Patents Assigned to Unakis Trading AG
  • Method of producing flat panels
    Patent number: 6679977
    Abstract: A method for producing flat panels for TFT or plasma display applications includes forming a sputter source within a sputter coating chamber, the source having at least two electrically mutually isolated stationery bar-shaped target arrangements. A controlled magnet arrangement provided under each target with a time-varying magnetron field.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: January 20, 2004
    Assignee: Unakis Trading AG
    Inventors: Walter Haag, Pius Grunenfelder, Urs Schwendener, Markus Schlegel, Siegfried Krassnitzer
  • Method for separating layers from articles
    Patent number: 6432219
    Abstract: A method for separating layers from articles made of high-speed steel and having at least one layer of TiAlN, includes applying an alkaline solution containing hydrogen peroxide, a base as well as acid to the layer. The acid is selected from phosphates, phosphonates and phosphonic acids.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: August 13, 2002
    Assignee: Unakis Trading AG
    Inventors: Jan Hendrik Wijngaard, Hans Braendle