发明名称 |
Optical information recording medium |
摘要 |
<p>An optical information recording medium is provided having a superior jitter property even when an organic substance is used for a recording layer. The optical information recording medium has a substrate having a penetrating hole in a central portion thereof and a spiral pre-groove provided in one surface of the substrate, a reflection layer provided on the surface of the substrate in which the pre-groove is provided, a recording layer which is provided on the reflection layer and which is composed of an organic substance including a dye, and a light transmissive cover layer provided on the recording layer. In the optical information recording medium, the cover layer is formed from a curable resin and has an elastic modulus of 40 MPa or less at 25°C in an interface region facing the recording layer.</p> |
申请公布号 |
EP1923881(A2) |
申请公布日期 |
2008.05.21 |
申请号 |
EP20070254409 |
申请日期 |
2007.11.08 |
申请人 |
TAIYO YUDEN CO., LTD. |
发明人 |
OTSU, TAKESHI;MIYATA, AKIMASA;HAGIWARA, MOTOMITSU;MATSUDA, ISAO;HARA, FUMI;KATO, SHINGO;KODAIRA, TAKUO |
分类号 |
G11B7/257;G11B7/246;G11B7/247;G11B7/253;G11B7/258 |
主分类号 |
G11B7/257 |
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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