Magnetic head for perpendicular magnetization

Details Magnetic head for perpendicular magnetization Magnetic head for perpendicular magnetization

1984-02-17

1987-01-27

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360110, 360122, G11B 5127, G11B 5187

Patent

active

046398104

ABSTRACT:
A magnetic head for perpendicular magnetization has a pair of first and second blocks each composed of a nonmagnetic body and a ferromagnetic yoke joined together, a thin ferromagnetic film sandwiched between the first and second blocks, a coil wound around the thin film and the yoke of the first block, and a third ferromagnetic block attached to the first block remotely from the thin film and the second block. In a playback mode, a closed magnetic path is formed through a magnetic recording medium, the thin film, the yoke of the first block, and the third block.

REFERENCES:
patent: 4383284 (1983-05-01), Isshiki
Patents Abstracts of Japan, vol. 6, No. 34, (P-104) (912), Mar. 2, 1982; & JP-A-56 153 516, JP-A-56 153 517, (Tokyo Shibaura Denki K.K.) 27-11-1981.
Patents Abstracts of Japan, vol. 5, No. 154, (P-82) (826), Sep. 29, 1981; & JP-A-56 87 217 (Tokyo Shibaura Denki K.K.) 15.07.1981.

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