Claims
- 1. A magneto-optical recording medium comprising
- a) a substrate transparent to an incident light,
- b) a recording layer formed over a major surface of said substrate, and having a plurality of magnetic domains for storing data bits,
- c) a reflection layer formed over said recording layer wherein said reflection layer has a thickness ranging from 500 angstroms to 1,000 angstroms, and wherein said reflection layer comprises a silver-magnesium alloy containing magnesium in an amount ranging from 1 atom % to 5 atom %, wherein the surface of said silver-magnesium alloy is coated with magnesium oxide.
- 2. The magneto-optical recording medium according to claim 1, wherein the reflection layer has a reflectance of 90% or more.
- 3. An optical recording medium comprising
- a) a base film having an array of pits formed in a surface portion thereof for storing information, and transparent to an incident light,
- b) a reflection layer formed on said surface portion of said base film, wherein said reflection layer has a thickness ranging from 500 angstroms to 1,000 angstroms, and wherein said reflection layer comprises a silver-magnesium alloy containing magnesium in an amount ranging from 1 atom % to 5 atom %, wherein the surface of said silver-magnesium alloy is coated with magnesium oxide, and
- c) a protective film formed on said reflection layer.
- 4. The optical recording medium according to claim 3, wherein the reflection layer has a reflectance of 90% or more.
Priority Claims (2)
Number |
Date |
Country |
Kind |
5-120689 |
Apr 1993 |
JPX |
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6-98046 |
Apr 1994 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/402,845 filed Mar. 13, 1995 now abandoned which is a divisional of application Ser. No. 08/231,484 filed on Apr. 22, 1994 now abandoned.
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2161254 |
Hensel et al. |
Jun 1939 |
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4786559 |
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Nov 1988 |
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Country |
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04038737 |
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Non-Patent Literature Citations (1)
Entry |
CA 82:23849 Savitskii, E.M. et al Splavy Redk. Met. Osobymi Fiz. Svoistvami, Mater. Vses. Soveshch. 1974 pp. 129-130. |
Divisions (1)
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Number |
Date |
Country |
Parent |
231484 |
Apr 1994 |
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Continuations (1)
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Number |
Date |
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Parent |
402845 |
Mar 1995 |
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