Patents by Inventor Charles Joseph Olson

Charles Joseph Olson 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 fabricating a submicron narrow writer pole
    Patent number: 6521335
    Abstract: A writer pole and a method for fabricating a writer pole is disclosed. The method comprises fabricating a conductive seed layer on a gap substrate and then fabricating a nonmagnetic feature on the seed layer where the nonmagnetic feature has a top layer and a plurality of sides. The seed layer and nonmagnetic feature are covered with photoresist. A window is fabricated in the photoresist, exposing a portion of the nonmagnetic feature and a portion of the seed layer, thereby exposing a top portion and a side portion of the nonmagnetic feature and exposing a portion of the seed layer. The portion of the seed layer in the window area is removed from the gap substrate. A pole is fabricated on the top and side portions of the nonmagnetic feature in the window area.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: February 18, 2003
    Assignee: Seagate Technology, Inc.
    Inventors: Nurul Amin, James Giusti, Charles Joseph Olson, Paul Allen Jallen