Wear-resistant magnetic heads

Details Wear-resistant magnetic heads Wear-resistant magnetic heads

1980-08-18

1982-03-16

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

29603, 360125, G11B 522, G11B 542, H01F 706

Patent

active

043204279

ABSTRACT:
The present invention relates to a wear-resistant head and a method of producing same. Such a wear-resistant magnetic heads has at least one magnetic-core holder with at least one magnetic core embedded therein. At least that surface of the magnetic core or cores presentable to a recording carrier is composed of a metallic, magnetically-conducting substance deposited by a plasma coating process, or alternatively is of a magnetically non-conducting substance deposited by a plasma coating process, said substance completely surrounding the magnetic core.

REFERENCES:
patent: 3566045 (1971-02-01), Paine et al.
patent: 3614339 (1971-10-01), Schneider
patent: 3665436 (1972-05-01), Murray et al.
patent: 3668775 (1972-06-01), Morita et al.
patent: 3683126 (1972-08-01), Krause
patent: 3781834 (1973-12-01), Ginkel et al.
patent: 3928908 (1975-12-01), Case
patent: 3999216 (1976-12-01), Berchtold
patent: 4079430 (1978-03-01), Fujishima et al.
IBM Tech., Disc. Bull., E. A. Bartkus et al., Wear Resistant and Contamination-Free Coating, vol. 17, No. 8, Jan. 1975, p. 2212.
IBM Tech., Disc. Bull., E. W. Smathers, Magnetic Head Fabrication, vol. 18, No. 12, May 1976, pp. 3910-3911.

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