Patents by Inventor Takeo Shinono

Takeo Shinono 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).

  • Crosslinked polyolefin insulated power cable
    Patent number: 4801766
    Abstract: A crosslinked polyolefin insulated power cable with remarkably improved AC breakdown voltage and impulse withstand voltage has been obtained by a process which comprises extrusion-coating, on the outer surface of a conductor, (1) a material for the formation of an inner semiconductive layer, comprising a base polymer and N-vinylcarbazole, (2) a crosslinkable polyolefin material for the formation of a crosslinked polyolefin insulating layer and (3) a material for the formation of an outer semiconductive layer in this order and then subjecting the coated conductor to a crosslinking treatment to form, on the outer surface of the conductor, an inner semiconductive layer, a crosslinked polyolefin insulating layer and an outer semiconductive layer in this order.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: January 31, 1989
    Assignee: Showa Electric Wire & Cable Co., Ltd.
    Inventors: Fumio Aida, Takeo Shinono, Misao Hanai, Shahrzad Tassavori