Patents by Inventor Gou Sajiki

Gou Sajiki 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 for recovering metal copper from coated copper wires
    Patent number: 8747519
    Abstract: A method selectively recovers a useful substance from waste including a chlorine-containing synthetic resin and metal copper in a mixed state. Metal copper is recovered from coated copper-wire waste. The method includes the steps of heat-treating the waste in form of coated copper wires, each having a coating material made of a chlorine-containing synthetic resin, in oil or under a non-oxygen condition. Here, the coating material is carbonized and a chlorine content of the coating material is reduced. Then the coating material and the copper wire are separated from each other the copper wire is recovered. The chlorine-containing synthetic resin can be treated without generating dioxin.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: June 10, 2014
    Assignees: Institute of National Colleges of Technology, Japan, Polytech Kagawa, Co., Ltd.
    Inventors: Hiroshi Okano, Gou Sajiki, Mitsunori Deguchi, Sadao Tanimoto