Patents by Inventor Geoge Murota

Geoge Murota 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).

  • Method of manufacturing a tough board of thermoplastic resin foam having integral skins and a dense intermediate layer
    Patent number: 4154785
    Abstract: A tough board of thermoplastic resin foam provided with skin layers on both surfaces thereof and formed of large cells elongated in the direction of the thickness of said board, wherein an intermediate high density layer thicker than 0.1mm lies substantially halfway between the upper and lower surfaces of said board. The board is formed by extruding thermoplastic resin containing dissolved foaming agent as a sheet, cooling the upper and lower surfaces rapidly to form solid skin layers and then slowly cooling while allowing controlled expansion thereof between expansion restricting members.
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: May 15, 1979
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Mitsuo Inui, Geoge Murota, Akira Kasai, Naonori Shiina, Yoshikazu Kashiwa