Scratch-off material layer applied on optical recording media

Details Scratch-off material layer applied on optical recording media Scratch-off material layer applied on optical recording media

2005-05-31

2005-05-31

Dinh, Tan (Department: 2653)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C428S064400

Reexamination Certificate

active

06901043

ABSTRACT:
An optical recording medium having a scratch-off material layer includes a transparent substrate, a reflective layer formed on the transparent substrate, a protective layer formed on the reflective layer, information formed on a surface of the protective layer, and at least one opaque scratch-off material layer formed on the protective layer for disguising the information.

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patent: 6052465 (2000-04-01), Gotoh et al.
patent: 2003/0054128 (2003-03-01), Sako et al.
patent: 2003/0185128 (2003-10-01), Shoji et al.
patent: 2122053 (1992-11-01), None
patent: 2462501 (2001-11-01), None

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