Patents by Inventor Mithunobu Tanaka

Mithunobu Tanaka 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 preparing a ferrochromium by using a blast furnace
    Patent number: 4106929
    Abstract: The process for preparing a ferrochromium by using a blast furnace is improved by charging briquettes or pellets containing chromium ores and a carbonaceous reducing agent into the blast furnace, as well as by determining the operational conditions of the blast furnace, such as the theoretical combustion temperature at the tuyere ends and the pressure at the top of the blast furnace. According to the improvement, the degree of reduction chromium ore is high, and the blast furnace operation can smoothly performed without accidents, such as scaffolding and flooding.
    Type: Grant
    Filed: December 6, 1977
    Date of Patent: August 15, 1978
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Tamekazu Saito, Mithunobu Tanaka, Yutaka Saito, Kenich Sakaue