Patents by Inventor M. Andreas Grimm

M. Andreas Grimm 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).

  • Process for creating wear and corrosion resistant film for magnetic recording media
    Patent number: 4554217
    Abstract: A process for forming a magnetic recording member composed of a substrate, a magnetic film, and a protective layer. The magnetic film is deposited on the substrate by means of DC or RF sputtering and electron beam vacuum deposition in a partial pressure of inert gas. During the final minutes of the sputter process, oxygen or carbon monoxide is injected into the vacuum chamber to form the protective layer.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: November 19, 1985
    Assignee: Verbatim Corporation
    Inventors: M. Andreas Grimm, George W. Brock