Patents by Inventor Yasumitsu Ebinuma

Yasumitsu Ebinuma 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).

  • Termination of d.c. high tension electric cables and method of manufacturing same
    Patent number: 4056680
    Abstract: A d.c. high tension cable termination or joint and method of manufacturing same is described. The cable comprises an electric conductor, an electrically insulating layer which is concentrically applied over the conductor, and a semi-conductive layer which is concentrically applied over the insulating layer in close contact therewith. The cable termination or joint comprises an electrically insulating liquid impregnated into a portion of the semi-conductive layer which is located adjacent to an end of the insulating layer so as to present an electrical resistance which is higher than that of the non-impregnated portion of the semi-conductive layer but is lower than that of the insulating layer. The electric conductor is electrically connected with the end of that portion of the semi-conductive layer impregnated with the insulating liquid which is located nearer the conductor.
    Type: Grant
    Filed: April 6, 1976
    Date of Patent: November 1, 1977
    Assignee: Showa Electric Wire & Cable Co., Ltd.
    Inventors: Mitsugu Aihara, Yutaka Kogane, Yasumitsu Ebinuma, Masaki Minami