Patents by Inventor Amr A. Adly

Amr A. Adly 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).

  • Method of measuring magnetic fields on magnetically recorded media using a scanning tunneling microscope and magnetic probe
    Patent number: 5264794
    Abstract: The present invention discloses a method of measuring magnetic fields on magnetically recorded media. The method entails replacing the metal tip typically used with a scanning tunneling microscope with a flexible thin-film nickel of iron magnetic probe. The present invention describes a mathematical equation that relates probe position to magnetic field strength. In order to establish a tunneling current between the magnetic probe and the magnetically recorded media, any protective layer on the magnetically recorded media is removed. The magnetic probe and the magnetically recorded media may be coated with at least three-hundred angstroms of gold in order to reduce spurious probe deflections due to oxide growths on either the magnetic probe or the magnetically recorded media. The scanning tunneling microscope is designed to maintain a constant tunneling current between the probe and the item being scanned.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: November 23, 1993
    Assignee: The United States of America as represented by the Director, National Security Agency
    Inventors: Edward R. Burke, Isaak D. Mayergoyz, Amr A. Adly, Romel D. Gomez