发明名称 |
Optical information medium, making method, recording/reading method, and inspecting method |
摘要 |
In an optical information medium comprising a supporting substrate, an information recording layer thereon, and a light-transmitting layer wherein a recording/reading laser beam enters the recording layer through the light-transmitting layer, the light-transmitting layer is formed of a resin and has a tensile strength at break of 5-40 MPa, a tensile elongation at break of 15-100%, and a tensile modulus of 40-1,000 MPa. The medium has improved recording/reading characteristics when a laser beam defines a beam spot having a small diameter of up to 300 mum and the medium is rotated at a high linear velocity of at least 8 m/s.
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申请公布号 |
US2002015378(A1) |
申请公布日期 |
2002.02.07 |
申请号 |
US20010887434 |
申请日期 |
2001.06.25 |
申请人 |
TDK CORPORATION |
发明人 |
KOMAKI TSUYOSHI;HIRATA HIDEKI;KATO TATSUYA |
分类号 |
G11B7/24;G11B7/004;G11B7/095;G11B7/254;G11B7/257;G11B7/26;(IPC1-7):G11B7/24 |
主分类号 |
G11B7/24 |
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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