Dynamic magnetic information storage or retrieval – Head – Head surface structure
Patent
1982-11-24
1986-02-18
Wolff, John H.
Dynamic magnetic information storage or retrieval
Head
Head surface structure
360125, G11B 522
Patent
active
045716528
ABSTRACT:
A magnetic recording and reproducing apparatus comprises a magnetic head having magnetic cores in which at least portions thereof in the vicinity of a gap are made of M.sub.n -Z.sub.n ferrite single crystal and planes of the magnetic cores forming a principal magnetic circuit are formed by {110} planes of the ferrite and <100> directions contained in the {110} planes are inclined to a surface facing a magnetic recording medium, and means for relatively moving the magnetic recording medium in an opposite and parallel direction to a projection vector on said surface facing said recording medium, of a vector directed from a site far from the surface facing the magnetic recording medium to a site near said surface in the <100> direction projected on the surface facing the magnetic recording medium. The present magnetic recording and reproducing apparatus exhibits both high wear resistance and excellent read/write characteristic.
REFERENCES:
patent: 3810245 (1974-05-01), Ozawa et al.
patent: 3931642 (1976-01-01), Kugimija et al.
patent: 4246619 (1981-01-01), Hirai et al.
patent: 4450494 (1984-05-01), Fujiwara et al.
Fujiwara Hideo
Kudo Mitsuhiro
Kumasaka Noriyuki
Otomo Shigekazu
Shinagawa Kiminari
Hitachi , Ltd.
Wolff John H.
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