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US 9,165,590 B2Granted
Minute structure and information recording medium
AssigneeRicoh Company, Ltd.
InventorTetsuji Mori
Life of this patent
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Abstract
There is disclosed a minute structure including a sulfur compound and a silicon oxide. There is also disclosed a write-once information recording medium including a substrate and a recording layer formed of a mixed inorganic material and deposited on the substrate, wherein the mixed inorganic material contains a sulfur compound and a silicon oxide.
Claims2
An information recording medium, comprising:
- a substrate;
- and
- a mixed inorganic material that is deposited on the substrate,
- wherein the mixed inorganic material contains a sulfur compound and a silicon oxide, and
- wherein the information recording medium includes minute structures, wherein the minute structures contain the mixed inorganic material,
- wherein the information recording medium is encoded with information, and wherein the minute structures are configured to emit fluorescent light in response to irradiation of the information recording medium, to thereby reproduce the information from the information recording medium,
- wherein each of the minute structures has a hemispherical configuration,
- wherein the mixed inorganic material further contains an inorganic material which is different from the sulfur compound and the silicon oxide and chosen from among a metal, a semimetal, and a semiconductor, and
- wherein the inorganic material which is different from the sulfur compound and the silicon oxide includes fluorescent material for emitting the fluorescent light in response to the irradiation of the information recording medium, such that the minute structures contain the fluorescent material, to thereby reproduce the information from the information recording medium, and wherein the fluorescent material includes CdSe or CdTe.
6 more elements
Dependencies are inferred from the claim text.