Patents by Inventor Osami WADA

Osami WADA 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).

  • Switching circuit apparatus and electric power converter capable of reducing common mode noise in asymmetric circuit
    Patent number: 10498218
    Abstract: A switching circuit apparatus includes: a first capacitance provided between a first port terminal and a the first terminal of a switching circuit unit, a second capacitance provided between the first terminal and a conductor part, and a first inductance provided between a second port terminal and a second terminal of the switching circuit unit. The switching circuit apparatus is provided with: a first capacitor connected between the first port terminal and the second port terminal, and a second inductor connected between the second terminal and the conductor part. The second inductor has such an inductance that a ratio of the inductance of the second inductor to the first inductance is equal to a ratio of the first capacitance to the second capacitance.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 3, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Taiki Nishimoto, Akira Minegishi, Atsushi Yamamoto, Masahiro Yamaoka, Tohlu Matsushima, Osami Wada
  • SWITCHING CIRCUIT APPARATUS AND ELECTRONIC POWER CONVERTER CAPABLE OF REDUCING COMMON MODE NOISE IN ASYMMETRIC CIRCUIT
    Publication number: 20190165666
    Abstract: A switching circuit apparatus includes: a first capacitance provided between a first port terminal and a the first terminal of a switching circuit unit, a second capacitance provided between the first terminal and a conductor part, and a first inductance provided between a second port terminal and a second terminal of the switching circuit unit. The switching circuit apparatus is provided with: a first capacitor connected between the first port terminal and the second port terminal, and a second inductor connected between the second terminal and the conductor part. The second inductor has such an inductance that a ratio of the inductance of the second inductor to the first inductance is equal to a ratio of the first capacitance to the second capacitance.
    Type: Application
    Filed: July 28, 2017
    Publication date: May 30, 2019
    Inventors: Taiki NISHIMOTO, Akira MINEGISHI, Atsushi YAMAMOTO, Masahiro YAMAOKA, Tohlu MATSUSHIMA, Osami WADA