16, 2023
    Applicants: Mitsubishi Electric Corporation, JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Kenji FUJIWARA, Hisatoshi FUKUMOTO, Tomoki TAKEGAMI, Tetsuya KOJIMA, Akihiko IWATA, Masahiro SUGAHARA, Hiroshi KOBAYASHI, Mari NISHIYAMA, Akira NISHIZAWA
  • Publication number: 20230057522
    Abstract: A motor control device includes: a step-down device including a DC-output power conversion device having a first mode for outputting first voltage and a second mode for outputting second voltage lower than the first voltage; a power supply device; and a control device, and controls a motor. When a flying object takes off, the control device controls the power conversion device in the first mode. When the control device judges that flight information which is one or both of information of a motor parameter obtained along with control for the motor and information of an environmental factor relevant to the flight altitude of satisfies a predetermined condition, or when the control device has received an mode signal for which the second mode is selected on the basis of the flight information during control for the motor, the control device controls the power conversion device in the second mode.
    Type: Application
    Filed: March 4, 2020
    Publication date: February 23, 2023
    Applicants: Mitsubishi Electric Corporation, JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Kenji FUJIWARA, Hisatoshi FUKUMOTO, Tomoki TAKEGAMI, Tetsuya KOJIMA, Akihiko IWATA, Masahiro SUGAHARA, Hiroshi KOBAYASHI, Mari NISHIYAMA, Akira NISHIZAWA