Magnetic head used in magnetooptical recording

Details Magnetic head used in magnetooptical recording Magnetic head used in magnetooptical recording

1995-12-05

1997-03-25

Dinh, Tan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, G11B 1300

Patent

active

056151837

ABSTRACT:
A magnetic head includes a substrate, a magnetic pole formed on the substrate and a two-layered magnetic field generation coil. A conductive wire is sequentially wound around a core sandwiched between regulating members from its middle portion from the inner periphery side toward the outer periphery side while the two end portions of the conductive wire are simultaneously rotated in opposite directions, so that the two-layered magnetic field generation coil is provided.

REFERENCES:
patent: 4870521 (1989-09-01), Okabayashi
patent: 5233492 (1993-08-01), Iwata et al.
patent: 5260845 (1993-11-01), Takayama et al.
patent: 5270888 (1993-12-01), Collisson et al.
patent: 5313444 (1994-05-01), Ishii et al.
Nakao, et al., "High Speed Overwritable Magneto-Optic Recording," Japanese Jour. App. Phys., vol. 26, No. 26-4, Apr. 1987, pp. 149 through 154.
Abstract and drawings of Japanese patent document 4-119503, Derwent Database WPI, Section Ch, Week 9222, Apr. 1992.
PCT/FR90/00386, Magnetic Field Modulation Control Circuit For Recording a Magneto-Optic Memory, 13 Dec. 1990.

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