Patents by Inventor Teruo Mizuno

Teruo Mizuno 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).

  • Battery vehicle and method of controlling the same
    Patent number: 7304444
    Abstract: A battery vehicle includes a battery configured to supply DC power, and first and second motors configured to drive first and second wheels in response to first and second motor drive powers, respectively. A first inverters generates a first control data and supplies the first motor drive power to the first motor from the DC power while limiting the first motor drive power based on the first control data and a second data. A second inverter generates the second control data and supplies the second motor drive power to the second motor from the DC power while limiting the second motor drive power based on the first and second control data.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: December 4, 2007
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shinichi Takano, Mitsugu Nakamura, Teruo Mizuno, Kazuya Fukuda
  • Forklift and method for controlling induction motor applied to the same
    Patent number: 7235948
    Abstract: A forklift having a cargo apparatus, the responsiveness of which to the operation by a user is improved. The forklift has: a DSP which generates a frequency instruction f* in response to the operation to a cargo apparatus operation lever, a voltage instruction V* from the frequency instruction f* by using the VVVF control, inverter control signals from the voltage instruction v*; an inverter which generates the three-phase electric power in response to the inverter control signal; a hydraulic pump; an induction motor driving a hydraulic pump by using the three-phase electric power; and a cargo apparatus which is driven by the hydraulic pressure supplied from the hydraulic pump.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: June 26, 2007
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Osamu Nakakita, Yoshimi Okazaki, Masayuki Morimoto, Takao Sakurai, Teruo Mizuno
  • Battery vehicle and method of controlling the same
    Publication number: 20060192430
    Abstract: A battery vehicle includes a battery configured to supply DC power, and first and second motors configured to drive first and second wheels in response to first and second motor drive powers, respectively. A first inverters generates a first control data and supplies the first motor drive power to the first motor from the DC power while limiting the first motor drive power based on the first control data and a second data. A second inverter generates the second control data and supplies the second motor drive power to the second motor from the DC power while limiting the second motor drive power based on the first and second control data.
    Type: Application
    Filed: February 10, 2006
    Publication date: August 31, 2006
    Applicant: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shinichi Takano, Mitsugu Nakamura, Teruo Mizuno, Kazuya Fukuda
  • Forklift and method for controlling induction motor applied to the same
    Publication number: 20060192519
    Abstract: A forklift having a cargo apparatus, the responsiveness of which to the operation by a user is improved. The forklift has: a DSP which generates a frequency instruction f* in response to the operation to a cargo apparatus operation lever, a voltage instruction V* from the frequency instruction f* by using the VVVF control, inverter control signals from the voltage instruction v*; an inverter which generates the three-phase electric power in response to the inverter control signal; a hydraulic pump; an induction motor driving a hydraulic pump by using the three-phase electric power; and a cargo apparatus which is driven by the hydraulic pressure supplied from the hydraulic pump.
    Type: Application
    Filed: January 24, 2006
    Publication date: August 31, 2006
    Applicant: Mitsubishi Heavy Industries, Ltd.
    Inventors: Osamu Nakakita, Yoshimi Okazaki, Masayuki Morimoto, Takao Sakurai, Teruo Mizuno