Patents by Inventor Mamiko Endo

Mamiko Endo 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).

  • Pipe liner having electrically conductive wires for hardening and electrostatic build-up prevention
    Patent number: 5010440
    Abstract: A pipe liner for lining an underground pipe is disclosed, which mainly consists of an electrically conductive flexible tube impregnated with a thermosetting resin, and conductive wires, and is characterized in that the thermosetting resin is hardened by means of electric heating of the electrically conductive flexible tube on which the conductive wires are laid.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: April 23, 1991
    Inventor: Mamiko Endo