Patents by Inventor Hukuyosi Isomura

Hukuyosi Isomura 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 of switching bottom-blown gases and apparatus therefor
    Patent number: 4395283
    Abstract: A method of switching bottom blown gases and an apparatus suitable for carrying such method into practice in blowing successively in turn a plurality of gases through piping into molten steel in a steel-making furnace through tuyeres or porous plugs for gas blowing located in a lower portion of the steel-making furnace. The method includes the step of directly releasing into atmosphere at least a portion of the gas flowing in and through the piping in response to a rise in the pressure of the gas when switching the blown gases.
    Type: Grant
    Filed: February 23, 1982
    Date of Patent: July 26, 1983
    Assignee: Nippon Steel Corporation
    Inventors: Shozo Murakami, Hukuyosi Isomura, Yoshihiro Koga