发明授权
US5870374A Multi-layer optical disc having a pair of substrates spaced by an
adhesive material
失效
多层光盘，其具有由粘合剂材料隔开的一对基板
- 专利标题： Multi-layer optical disc having a pair of substrates spaced by an adhesive material
- 专利标题（中）： 多层光盘，其具有由粘合剂材料隔开的一对基板
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申请号： US917995申请日： 1997-08-25
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公开(公告)号： US5870374A公开(公告)日： 1999-02-09
- 发明人: Isao Satoh , Yoshihisa Fukushima , Yuji Takagi , Yasushi Azumatani , Hiroshi Hamasaka
- 申请人： Isao Satoh , Yoshihisa Fukushima , Yuji Takagi , Yasushi Azumatani , Hiroshi Hamasaka
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX1-283241 19891030
- 主分类号： G11B7/00
- IPC分类号： G11B7/00 ; G11B7/004 ; G11B7/007 ; G11B7/085 ; G11B7/09 ; G11B7/24 ; G11B7/26
摘要：
A multi-layered optical disk comprising a plurality of recording layers accumulated in the thickness direction wherein a light beam is focused on one of tracks of one of the layers thereby to record and reproduce data, the optical disk being characterized in that recording layers each have an identification section storing an address of the recording layer which the identification section belongs to.