Optical information recording or playbacking system, optical head apparatus used in the system and method for recording or playbacking optical information,申请号EP19970106207-传众专利搜索

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发明名称	Optical information recording or playbacking system, optical head apparatus used in the system and method for recording or playbacking optical information
摘要
申请公布号	EP0802529(B1)	申请公布日期	2001.09.26
申请号	EP19970106207	申请日期	1997.04.15
申请人	NEC CORPORATION	发明人	YAMANAKA, YUTAKA
分类号	G11B7/00;G11B7/125;G11B7/135;(IPC1-7):G11B7/135	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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