Patents by Inventor Fred John Oleson

Fred John Oleson 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).

  • Magnetic head assembly and method for reading and/or writing data onto a thin magnetic layer placed on a photographic element
    Patent number: 5684661
    Abstract: A method and apparatus for reading and/or recording information on a photographic element having a thin magnetic layer. The apparatus includes a magnetic head assembly having a read and/or write head having an outer engaging surface for contacting the magnetic layer. The outer engaging surface has at least one pole for reading or writing information on the magnetic layer and a protective layer and is made of a material having a Vickers hardness equal to or greater than 1000 kg/mm.sup.2. A spring is provided for applying a substantially perpendicular loading force between the photographic element and the magnetic read and/or write head. The substantially perpendicular loading being equal to or greater than about 10 gm/mm.sup.2.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: November 4, 1997
    Assignee: Eastman Kodak Company
    Inventors: Joseph Richard Berry, Jr., Robert Owen James, Fred John Oleson, Ronald Myron Wexler