发明名称 |
INFORMATION SIGNAL RECORDING CARRIER |
摘要 |
PURPOSE:To improve SN ratio of recording discs of the type of emitting signals by making use of macroscopical differences in reflectance and make possible contribution to volume production by selectively heating and radiating a specific metal element vapor deposition film with light beams. |
申请公布号 |
JPS5424604(A) |
申请公布日期 |
1979.02.24 |
申请号 |
JP19770090191 |
申请日期 |
1977.07.26 |
申请人 |
MITSUBISHI ELECTRIC CORP |
发明人 |
SUGAWARA HIROSHI;KUBO TAKAHIRO;ISHII KENJI |
分类号 |
G11B7/243;G02B27/00;G03G5/00;G11B23/00 |
主分类号 |
G11B7/243 |
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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