公开(公告)号：US07697407B2

公开(公告)日：2010-04-13

申请号：US11604492

申请日：2006-11-27

申请人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh ,  Daisuke Yoshitoku

发明人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh ,  Daisuke Yoshitoku

IPC分类号： G11B7/24

CPC分类号： G11B7/24038 ,  G11B7/24085

摘要： A multilayer optical recording medium enabled to retain an ideal signal regenerating property in spite of accidental adhesion of finger mark or alien substance is provided. The multilayer optical recording medium 1 is provided with a plurality of information-recording layers 20, 22, 24, and 26 capable of reading information with a reading light irradiated through a light incidence surface 38A on one side and is so adapted that the light incidence side information-recording layer 26 approximating most closely to the light incidence surface 38A may be set at a small recording capacity as compared with the recording capacities of at least one of the other information-recording layers.

摘要翻译： 提供了能够保持理想信号再生特性的多层光学记录介质，尽管手指标记或异物的意外附着。 多层光学记录介质1设置有能够通过一侧的光入射面38A照射的读取光读取信息的多个信息记录层20,22,24和26，并且适于使光入射 与其他信息记录层中的至少一个记录层的记录容量相比，可以将与光入射面38A近似近似的侧面信息记录层26设定为较小的记录容量。

公开(公告)号：US20070121480A1

公开(公告)日：2007-05-31

申请号：US11604492

申请日：2006-11-27

申请人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh ,  Daisuke Yoshitoku

发明人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh ,  Daisuke Yoshitoku

IPC分类号： G11B3/70

CPC分类号： G11B7/24038 ,  G11B7/24085

摘要： A multilayer optical recording medium enabled to retain an ideal signal regenerating property in spite of accidental adhesion of finger mark or alien substance is provided. The multilayer optical recording medium 1 is provided with a plurality of information-recording layers 20, 22, 24, and 26 capable of reading information with a reading light irradiated through a light incidence surface 38A on one side and is so adapted that the light incidence side information-recording layer 26 approximating most closely to the light incidence surface 38A may be set at a small recording capacity as compared with the recording capacities of at least one of the other information-recording layers.

摘要翻译： 提供了能够保持理想信号再生特性的多层光学记录介质，尽管手指标记或异物的意外附着。 多层光学记录介质1设置有多个信息记录层20,22,24和26，其能够通过一侧的光入射面38A照射的读取光来读取信息，并且适于使光 与其他信息记录层中的至少一个的记录容量相比，能够将与光入射面38A近似近似的入射侧信息记录层26设定为较小的记录容量。

公开(公告)号：US07787334B2

公开(公告)日：2010-08-31

申请号：US11998549

申请日：2007-11-30

申请人： Takashi Kikukawa ,  Koji Mishima ,  Tsutomu Aoyama ,  Hidetake Itoh

发明人： Takashi Kikukawa ,  Koji Mishima ,  Tsutomu Aoyama ,  Hidetake Itoh

IPC分类号： G11B7/00

CPC分类号： G11B7/007 ,  G11B7/0045 ,  G11B7/24038 ,  G11B7/24085 ,  G11B20/1883 ,  G11B2007/0013 ,  G11B2220/20 ,  G11B2220/215 ,  G11B2220/235 ,  G11B2220/2537

摘要： When there is a defect area in a specific recording layer, recording of information is continued and reduction in a recording rate is restrained. In an optical recording method for recording information on a multilayer optical recording medium having a plurality of recording layers by irradiating the recording layer with a beam spot, any recording layer is set as an escape recording layer. When a defect area is detected while information is recorded on another recording layer except for the escape recording layer, the beam spot moves to the escape recording layer to continue recording the information.

摘要翻译： 当在特定记录层中存在缺陷区域时，继续记录信息并抑制记录速率的降低。 在通过用光斑照射记录层而在具有多个记录层的多层光学记录介质上记录信息的光学记录方法中，将任何记录层设置为逃逸记录层。 当在除了逃逸记录层之外的另一记录层上记录信息时检测到缺陷区域时，光束点移动到逃逸记录层以继续记录信息。

公开(公告)号：US20080049595A1

公开(公告)日：2008-02-28

申请号：US11892088

申请日：2007-08-20

申请人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh

发明人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh

IPC分类号： G11B7/26 ,  G11B3/70

CPC分类号： G11B7/24038 ,  Y10T428/21

摘要： An optical recording medium has a five-layer structure including five recording layers, namely an L0 layer, an L1 layer, an L2 layer, an L3 layer, and an L4 layer in this order from a side farthest away from a laser light incident surface. The materials of the respective recording layers are selected so that the rate of change in transmittance Tb/Ta as taken from the laser light incident surface satisfies 0.93

