发明名称 |
Optical information recording disc and apparatus for driving the disc. |
摘要 |
<p>An optical information recording disc having at least one substrate (1) for recording/reproducing an information through an optical unit is disclosed in which a spindle hole (50) through which a spindle (11) provided in a disc drive system is formed in a central portion of the substrate (1). An engagement member (4; 31; 33; 35; 36; 38) engageable with a disc engagement member (14; 21, 21a; 32; 34; 37; 39) integrally formed with the spindle (11) is formed around the central portion. In addition an associated disc drive apparatus is disclosed in which the disc engagement member is formed in a spindle (11).</p> |
申请公布号 |
EP0335465(A2) |
申请公布日期 |
1989.10.04 |
申请号 |
EP19890200782 |
申请日期 |
1989.03.28 |
申请人 |
HITACHI MAXELL LTD.;HITACHI, LTD. |
发明人 |
SUZUKI, MASAHIRO;SONOBE, TAKEO;KURANE, KOREAKI;SAITO, AKIRA |
分类号 |
G11B7/24;G11B17/028;G11B23/00 |
主分类号 |
G11B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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