| 发明名称 |
Conductive video disc |
| 摘要 |
A video disc comprises a grooved disc having video information in the form of a surface relief pattern within the groove, the disc made from a plastic material containing finely divided conductive particles such that the bulk resistivity at 900 MHz is less than 500 ohm-centimeters.
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| 申请公布号 |
US4561087(A) |
申请公布日期 |
1985.12.24 |
| 申请号 |
US19790105550 |
申请日期 |
1979.12.20 |
| 申请人 |
RCA CORPORATION |
发明人 |
FOX, LEONARD P.;DATTA, PABITRA;MATTHIES, DENNIS L.;KAWAMOTO, HIROHISA |
| 分类号 |
C08K3/04;G11B9/06;G11B11/22;(IPC1-7):G11B11/08 |
主分类号 |
C08K3/04 |
| 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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