Patents by Inventor Hironori Yanaga

Hironori Yanaga 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).

  • Patent number: 7990688
    Abstract: A gas-insulated switchgear is provided, which can be made smaller and causes less increase in length in the circuit direction, by means of an improvement to the layout configuration of the operating rod of a bus-use grounding switch. Operating rods of bus-use grounding switches are vertically disposed so as to be substantially perpendicular to the buses, and operating devices are disposed along an extension of the operating rods, respectively. Bus-use voltage transformers are horizontally disposed in such a manner that they vertically overlap each other, and are respectively connected in the circuit breaker direction of the buses.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: August 2, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hironori Yanaga, Yasunori Sanada
  • Publication number: 20090237870
    Abstract: A gas-insulated switchgear is provided, which can be made smaller and causes less increase in length in the circuit direction, by means of an improvement to the layout configuration of the operating rod of a bus-use grounding switch. Operating rods of bus-use grounding switches are vertically disposed so as to be substantially perpendicular to the buses, and operating devices are disposed along an extension of the operating rods, respectively. Bus-use voltage transformers are horizontally disposed in such a manner that they vertically overlap each other, and are respectively connected in the circuit breaker direction of the buses.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 24, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hironori YANAGA, Yasunori Sanada