Patents by Inventor Masami Ishitobi

Masami Ishitobi 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: 4501928
    Abstract: A shielding tape comprising a lead foil having a layer of vinyl chloride polymer on its one surface and having on the other surface thereof a layer of vinyl chloride polymer and a layer of an adhesive not reaction-curable formed over the latter layer. Also disclosed is an electric cable comprising a sheath of vinyl chloride polymer and a water impermeable layer provided by a shielding tape having the same structure as above and longitudinally placed beneath the sheath. With an adhesive of the above-mentioned type, the sheath is adhered to the underlying vinyl chloride polymer layer of the tape, and the polymer layers of the tape are also adhered to each other at the lap of the tape.
    Type: Grant
    Filed: May 9, 1983
    Date of Patent: February 26, 1985
    Assignee: Dainichi-Nippon Cables, Ltd.
    Inventor: Masami Ishitobi