发明名称 |
PREFORMATTED OPTICAL RECORDING MEDIUM AND METHOD OF PRODUCING THE SAME |
摘要 |
An improved art of producing an optical recording medium by utilizing a photo-etching technique is disclosed. Pits pattern of address for guide groove and sector on each of tracks of optical recording medium to be preformatted is formed in accordance with a photo-etching process or a resist lift-off process. A film of optical recording medium is formed on a transparent base plate and it is then subjected to photo-etching process or alternatively to resist lift-off process to form preformatted pits pattern. |
申请公布号 |
EP0239188(A3) |
申请公布日期 |
1988.05.04 |
申请号 |
EP19870300511 |
申请日期 |
1987.01.21 |
申请人 |
KYODO PRINTING CO., LTD. |
发明人 |
FUJITA, MINORU;FUKUSHIMA, YOICHI |
分类号 |
B42D15/02;B42D15/10;G03C5/00;G03F7/00;G03F7/26;G06K19/06;G11B7/0033;G11B7/24;G11B7/26;(IPC1-7):G11B7/26 |
主分类号 |
B42D15/02 |
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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