发明名称 |
PRERECORDED OPTICAL RECORDING MEDIUM |
摘要 |
<p>[Object] To provide a durable read-only optical recording medium having less variances in characteristics of a metal reflective film due to a temporal change. [Solving Means] Provided is a read-only optical recording medium (100) including: a substrate (101); an information recording surface onto which information is recorded by combining pits (P) and lands (L); and a metal reflective film (102) that is provided in contact with the information recording surface and represented by Al 100-x-z X x Z z , where x and z each represent an atomic%, X is constituted of an element including at least Ti, Z is constituted of an element including at least Fe, x is 1.0 to 3.0, and z is 0.05 to 1.0.</p> |
申请公布号 |
EP2437261(A1) |
申请公布日期 |
2012.04.04 |
申请号 |
EP20100780212 |
申请日期 |
2010.05.17 |
申请人 |
SONY CORPORATION;SONY DADC CORPORATION |
发明人 |
SAKAMOTO, TETSUHIRO;NAKANO, JUN;ENDO, TAKEHIDE;OKAWA, NAOKI |
分类号 |
G11B7/258;G11B7/24 |
主分类号 |
G11B7/258 |
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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