Patents by Inventor Tatsukichi Chino

Tatsukichi Chino 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).

  • Bottom tuyeres in an oxygen top-blown converter
    Patent number: 4353533
    Abstract: A tuyere for blowing an agitating gas into molten steel is arranged in the bottom of an oxygen top-blown converter in order to improve the refining effect of molten steel and has a ratio of blow sectional area S (cm.sup.2) to inner peripheral length L (cm) of not more than 0.17, preferably not more than 0.125.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: October 12, 1982
    Assignee: Kawasaki Steel Corporation
    Inventors: Tatsukichi Chino, Takuo Imai, Masaaki Tsukamoto, Ryuichi Asaho, Nagayasu Bessho, Kyoji Nakanishi