Magnetic disc device

Details Magnetic disc device Magnetic disc device

1990-01-11

1991-10-22

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 9801, 360108, G11B 555, G11B 2108

Patent

active

050601008

ABSTRACT:
A magnetic disc device of half-height type has a base, four magnetic discs disposed one above the other on the base, five head arms rotatable about a pivot for seeking motion on both surfaces of each magnetic disc, eight magnetic heads each attached to an end of the head arm through springs facing a surface of each disc, a rotational drive unit for swinging the head arms, a main printed circuit board disposed on a rear side of the base, and a cover which covers an upper surface of the base.

REFERENCES:
patent: Re32702 (1988-06-01), Hasler et al.
patent: 3931641 (1976-01-01), Watrous
patent: 4161004 (1979-07-01), Dalziel
patent: 4194225 (1980-03-01), Hasler
patent: 4196456 (1980-04-01), Manzke
patent: 4352134 (1982-09-01), Burns
patent: 4367502 (1983-01-01), Iftikar
patent: 4415821 (1983-11-01), Wedman
patent: 4568988 (1986-02-01), McGinlay et al.
patent: 4647997 (1987-03-01), Westwood
patent: 4700250 (1987-10-01), Kuriyama
patent: 4707754 (1987-11-01), Patel
patent: 4716478 (1987-12-01), Walsh
patent: 4739429 (1988-04-01), Seki
patent: 4739430 (1988-04-01), Manzke
patent: 4805055 (1989-02-01), Wright
Nikkei Electronics, 1985.9.23, pp. 153-172.

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