Magnetic disk device having a write head to write by...

Details Magnetic disk device having a write head to write by... Magnetic disk device having a write head to write by...

2006-06-06

2006-06-06

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Reexamination Certificate

active

07057838

ABSTRACT:
In the present invention, by making the width of the write element larger than the track pitch and securing a write magnetic field strong enough to reverse the magnetization of the magnetic layer, and further by writing while shifting a write head comprising the write element, a magnetic disk drive, of which the track width is narrower than the write element width, and the storage capacity is large, is realized.

REFERENCES:
patent: 4949199 (1990-08-01), Yunoki
patent: 5889630 (1999-03-01), Karube et al.
patent: 5940237 (1999-08-01), Takagi
patent: 58-171702 (1983-10-01), None
patent: 59-168905 (1984-09-01), None
patent: 63-191304 (1988-08-01), None
patent: 4-067402 (1992-03-01), None
patent: 6-84284 (1994-03-01), None
patent: 9-138987 (1997-05-01), None
Title Page with abstract PCT/JP98/03929 filed Sep. 2, 1998 entitledInformation Recording/Reproducing Device.

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