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发明名称
Optical information recording medium in which a protective layer comprises a mixture layer containing ZnS and SiO2
摘要
申请公布号
EP0516178(B1)
申请公布日期
1997.03.19
申请号
EP19920109178
申请日期
1992.06.01
申请人
NEC CORPORATION
发明人
ITOH, MASAKI
分类号
G11B7/257;G11B7/243;G11B7/253;G11B7/254;G11B11/10;G11B11/105;(IPC1-7):G11B7/24
主分类号
G11B7/257
代理机构
代理人
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地址
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