发明名称 |
Optical information recording medium |
摘要 |
The present invention provides an optical information recording medium that includes a substrate including a groove with a track pitch of 200 to 400 nm and a groove depth of 20 to 150 nm and having successively disposed thereon a light reflecting layer, a recording layer containing a dye in which information is recorded by irradiation with a laser beam having a wavelength of no greater than 450 nm, an adhesive layer, and a cover layer with a thickness of 0.01 to 0.5 mm. A surface of the optical information recording medium on a side disposed with the cover layer has a center surface average roughness (SRa 1 ) of no greater than 3.0 nm when measured over a large surface area and a center surface average roughness (SRa 2 ) of no greater than 3.0 nm when measured over a minute surface area.
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申请公布号 |
US7129019(B2) |
申请公布日期 |
2006.10.31 |
申请号 |
US20020176088 |
申请日期 |
2002.06.21 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
KAKUTA TAKESHI;SAITO SHINJI;ISHIDA TOSHIO;OZAWA TAKAKO;DOUSHITA HIROAKI |
分类号 |
G11B7/24;G11B7/007;G11B7/24079;G11B7/246;G11B7/2467;G11B7/247;G11B7/2472;G11B7/2478;G11B7/253;G11B7/2532;G11B7/2533;G11B7/2534;G11B7/2535;G11B7/258;G11B7/259 |
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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