Thin film magnetic head for a bidirectionally moveable recording

Details Thin film magnetic head for a bidirectionally moveable recording Thin film magnetic head for a bidirectionally moveable recording

1989-06-19

1991-11-26

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Plural gaps

360122, 360126, 360104, G11B 528

Patent

active

050687603

ABSTRACT:
A thin film magnetic head includes first and second head chips, each of the head chips having a substrate, a reproducing head portion and a recording head portion provided in a side edge portion on the substrate, and a protecting plate covering the reproducing head portion and the recording head portion. The reproducing head portion and the recording head portion are formed of a lower magnetic layer, an electroconductive coil layer, an upper magnetic layer and insulation layers interposed therebetween, deposited in stacked relation on the substrate one after another. The first and second head chips are arranged in side-by-side relation and are inverted with respect to each other so that the recording head portion in the first head chip and the reproducing head portion in the second head chip being form a recording/reproducing head portion for a first travelling direction of a magnetic recording medium, and the reproducing head portion in the first head chip and the recording head portion in the second head chip form a recording/reproducing head portion for a second or reverse travelling direction of the recording medium.

REFERENCES:
patent: 4159493 (1979-06-01), Ohta et al.
patent: 4539615 (1985-09-01), Arai et al.
patent: 4677036 (1987-06-01), Nakamura et al.
patent: 4797767 (1989-01-01), Baus, Jr.
patent: 4862304 (1984-08-01), Yunoki et al.
Nortronics Design Digest for Digital Magnetic Recording, form #9212, 1971, pp. 1-33.

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