Flying-type composite magnetic head having magnetic core with im

Details Flying-type composite magnetic head having magnetic core with im Flying-type composite magnetic head having magnetic core with im

1989-01-23

1991-04-16

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360122, 360126, G11B 560

Patent

active

050087673

ABSTRACT:
A flying-type composite magnetic head includes a slider made of a non-magnetic ceramic and having side rails extending longitudinally on both lateral sides of the head; a slit extending longitudinally in one of the side rails; and a magnetic core constituted by a pair of core pieces bonded to each other with a first glass and fixed in the slit with a second glass on both sides of the core. At least one of the opposing surfaces of the core pieces is formed with an Fe-Al-Si thin layer and the opposing surfaces of the core pieces constitute a magnetic gap of the magnetic core. Gaps formed on both sides of the magnetic core in a region exposed to an air-bearing surface of the head are filled with the second glass to improve the flatness of the air-bearing surface of the head.

REFERENCES:
patent: 4870521 (1989-09-01), Okabayashi

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