Patents by Inventor Motohisa Murayama

Motohisa Murayama 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).

  • Electric insulated wire and cable using the same
    Patent number: 5521009
    Abstract: The present invention relates to an insulated wire comprising a conductor and at least two insulating layers provided on the outer periphery of the conductor. The inner insulating layer is provided directly or via another insulation on the outer periphery of the conductor and comprises a polyolefin compound containing 20 to 80 parts by weight of at least one substance selected from ethylene .alpha.-olefin copolymer, ethylene .alpha.-olefin polyene copolymer (.alpha.-olefin having the carbon numbers of C.sub.3 -C.sub.10, polyene being non-conjugated diene).
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: May 28, 1996
    Assignee: Fujikura Ltd.
    Inventors: Izumi Ishikawa, Isao Takahashi, Hideo Sunazuka, Akira Yoshino, Masatake Hasegawa, Motohisa Murayama
  • Electric insulated wire and cable using the same
    Patent number: 5358786
    Abstract: The present invention relates to an insulated wire comprising a conductor and at least two insulating layers provided on the outer periphery of the conductor. The inner insulating layer is provided directly or via another insulation on the outer periphery of the conductor and comprises a polyolefin compound containing 20 to 80 parts by weight of at least one substance selected from ethylene .alpha.-olefin copolymer, ethylene .alpha.-olefin polyene copolymer (.alpha.-olefin having the carbon numbers of C.sub.3 -C.sub.10, polyene being non-conjugated diene).
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: October 25, 1994
    Assignee: Fujikura Ltd.
    Inventors: Izumi Ishikawa, Isao Takahashi, Hideo Sunazuka, Akira Yoshino, Masatake Hasegawa, Motohisa Murayama