Combination probe and ring head for vertical recording

Details Combination probe and ring head for vertical recording Combination probe and ring head for vertical recording

1988-03-16

1990-01-30

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360121, 360122, G11B 5127, G11B 5187

Patent

active

048977497

ABSTRACT:
A vertically recording write probe and read ring head. A ring pole is mounted adjacent a vertical recording probe pole. The ring pole tip is made thin such that it saturates on write and does not affect performance of the probe pole. The ring pole tip is separated from the probe tip by a small read gap. The probe pole and ring pole are connected in a back gap region so that the combination reads like a conventional read head.

REFERENCES:
patent: 3394361 (1968-07-01), Hahs
patent: 3639699 (1972-02-01), Tieman
patent: 3867368 (1975-02-01), Lazzari
patent: 4210946 (1980-07-01), Iwasaki et al.
patent: 4277809 (1981-07-01), Fisher et al.
patent: 4404609 (1983-09-01), Jones, Jr.
patent: 4639811 (1987-01-01), Diepers et al.
patent: 4644432 (1987-02-01), Heim
patent: 4652957 (1987-03-01), Schewe et al.
patent: 4672493 (1987-05-01), Schewe

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