Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1994-01-21
1996-02-20
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Head
Hall effect
360126, G11B 5127
Patent
active
054934648
ABSTRACT:
A thin-film magnetic head includes a recording unit for generating a magnetic flux at a recording gap, which flux is used to magnetically record information on a magnetic disk, and a reproducing unit for reproducing information at a reproducing gap from the magnetic disk, wherein the recording unit and the reproducing unit are integrated with each other in a state where an interval between the center of the recording gap and the center of the reproducing gap is equal to or less than 2 .mu.m. In addition, a thin-film magnetic head includes a recording unit for generating a magnetic flux used to magnetically record information on a magnetic disk, the recording unit having a soft magnetic layer used as one of magnetic poles for generating the magnetic flux, and a reproducing unit for reproducing information from the magnetic disk, the reproducing unit being separated by the soft magnetic layer from the recording unit, wherein the soft magnetic layer has a saturation magnetic flux density greater than 1.3 tesla.
REFERENCES:
patent: 5132859 (1992-07-01), Andricacos
patent: 5168409 (1992-12-01), Koyama
patent: 5287237 (1994-02-01), Kitada
Fujitsu Limited
Heinz A. J.
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