Patents by Inventor Carolyn A. Messinger

Carolyn A. Messinger 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 production of magnetic media
    Patent number: 4816119
    Abstract: This invention comprises the use, during the plating processing of thin-film magnetic recording media, of an oxidizing treatment immediately preceding the electroplating of the magnetic layer. This oxidizing treatment can be controlled to produce desired high levels of coercive force and low levels of media noise.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: March 28, 1989
    Assignee: Digital Equipment Corp.
    Inventors: Gary C. Rauch, Young David J., Earl R. C. Johns, Robert L. Stone, Carolyn A. Messinger