发明名称 |
Optisches Informationsaufzeichnungsmedium und Verfahren zur seiner Herstellung |
摘要 |
An optical information recording medium according to the present invention includes at least one information layer (12) in which a first dielectric film (15) that contains Cr, O and at least one element (M1) selected from Zr and Hf, a recording film (16) that is provided on the first dielectric film and changed in optical property reversibly by irradiation of laser beams, and a second dielectric film (17) that is provided on the recording film and contains Cr, O and the at least one element (M1) selected from Zr and Hf, are provided in this order from a side on which laser beams are incident. The first dielectric film has a Cr atom concentration of at least 6 at%, the second dielectric film has a Cr atom concentration of at least 9 at%, and the Cr atom concentration of the second dielectric film is larger than the Cr atom concentration of the first dielectric film. |
申请公布号 |
DE60317958(T2) |
申请公布日期 |
2008.12.18 |
申请号 |
DE2003617958T |
申请日期 |
2003.03.19 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO. LTD. |
发明人 |
NISHIHARA, TAKASHI;KOJIMA, RIE;YAMADA, NOBORU |
分类号 |
G11B7/2578;G11B7/24;G11B7/24038;G11B7/243;G11B7/2433;G11B7/253;G11B7/2534;G11B7/254;G11B7/2542;G11B7/257;G11B7/258;G11B7/2585;G11B7/259;G11B7/26 |
主分类号 |
G11B7/2578 |
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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