Method of manufacturing magnetic record/reproduce head

Details Method of manufacturing magnetic record/reproduce head Method of manufacturing magnetic record/reproduce head

1975-03-03

1976-10-05

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

65 33, 65 43, 65 56, G11B 542

Patent

active

039836223

ABSTRACT:
Precision-lapped pieces of ceramic and ferrite are stacked together with pieces of ceramic-convertible glass. Firing of the stack causes the glass to devitrify and results in a comb-less track array assembly having precise track and track-to-track dimensions. The assembly is then processed to form part of a magnetic record and/or reproduce head.

REFERENCES:
patent: 3611557 (1971-10-01), Hardardt et al.
patent: 3660892 (1972-05-01), Tanaka et al.
patent: 3687650 (1972-08-01), Case et al.
patent: 3737294 (1973-06-01), Dumbaugh, Jr. et al.
patent: 3760494 (1973-09-01), Lang, Jr..
patent: 3770403 (1973-11-01), Maries et al.
patent: 3789505 (1974-02-01), Huntt
patent: 3807042 (1974-04-01), Braitberg et al.
patent: 3824685 (1974-07-01), Burch et al.
patent: 3893189 (1975-07-01), Kroon

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