Patents by Inventor Jonathan David Hannay

Jonathan David Hannay 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).

  • Disc drive having electromagnetic biased shieldless CPP reader
    Patent number: 6985339
    Abstract: A head slider moveable relative to a storage media having a storage layer is disclosed. The disc head slider comprises a read head formed on the head slider, and comprises a first electrical contact layer adapted to carry a sensor current, a second electrical contact layer adapted to carry the sensor current, a read sensor and a bias magnet. The read sensor is configured to carry the sense current perpendicular to plane. The read sensor also has a top sensor edge, and has a bottom sensor edge aligned with the air-bearing surface to access data in the storage disc. The bias magnet magnetically biases the read sensor. Further, the first and second electrical contact layers are made of a material that does not magnetically shield the read sensor.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: January 10, 2006
    Assignee: Seagate Technology LLC
    Inventors: Michael Allen Seigler, Gregory John Parker, Sharat Batra, Robert Earl Rottmayer, Jonathan David Hannay, Petrus Antonius Van der Heijden
  • Disc drive having electromagnetic biased shieldless CPP reader
    Publication number: 20040071017
    Abstract: A head slider moveable relative to a storage media having a storage layer is disclosed. The disc head slider comprises a read head formed on the head slider, and comprises a first electrical contact layer adapted to carry a sensor current, a second electrical contact layer adapted to carry the sensor current, a read sensor and a bias magnet. The read sensor is configured to carry the sense current perpendicular to plane. The read sensor also has a top sensor edge, and has a bottom sensor edge aligned with the air-bearing surface to access data in the storage disc. The bias magnet magnetically biases the read sensor. Further, the first and second electrical contact layers are made of a material that does not magnetically shield the read sensor.
    Type: Application
    Filed: June 18, 2003
    Publication date: April 15, 2004
    Applicant: Seagate Technology LLC
    Inventors: Michael Allen Seigler, Gregory John Parker, Sharat Batra, Robert Earl Rottmayer, Jonathan David Hannay, Petrus Antonius Van der Heijden