Magnetic head with a tape contacting surface having a metal fill

Details Magnetic head with a tape contacting surface having a metal fill Magnetic head with a tape contacting surface having a metal fill

1989-05-31

1991-01-15

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

360119, G11B 5187

Patent

active

049857967

ABSTRACT:
There is disclosed herein a magnetic head comprising a ring-like magnetic core composed of first and second magnetic core halves made of a ferrite and held in abutment against each other so as to form a magnetic gap therebetween and an elongated tape-contact surface extending across the magnetic gap. The magnetic core has in the tape-contact surface a channel formed to as to extend in the direction across the magnetic gap and the channel is filled with a magnetic metal material having a high-saturation magnetization. Preferably, the channel has a substantially V-shaped cross section. The magnetic gap exposed on the tape-contact surface is surrounded by the magnetic metal material and non-magnetic glass members provided at both ends of the magnetic gap. The non-magnetic glass members are provided so that the track width is constant from the tape-contact surface to an upper end of a winding hole of the ring-like magnetic core.

REFERENCES:
patent: 4799118 (1989-01-01), Yamada

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