摘要翻译： 光记录介质具有五层结构，其包括五层记录层，即L层，L层，L层， 层，L 3层和L 4层，从离激光入射面最远的一侧开始。 选择各记录层的材料，使得当在L 0 0层记录时，从激光入射表面获得的透射率Tb / Ta的变化率满足0.93

公开(公告)号：US20080049579A1

公开(公告)日：2008-02-28

申请号：US11826466

申请日：2007-07-16

申请人： Takashi Kikukawa ,  Koji Mishima ,  Hidetake Itoh

发明人： Takashi Kikukawa ,  Koji Mishima ,  Hidetake Itoh

IPC分类号： G11B7/20 ,  G11B3/74

CPC分类号： G11B7/2437 ,  G11B7/24038 ,  G11B7/2433 ,  G11B7/259 ,  G11B2007/24308 ,  G11B2007/24312 ,  G11B2007/24314

摘要： A multilayer recording medium has a three-layered structure for an increased capacity, including an L0 layer, an L1 layer, and an L2 layer in order from the side farthest away from the incident surface of laser light. The recording layers are made of respective recording film materials selected so that the recording films of the recording layers have respective recording-reaction temperatures T0, T1, and T2, where T0≦T1≦T2 and T0

摘要翻译： 多层记录介质具有用于增加容量的三层结构，包括L 0层，L 1层和L 2 N层 >层从距激光入射面最远的一侧依次排列。 记录层由选择的各个记录膜材料制成，使得记录层的记录膜具有各自的记录 - 反应温度T 0，T 1和T _{2 ，其中T <0 <= T 1 <= T 2＆lt; T＆lt; 0＆lt; T 2 。 这使得各个记录层的记录灵敏度基本上相同，并且延长了各个记录层的激光的最佳记录功率基本上相同，使得记录在L上的信息所需的激光的记录功率 特别是防止层<！ - SIPO - >过高。}

公开(公告)号：US07817526B2

公开(公告)日：2010-10-19

申请号：US11892088

申请日：2007-08-20

申请人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh

发明人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh

IPC分类号： G11B7/24 ,  B32B3/02

CPC分类号： G11B7/24038 ,  Y10T428/21

摘要： An optical recording medium has a five-layer structure including five recording layers, namely an L0 layer, an L1 layer, an L2 layer, an L3 layer, and an L4 layer in this order from a side farthest away from a laser light incident surface. The materials of the respective recording layers are selected so that the rate of change in transmittance Tb/Ta as taken from the laser light incident surface satisfies 0.93

摘要翻译： 光记录介质具有从距离激光入射面最远的一侧依次包括五个记录层的五层结构，即L0层，L1层，L2层，L3层和L4层 。 选择各个记录层的材料，使得当在记录层中记录在L0层上时，从激光入射表面获得的透射率Tb / Ta的变化率满足0.93

公开(公告)号：US20080170484A1

公开(公告)日：2008-07-17

申请号：US12003916

申请日：2008-01-03

申请人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh

发明人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh

IPC分类号： G11B7/00

CPC分类号： G11B7/24079 ,  G11B7/24035 ,  G11B7/24067 ,  G11B7/259 ,  G11B2007/24304 ,  G11B2007/24306 ,  G11B2007/24314 ,  G11B2007/2432 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/25715

摘要： A reliable optical recording medium is provided which includes an information layer exhibiting small changes in the optical properties even during long-term storage. The optical recording medium includes the information layer including a recording film having an extinction coefficient of 0.4 or less at the wavelength of a laser beam used for recording and reproducing. The information layer further includes a light absorbing film having an extinction coefficient of 1.5 or less at the wavelength of the laser beam, and the extinction coefficient of the light absorbing film is greater than that of the recording film.

