Patents by Inventor Frank S. Stageberg

Frank S. Stageberg 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).

  • Patent number: 5668689
    Abstract: An inverted magnetoresistive head is disclosed. The inverted magnetoresistive head includes a reader positioned on top of a writer. The writer includes a bottom pole, a polymer insulator, a write gap, a pole tip and a top pole. The reader includes a bottom shield, a first reader gap, a magnetoresistive element, electrical contacts, a second reader gap and a shield.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: September 16, 1997
    Assignee: Seagate Technology, Inc.
    Inventors: Allan E. Schultz, Frank S. Stageberg, Kenneth P. Ash, Brian S. Zak
  • Patent number: 5640753
    Abstract: A method of fabricating an inverted magnetoresistive head is disclosed. The method includes fabricating a writer. The writer includes a bottom pole positioned within a recessed substrate. The bottom pole is filled with copper coils and polymer. A write gap, a pole tip, and a top pole/bottom shield are fabricated on a portion of the polymer. A top surface of both the polymer and the write gap are planarized to provide a substantially smooth surface upon which a reader can be placed. The reader is fabricated on top of the writer and includes a first reader gap, a magnetoresistive element, a second reader gap, and a shield.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 24, 1997
    Assignee: Seagate Technology, Inc.
    Inventors: Allan E. Schultz, Frank S. Stageberg, Kenneth P. Ash, Brian S. Zak