Patents by Inventor Hidetsuga Ikeda

Hidetsuga Ikeda 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 producing gallium-containing solution from aluminum smelting dust
    Patent number: 4725414
    Abstract: 5 to 50 wt. % of an alkaline flux such as sodium carbonate, sodium hydroxide, potassium carbonate and potassium hydroxide is added and mixed to aluminum smelting dust. The mixture is roasted, the roasted mixture is acid-leached with mineral acids such as sulfuric acid, hydrochloric acid and nitric acid, and then gallium is preferentially extracted at a high yield compared to other components of the dust.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: February 16, 1988
    Assignee: Mitsui Aluminium Co., Ltd.
    Inventors: Hidetsuga Ikeda, Shingo Matsui, Akio Era