发明名称 |
Optical information recording medium, and manufacturing method, recording method, and recording apparatus thereof |
摘要 |
A recording medium has at least a recording layer on a transparent substrate. The recording layer has at least a first phase-changeable film and a second phase-changeable film in that order, starting on the side closest to the transparent substrate. The first phase-changeable film and the second phase-changeable film each contains at least 10 atom % and no more than 50 atom % germanium and at least 45 atom % and no more than 60 atom % tellurium. Also at least one of the phase-changeable films contains bismuth. |
申请公布号 |
US7431973(B2) |
申请公布日期 |
2008.10.07 |
申请号 |
US20050059657 |
申请日期 |
2005.02.17 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KITAURA HIDEKI;YAMADA NOBORU;KOJIMA RIE |
分类号 |
B32B3/02;G11B7/0045;G11B7/0055;G11B7/24 |
主分类号 |
B32B3/02 |
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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