Information recording medium with SiO2-In2O3-SnO2-ZnS...

Details Information recording medium with SiO2-In2O3-SnO2-ZnS... Information recording medium with SiO2-In2O3-SnO2-ZnS...

2005-02-08

2005-02-08

Watko, Julie Anne (Department: 2652)

Dynamic optical information storage or retrieval

Optical storage medium structure

Disk protection

Reexamination Certificate

active

06854126

ABSTRACT:
In an information recording medium, a first protective layer, a recording film, a second protective layer and a reflective layer are provided on a substrate sequentially from a side where light is irradiated, the first protective layer having a film thickness of 2 nm to 25 nm. 95 atomic % or more of a material of the first protective layer is SiO2—In2O3—SnO2—ZnS, and a ZnS amount in the first protective layer is in the range of 4 mol % to 33 mol %.

REFERENCES:
patent: 62-239443 (1987-10-01), None
patent: 3-240590 (1991-10-01), None
patent: 5-174435 (1993-07-01), None
patent: 5-234133 (1993-09-01), None
patent: 2001-266408 (2001-09-01), None

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