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US 5,492,794 AGranted
Information recording medium
AssigneeNEC Corporation
InventorsYoshitaka Kawanishi, Tatsunori Ide
Life of this patent
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Abstract
An information recording medium includes a recording thin film formed on a substrate. The recording thin film consists of a material containing cobalt, antimony, and tellurium as main components, and an energy beam is irradiated on the recording thin film to change optical characteristics of the recording thin film, thereby recording information.
Claims9
An information recording medium comprising:
- a recording thin film formed on a substrate, said recording thin film consisting of a material containing cobalt, antimony, and tellurium in one of the following relationships:
- (Sb.sub.2 Te.sub.3).sub.1-a (Co.sub.2 Te.sub.3).sub.a
- where 0<a<1;
- and
- (Sb.sub.2).sub.1-b Co.sub.b
- where 0<b<1;
- said recording thin film recording information in accordance with an energy beam irradiated thereon which changes optical characteristics of said recording thin film.
4 more elements
Dependencies are inferred from the claim text.