Focus error detection system for an optical head,申请号EP19970115455-传众专利搜索

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法人/股东/高管

发明名称	Focus error detection system for an optical head
摘要
申请公布号	EP0829857(A3)	申请公布日期	2000.01.12
申请号	EP19970115455	申请日期	1997.09.05
申请人	NEC CORPORATION	发明人	YAMANAKA, YUTAKA
分类号	G03B13/36;G02B7/28;G11B7/09;G11B7/13;G11B7/135;(IPC1-7):G11B7/09	主分类号	G03B13/36
代理机构		代理人
主权项
地址

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