Magnetic information detecting apparatus

Details Magnetic information detecting apparatus Magnetic information detecting apparatus

1996-06-17

1997-12-16

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

3242072, 32420721, 324252, 338 32R, 360 89, G11B 533, G11B 5008, G01P 342

Patent

active

056992149

ABSTRACT:
A magnetic information detecting apparatus is disclosed including a recording medium in which magnetic information is recorded and a magnetic field detection unit for detecting the magnetic information, the magnetic field detection unit having its magnetic field detecting section formed of a magnetoresistive element or a Hall element, the magnetic field detecting section surrounding peripheries of the recording medium. The recording medium has a substantially circular cross section. The magnetoresistive element has a structure of an artificial multilayer film formed by alternately stacking a conductor layer and a magnetic layer. The magnetic field detection unit has a soft magnetic body for conducting a magnetic field to the magnetic field detecting section.

REFERENCES:
patent: 2476110 (1949-09-01), Neufeld
patent: 2590627 (1952-04-01), Lenehan
patent: 2655561 (1953-10-01), Connell
patent: 2655562 (1953-10-01), Clark
patent: 3274575 (1966-09-01), Koster
patent: 4593209 (1986-06-01), Sloan
patent: 5450106 (1995-09-01), Morioka et al.

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