Patents by Inventor Arlen John Bowen

Arlen John Bowen 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
  • Multiplexing document card reader with convex lens
    Patent number: 4019065
    Abstract: A document card reader including a row of light sources transmitting light through a corresponding series of column-like cavities within a pair of members between which a document card with punched openings therethrough may move and a convex lens placed so as to receive light transmitted through the document card openings and transmit the light from all of the openings to a photodetector positioned at substantially the focal point of the lens.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: April 19, 1977
    Assignee: International Business Machines Corporation
    Inventors: Ralph Emil Beastrom, Arlen John Bowen, Ronald James Keller, David George Nutt