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公开(公告)号：EP1973111A1
公开(公告)日：2008-09-24
申请号：EP07706622.3
申请日：2007-01-11
发明人： HORIE, Michikazu , KIYONO, Kenjirou , KUBO, Masae
CPC分类号： G11B7/2467 , G11B7/2492 , G11B7/2578 , G11B7/259 , G11B2007/24612 , G11B2007/25706 , Y10T428/21
摘要： Provided is an extremely high-density optical recording medium with excellent jitter characteristics and good recording/reproducing characteristics.
An optical recording medium 20 comprises a substrate 21 with a guide groove formed therein, a layer 23 with a light reflection function, a recording layer 22 comprising a dye as a main component with a light absorption function for a wavelength of recording/reproducing light in an unrecorded state, and a cover layer 24 capable of transmitting the recording/reproducing light incident to the recording layer 22, in the order mentioned; an interlayer 30 containing at least one element selected from the group consisting of Ta, Nb, V, W, Mo, Cr and Ti, is provided between the layer 23 with the light reflection function and the recording layer 22.摘要翻译： 提供具有优异的抖动特性和良好的记录/再现特性的极高密度光学记录介质。 光学记录介质20包括其中形成有引导槽的基板21，具有光反射功能的层23，包括染料作为主要成分的记录层22，该记录层22具有用于记录/再现光的波长的光吸收功能 未记录状态和能够将记录/再现光入射到记录层22的覆盖层24以所述的顺序传送; 在具有光反射功能的层23和记录层22之间设置含有选自Ta，Nb，V，W，Mo，Cr和Ti中的至少一种元素的中间层30。
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公开(公告)号：EP1973111B1
公开(公告)日：2010-10-27
申请号：EP07706622.3
申请日：2007-01-11
发明人： HORIE, Michikazu , KIYONO, Kenjirou , KUBO, Masae
CPC分类号： G11B7/2467 , G11B7/2492 , G11B7/2578 , G11B7/259 , G11B2007/24612 , G11B2007/25706 , Y10T428/21
摘要： Provided is an extremely high-density optical recording medium with excellent jitter characteristics and good recording/reproducing characteristics. An optical recording medium 20 comprises a substrate 21 with a guide groove formed therein, a layer 23 with a light reflection function, a recording layer 22 comprising a dye as a main component with a light absorption function for a wavelength of recording/reproducing light in an unrecorded state, and a cover layer 24 capable of transmitting the recording/reproducing light incident to the recording layer 22, in the order mentioned; an interlayer 30 containing at least one element selected from the group consisting of Ta, Nb, V, W, Mo, Cr and Ti, is provided between the layer 23 with the light reflection function and the recording layer 22.
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公开(公告)号：EP2091042A1
公开(公告)日：2009-08-19
申请号：EP07832706.1
申请日：2007-11-28
发明人： SASAKI, Hidehiro , KUBO, Masae , KIYONO, Kenjirou
CPC分类号： G11B7/24079 , G11B7/00736 , G11B7/261
摘要： Stable focus servo and tracking servo are realized in an information recording medium having a plurality of recording regions having different track pitches and groove shapes.
An information recording medium having a recording track formed by a concave-convex pattern, wherein the recording track includes a first recording region R1, a second recording region R2 and a recording region transition section Sx arranged between the first recording region R1 and the second recording region R2; a track pitch tp1, a groove width w1 and a groove depth d1 in the first recording region R1, and a track pitch tp2, a groove width w2 and a groove depth d2 in the second recording region R2 satisfy the following formula (1) and the following formulae (2) and/or (3): 0 tp 1 - tp 2 0 w 1 - w 2 0 d 1 - d 2
the recording region transition section Sx includes a track pitch transition section Stp in which the track pitch changes from tp1 to tp2 and a groove shape transition section Sg in which the groove width changes from w1 to w2 and/or the groove depth changes from d1 to d2;
the track pitch transition section Stp and the groove shape transition section Sg at least partially overlap to share a region SL.摘要翻译： 在具有不同轨道间距和槽形状的多个记录区域的信息记录介质中实现稳定聚焦伺服和跟踪伺服。 一种信息记录介质，具有由凹凸图案形成的记录磁道，其中记录磁道包括第一记录区域R1，第二记录区域R2和布置在第一记录区域R1和第二记录区域之间的记录区域过渡区段Sx 区R2; 第一记录区域R1中的轨道间距tp1，槽宽度w1和槽深度d1，第二记录区域R2中的轨道间距tp2，槽宽度w2和槽深度d2满足下式（1）和 以下公式（2）和/或（3）：0
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公开(公告)号：EP2065210A1
公开(公告)日：2009-06-03
申请号：EP07806778.2
申请日：2007-09-05
发明人： KUBO, Masae , KIYONO, Kenjirou , NAKAMURA, Takeshi
CPC分类号： G11B7/248 , G11B7/24079 , G11B7/2492 , G11B7/2533 , G11B7/2578 , G11B7/259 , G11B7/266 , G11B2007/25706
摘要： An optical recording medium is provided which has excellent jitter characteristics and satisfactory recording/reproducing characteristics and is capable of extremely high-density recording. Theopticalrecordingmedium 20 comprises a substrate 21 having a guide groove and the following layers formed on the substrate 21 in the following order: a layer 23 having a light-reflecting function, a recording layer 22 containing a specific porphyrin compound as a main component, and a cover layer 24 capable of transmitting a recording/reproducing light entering the recording layer 22, wherein when a portion of the guide groove at a side far from a surface where a recording/reproducing light beam enters the cover layer 24, is represented as a recording groove portion, then a recording pit portion formed in the recording groove portion, has a higher reflective optical intensity than the recording groove portion in an unrecorded state.
摘要翻译： 提供了一种光学记录介质，其具有优异的抖动特性和令人满意的记录/再现特性，并且能够进行非常高密度的记录。 光学记录介质20包括具有引导槽的衬底21和在衬底21上以下列顺序形成的以下层：具有光反射功能的层23，包含特定卟啉化合物作为主要成分的记录层22和 覆盖层24，其能够传输进入记录层22的记录/再现光，其中当远离记录/再现光束进入覆盖层24的表面一侧的导槽的一部分表示为记录层 那么形成在记录凹槽部分中的记录凹坑部分具有比未记录状态下的记录凹槽部分更高的反射光强度。
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