摘要翻译： 提供了一种可靠的光学记录介质，其包括即使在长期存储期间也表现出光学特性的小变化的信息层。 光记录介质包括信息层，其包括在用于记录和再现的激光束的波长处具有0.4或更小的消光系数的记录膜。 信息层还包括在激光束的波长处具有1.5或更小的消光系数的光吸收膜，并且光吸收膜的消光系数大于记录膜的消光系数。

公开(公告)号：US07940634B2

公开(公告)日：2011-05-10

申请号：US11898427

申请日：2007-09-12

申请人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh

发明人： Koji Mishima ,  Takashi Kikukawa ,  Hidetake Itoh

IPC分类号： G11B7/00

CPC分类号： G11B7/24038 ,  G11B7/259 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/25706 ,  G11B2007/25715

摘要： In a multilayer optical recording medium having three or more recording layers, when data is recorded on a recording layer far away from an incident surface of laser light, and especially on a recording layer farthest away from the incident surface of the laser light, by applying the laser light, the recording power margin of the farthest recording layer allows for a variation in the optimal recording sensitivity even if the transmittance of the recording layers located between the laser light incident surface side and the target recording layer is varied due to existing recordings and the amount of the laser light passing therethrough is also varied. In this case, the recording layer which is the farthest from an incident surface of laser light has a phase change recording film, and the recording layer which is the nearest from the incident surface of the laser light has a write-once read-multiple recording film.

摘要翻译： 在具有3个以上记录层的多层光记录介质中，当数据记录在远离激光入射面的记录层上，特别是在离激光入射面最远的记录层上时， 即使激光入射面侧和目标记录层之间的记录层的透射率由于现有记录而变化，最远记录层的记录功率余量也允许最佳记录灵敏度的变化， 通过其的激光的量也变化。 在这种情况下，距离激光入射面最远的记录层具有相变记录膜，并且与激光的入射面最接近的记录层具有一次写入多次记录 电影。

公开(公告)号：US20080170485A1

公开(公告)日：2008-07-17

申请号：US12003913

申请日：2008-01-03

申请人： Koji Mishima ,  Hidetake Itoh ,  Takashi Kikukawa

发明人： Koji Mishima ,  Hidetake Itoh ,  Takashi Kikukawa

IPC分类号： G11B7/00

CPC分类号： G11B7/24038 ,  G11B7/2433 ,  G11B7/2437 ,  G11B2007/24314 ,  G11B2007/2432

摘要： The optical recording medium includes a first information layer including a first recording film having an extinction coefficient of 0.4 or less at a wavelength of a laser beam used for recording and reproducing, and a second information layer including a second recording film consisting essentially of the same constituent elements as those of the first recording film and having an extinction coefficient of 0.4 or less. Among the first and second information layers, the first information layer is located further away from a laser beam-incident surface than the second information layer located closest to the incident surface. The first information layer further includes a light absorbing film having an extinction coefficient of 1.5 or more at the wavelength of the laser beam, the extinction coefficient of the light absorbing film being greater than that of the first recording film.

摘要翻译： 光记录介质包括第一信息层，包括在用于记录和再现的激光束的波长处具有0.4或更小的消光系数的第一记录膜，以及包括基本上由其组成的第二记录膜的第二信息层 构成要素为第一记录膜的消光系数为0.4以下。 在第一和第二信息层中，第一信息层位于比最接近入射表面的第二信息层更远离激光束入射表面。 第一信息层还包括在激光束的波长处具有1.5或更大的消光系数的光吸收膜，光吸收膜的消光系数大于第一记录膜的消光系数。

公开(公告)号：US20080151730A1

公开(公告)日：2008-06-26

申请号：US12004866

申请日：2007-12-21

申请人： Takashi Kikukawa ,  Koji Mishima ,  Hidetake Itoh

发明人： Takashi Kikukawa ,  Koji Mishima ,  Hidetake Itoh

IPC分类号： G11B3/74

CPC分类号： G11B7/0945 ,  G11B7/08511 ,  G11B2007/0013

摘要： An optical recording and reading method capable of enhancing the design flexibility of recording layers of an optical recording medium and performing accurate optical recording and reading operations. The optical recording and reading method is one for recording and reading an optical recording medium having three or more recording layers by irradiating the same with laser light using an optical recording and reading apparatus. When an optical recording medium is mounted on the optical recording and reading apparatus, the positions of the recording layers of the optical recording medium are measured using the laser light.

摘要翻译： 一种光学记录和读取方法，其能够增强光记录介质的记录层的设计灵活性并执行精确的光学记录和读取操作。 光学记录和读取方法是通过使用光学记录和读取装置用激光照射具有三个或更多个记录层的光学记录介质的方法。 当光学记录介质安装在光学记录和读取设备上时，使用激光测量光学记录介质的记录层的位置。