Patents by Inventor Kazuo Sezaki

Kazuo Sezaki 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 separating cobalt, nickel and the like from alloys
    Patent number: 4657585
    Abstract: Cobalt, nickel and/or radioactive cobalt are separated from an alloy containing elements belonging to the iron group or family in such a manner that the alloy is melted in a molten bath of tin, lead and/or an alloy thereof whose weight is more than ten times as heavy as the alloy and then silicon is added to the molten bath so that a Fe-Si phase floats up and is separated, concentrating the cobalt and nickel in said bath.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: April 14, 1987
    Assignee: Ishikawajima-Harima Jukogyo Kabushi Kaisha
    Inventors: Akira Yazawa, Kimio Itagaki, Kazuo Sezaki, Kenji Matsuda, Kazuo Kanazawa, Mitsuo Hayashi, Katsuo Katada
  • Direct reduction process for iron ores with fluidized bed system
    Patent number: 4224056
    Abstract: In a reactor, fine iron ore solids are made to descend through the fluidized bed of fine carbon bearing particles sustained within the reactor so that the fine iron ore solids may be reduced and simultaneously the reducing gas may be produced. The direct reduction efficiency may be considerably improved.
    Type: Grant
    Filed: November 30, 1978
    Date of Patent: September 23, 1980
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Fumio Tomizawa, Kazuo Sezaki, Makoto Shimizu, Yukinaga Katahashi