Phase-change optical information recording medium, and...

Details Phase-change optical information recording medium, and... Phase-change optical information recording medium, and...

2006-05-09

2006-05-09

Edun, Muhammad (Department: 2656)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S275100, C369S013010

Reexamination Certificate

active

07042830

ABSTRACT:
The present invention relates to a phase-change optical information recording medium comprising a recording layer which reversibly phase-changes between the crystalline phase and the amorphous phase by irradiation of a light having a recording wavelength of 390 to 430 nm, and a light transmittance thermally controllable layer showing a light transmittance varying according to temperature, in which the light transmittance increases at a rate of 0.2 to 0.7% /10° C.

REFERENCES:
patent: 5298305 (1994-03-01), Shinozuka et al.
patent: 6312780 (2001-11-01), Kasami et al.
patent: 5234136 (1993-09-01), None
Pending claims and drawings of U.S. Appl. No. 10/029,100, filed Dec. 21, 2001.

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