Disk drive with magnetic head for perpendicular magnetic...

Details Disk drive with magnetic head for perpendicular magnetic... Disk drive with magnetic head for perpendicular magnetic...

2006-04-18

2006-04-18

Watko, Julie Anne (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07031120

ABSTRACT:
A disk drive of a perpendicular magnetic recording system uses a double-layered disk medium including a soft magnetic layer. This disk drive is configured to suppress any adverse effect on a read head element under a magnetic field of a magnetic disturbance applied in a perpendicular direction, which might be caused to occur by being accentuated by a soft magnetic layer.

REFERENCES:
patent: 6618227 (2003-09-01), Yano et al.
patent: 6636390 (2003-10-01), Funayama et al.
patent: 2002/0089796 (2002-07-01), Tanaka
patent: 10-222836 (1998-08-01), None
patent: 2000-011303 (2000-01-01), None
patent: 2000-90424 (2000-03-01), None
patent: 2000-090424 (2000-03-01), None
patent: 2001-101651 (2001-04-01), None
Japanese Office Action dated Feb. 8, 2005 for Appln. No. 2002-223523.

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