Patents by Inventor Hideharu Sakai

Hideharu Sakai 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).

  • Process for obtaining metal from metal oxide
    Patent number: 6001148
    Abstract: A process for producing metals in the reduced state from their oxides using a simple and less expensive facility with lower running cost. A metal oxide in the form of particles is supplied into a high temperature flame from an oxygen burner in a reactor furnace to heat and melt the metal oxide. A reducing agent is also supplied into the flame to cause a reducing reaction of the molten metal oxide with the reducing agent. The resulting metal is recovered.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: December 14, 1999
    Assignee: Daido Steel Co., Ltd.
    Inventors: Tetsuo Okamoto, Hideharu Sakai