发明名称 |
Phase change optical recording medium and process for manufacturing same |
摘要 |
In a phase change optical recording medium in which writing, reading and/or erasing of information is conducted by utilizing change of phase of a recording layer by irradiation with light, the recording layer is made of a material containing oxygen in an amount of 1 to 30 atomic %; or the recording medium comprises an additional transparent dielectric layer 1 to 10 nm thick between the recording layer and the underlying transparent dielectric layer and the inserted transparent dielectric layer in contact with the recording layer comprising oxygen in a molar ratio greater than a molar ratio of oxygen in the underlying transparent dielectric layer; or the transparent dielectric layer underlying and in contact with the recording layer comprises oxygen in a molar ratio greater than a molar ratio of oxygen in the other transparent dielectric layer. <IMAGE> |
申请公布号 |
EP0874361(A3) |
申请公布日期 |
1999.04.07 |
申请号 |
EP19980302975 |
申请日期 |
1998.04.17 |
申请人 |
TEIJIN LIMITED |
发明人 |
EBINA, ATSUSHI;HORIGUCHI, TORU;TOMIE, TAKASHI |
分类号 |
G11B7/0045;G11B7/006;G11B7/24;G11B7/243;G11B7/253;G11B7/2534;G11B7/254;G11B7/2542;G11B7/257;G11B7/258;G11B7/2585;G11B7/26 |
主分类号 |
G11B7/0045 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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