Patents by Inventor Toshinobu Takeda

Toshinobu Takeda 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).

  • Direct-current circuit breaker
    Patent number: 9413157
    Abstract: A direct-current circuit breaker includes a switching unit inserted in the direct-current line; and a commutation circuit that includes a series circuit including a first current-limiting element and an interrupting unit that forms a current zero point by superimposing a resonance current on a direct current flowing in the direct-current line and interrupts the direct current at the current zero point, that is connected in parallel with the switching unit, and that becomes a flow path for the direct current after the switching unit is opened, wherein current interruption is performed by the interrupting unit after the switching unit is opened.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: August 9, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuyori Tahata, Hiroki Ito, Kunio Kikuchi, Kenji Kamei, Yusaku Horinouchi, Masaki Hiratsuka, Sho Tokoyoda, Toshinobu Takeda
  • DIRECT-CURRENT CIRCUIT BREAKER
    Publication number: 20150043120
    Abstract: A direct-current circuit breaker includes a switching unit inserted in the direct-current line; and a commutation circuit that includes a series circuit including a first current-limiting element and an interrupting unit that forms a current zero point by superimposing a resonance current on a direct current flowing in the direct-current line and interrupts the direct current at the current zero point, that is connected in parallel with the switching unit, and that becomes a flow path for the direct current after the switching unit is opened, wherein current interruption is performed by the interrupting unit after the switching unit is opened.
    Type: Application
    Filed: May 1, 2012
    Publication date: February 12, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazuyori Tahata, Hiroki Ito, Kunio Kikuchi, Kenji Kamei, Yusaku Horinouchi, Masaki Hiratsuka, Sho Tokoyoda, Toshinobu Takeda