Magnetic head device for providing high recording densities at h

Details Magnetic head device for providing high recording densities at h Magnetic head device for providing high recording densities at h

1991-03-13

1993-04-13

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

G11B 5187

Patent

active

052028070

ABSTRACT:
A magnetic head device includes a magnetic head having a sliding surface on which a magnetic tape slides. The sliding surface has a magnetic gap formed on the vertex portion thereof in a manner to allow the magnetic gap itself to record or reproduce information signal on or from the magnetic tape. Defining that .alpha. is an angle formed between a tangent drawn at the vertex portion of the sliding surface and a tangent drawn at the end portion of the sliding surface, .beta. is an angle formed between the inflow direction of the magnetic tape to the sliding surface and the tangent drawn at the vertex portion of the sliding surface and T is tension applied on the magnetic tape per unit width, the form of the magnetic head and the location and tension of the magnetic tape are arranged so that a parameter value obtained by an equation of T.times.sin (.beta.-.alpha.) is in the range of 0.02 gf/mm to 0.15 gf/mm.

REFERENCES:
patent: 4839959 (1989-06-01), Mersing
patent: 4888657 (1989-12-01), Lacey et al.

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