Patents Assigned to Toyo Aluminum Kabushiki Kaisha
  • Method for producing anode aluminum foils for electrolytic condensers
    Patent number: 4198278
    Abstract: Improved method for producing anode aluminum foils for electrolytic condensers used in low and intermediate voltage applications in which a hard tempered aluminum foil consisting of 99.9 to 99.99% pure aluminum added with 0.010 to 0.25% by weight of copper is electrolytically etched in an aqueous solution of neutral chlorides such as sodium chloride, aluminum chloride or potassium chloride.
    Type: Grant
    Filed: June 1, 1978
    Date of Patent: April 15, 1980
    Assignee: Toyo Aluminum Kabushiki Kaisha
    Inventors: Masashi Mehada, Masahiko Kawai, Mitsuo Sasaki, Tohru Kimura