A DIFFRACTION OPTICAL ELEMENT AND OPTICAL PICK-UP DEVICE USING THEREOF,申请号KR20040089831-传众专利搜索

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发明名称	A DIFFRACTION OPTICAL ELEMENT AND OPTICAL PICK-UP DEVICE USING THEREOF
摘要
申请公布号	KR100570866(B1)	申请公布日期	2006.04.06
申请号	KR20040089831	申请日期	2004.11.05
申请人	SAMSUNG ELECTRO-MECHANICS CO., LTD.	发明人	ARIYOSHI TETSUO;JEONG, HO SEOP;JUNG, SOO JIN
分类号	G11B7/135	主分类号	G11B7/135
代理机构		代理人
主权项
地址

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