Magnetic head and magneto-optical recording device

Details Magnetic head and magneto-optical recording device Magnetic head and magneto-optical recording device

1996-12-19

1997-12-30

Levy, Stuart S.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360 59, 360114, 360110, G11B 5012, G11B 1110

Patent

active

057038406

ABSTRACT:
An E-shaped core is composed of a main core and side cores which are combined into one piece. A coil is wound around a bobbin which is inserted in the main core. A plate-shaped auxiliary core is connected to a sliding member. Connecting the E-shaped core and the auxiliary core completes the assembly of the magnetic head for a magneto-optical recording device. The auxiliary core surrounds the main core; therefore, the concentration of the magnetic flux at the end of the main core can be enhanced and the efficiency for generating magnetic field for a recording medium can be improved. In addition, the use of the E-shaped core and the plate-shaped auxiliary core permits easier machining of the cores.

REFERENCES:
patent: 4796241 (1989-01-01), Hayakawa et al.
patent: 5103351 (1992-04-01), Kazama et al.
patent: 5239425 (1993-08-01), Kazama

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