Patents by Inventor Robert Duane Ahmann

Robert Duane Ahmann 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 tester with write coil and read coil
    Patent number: 6534974
    Abstract: The present invention relates to a head tester for testing heads having a read element and a write element. The tester comprises a substrate on which a read coil is positioned to be sensitive to the write element of the head. A write coil is also formed on the substrate and this coil is positioned such that the read element of the head to be tested is sensitive to the write coil.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: March 18, 2003
    Assignee: Pemstar, Inc,
    Inventors: Arlen John Bowen, Nathaniel Carl Anderson, Robert Duane Ahmann