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经营范围
发明名称
Information processing apparatus and optical head incorporated therein
摘要
申请公布号
EP0432779(B1)
申请公布日期
1997.04.09
申请号
EP19900124127
申请日期
1990.12.13
申请人
HITACHI, LTD.
发明人
TSUBOI, NOBUYOSHI;SATO, YOSHIO;MINEMURA, HIROYUKI;ANDOH, HISASHI;NAGAI, MASAICHI;IKUTA, ISAO;KATOU, YOSHIMI;MAEDA, YOSHIHITO;SUGITA, TATSUYA;SUGITA, YUTAKA
分类号
G11B7/004;G11B7/00;G11B7/0033;G11B7/0055;G11B7/08;G11B7/12;G11B7/135;G11B7/24;G11B23/03;(IPC1-7):G11B7/24
主分类号
G11B7/004
代理机构
代理人
主权项
地址
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