Patents by Inventor Sakae Furujo

Sakae Furujo 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 gasifying carbonaceous material
    Patent number: 4738688
    Abstract: A process including an apparatus for use therein for gasifying a carbonaceous material by means of blowing said carbonaceous material onto a high temperature molten iron bath through a top-blowing lance of the non-immersion type is disclosed.
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: April 19, 1988
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Hidemasa Nakajima, Shozo Okamura, Masanobu Sueyasu, Sakae Furujo, Shoji Anezaki
  • Method of controlling the stirring strength and flow rate of a jet of gas blown through a lance onto a molten metal surface
    Patent number: 4732607
    Abstract: A method of controlling independently of each other the stirring strength of a jet of oxygen gas and the flow rate of the oxygen gas to be blown onto a molten metal bath in a top-blowing oxygen furnace is disclosed. The method comprises providing an oxygen supplying conduit with a means of detecting the temperature of the supplied oxygen gas, a means of detecting the pressure thereof, and a means of heat-exchanging with the supplied oxygen gas, controlling the temperature and pressure of the oxygen supplied so that the stirring strength of the jet of oxygen gas and/or the flow rate of the oxygen gas are controlled independently of each other with the top-blowing lance being kept at a predetermined position.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: March 22, 1988
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Takashi Sugimori, Sakae Furujo