Optical information recording medium

Details Optical information recording medium Optical information recording medium

2008-09-24

2010-11-16

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S288000, C369S283000, C720S718000

Reexamination Certificate

active

07835257

ABSTRACT:
An optical information recording medium includes a disk-like substrate having a hole in a central portion thereof, and a light-reflective layer, a dye recording layer containing an organic dye, an intermediate layer composed of an inorganic substance, and a light-transmissive layer composed of a resin disposed in that order on one principal surface of the substrate, in which information is recorded/reproduced by irradiation of laser light from the light-transmissive layer side. In the optical information recording medium, the light-transmissive layer covers a surface of the intermediate layer from an inner peripheral edge of the intermediate layer to an outer peripheral edge of the intermediate layer, and a vicinity of an outer peripheral edge of the light-transmissive layer is in contact with the substrate in an annular region extending around an outer peripheral side of the substrate.

REFERENCES:
patent: 5082690 (1992-01-01), Miyake et al.
patent: 7062776 (2006-06-01), Takazawa
patent: 7154844 (2006-12-01), Usami
patent: 2008/0123512 (2008-05-01), Katayama
patent: 0398662 (1990-05-01), None
patent: 2006-147135 (2006-06-01), None

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