Device for reading and writing on a magnetic medium

Details Device for reading and writing on a magnetic medium Device for reading and writing on a magnetic medium

1989-04-13

1991-02-12

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360126, G11B 560

Patent

active

049928970

ABSTRACT:
A device for reading and writing of information on a magnetic medium such as a disk or tape comprises at least one reading and writing head placed on a base having a catamaran type profile. The head is composed of a magnetic circuit (a winding on a medium) self-positioned and welded to the walls of a hole made in the base, a flow concentrator in contact with the extremities of the magnetic circuit and a pole piece made up of two magnetic parts separated by a magnetic spacer. The pole piece is positioned opposite to the track of the magnetic medium.

REFERENCES:
patent: 3564522 (1971-02-01), Stevens, Jr.
patent: 3601871 (1971-08-01), Pierce
patent: 3672043 (1972-06-01), Trimble et al.
patent: 4698708 (1987-10-01), Lazzari
patent: 4809103 (1989-02-01), Lazzari
Patent Abstracts of Japan, vol. 1, No. 103, Sep. 13, 1977, p. 3310 E 77 (Hitachi Seisakusho K.K.).
Patent Abstracts of Japan, vol. 11, No. 299 (P-621) Sep. 29, 1987.
Patent Abstracts of Japan, vol. 2, No. 56, Apr. 25, 1978, p. 1427 E 78.

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