Composite magnetic head having minimal crosstalk, maximal head o

Details Composite magnetic head having minimal crosstalk, maximal head o Composite magnetic head having minimal crosstalk, maximal head o

1996-10-30

1998-08-04

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Head

Core

360103, 360121, 360123, G11B 5265

Patent

active

057903530

ABSTRACT:
A composite magnetic head having a head chip including an erasing core, a recording/reproducing core and a center core disposed between the erasing core and the recording/reproducing core. The erasing core is joined to the center core via a first nonmagnetic material which forms an erasing gap, and the recording/reproducing core is joined to the center core via a second nonmagnetic material which forms a recording/reproducing gap. The composite magnetic head has an erasing coil, a recording/reproducing coil, a first back bar for magnetically coupling the erasing core with the center core, and a second back bar for magnetically coupling the recording/reproducing core with the center core. The composite magnetic head satisfies both of following conditional expressions:

REFERENCES:
patent: 5148342 (1992-09-01), Kato et al.
patent: 5148343 (1992-09-01), Sugawara et al.
patent: 5181150 (1993-01-01), Hayakawa et al.
patent: 5251089 (1993-10-01), Hara
patent: 5450264 (1995-09-01), Nishimura et al.

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