发明授权
- 专利标题: Optical recording medium and optical recording-reproducing method
- 专利标题(中): 光记录介质和光记录再现方法
-
申请号: US10758481申请日: 2004-01-16
-
公开(公告)号: US07245576B2公开(公告)日: 2007-07-17
- 发明人: Katsutaro Ichihara , Sumio Ashida , Keiichiro Yusu , Kenji Todori , Takayuki Tsukamoto
- 申请人: Katsutaro Ichihara , Sumio Ashida , Keiichiro Yusu , Kenji Todori , Takayuki Tsukamoto
- 申请人地址: JP Tokyo
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权: JP2003-011174 20030120
- 主分类号: G11B7/24
- IPC分类号: G11B7/24
摘要:
An optical recording medium includes an optical recording layer, a separating layer formed on a reproducing light incident side of the optical recording layer, and a phase-change reproducing layer formed on the reproducing light incident side of the separating layer, absorbance of which phase-change reproducing layer is changed depending on whether a state of the optical recording layer is a recording mark or a space. A transfer portion to which a state of the optical recording layer is transferred is formed in a portion having high absorbance of the phase-change reproducing layer by irradiation with reproducing light, while a portion of the phase-change reproducing layer other than the transfer portion is kept in a state optically differing from the transfer portion.
公开/授权文献
信息查询
IPC分类: