Patents by Inventor Jack H. Judy

Jack H. Judy 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).

  • Barium hexaferrite-silicon nitride-carbon magnetic recording medium
    Patent number: 5466524
    Abstract: A magnetic recording medium suitable for high density recording is prepared by depositing a silicon nitride interlayer onto a carbon substrate and then sputter depositing a barium hexaferrite magnetic recording layer onto the silicon nitride interlayer.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: November 14, 1995
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Youichi Hoshi, Dennis E. Speliotis, Jack H. Judy