Stock material or miscellaneous articles – Circular sheet or circular blank
Patent
1998-07-21
2000-12-26
Evans, Elizabeth
Stock material or miscellaneous articles
Circular sheet or circular blank
428 642, 428 644, 428412, 428913, 4304951, 430945, 369288, B32B 302
Patent
active
061655783
ABSTRACT:
An optical information recording medium includes a first substrate; at least a first dielectric layer and a recording layer for signal recording provided on a surface of the first substrate; and a second substrate. The first substrate and the second substrate are assembled together in the state of being warped in planar symmetry and flattened. The first dielectric layer and the recording layer is interposed between the first substrate and the second substrate.
REFERENCES:
patent: 5862121 (1999-01-01), Suzuki
Isomura Hidemi
Moteki Akihiro
Ohno Eiji
Evans Elizabeth
Matsushita Electric - Industrial Co., Ltd.
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