Magnetic head and reproducing apparatus with head having central

Details Magnetic head and reproducing apparatus with head having central Magnetic head and reproducing apparatus with head having central

1997-02-13

1999-11-02

Renner, Craig A.

Dynamic magnetic information storage or retrieval

Head

Coil

360126, G11B 517, G11B 531

Patent

active

059781866

ABSTRACT:
A magnetic head includes a first, second and third magnetic core of a soft magnetic film formed by a thin film forming method. One end of the first and second magnetic core face a magnetic recording medium and are disposed with a predetermined distance therebetween. The third magnetic core is disposed between the first and second magnetic cores. A conductive coil is wound around the third magnetic core. A conductive wire passes through the third magnetic core and is insulated therefrom. A DC-biased high-frequency constant current flows through the conductive wire to reproduce information recorded on the magnetic recording medium. Also, a recording signal is applied to the conductive coil.

REFERENCES:
patent: 3150358 (1964-09-01), Newman et al.
patent: 3881194 (1975-04-01), Heaslett et al.
patent: 4423450 (1983-12-01), Hamilton
patent: 4672493 (1987-06-01), Schewe
patent: 4787003 (1988-11-01), Nakamura et al.
patent: 5153796 (1992-10-01), Gooch
patent: 5181149 (1993-01-01), Kasumata et al.
patent: 5210668 (1993-05-01), Sillen et al.

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