Patents by Inventor Syoetu Suda

Syoetu Suda 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).

  • Gas insulated switch-gear apparatus
    Patent number: 4045634
    Abstract: A gas insulated switch-gear wherein power circuit breakers, disconnecting switches, earthing switches and the like constituting a power electric sub-station are enclosed in earthed metallic vessels and insulation therein is effected by means of insulated arc-suppressing gas is housed in a switching house, a bushing forming a terminal at the electric power line side is provided separately outside of the switching house, and said bushing located outside and gas insulated switch-gear is electrically connected by means of gas insulated bus bar, to thereby eliminate a wall bushing.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: August 30, 1977
    Assignee: Hitachi, Ltd.
    Inventors: Seizo Nakano, Kazuaki Oishi, Takehiro Kikuchi, Syoetu Suda