发明名称 |
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摘要 |
PURPOSE:To ensure a highly efficient reproduction of the modulated wave signal recorded on the magnetic thin film by performing an optical mixture detection for the record singla by use of the laser beam pair featuring the right-angled polarizing surfaces. |
申请公布号 |
JPS5923013(B2) |
申请公布日期 |
1984.05.30 |
申请号 |
JP19770063855 |
申请日期 |
1977.05.31 |
申请人 |
NIPPON TELEGRAPH & TELEPHONE |
发明人 |
ISHII AKIRA;KISHINO FUMIO;YAMAGISHI KINGO |
分类号 |
G11B11/10;G11B11/105;G11C13/06 |
主分类号 |
G11B11/10 |
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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