Patents by Inventor Koji Okane

Koji Okane 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).

  • Patent number: 4565551
    Abstract: A method and apparatus for gasifying a solid carbonaceous material such as coal is disclosed in which powdery coal is top-blown together with oxygen gas and steam onto a molten metal bath through a non-immersing multihole lance, said powdery coal is blown separately from the oxygen gas and steam, and the steam is commingled with the oxygen gas within the lance before they are injected out of the lance.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: January 21, 1986
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Koji Okane, Hidemasa Nakajima, Shozo Okamura, Masanobu Sueyasu, Takashi Manago
  • Patent number: 4559062
    Abstract: A gasification apparatus utilizing a molten metal bath is disclosed.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: December 17, 1985
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Bunsho Hiraoka, Tsutomu Tanaka, Koji Okane
  • Patent number: 4388084
    Abstract: In a process for gasification of solid carbonaceous material such as coal, powdered coal is top-blown onto a molten iron bath stored in a furnace through a non-submerged lance toward a hot spot formed by means of a jet of oxygen and steam top-blown through a non-submerged lance, the coal being blown by means of a carrier gas, and flux is optionally added into the furnace by the lump or blown toward the hot spot, thereby resulting in the coal being gasified. The ratio L/L.sub.o of the depression depth L of the molten iron bath to the molten iron bath depth L.sub.o is maintained from 0.05 to 0.15, and the blowing velocity of the solid carbonaceous material is maintained from 50 to 300 m/sec so as to suppress the formation of an adhered mass on the upper part of the furnace, hood or lance.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: June 14, 1983
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Koji Okane, Shozo Okamura, Masanobu Sueyasu, Seiichi Masuda, Tsutomu Tanaka, Koichi Tanaka