公开(公告)号：US20110199878A1

公开(公告)日：2011-08-18

申请号：US13093425

申请日：2011-04-25

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

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

IPC分类号： G11B7/007 ,  G11B7/00

CPC分类号： G11B7/258 ,  G11B7/00452 ,  G11B7/00455 ,  G11B7/24038 ,  G11B7/246 ,  G11B7/259 ,  G11B2007/0013

摘要： According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, an optical recording medium comprises a first recording part which includes a first recording layer and a first light reflecting layer and which is disposed on a side closer to a light receiving surface, and a second recording part which includes a second recording layer and a second light reflecting layer and which is disposed on a side farther from the light receiving surface, the first recording part and the second recording part being stacked, wherein the thickness of the second light reflecting layer is larger than the thickness of the first light reflecting layer.

公开(公告)号：US20110199870A1

公开(公告)日：2011-08-18

申请号：US13093256

申请日：2011-04-25

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

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

IPC分类号： G11B7/007 ,  G11B7/085

CPC分类号： G11B7/258 ,  G11B7/00452 ,  G11B7/00455 ,  G11B7/24038 ,  G11B7/246 ,  G11B7/259 ,  G11B2007/0013

摘要： According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, an optical recording medium comprises a first recording part which includes a first recording layer and a first light reflecting layer and which is disposed on a side closer to a light receiving surface, and a second recording part which includes a second recording layer and a second light reflecting layer and which is disposed on a side farther from the light receiving surface, the first recording part and the second recording part being stacked, wherein the thickness of the second light reflecting layer is larger than the thickness of the first light reflecting layer.

公开(公告)号：US20110194383A1

公开(公告)日：2011-08-11

申请号：US13091396

申请日：2011-04-21

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

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

IPC分类号： G11B7/007 ,  G11B7/085

CPC分类号： G11B7/258 ,  G11B7/00452 ,  G11B7/00455 ,  G11B7/24038 ,  G11B7/246 ,  G11B7/259 ,  G11B2007/0013

摘要： According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, an optical recording medium comprises a first recording part which includes a first recording layer and a first light reflecting layer and which is disposed on a side closer to a light receiving surface, and a second recording part which includes a second recording layer and a second light reflecting layer and which is disposed on a side farther from the light receiving surface, the first recording part and the second recording part being stacked, wherein the thickness of the second light reflecting layer is larger than the thickness of the first light reflecting layer.

公开(公告)号：US20100329099A1

公开(公告)日：2010-12-30

申请号：US12872616

申请日：2010-08-31

申请人： SEIJI MORITA ,  Koji Takazawa ,  Kazuyo Umezawa ,  Hideo Ando ,  Yasuaki Ootera ,  Naoki Morishita ,  Naomasa Nakamura

发明人： SEIJI MORITA ,  Koji Takazawa ,  Kazuyo Umezawa ,  Hideo Ando ,  Yasuaki Ootera ,  Naoki Morishita ,  Naomasa Nakamura

IPC分类号： G11B7/00

CPC分类号： G11B7/2403 ,  G11B7/24079 ,  G11B7/246 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/2492 ,  G11B7/2495 ,  G11B7/2534 ,  G11B7/2585 ,  G11B7/259 ,  G11B2007/24612 ,  Y10S430/146

摘要： According to an embodiment, a storage medium includes a transparent resin substrate having a concentric or spiral groove and a recording film formed on the groove on the transparent resin substrate, a recording mark being formed by irradiation of a laser beam, wherein a reproduction durability count in a case where reproduction is continuously carried out by a laser beam is 1,000,000 or more.

摘要翻译： 根据实施例，存储介质包括具有同心或螺旋形沟槽的透明树脂基板和形成在透明树脂基板上的槽上的记录膜，通过激光束的照射形成记录标记，其中再现耐久性计数 在通过激光束连续进行再现的情况下，为1,000,000以上。

公开(公告)号：US07858166B2

公开(公告)日：2010-12-28

申请号：US11669406

申请日：2007-01-31

申请人： Tsukasa Nakai ,  Noritake Oomachi ,  Sumio Ashida ,  Naomasa Nakamura ,  Keiichiro Yusu ,  Yasuhiro Satoh

发明人： Tsukasa Nakai ,  Noritake Oomachi ,  Sumio Ashida ,  Naomasa Nakamura ,  Keiichiro Yusu ,  Yasuhiro Satoh

IPC分类号： B32B3/02

CPC分类号： G11B7/24038 ,  G11B7/2578 ,  G11B7/266 ,  G11B2007/0013 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  Y10T428/21

摘要： According to one embodiment, in a phase change optical disk which has a substrate and a multi-layered including an interference film, phase change recording film, interface film, and reflecting film, and in which information is reversibly recorded in or erased from the recording film by using light, an element (e.g., Ge or Te) forming the phase change recording film has segregation or a concentration distribution in the thickness direction of the recording film from a portion in contact with the phase change recording film.

