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US4949198A Thermomagnetic recording head and mode of embodiment 失效
热磁记录头及实施方式

Thermomagnetic recording head and mode of embodiment
Abstract:
Thermomagnetic recording head for use in magnetic tape recording, comprising a layer of a ferromagnetic material set in the vicinity of a magnetic recording medium. A heating means is used to heat the layer of ferromagnetic material locally to a temperature that reaches the Curie point of the ferromagnetic material. Each heated zone is thus demagnetized and constitutes a recording gap for the recording medium.
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