Thin film magnetic head for perpendicular magnetic recording...

Details Thin film magnetic head for perpendicular magnetic recording... Thin film magnetic head for perpendicular magnetic recording...

2005-04-21

2008-08-05

Heinz, Allen (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C360S125150

Reexamination Certificate

active

07408740

ABSTRACT:
A thin-film magnetic head for perpendicular magnetic recording according to the present invention comprises a coil to generate a magnetic field, and a main pole layer to perform the perpendicular recording using the magnetic field generated by said coil. The lower surface as to the layer-forming direction of said main pole layer has irregularities at the medium-facing surface side end.

REFERENCES:
patent: 4541026 (1985-09-01), Bonin et al.
patent: 4672493 (1987-06-01), Schewe
patent: 6483664 (2002-11-01), Kamijima
patent: 6504675 (2003-01-01), Shukh et al.
patent: 2006/0002024 (2006-01-01), Le et al.

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