Patents by Inventor John Hoogerwerf

John Hoogerwerf 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).

  • Process for manufacturing recording heads for magnetic storage devices
    Patent number: 5523539
    Abstract: A method for improving the manufacture of an arcuate scan drive. Such drives include a plurality of read/write heads, each head having a gap and being mounted to a rotating drum. The method for manufacture includes: rotating the drum to determine the rotational center point of the drum; specifying a gap width for each gap; specifying a distance from the rotational center point to the head gap; and laser machining each of the head gaps to said gap width such that each head gap is positioned at said distance from the rotational center point of the head.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: June 4, 1996
    Assignee: Conner Peripherals, Inc.
    Inventors: John Hoogerwerf, Robert Heinze, John M. Rottenburg