Method of recording/reproducing information on a recording...

Dynamic information storage or retrieval – Systems having plural physically distinct independent tracks... – Having layered storage medium

Reexamination Certificate

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Details

C369S275200, C369S283000, C369S288000

Reexamination Certificate

active

07035190

ABSTRACT:
An information recording medium includes a first information layer and a second information layer. The first information layer includes a first recording layer in which a reversible phase change is caused between a crystalline phase and an amorphous phase by irradiation of a laser beam or application of current. The second information layer includes a second recording layer in which a reversible phase change is caused between a crystalline phase and an amorphous phase by the irradiation of the laser beam or the application of the current. The first recording layer is made of a first material, the second recording layer is made of a second material, and the first material is different from the second material.

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“Basic and Application of Optical Disk Storage” by Yoshito Tsunoda et al., The Institute of Electronics, Information and Communication Engineers, 1995, Chapter 2 with partial English translation.
“Wave Optics” by Hiro Kubota, Iwanami-Shorten, 1971, Chapter 3 with partial English translation.

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