Magneto-optical recording medium having in-plane magnetizing...

Dynamic optical information storage or retrieval – Optical storage medium structure

Reexamination Certificate

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C369S013390

Reexamination Certificate

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10886673

ABSTRACT:
A high-density magneto-optical recording medium having excellent jitter properties is provided. A pattern-dependent shift of the length of a recorded mark does not occur even when a minute mark has increased sensitivity to a recording magnetic field. A magneto-optical recording medium has at least a displacement layer, a memory layer, and an auxiliary memory layer. A mark with a length up to the diffraction-limit of the optical system is recorded and read out. The magneto-optical recording medium includes an in-plane magnetization-inducing layer principally made of cobalt on the auxiliary memory layer.

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Tsutomu Shiratori et al., “High-Density Magneto-Optical Recording with Domain Wall Displacement Detection”,J. Magn. Soc. Jpn., vol. 22, Supplement No. S2 (1998), pp. 47-50.

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