Patents by Inventor Norberg W. Schmitz

Norberg W. Schmitz 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).

  • Composite aluminum plate for physical coating processes and methods for producing composite aluminum plate and target
    Patent number: 5268236
    Abstract: A composite aluminum plate suitable for making targets for coating processes, and methods for making them are disclosed. The plate comprises a surface layer of pure aluminum or an alloy of pure aluminum, and a supporting layer made of a hardenable aluminum alloy having a Brinell hardness index HB of at least about 50 after being heat-treated under suitable conditions. The targets made are suitable for physical or sputter coating processes such as cathodic sputtering and magnetron sputtering.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: December 7, 1993
    Assignee: Vereinigte Aluminum-Werke AG
    Inventors: Christian M. Dumont, Norberg W. Schmitz, Hans Quaderer