Patents by Inventor Aiko Inuduka

Aiko Inuduka 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 apparatus
    Patent number: 8902612
    Abstract: A power conversion apparatus includes a switching circuit including semiconductor switches, and a main circuit capacitor connected between a DC power source and the switching circuit. The main circuit capacitor includes a capacitor element, first wiring members that connect the DC power source to the switching circuit, and second wiring members that connect the capacitor element to the switching circuit. The capacitor element, the first wiring members, and the second wiring members are received in a case.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 2, 2014
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Aiko Inuduka, Toshio Nagao, Hidenori Hara
  • Output filter and motor drive system including the same
    Patent number: 8362733
    Abstract: A motor drive system includes: a three-phase motor; a power conversion device that supplies power for driving the three-phase motor; and an output filter that is arranged between an output of the power conversion device and the three-phase motor and has a configuration in which a setting value of a filter resonance frequency is selectable and changeable.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: January 29, 2013
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Aiko Inuduka, Tsuyoshi Higuchi
  • Output filter and power conversion apparatus having the same
    Patent number: 8319462
    Abstract: Provided are an output filter and a power conversion apparatus having such an output filter. The output filter is configured by a neutral point detector with a reduced size and having no common mode inductance occurring by making inductances in coils of respective phases equal.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: November 27, 2012
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Aiko Inuduka, Tsuyoshi Higuchi
  • OUTPUT FILTER AND MOTOR DRIVE SYSTEM INCLUDING THE SAME
    Publication number: 20120068655
    Abstract: A motor drive system includes: a three-phase motor; a power conversion device that supplies power for driving the three-phase motor; and an output filter that is arranged between an output of the power conversion device and the three-phase motor and has a configuration in which a setting value of a filter resonance frequency is selectable and changeable.
    Type: Application
    Filed: December 1, 2011
    Publication date: March 22, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Aiko Inuduka, Tsuyoshi Higuchi
  • OUTPUT FILTER AND POWER CONVERSION APPARATUS HAVING THE SAME
    Publication number: 20110266988
    Abstract: Provided are an output filter and a power conversion apparatus having such an output filter. The output filter is configured by a neutral point detector with a reduced size and having no common mode inductance occurring by making inductances in coils of respective phases equal.
    Type: Application
    Filed: July 11, 2011
    Publication date: November 3, 2011
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Aiko INUDUKA, Tsuyoshi Higuchi
  • POWER CONVERSION APPARATUS
    Publication number: 20110228508
    Abstract: A power conversion apparatus includes a switching circuit including semiconductor switches, and a main circuit capacitor connected between a DC power source and the switching circuit. The main circuit capacitor includes a capacitor element, first wiring members that connect the DC power source to the switching circuit, and second wiring members that connect the capacitor element to the switching circuit. The capacitor element, the first wiring members, and the second wiring members are received in a case.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 22, 2011
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Aiko INUDUKA, Toshio Nagao, Hidenori Hara