Magnetic storage device with flux-guided magnetoresistive...

Details Magnetic storage device with flux-guided magnetoresistive... Magnetic storage device with flux-guided magnetoresistive...

2007-01-30

2007-01-30

Miller, Brian E. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S125330

Reexamination Certificate

active

09067795

ABSTRACT:
The present invention provides a flux-guided head for use in a magnetic recording system, such as a disk drive. The head includes a write element that is capable of writing magnetic polarity transitions into the surface of a magnetic media, such as a magnetic disk, using vertical/perpendicular recording techniques. Further, a read element is provided that includes a magnetoresistive element that, when reading perpendicularly-recorded magnetic transitions from the surface of the magnetic media, produces a readback pulse signal having a substantially Lorentzian pulse shape.

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Bertram et al., “SNR and Density Limit Estimates: A Comparison of Longitudinal and Perpendicular Recording,” IEEE Transactions on Magnetics, vol. 36, No. 1, Jan. 2000, pp. 4-9.
Ouchi et al., “Overview of Latest Work on Perpendicular Recording Media,” IEEE Transactions on Magnetics, vol. 36, No. 1, Jan. 2000, pp. 16-22.

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