摘要翻译： 根据一个实施例，在具有基板和包括干涉膜，相变记录膜，界面膜和反射膜的多层的相变光盘中，其中信息被可逆地记录在记录或从记录中被擦除 通过使用光，形成相变记录膜的元件（例如，Ge或Te）从与相变记录膜接触的部分在记录膜的厚度方向上具有偏析或浓度分布。

公开(公告)号：US07477592B2

公开(公告)日：2009-01-13

申请号：US11293371

申请日：2005-12-05

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/24038 ,  G11B2007/0006

摘要： An optical disc of this invention is configured to be capable of dealing with both information in HD DVD and information in DVD. The optical disc is basically specified by the following items (1) to (7): (1) the optical disc is a single-sided dual layer optical disc where a light transmission layer, a first recording layer accessed with a first laser beam, an space layer, and a second recording layer accessed with a second laser beam are arranged in that order in the direction in which the laser beam enters, (2) the areal recoding density of the second recording layer is three times or more as high as that of the first recording layer, (3) identifying information which indicates that the first recording layer has been formed is formed in the second recording layer, (4) the distance in the light transmission layer from the incidence plane to the first recording layer is 550 μm or more, (5) the distance in the light transmission layer from the incidence plane to the second recording layer is 622 μm or less, (6) the reflectivity of the first recording layer with respect to the first laser beam is 45% to 65%, and (7) the reflectivity of the second recording layer with respect to the second laser beam is 15% to 29%.

摘要翻译： 本发明的光盘被配置为能够处理HD DVD中的信息和DVD中的信息。 光盘基本上由以下（1）至（7）指定：（1）光盘是单面双层光盘，其中光传输层，第一激光束访问的第一记录层， 以第二激光束存取的空间层和第二记录层按照激光入射方向的顺序排列，（2）第二记录层的面记录密度是三倍以上 在第二记录层中形成第一记录层，（3）表示第一记录层的识别信息，（4）光透射层从入射面到第一记录层的距离为 550μm以上，（5）透光层从入射面到第二记录层的距离为622μm以下，（6）第一记录层相对于第一激光束的反射率为45％ 至65％ （7）第二记录层相对于第二激光束的反射率为15％〜29％。

公开(公告)号：US20080310280A1

公开(公告)日：2008-12-18

申请号：US12140549

申请日：2008-06-17

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。

公开(公告)号：US20080151727A1

公开(公告)日：2008-06-26

申请号：US11958137

申请日：2007-12-17

申请人： Naomasa Nakamura ,  Nobuhisa Yoshida ,  Yasuaki Ootera

发明人： Naomasa Nakamura ,  Nobuhisa Yoshida ,  Yasuaki Ootera

IPC分类号： G11B7/20 ,  G11B7/26

CPC分类号： G11B7/26 ,  B32B3/00 ,  G11B7/24038 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/259

摘要： According to one embodiment, in a single-sided, triple-layered optical disk, at least a first reflecting layer on the light incident side is made of silicon or a silicon compound, and has a recording density lower than those of second and third reflecting layers.

摘要翻译： 根据一个实施例，在单面三层光盘中，光入射侧的至少第一反射层由硅或硅化合物制成，并且具有低于第二和第三反射的记录密度 层。

公开(公告)号：US20080056114A1

公开(公告)日：2008-03-06

申请号：US11848150

申请日：2007-08-30

申请人： Yasuaki Ootera ,  Nobuhisa Yoshida ,  Naomasa Nakamura

发明人： Yasuaki Ootera ,  Nobuhisa Yoshida ,  Naomasa Nakamura

IPC分类号： G11B3/70 ,  B32B3/02

CPC分类号： G11B7/266 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/249 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/259 ,  G11B7/263

摘要： According to one embodiment, disclosed is an optical disc in which information is recorded by a pit pattern and which includes a reflection membrane. When concavities and convexities of the pits are opposite to those of a usual case, the reflection membrane is formed on the pits in the form of a two-layer membrane of silver or a silver alloy and aluminum or an aluminum alloy. The reflection membrane is formed with a two-layer structure including a first layer and a second layer different from the first layer. The material of the first layer is aluminum, an aluminum alloy or aluminum oxide. The second layer contacts the first layer and its material is silver or a silver alloy.

摘要翻译： 根据一个实施例，公开了一种光盘，其中信息通过凹坑图案记录并且包括反射膜。 当凹坑的凹凸与通常的情况相反时，反射膜以银或银合金和铝或铝合金的双层膜的形式形成在凹坑上。 反射膜由具有不同于第一层的第一层和第二层的双层结构形成。 第一层的材料是铝，铝合金或氧化铝。 第二层接触第一层，其材料是银或银合金。

公开(公告)号：US20070286980A1

公开(公告)日：2007-12-13

申请号：US11810586

申请日：2007-06-06

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

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

IPC分类号： B32B3/02

CPC分类号： B32B3/02 ,  G11B7/00451 ,  G11B7/00455 ,  G11B7/00736

摘要： Manufacturing of a higher quality write-once type multilayer optical disc is facilitated. The optical disc includes a plurality of recording layers in which recording or reproduction is carried out by a blue or blue-violet laser beam of a wavelength of about 405 nm. Each of the recording layers includes a recording layer which uses an organic dye. The plurality of recording layers includes a layer in which a groove pattern around a recording mark is deformed when information is recorded, and a layer in which the groove pattern around the recording mark is not deformed when information is recorded.

摘要翻译： 制造更高质量的一次写入型多层光盘便利。 光盘包括多个记录层，其中通过约405nm的波长的蓝色或蓝紫色激光束进行记录或再现。 每个记录层包括使用有机染料的记录层。 多个记录层包括当记录信息时围绕记录标记的凹槽图案变形的层，以及当记录信息时在记录标记周围的凹槽图案不变形的层。