Patents by Inventor Takashi Misu

Takashi Misu 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 preventing pollution of sludge formed by electrolytic etching work
    Patent number: 4040920
    Abstract: An electrolytic solution containing chromium (VI) compound is admixed with an aqueous solution of ferrous nitrate or ferrous chloride and pH of the mixture is adjusted to 8 to 8.5 with an aqueous solution of sodium hydroxide and the sludge containing chromium (III) compound is separated.
    Type: Grant
    Filed: April 30, 1976
    Date of Patent: August 9, 1977
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koji Takada, Takashi Misu