Tunnel erase magnetic head assembly

Details Tunnel erase magnetic head assembly Tunnel erase magnetic head assembly

1984-07-16

1987-09-01

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Head

Plural gaps

360118, G11B 5265, G11B 5024

Patent

active

046912606

ABSTRACT:
A magnetic head assembly comprises a recording-reproducing head and erasing heads placed at both sides of said recording-reproducing head and the magnetic field strength of the erasing gap of one of the erasing heads which move adjacent data produced by a recording-reproducing gap is made different from that of the erasing gap of the other erasing gap to control a data area to be erased.

REFERENCES:
patent: 3882544 (1975-05-01), Hughes
patent: 4058846 (1977-11-01), Knutson et al.
patent: 4176384 (1979-11-01), Yang
patent: 4276574 (1981-06-01), Baasch et al.
patent: 4318146 (1982-03-01), Ike et al.
patent: 4367505 (1983-01-01), Stromsta et al.
patent: 4506308 (1985-03-01), Furuichi et al.
patent: 4613920 (1986-09-01), Higuchi et al.

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