Patents by Inventor Tomio Washizu

Tomio Washizu 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).

  • Open fuse cutout
    Patent number: 4540968
    Abstract: An open fuse cutout has a built-in lightning arrester. The open fuse cutout includes a supporting insulator with a protective cap fixed to an upper end thereof and containing the lightning arrester disposed laterally or vertically. The lightning arrester element has a charging electrode confronting an upper electrode across a first spark gap and a grounding electrode confronting a grounding member across a second spark gap.
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: September 10, 1985
    Assignees: NGK Insulators, Ltd., Takamatsu Electric Works, Ltd.
    Inventors: Kazuaki Kato, Tomio Washizu