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经营范围
发明名称
Optical pickup
摘要
申请公布号
EP1494227(B1)
申请公布日期
2011.05.18
申请号
EP20040253991
申请日期
2004.07.01
申请人
RICOH COMPANY, LTD.
发明人
HIRAI, HIDEAKI;NASUKAWA, TOSHIMICHI;UMEKI, KAZUHIRO
分类号
G02B5/18;G11B7/135;G02B3/08;G02B5/30;G11B7/00;G11B7/125;G11B11/00
主分类号
G02B5/18
代理机构
代理人
主权项
地址
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