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    MULTI-LAYER OPTICAL DISC, INFORMATION RECORDING METHOD AND INFORMATION REPRODUCING METHOD
    71.
    发明申请
    MULTI-LAYER OPTICAL DISC, INFORMATION RECORDING METHOD AND INFORMATION REPRODUCING METHOD 有权
    多层光盘，信息记录方法和信息再现方法

    公开(公告)号：US20110085434A1

    公开(公告)日：2011-04-14

    申请号：US12973196

    申请日：2010-12-20

    申请人： Kazuyo UMEZAWA ,  Seiji Morita ,  Koji Takazawa ,  Hideo Ando ,  Yasuaki Ootera ,  Naomasa Nakamura ,  Naoki Morishita

    发明人： Kazuyo UMEZAWA ,  Seiji Morita ,  Koji Takazawa ,  Hideo Ando ,  Yasuaki Ootera ,  Naomasa Nakamura ,  Naoki Morishita

    IPC分类号： G11B7/00 ,  G11B7/24

    CPC分类号： G11B7/00736 ,  G11B7/126 ,  G11B2007/0013

    摘要： According to one embodiment, single-sided dual-layer recordable disc 100 may be used. Information recording is performed by forming mark and space portions on data area DA using modulated laser power. Pp denotes the maximum laser power or peak power for forming the mark portion, and Pb denotes the bias power for forming the space portion. Power ratio Pb/Pp is calculated for each of recording layers L0 and L1. Information is recorded on any of the recording layers L0 and L1 based on the result of calculation. Here, the calculated power ratio Pb/Pp changes among the recording layers L0 and L1, thereby optimizing the recording condition for a multi-layer recordable optical disc within relatively short time.

    摘要翻译： 根据一个实施例，可以使用单面双层可记录盘100。 通过使用调制的激光功率在数据区DA上形成标记和空间部分来执行信息记录。 Pp表示用于形成标记部分的最大激光功率或峰值功率，Pb表示用于形成空间部分的偏压功率。 计算每个记录层L0和L1的功率比Pb / Pp。 基于计算结果，信息记录在任何记录层L0和L1上。 这里，计算出的功率比Pb / Pp在记录层L0和L1之间变化，从而在较短时间内优化了多层可记录光盘的记录条件。

    Write-once information recording medium and disk apparatus
    72.
    发明授权
    Write-once information recording medium and disk apparatus 有权
    一次写入信息记录介质和磁盘设备

    公开(公告)号：US07885173B2

    公开(公告)日：2011-02-08

    申请号：US12362413

    申请日：2009-01-29

    申请人： Seiji Morita ,  Koji Takazawa ,  Kazuyo Umezawa ,  Naoki Morishita ,  Naomasa Nakamura

    发明人： Seiji Morita ,  Koji Takazawa ,  Kazuyo Umezawa ,  Naoki Morishita ,  Naomasa Nakamura

    IPC分类号： G11B7/24

    CPC分类号： G11B7/245 ,  G11B7/2492 ,  G11B7/259

    摘要： According to one embodiment, a write-once information recording medium includes a transparent resin substrate having concentric or spiral grooves and lands, and a recording film formed on the grooves and lands of the transparent resin substrate, wherein the recording film includes an organic dye layer containing a metal complex monomer and a metal complex polymer, a recording mark is formed in the organic dye layer by emission of a short-wavelength laser beam, and a light reflectance of the recording mark formed by emission of the short-wavelength laser beam is higher than that before emission of the short-wavelength laser beam, and the grooves wobble within a predetermined amplitude range.

