Bulk erase tool for erasing perpendicularly recorded media

Details Bulk erase tool for erasing perpendicularly recorded media Bulk erase tool for erasing perpendicularly recorded media

2006-04-21

2009-12-01

Nguyen, Danny (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

C361S143000

Reexamination Certificate

active

07626800

ABSTRACT:
A bulk erase tool for erasing perpendicularly recorded media is provided. The bulk erase tool includes a first polarity erase magnet and a second polarity erase magnet offset from the first polarity erase magnet. In so doing, the offset between the first polarity erase magnet and the second polarity erase magnet produces a non-parallel non-vertical applied field utilized for erasing perpendicularly recorded media.

REFERENCES:
patent: 5416664 (1995-05-01), Becker et al.
patent: 5574616 (1996-11-01), Becker et al.
patent: 6731491 (2004-05-01), Schultz
patent: 2006/0018075 (2006-01-01), Schultz

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