Patents by Inventor Yasuhiro Yabunishi

Yasuhiro Yabunishi 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).

  • Power conversion device
    Patent number: 8411472
    Abstract: In a power conversion device, reactors in an AC input filter absorbing a voltage at a carrier frequency of a PWM converter and reactors in an AC output filter absorbing a voltage at a carrier frequency of a PWM inverter include one six-leg six-phase iron core reactor. Accordingly, the device can be reduced in size when compared with a case where the reactors are composed of two four-leg six-phase iron core reactors.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: April 2, 2013
    Assignees: Toshiba Mitsubishi-Electric Industrial Systems Corporation, Kobe Electric Industry Inc.
    Inventors: Eduardo Kazuhide Sato, Masahiro Kinoshita, Yushin Yamamoto, Tatsuaki Amboh, Yasuhiro Yabunishi
  • POWER CONVERSION DEVICE
    Publication number: 20110103106
    Abstract: In a power conversion device, reactors in an AC input filter absorbing a voltage at a carrier frequency of a PWM converter and reactors in an AC output filter absorbing a voltage at a carrier frequency of a PWM inverter include one six-leg six-phase iron core reactor. Accordingly, the device can be reduced in size when compared with a case where the reactors are composed of two four-leg six-phase iron core reactors.
    Type: Application
    Filed: July 30, 2008
    Publication date: May 5, 2011
    Applicants: TOSHIBA MITSUBISHI-ELECTRIC INDUS. SYS. CORP., KOBE ELECTRIC INDUSTRY INC.
    Inventors: Eduardo Kazuhide Sato, Masahiro Kinoshita, Yushin Yamamoto, Tatsuaki Amboh, Yasuhiro Yabunishi