Patents by Inventor Toshiki Matsunaga

Toshiki Matsunaga 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 controlling feed of alumina to an aluminum electrolytic cell
    Patent number: 4126525
    Abstract: In a method of continuously feeding alumina to an aluminum electrolytic cell in which aluminum is prepared by the electrolysis of alumina, the feed of alumina is controlled by starting it when occurrence of an anode effect is detected or anticipated, and the feed is switched between high speed, low speed and interruption during each one of a series of cycles of operation.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: November 21, 1978
    Assignee: Mitsubishi Keikinzoku Kogyo Kabushiki Kaisha
    Inventors: Kiyoaki Wakaizumi, Toshiki Matsunaga, Yuji Mino