    摘要翻译： 根据一个实施例，一次写入信息记录介质包括具有同心或螺旋形凹槽和平台的透明树脂基板和形成在透明树脂基板的凹槽和平台上的记录膜，其中记录膜包括有机染料层 含有金属络合物单体和金属络合物聚合物时，通过发射短波长激光而在有机染料层中形成记录标记，并且通过短波长激光束的发射形成的记录标记的光反射率为 高于短波长激光束发射之前，并且凹槽摆动在预定的振幅范围内。

    INFORMATION RECORDING MEDIUM AND DISK APPARATUS USING THE MEDIUM
    73.
    发明申请
    INFORMATION RECORDING MEDIUM AND DISK APPARATUS USING THE MEDIUM 有权
    使用介质的信息记录介质和磁盘设备

    公开(公告)号：US20100246366A1

    公开(公告)日：2010-09-30

    申请号：US12795385

    申请日：2010-06-07

    申请人： Kazuyo UMEZAWA ,  Seiji Morita ,  Koji Takazawa ,  Naomasa Nakamura ,  Naoki Morishita ,  Shinichi Katsuda

    发明人： Kazuyo UMEZAWA ,  Seiji Morita ,  Koji Takazawa ,  Naomasa Nakamura ,  Naoki Morishita ,  Shinichi Katsuda

    IPC分类号： G11B7/00

    CPC分类号： G11B7/24038 ,  G11B7/2467 ,  G11B7/2492 ,  G11B7/2495

    摘要： According to one embodiment, an information recording medium has a plurality of recording layers, and records and reproduces information by using a semiconductor layer of 450 nm or less. When reproducing information, letting x be the frequency of repetitive recording of a shortest mark length and shortest space length of the information, the ratio of the value of a highest level to the value of a level at x/190 of a sum signal detected within the frequency range of x/3240 to x/190 is lower than 32 dB, or the ratio of the average value of the amplitudes of signals of repetitive recording of the shortest mark length and shortest space length to the value of the highest level within the frequency range of x/3240 to x/190 is higher than 10 dB.

    摘要翻译： 根据一个实施例，信息记录介质具有多个记录层，并且通过使用450nm或更小的半导体层来记录和再现信息。 当再现信息时，将x作为信息的最短标记长度和最短空格长度的重复记录的频率，在最高级别的值与在x / 190处检测到的和信号的电平值的比值 x / 3240至x / 190的频率范围低于32dB，或者最短标记长度和最短空间长度的重复记录信号的幅度的平均值与该最小标记长度和最短空格长度之间的最高级别的值的平均值的比值 x / 3240〜x / 190的频率范围高于10dB。

    Optical disc, optical disc manufacturing method, and optical disc apparatus
    74.
    发明授权
    Optical disc, optical disc manufacturing method, and optical disc apparatus 有权
    光盘，光盘制造方法以及光盘装置

    公开(公告)号：US07570566B2

    公开(公告)日：2009-08-04

    申请号：US11504580

    申请日：2006-08-16

    申请人： Toshihiro Sugaya ,  Masato Otsuka ,  Naomasa Nakamura ,  Nobuhisa Yoshida ,  Hisashi Yamada

    发明人： Toshihiro Sugaya ,  Masato Otsuka ,  Naomasa Nakamura ,  Nobuhisa Yoshida ,  Hisashi Yamada

    IPC分类号： G11B3/74

    CPC分类号： G11B7/26 ,  G11B7/00736 ,  G11B7/24038 ,  G11B19/127 ,  G11B19/128 ,  G11B19/16 ,  G11B2007/0013

    摘要： According to one embodiment, an optical disc is the following the distance between a light incidence plane and the first recording layer is a minimum of 550 μm. The distance between the first and the third recording layer is a maximum of 72 μm. The distance between the second and the third recording layer is a minimum of 15 μm. The distance between the first and the second recording layer is about 31 to 40 μm. The reflectivities of the first and the second recording layer with respect to the first laser beam range from 18 to 27%, and the ratio therebetween is about 1.1 or less. The reflectivity of the third recording layer is below about 6%. The areal recording density of the third recording layer is three times or more as high as that of the first recording layer and the second recording layer.

