Optical information recording medium

Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier

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428 65, 4284111, 428688, 428913, 430945, 346 76L, 3461351, 3692752, 369286, B32B 302

Patent

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053467400

ABSTRACT:
An optical information recording medium comprising a substrate, and a dielectric layer, a recording layer, a dielectric layer and a reflective layer which are laminated on the substrate in this order or a reflective layer, a dielectric layer, a recording layer and a dielectric layer which are laminated on the substrate in this order, wherein a state of the recording layer is reversibly changed between optically recognizable states by irradiation of, for example, a laser beam and the recording layer has a thickness of from 1 nm to 10 nm, which recording medium has improved recording sensitivity.

REFERENCES:
patent: 4954379 (1990-09-01), Nishida et al.
patent: 5171618 (1992-12-01), Suzuki
patent: 5206114 (1993-04-01), Kobayashi
patent: 5234737 (1993-08-01), Ueno et al.
Ohta et al. SPIE vol. 1316, Optical Data Storage, p. 367 (1990).
Young et al., Journal of Applied Physics, vol. 60, p. 4319 (Dec. 1986).

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