Patents by Inventor Masato Kobayshi

Masato Kobayshi 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).

  • Vacuum switchgear
    Patent number: 6881917
    Abstract: Disclosed is a vacuum switchgear wherein a ground switch, a load switch, and an external connecting conductor to be electrically connected with the inside and outside of the vacuum container are provided in a vacuum container; the ground switch and the external connecting conductor are electrically connected in the vacuum container; and the vacuum container has a joint construction of a body portion having openings on both ends thereof, and a lid joined to the opening of the body.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: April 19, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Shuuichi Kikukawa, Yasuaki Suzuki, Masato Kobayshi, Tooru Tanimizu, Takuya Miyo