发明名称 |
INFORMATION RECORDED MEDIUM, DEVICE FOR READING THE INFORMATION, INFORMATION RECORDED MEDIUM TRANSFER FOIL, AND METHOD FOR PRODUCING INFORMATION RECORDED MEDIUM |
摘要 |
<p>An information recording medium (10) comprises a base sheet (2a), a resin layer (2) formed on the base sheet (2a) and having a holographic region (6) provided with a diffraction grating (4) in a regular or irregular arrangement, and a ferromagnetic thin film (3) formed on the holographic region (6) of the resin layer (2). The ferromagnetic thin film (3) has a specific magnetic characteristic dependent on a holographic pattern formed in the holographic region (6). The magnetic characteristics of the ferromagnetic thin film are converted into signals corresponding to the holographic pattern. <IMAGE></p> |
申请公布号 |
EP1152369(B1) |
申请公布日期 |
2007.03.21 |
申请号 |
EP19990943394 |
申请日期 |
1999.09.17 |
申请人 |
DAI NIPPON PRINTING CO., LTD. |
发明人 |
IWAMOTO, YOJI;NAKAMURA, OSAMU;HAOTO, DAISAKU;KAKU, KENJIRO |
分类号 |
G11B5/80;B42D15/00;B42D15/10;D21H21/42;G01B7/34;G01N27/87;G01R33/12;G06K17/00;G06K19/06;G06K19/08;G06K19/10;G06K19/12;G06K19/16;G09F3/02;G09F3/10;G11B5/62;G11B7/24;G11B7/26 |
主分类号 |
G11B5/80 |
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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