发明名称 |
Optically recordable carrier |
摘要 |
In an optically recordable carrier having a substrate and an optical record layer on the substrate, the optical record layer is enveloped, at all of its surfaces with a protective film of inorganic material by which the resistance to corrosion of the optical record layer is improved considerably.
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申请公布号 |
US4807220(A) |
申请公布日期 |
1989.02.21 |
申请号 |
US19870038765 |
申请日期 |
1987.04.15 |
申请人 |
SONY CORP. |
发明人 |
MIYAI, SEIICHI;AKAMATSU, JUNICHI |
分类号 |
G11B11/10;G11B7/24;G11B11/105;(IPC1-7):G11B3/70 |
主分类号 |
G11B11/10 |
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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