    摘要翻译： 根据一个实施例，光盘之后，光入射平面与第一记录层之间的距离最小为550μm。 第一和第三记录层之间的距离最大为72μm。 第二和第三记录层之间的距离最小为15μm。 第一和第二记录层之间的距离约为31至40μm。 第一记录层和第二记录层相对于第一激光束的反射率为18〜27％，其比例为约1.1以下。 第三记录层的反射率低于约6％。 第三记录层的面积记录密度是第一记录层和第二记录层的面积记录密度的三倍以上。

    WRITE ONCE INFORMATION RECORDING MEDIUM AND DISK APPARATUS
    76.
    发明申请
    WRITE ONCE INFORMATION RECORDING MEDIUM AND DISK APPARATUS 审中-公开
    写入信息记录介质和磁盘设备

    公开(公告)号：US20080002562A1

    公开(公告)日：2008-01-03

    申请号：US11768570

    申请日：2007-06-26

    申请人： Seiji Morita ,  Koji Takazawa ,  Kazuyo Umezawa ,  Naoki Morishita ,  Naomasa Nakamura

    发明人： Seiji Morita ,  Koji Takazawa ,  Kazuyo Umezawa ,  Naoki Morishita ,  Naomasa Nakamura

    IPC分类号： G11B7/24

    CPC分类号： G11B7/263 ,  G11B7/0053 ,  G11B7/24038 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/246 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/2495 ,  G11B7/259 ,  G11B7/266

    摘要： According to one embodiment, in a multilayered write once information recording medium, the light reflectance of a recording mark formed in a first recording film by irradiation with a short-wavelength laser beam is higher than a light reflectance before irradiation with the short-wavelength laser beam, the light reflectance of a recording mark formed in a second recording film by irradiation with the short-wavelength laser beam is higher or lower than a light reflectance before irradiation with the short-wavelength laser beam, and the light reflectance of a recording mark formed in a third recording film, which is arbitrarily formed, by irradiation with the short-wavelength laser beam is higher or lower than a light reflectance before irradiation with the short-wavelength laser beam.

    摘要翻译： 根据一个实施例，在多层一次写入信息记录介质中，通过短波长激光束照射形成在第一记录膜中的记录标记的光反射率高于用短波长激光照射之前的光反射率 通过用短波长激光束照射形成在第二记录膜中的记录标记的光反射率高于或低于用短波长激光束照射之前的光反射率，以及记录标记的光反射率 通过短波长激光束的照射而任意形成的第三记录膜形成在与短波长激光束照射之前的光反射率以上。

    Write-once information recording medium
    79.
    发明申请
    Write-once information recording medium 审中-公开
    一次写入信息记录介质

    公开(公告)号：US20050219995A1

    公开(公告)日：2005-10-06

    申请号：US11088761

    申请日：2005-03-25

    申请人： Seiji Morita ,  Koji Takazawa ,  Naoki Morishita ,  Naomasa Nakamura

    发明人： Seiji Morita ,  Koji Takazawa ,  Naoki Morishita ,  Naomasa Nakamura

    IPC分类号： B41M5/26 ,  G11B7/007 ,  G11B7/244 ,  G11B7/246 ,  G11B7/249 ,  G11B7/24

    CPC分类号： G11B7/24079 ,  G11B7/246 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2495 ,  G11B7/2534 ,  G11B7/259

    摘要： A write-once optical disk comprises a transparent resin substrate having a concentrically or spirally shaped groove and a land formed thereon, and a recording film formed on the groove and the land of the transparent resin substrate, a recording mark being formed by emission of a short-wavelength laser light beam. In addition, a light reflectivity of the recording mark portion formed by emission of the short wave laser light beam is higher than a light reflectivity obtained before emission of the short wavelength laser light beam, and a depth of the groove is in the range of 50 to 80 nm.

    摘要翻译： 一次写入光盘包括具有同心圆形或螺旋形形状的凹槽和形成在其上的平台的透明树脂基板，以及形成在透明树脂基板的凹槽和凸台上的记录膜，记录标记通过发射 短波长激光束。 此外，通过发射短波激光形成的记录标记部分的光反射率高于短波长激光束发射之前获得的光反射率，并且凹槽的深度在50°的范围内 至80nm。