Patents by Inventor Lowell E. Dunn

Lowell E. Dunn 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).

  • Multielement magnetic head assembly
    Patent number: 4396967
    Abstract: A multielement magnetic head is formed with a closure section having a nonmagnetic ceramic substrate on which a thin layer of magnetic ferrite is deposited and processed. The thin ferrite layer is cut to define the separate transducing elements and data track separation. The closure section is joined to a wafer formed from a ferrite substrate and a thin film conductive coil means.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: August 2, 1983
    Assignee: International Business Machines Corporation
    Inventors: Armando J. Argumedo, William W. Chow, Lowell E. Dunn, Billy R. Lakey