Magnetic head to effect high density magnetic recording

Details Magnetic head to effect high density magnetic recording Magnetic head to effect high density magnetic recording

1985-09-19

1987-10-20

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

360119, 360120, 360127, G11B 522, G11B 542

Patent

active

047018194

ABSTRACT:
A magnetic head having a pair of core halves each combined through a magnetic gap, each of the core halves comprising a core base having slanted side surfaces on the side opposing to the magnetic gap and a magnetic thin layer formed on the surfaces of the core base on the side opposing the magnetic gap with magnetic material of high saturation magnetic flux density, the minimum value of the sum of products of vertical cross sectional areas of the respective magnetic paths of each of the core halves except for the path of the magnetic gap and the respective saturation magnetic flux densities of the respective parts is greater than the product of the area of the magnetic gap and the saturation magnetic flux density of the magnetic thin layer.

REFERENCES:
patent: 4152741 (1979-05-01), Mizuno et al.
patent: 4559572 (1985-12-01), Kumasaka et al.

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