Recording magnetic head and magnetic storage device using...

Details Recording magnetic head and magnetic storage device using... Recording magnetic head and magnetic storage device using...

2006-03-21

2006-03-21

Castro, Angel (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

07016149

ABSTRACT:
According to the present invention, a recording magnetic head suitable for increasing a surface recording density and having a large recording magnetic field and a small recording blur is provided. A lower magnetic pole layer and an upper magnetic pole layer opposing the lower magnetic pole layer are formed, and a lower sub magnetic pole composed of a plurality of magnetic layers is formed along a medium facing face on the lower magnetic pole layer. The lengths in a direction perpendicular to the medium facing face of the respective magnetic layers forming the lower sub magnetic pole are longer as the respective magnetic layers get further away from the upper magnetic pole layer.

REFERENCES:
patent: 4815197 (1989-03-01), Ota et al.
patent: 4926276 (1990-05-01), Orikasa et al.
patent: 5473491 (1995-12-01), Fujisawa et al.
patent: 6091582 (2000-07-01), Komuro et al.
patent: 6356410 (2002-03-01), Chesnutt et al.
patent: 6407885 (2002-06-01), Ahagon et al.
patent: 6456461 (2002-09-01), Sato
patent: 6487041 (2002-11-01), Yamanaka et al.
patent: 6530141 (2003-03-01), Komuro et al.
patent: 6650503 (2003-11-01), Chen et al.
patent: 6751052 (2004-06-01), Tagawa et al.
patent: 2001/0000446 (2001-04-01), Mino
patent: 2001/0013992 (2001-08-01), Tagawa et al.
patent: 2001/0043445 (2001-11-01), Nishida et al.
patent: 2002/0071209 (2002-06-01), Watanabe et al.
patent: 246 706 (1987-11-01), None
patent: 379 248 (1990-07-01), None

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