Dynamic magnetic information storage or retrieval – Head
Patent
1985-02-01
1988-06-14
Hecker, Stuart N.
Dynamic magnetic information storage or retrieval
Head
360123, 360125, 360126, 360111, G11B 5127, G11B 517, G11B 531, G11B 533
Patent
active
047515988
ABSTRACT:
A thin-film, cross-field, closed-flux, anisotropic electromagnetic field device for recording images on and reading them from magnetic media, such as a magnetic disk, tape or drum. The device is characterized by two orthogonally related conductors which couple electromagnetically with magnetic coupling structure. One portion of such structure substantially completely surrounds one of the conductors relative to the direction of current flow therein, this portion being anisotropic, and having an easy axis of magnetization that parallels such current flow. With the device in use, this easy axis is intended for operative coupling alignment normally relative to the recording surface in the selected recording medium.
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patent: 3633188 (1972-01-01), Bittmann
patent: 3683407 (1972-08-01), Paul et al.
patent: 3829894 (1974-08-01), Watanabe et al.
patent: 4092688 (1978-05-01), Nomura et al.
patent: 4137554 (1979-01-01), McClure
Censtor Corporation
Hecker Stuart N.
Urcia Benjamin E.
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