发明名称 |
Optical information recording medium, original disc for optical information recording medium, and method of manufacturing the same |
摘要 |
An optical information recording medium, which includes both of a land surface and a groove surface as a recording track and presents high signal quality. The optical information recording medium includes both a land and a groove as the recording track on a substrate, in which a laser light is irradiated from a reverse side of the substrate to thereby carry out a recording and a reproduction, and an inclination angle of a groove side is 25° or more and 40° or less, and both of arithmetic average roughness (Ra) on the land surface and the groove surface are assumed to be 0.2 to 0.7 nm.
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申请公布号 |
US2005028184(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20040928186 |
申请日期 |
2004.08.30 |
申请人 |
SONY CORPORATION |
发明人 |
TAKEMOTO HIROYUKI;ARIMA MITSUO;SUZUKI TADAO;FUKUSHIMA YOSHIHITO;NAKAYAMA HIROSHI;TAKEUCHI ATSUSHI |
分类号 |
G11B7/24;G11B7/007;G11B7/26;G11B11/105;(IPC1-7):G11B11/00;C23F1/00;C03C15/00;B44C1/22;C03C25/68 |
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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