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61 条记录 (耗时 0.017 秒)

    Optical information recording medium
    43.
    发明公开
    Optical information recording medium 审中-公开
    Optisches Informationsaufzeichnungsmedium

    公开(公告)号：EP1229530A2

    公开(公告)日：2002-08-07

    申请号：EP02250641.4

    申请日：2002-01-30

    申请人： Ricoh Company, Ltd.

    发明人： Katoh, Masaki ,  Nakamura, Yuki ,  Yamada, Katsuyuki

    IPC分类号： G11B7/24

    CPC分类号： G11B7/243 ,  G11B7/006 ,  G11B7/126 ,  G11B7/2403 ,  G11B7/24067 ,  G11B7/2542 ,  G11B7/258 ,  G11B7/2585 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S430/146

    摘要： A phase change optical recording medium is disclosed including at least a supporting substrate, and recording layer essentially consisting of AgInSbTe alloy compositions feasible of implementing recording and readout steps utilizing the change in reflectivity. The recording medium is characterized by the relation v 0 ≥ 0.7 v WH , where the critical relative velocity of phase change, v 0 , defined by the value of v, at which the differential coefficient, - dR (v) /dv, reaches a maximum, when the recording medium moves against an optical unit during the recording steps at a relative velocity, v, ranging from minimum and maximum relative velocities warranted for the recording medium, V WL and V WH , respectively. In addition, when the reflectivity is measured with varying erase power P E at the linear relative scanning velocity v 0 , the reflectivity of the recording layer as a function of erase power, R(P E ), preferably has a minimum. The recording layer included in the recording medium is devised to have an activation energy of deterioration of equal to, or larger than 1.6 eV, which is obtained by measuring asymmetry, A, and calculating according to the equations, k = dt/ dA, and k = k 0 x exp(E a /k B T). The recording medium is also characterized by activation energy of displacement of the boundary, ranging from 1.0 eV to 2.4 eV, which is obtained from the rate of decrease in the area, S, of the amorphous regions as recorded marks with time according to Arrhenius' equation.

    摘要翻译： 公开了一种相变光学记录介质，其至少包括支撑基板和基本上由AgInSbTe合金组成的记录层，该AgInSbTe合金组合物可以利用反射率的变化实现记录和读出步骤。 记录介质的特征在于v 0‰¥0.7 v WH，其中相位变化的临界相对速度v 0由v的值定义，其中微分系数dR（v）/ dv达到 当记录介质在记录步骤期间以相对速度v从记录介质V WL和V WH所需的最小和最大相对速度的相对速度v移动时，记录介质最大。 此外，当以线性相对扫描速度v 0以不同的擦除功率P E测量反射率时，作为擦除功率的函数R（P E）的记录层的反射率优选地具有最小值。 包括在记录介质中的记录层被设计为具有等于或大于1.6eV的衰减的活化能，其通过测量不对称性A获得，并且根据等式计算k = dt / dA和 k = k 0 x exp（E a / k BT）。 记录介质的特征还在于边界位移的活化能为1.0eV至2.4eV，其从非晶区域的减小速率S得到，随着时间的推移，Arrhenius' 方程。

    Prevention of low speed recording on an optical recording medium
    45.
    发明公开
    Prevention of low speed recording on an optical recording medium 有权
    中华人民共和国电信与发展中心

    公开(公告)号：EP1130507A1

    公开(公告)日：2001-09-05

    申请号：EP01103690.2

    申请日：2001-02-23

    申请人： Ricoh Company, Ltd.

