发明名称 |
INFORMATION RECORDING PLATE |
摘要 |
PURPOSE:To prevent drop-out of information owing to deposition of dust, etc. by laminating a light shielding type information recording medium and a protecting film on a transparent substrate of more than 0.2mm in thickness to form an information recording plate and opening holes in the recording medium from the transparent substrate side by the use of a laser beam thereby recording the information. |
申请公布号 |
JPS5441703(A) |
申请公布日期 |
1979.04.03 |
申请号 |
JP19770107815 |
申请日期 |
1977.09.09 |
申请人 |
HITACHI LTD |
发明人 |
OSHIDA YOSHISADA;YONEZAWA SEIJI |
分类号 |
B41M5/26;G03G5/00;G11B7/24;G11B7/254;G11B7/257;G11B7/26 |
主分类号 |
B41M5/26 |
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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