Method of demagnetizing magnetic recording medium and...

Details Method of demagnetizing magnetic recording medium and... Method of demagnetizing magnetic recording medium and...

2006-05-03

2008-12-23

Wellington, Andrea L (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

C360S015000

Reexamination Certificate

active

07468852

ABSTRACT:
Embodiments of the invention improve efficiency in alternating-current demagnetization of a magnetic recording medium. In specific embodiments, magnet fields in a direction slanting to an easy direction of magnetization of recording layer magnetization of a medium in rotation are applied.

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patent: 0546312 (1993-06-01), None
patent: 05-258210 (1993-10-01), None
patent: 08-138203 (1996-05-01), None
patent: 2002-163801 (2002-06-01), None

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