    发明人： Katoh, Masaki ,  Nakamura, Yuki ,  Yamada, Katsuyuki

    IPC分类号： G06F7/00 ,  G06F7/24 ,  G11B20/12

    CPC分类号： G11B20/10 ,  G11B7/0053 ,  G11B7/00745 ,  G11B19/04 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1258 ,  G11B27/105 ,  G11B27/24 ,  G11B27/3027 ,  G11B27/36 ,  G11B2020/10981 ,  G11B2020/1099 ,  G11B2020/1232 ,  G11B2020/1267 ,  G11B2020/1269 ,  G11B2020/1275 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2545 ,  G11B2220/2562

    摘要： A recordable optical information recording medium having an address t for each sector, comprises: an area A1 starting from an address t1 to which access is made only when a recording apparatus performs recording operation; an area A2 starting from an address t2 to which access is made either when the recording apparatus performs the recording operation or when the recording apparatus performs reproducing operation; and an area A3 starting from an address t3 to which access is made either when either the recording apparatus or a reproducing apparatus performs recording or when either the recording apparatus or the reproducing apparatus performs reproducing. The addresses t are set consecutively with respect to a physical arrangement of the sectors in each of the areas A2 and A3, and the area A1 has at least one inconsecutive part (2; 3; 4) at which the addresses t are not consecutive with respect to the physical arrangement of the sectors.

    摘要翻译： 对于每个扇区具有地址t的可记录光信息记录介质包括：仅在记录装置进行记录操作时从地址t1开始的区域A1才能进行访问; 从记录装置执行记录操作或当记录装置执行再现操作时进行访问的地址t2开始的区域A2; 以及从记录装置或再现装置执行记录时或当记录装置或再现装置进行再现时都可以进行访问的地址t3开始的区域A3。 地址t相对于区域A2和A3中的每一个扇区的物理布置连续设置，并且区域A1具有至少一个不连续部分（2; 3; 4），其中地址t不与其连续 尊重部门的实际安排。

    Optical information recording medium
    48.
    发明公开
    Optical information recording medium 有权
    光学信息记录介质

    公开(公告)号：EP1760706A1

    公开(公告)日：2007-03-07

    申请号：EP06025001.6

    申请日：2002-02-05

    申请人： Ricoh Company, Ltd.

    发明人： Ito, Kazunori ,  Yuzurihara, Hajime ,  Onagi, Nobuaki ,  Yamada, Katsuyuki ,  Narumi, Shinya

    IPC分类号： G11B7/24 ,  G11B7/007

    CPC分类号： G11B7/2403 ,  G11B7/24035 ,  G11B7/24067 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/243 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/257 ,  G11B7/258 ,  G11B7/259 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21 ,  Y10T428/215

    摘要： A phase-change optical information recording medium in which information can be recorded, reproduced and rewritten and which includes a first transparent substrate (1) having a wobbling guide groove which is spirally formed thereon at a pitch; a first dielectric layer (2) located overlying the first transparent substrate (1) and having an optical thickness of from 80 nm to 200 nm; a phase-change recording layer (3) located overlying the first dielectric layer (2) and having an optical thickness of from 20 to 50 nm when the recording layer (3) is in an erased state; a second dielectric layer (4) located overlying the recording layer (3) and having an optical thickness of from 10 nm to 70 nm; a reflection layer (5) located overlying the second dielectric layer (4); optionally a third dielectric layer (4') located between the second dielectric layer (4) and the reflection layer (5) ; and a second transparent substrate (1') located overlying the reflection layer (5).

    摘要翻译： 一种相变型光学信息记录介质，其中可以记录，再现和重写信息，并且包括：第一透明基板（1），具有以一定间距螺旋形成在其上的摆动引导槽; 位于第一透明基板（1）上并且具有80nm至200nm的光学厚度的第一介电层（2） 当记录层（3）处于擦除状态时，位于第一介电层（2）上并且具有20至50nm的光学厚度的相变记录层（3）; 位于记录层（3）上并且具有10nm至70nm的光学厚度的第二电介质层（4） 位于第二介电层（4）上的反射层（5）; 任选地位于第二介电层（4）和反射层（5）之间的第三介电层（4'）; 和位于反射层（5）上方的第二透明基板（1'）。

    Optical information recording medium
    49.
    发明公开
    Optical information recording medium 有权
    Optisches Informationsaufzeichnungsmedium

    公开(公告)号：EP1758109A1

    公开(公告)日：2007-02-28

    申请号：EP06025000.8

    申请日：2002-02-05

    申请人： Ricoh Company, Ltd.

