Dynamic magnetic information storage or retrieval – Head – Plural gaps
Patent
1983-01-06
1986-11-25
Wolff, John H.
Dynamic magnetic information storage or retrieval
Head
Plural gaps
360125, G11B 516, G11B 520
Patent
active
046252509
ABSTRACT:
A multi-track magnetic head comprises a first core half having a plurality of thin film cores made by thin film forming technique, and a second core half having a plurality of block cores and a plurality of block spacers which are stacked in advance. The first and second core halves are assembled so that they face each other. Each of the block cores has a U-shaped recess so that the block core is spaced from the thin film core except for both ends thereof. A coil of each head may be made of spiral coil pattern conductive layer deposited on the thin film core with an interposition of an insulating film, or may be a wire wound around the body of the block core.
REFERENCES:
patent: 3986210 (1976-10-01), Sugaya et al.
patent: 4190872 (1980-02-01), Jones, Jr. et al.
patent: 4219855 (1980-08-01), Jones, Jr.
patent: 4422117 (1983-12-01), Nomura et al.
patent: 4423451 (1983-12-01), Chi
patent: 4458279 (1984-07-01), Katz
Victor Company of Japan , Limited
Wolff John H.
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