Wolf, Greenfield & Sacks
Magnetic head device including crosstalk prevention circuit
 Crosstalk prevention means or short-circuit means is connected in parallel to an erasing coil for erasing part of data prior to recording the data by a read/write coil, whereby a cancelling magnetic flux for erasing a crosstalk magnetic flux is generated to improved an S/N ratio. 
Mitsubishi Denki Kabushiki Kaisha
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inventional inventional inventional inventional
Yasuhide Masaru Naoto
Kasagi Nishimura Sugawara