    发明人： Ito, Kazunori ,  Yuzurihara, Hajime ,  Onagi, Nobuaki ,  Yamada, Katsuyuki ,  Narumi, Shinya

    IPC分类号： G11B7/24 ,  G11B7/007

    CPC分类号： G11B7/2403 ,  G11B7/24035 ,  G11B7/24067 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/243 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/257 ,  G11B7/258 ,  G11B7/259 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21 ,  Y10T428/215

    摘要： A phase-change optical information recording medium in which information can be recorded, reproduced and rewritten and which includes a first transparent substrate (1) having a wobbling guide groove which is spirally formed thereon at a pitch; a first dielectric layer (2) located overlying the first transparent substrate (1) and having an optical thickness of from 80 nm to 200 nm; a phase-change recording layer (3) located overlying the first dielectric layer (2) and having an optical thickness of from 20 to 50 nm when the recording layer (3) is in an erased state; a second dielectric layer (4) located overlying the recording layer (3) and having an optical thickness of from 10 nm to 70 nm; a reflection layer (5) located overlying the second dielectric layer (4); optionally a third dielectric layer (4') located between the second dielectric layer (4) and the reflection layer (5); and a second transparent substrate (1') located overlying the reflection layer (5).

    摘要翻译： 一种相变光信息记录介质，其中可以记录，再现和重写信息，并且包括具有以间距螺旋地形成的摆动引导槽的第一透明基板（1） 位于第一透明基板（1）上方并具有80nm至200nm光学厚度的第一介电层（2）; 当记录层（3）处于擦除状态时位于第一介电层（2）上方并具有20至50nm的光学厚度的相变记录层（3） 位于所述记录层（3）上方并且具有10nm至70nm的光学厚度的第二介电层（4）; 位于第二介电层（4）上方的反射层（5）; 可选地位于第二介电层（4）和反射层（5）之间的第三介电层（4'）; 和位于反射层（5）上方的第二透明基板（1'）。

    OPTICAL RECORDING MEDIUM
    50.
    发明公开
    OPTICAL RECORDING MEDIUM 审中-公开
    光学记录介质

    公开(公告)号：EP1696430A1

    公开(公告)日：2006-08-30

    申请号：EP04819814.7

    申请日：2004-11-30

    申请人： Ricoh Company, Ltd.

    发明人： Yamada, Katsuyuki ,  Narumi, Shinya ,  Kato, Masaki ,  Nakamura, Yuki

    IPC分类号： G11B7/24

    CPC分类号： G11B7/259 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/254 ,  G11B7/256 ,  G11B7/2578 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716

    摘要： An object of the present invention is to provide an optical recording medium which exhibits high storage reliability in high-temperature/high-humidity conditions, stable performance at high temperatures, appropriate mechanical properties and high productivity and is capable of reproducing and recording at high speeds. It is an optical recording medium containing a lower protective layer, an optical recording layer, an upper protective layer and an optical reflective layer which contains 98% by weight or more of Ag that are formed on the substrate, the thickness of the optical recording layer is 8nm to 14nm and the thickness of the upper protective layer is 4nm to 24nm, the upper protective layer contains at least one of zinc oxide, indium oxide, tin oxide, niobium oxide, silicon nitride, aluminum nitride and SiOx (1.6 ≤ x ≤ 1.9) and less than 0.1% by weight of at least any one of sulfur and chlorine, and the upper protective layer is amorphous after recording or rewriting.

    摘要翻译： 本发明的一个目的是提供一种光记录介质，其在高温/高湿度条件下表现出高存储可靠性，在高温下具有稳定的性能，适当的机械性能和高生产率，并且能够高速再现和记录 。 它是包含下保护层，光记录层，上保护层和光反射层的光学记录介质，其包含形成在基底上的98重量％或更多的Ag，光记录层的厚度 所述上保护层的厚度为4nm至24nm，所述上保护层包含氧化锌，氧化铟，氧化锡，氧化铌，氮化硅，氮化铝和SiO x中的至少一种（1.6≤x≤8） 1.9）且硫和氯中的至少任何一种的含量小于0.1重量％，并且在记录或改写之后，上保护层为无定形的。