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发明名称
Phase-change type optical disk device and optical head to be used therein
摘要
申请公布号
EP0572981(B1)
申请公布日期
1998.10.07
申请号
EP19930108804
申请日期
1993.06.01
申请人
NEC CORPORATION
发明人
OKADA, MITSUYA
分类号
G11B7/00;G11B7/005;G11B7/135;G11B7/24;G11B7/243;G11B7/30;(IPC1-7):G11B7/00
主分类号
G11B7/00
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