Patents by Inventor Carlos A. S. P. dos Santos Pereina Ribeiro

Carlos A. S. P. dos Santos Pereina Ribeiro 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 for applying coatings to objects by means of magnetic field supported reactive cathode sputtering
    Patent number: 4883574
    Abstract: A method is described for applying coatings to objects by means of magnetic ield supported cathode sputtering in a vacuum, wherein, in order to achieve an improved coating rate, the total reactive gas quantity fed into a coating chamber is so measured that the reactive gas portion in the metal-reactive gas compound of the coating on the workpiece, is present in sub-stoichiometric relationship, and wherein the reactive gas flow in the chamber is conducted directly into the area of the workpieces to be coated, by-passing the sputtering cathode.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: November 28, 1989
    Assignee: Hartec Gesellschaft fur Hartstoffe und Dunnschichttechnik mbH & Co. KG
    Inventor: Carlos A. S. P. dos Santos Pereina Ribeiro