Patents by Inventor Yasutami Fukami

Yasutami Fukami 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 and apparatus for preliminary treatment of molten hot metal
    Patent number: 5154756
    Abstract: A method for the preliminary treatment of molten hot metal for steel making comprising passing molten hot metal towards the downstream side in a horizontally disposed trough-like vessel and injecting obliquely downwards a powdered refining agent into the molten hot metal by use of an oxygen-containing gas as a carrier through one or more single-pipe nozzles installed on the side wall of the vessel with the nozzle port being positioned below the surface of the hot metal in the vessel.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: October 13, 1992
    Assignee: Nisshin Steel Co., Ltd.
    Inventors: Yoshio Nakajima, Yasutami Fukami