Recording head for single layer magnetic film perpendicular magn

Details Recording head for single layer magnetic film perpendicular magn Recording head for single layer magnetic film perpendicular magn

1997-07-25

1999-07-06

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Head

Head surface structure

360125, 360135, G11B 5187

Patent

active

059204494

ABSTRACT:
A recording head for a magnetic medium having a single layer magnetic film having an axis of easy magnetization in a direction inclined from an in-plane direction of the magnetic medium includes a leading pole provided on the upstream side in a direction of movement of the medium, and a trailing pole having an end cooperating with the end of the leading pole to define a small gap therebetween and a rear end portion held in contact with the leading pole. The trailing pole is provided on the downstream side in the direction of movement of the medium. The recording head further includes a coil wound around the contacting portions of the leading pole and the trailing pole. The distance between the end of the trailing pole and the medium is set larger by more than a predetermined length than the distance between the end of the leading pole and the medium.

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patent: 5726841 (1998-03-01), Tong et al.
patent: 5729412 (1998-03-01), Uemura et al.

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