Magnetic head for magnetic recording and reproducing unit

Details Magnetic head for magnetic recording and reproducing unit Magnetic head for magnetic recording and reproducing unit

1988-04-01

1989-12-19

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

360119, 360122, 360127, G11B 531, G11B 5187, G11B 523

Patent

active

048886580

ABSTRACT:
In a magnetic head comprising a head gap and a magnetic core composed of both a high permeability ferrite and a magnetic alloy, said magnetic alloy being disposed in the vicinity of said head gap,
the improvement comprising a corrugation provided at a junction portion between said ferrite and said magnetic alloy, a height of said corrugation being not less than a value of the longest wavelength of luminance signals and color signals recorded on a magnetic recording medium, a distance defined between adjacent two crests or bottoms of said corrugation being smaller than a width of a head track.

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