Thin-film, cross-field, closed-flux, anisotropic electromagnetic field device
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United States of America Patent
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Jun 14, 1988
Grant Date -
N/A
app pub date -
Feb 1, 1985
filing date -
Feb 1, 1985
priority date (Note) -
Expired
status (Latency Note)
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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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