Patents by Inventor Sakae Furujho

Sakae Furujho 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 production of low phosphorus alloy
    Patent number: 4522650
    Abstract: Herein is disclosed a process for producing an alloy of low phosphorus content by means of a furnace equipped with a lance for injection. The process is characterized by producing an alloy of low phosphorus content and at the same time by gasifying the carbonaceous material.The process comprises the steps of:forming a bath of molten metal by pouring a molten metal in the furnace, said molten metal containing not more than 0.040% of phosphorus;injecting by means of said lance into said bath of molten metal a carbonaceous material together with a gasifying agent to gasify the carbonaceous material with the heat of the bath of molten metal and to increase the carbon content of the bath of molten metal, said carbonaceous material containing not more than 0.035% of phosphorus;adding to said bath of molten metal an alloying element to react with the molten metal thereby forming an alloy; andrecovering the formed gas and, at the same time, obtaining the alloy of low phosphorus content.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: June 11, 1985
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Hidemasa Nakajima, Shozo Okamura, Masanobu Sueyasu, Sakae Furujho, Kohji Okane, Shoji Anezaki