| 发明名称 |
PRODUCTION OF INFORMATION RECORDING MEDIUM MASTER DISC |
| 摘要 |
PURPOSE:To produce an information recording medium master disc wherein spiral guide grooves are formed by directly forming a given beam-sensitive material film which does not dissolve a beam-sensitive material film on the top surface of said film. |
| 申请公布号 |
JPS5296521(A) |
申请公布日期 |
1977.08.13 |
| 申请号 |
JP19760013716 |
申请日期 |
1976.02.10 |
| 申请人 |
VICTOR COMPANY OF JAPAN |
发明人 |
TAKEHARA HIDEAKI;KUNIYOSHI HIDEO |
| 分类号 |
G11B7/26;G11B9/10;G11B23/00 |
主分类号 |
G11B7/26 |
| 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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