Recording/reproducing separated magnetic head with concave...

Details Recording/reproducing separated magnetic head with concave... Recording/reproducing separated magnetic head with concave...

2006-01-31

2006-01-31

Heinz, A. J. (Department: 2653)

Dynamic magnetic information storage or retrieval

Fluid bearing head support

Disk record

C360S122000, C360S235700

Reexamination Certificate

active

06992860

ABSTRACT:
Protrusion of head elements to an air bearing surface is effectively reduced and their contact with a recording medium is thereby prevented by forming a level gap (concave) of about 3 nm in a multilayered protective film on the air bearing surface in a part matching an inductive write thin film head in a recording/reproducing separated type magnetic head and thereby offsetting protrusion of the head elements to the air bearing surface due to thermal deformation of the heads.

REFERENCES:
patent: 5978176 (1999-11-01), Ezaki et al.
patent: 6396663 (2002-05-01), Kasamatsu
patent: 2002/0109942 (2002-08-01), Otsuka
patent: 04-366408 (1992-12-01), None
patent: 04-368408 (1992-12-01), None
IEEE Transactions On Magnetics, vol. 38, No. 1, Jan. 2002, pps. 101-106, PUST, et a. “Thermomechianical Head Performance”.

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