发明名称 |
Optical information recording medium, method for producing the medium, and method and apparatus for recording information using the medium |
摘要 |
An optical information recording medium of the present invention includes a transparent substrate and a multi-layered film provided on the transparent substrate. The multi-layered film includes at least a recording layer that is changed between two or more different states capable of being detected by irradiation with a light beam, and a light absorbing layer in this order from a side close to the transparent substrate. The recording layer contains a material represented by a formula: Gex(BiySb1-y)2Tex+3 (where x>=5 and 0<y<=1) as a main component. Such a multi-layered film including a recording layer also is applicable to a multi-layered recording medium including a first information layer to an N-th information layer (N is an integer of 2 or more) disposed on a transparent substrate in this order from a side close to the transparent substrate. In this case, at least one of the first information layer to the N-th information layer has the same configuration as that of the multi-layered film.
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申请公布号 |
US2004191686(A1) |
申请公布日期 |
2004.09.30 |
申请号 |
US20040808962 |
申请日期 |
2004.03.24 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KITAURA HIDEKI;YAMADA NOBORU;KOJIMA RIE;SAKAGUCHI TAKESHI |
分类号 |
G11B7/0045;(IPC1-7):G11B13/00 |
主分类号 |
G11B7/0045 |
代理机构 |
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主权项 |
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地址 |
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