公开(公告)号：US07760615B2

公开(公告)日：2010-07-20

申请号：US12155972

申请日：2008-06-12

申请人： Hiroshi Shinngai ,  Hideki Hirata ,  Tatsuya Kato ,  Hiroshi Takasaki ,  Yasuhiro Takagi ,  Masaki Sobu ,  Masanori Kosuda

发明人： Hiroshi Shinngai ,  Hideki Hirata ,  Tatsuya Kato ,  Hiroshi Takasaki ,  Yasuhiro Takagi ,  Masaki Sobu ,  Masanori Kosuda

IPC分类号： G11B7/24

CPC分类号： G11B7/24 ,  G11B7/24038 ,  G11B7/259 ,  G11B2007/24308 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25715

摘要： A rewritable phase-change optical recording medium is provided, which includes a substrate, a first information layer, a spacer layer, a second information layer, and a cover layer. The second information layer includes a recording film containing Sb as a main component and V or V and In as second components. When an amorphous mark formed in the recording film is irradiated with a reproduction beam, crystallization of the amorphous mark occurs only in a central portion in the width direction of the amorphous mark. The width direction is orthogonal to the scanning direction of the laser beam. The recording film is formed of a material that exhibits a change in degree of modulation of 5% or less when recorded information is repeatedly reproduced. The change in degree of modulation is a change from when the number of times of reproduction is 100,000 to when it is 400,000.

摘要翻译： 提供了一种可重写的相变光学记录介质，其包括基板，第一信息层，间隔层，第二信息层和覆盖层。 第二信息层包括含有Sb作为主要成分的记录膜，V或V和In作为第二成分。 当在再现光束照射记录膜中形成的非晶标记时，仅在无定形标记的宽度方向的中心部分发生非晶标记的结晶。 宽度方向与激光束的扫描方向正交。 当记录信息被重复再现时，记录膜由表现出5％以下的调制度变化的材料形成。 调制度的变化是从复制次数为100,000到40万的时间的变化。

公开(公告)号：US20080239934A1

公开(公告)日：2008-10-02

申请号：US12076070

申请日：2008-03-13

申请人： Hiroshi Shingai ,  Tatsuya Kato ,  Masanori Kosuda ,  Hiroshi Takasaki ,  Hideki Hirata ,  Hajime Utsunomiya

发明人： Hiroshi Shingai ,  Tatsuya Kato ,  Masanori Kosuda ,  Hiroshi Takasaki ,  Hideki Hirata ,  Hajime Utsunomiya

IPC分类号： G11B7/24

CPC分类号： G11B7/2433 ,  G11B7/24038 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/25706 ,  G11B2007/25715 ,  Y10T428/21

摘要： An optical recording medium is provided which includes two or more information layers in which an Sb-based eutectic material is used as the material for a recording film of a translucent information layer. There is also provided a recording film material for the optical recording medium. The translucent information layer is configured to include a recording film formed of a phase change material SbxGeyInz containing Sb, Ge, and In in an atomic ratio of x:y:z, where 5≦y≦15 and 4≦z≦15 are satisfied. The recording film further includes Te in an atomic ratio of a, provided that x+y+z+a=100 and 4≦a≦15 are satisfied. An interface layer formed of a ZrO2—Cr2O3 film having a thickness of 2 nm or more and 10 nm or less is provided on the laser beam incident side of the recording film. When the compositional ratio of the ZrO2—Cr2O3 film is given by ZrO2:Cr2O3=B:C (mol %), 20≦B≦90, 10≦C≦80, and B+C=100 are satisfied.

摘要翻译： 提供了一种光记录介质，其包括其中使用Sb基共晶材料作为半透明信息层的记录膜的材料的两个或更多个信息层。 还提供了一种用于光学记录介质的记录膜材料。 半透明信息层被配置为包括由包含Sb，Ge和Sb的相变材料Sb x Sub x Z z形成的记录膜;以及 在x：y：z的原子比中，其中5 <= y <= 15且4 <= z <= 15。 如果满足x + y + z + a = 100和4 <= a <= 15，则记录膜还包括原子比a的Te。 提供由厚度为2nm以上且10nm以下的ZrO 2·2L 2 O 3·3膜形成的界面层 在记录膜的激光束入射侧。 当ZrO 2→2→2→3 <3>膜的组成比由ZrO 2：Cr： B = C（摩尔％），20 <= B <= 90，10 <= C <= 80，B + C = 100。

公开(公告)号：US20080175125A1

公开(公告)日：2008-07-24

申请号：US12010163

申请日：2008-01-22

申请人： Hiroshi Shingai ,  Tatsuya Kato ,  Masanori Kosuda ,  Hiroshi Takasaki ,  Hideki Hirata ,  Hajime Utsunomiya

发明人： Hiroshi Shingai ,  Tatsuya Kato ,  Masanori Kosuda ,  Hiroshi Takasaki ,  Hideki Hirata ,  Hajime Utsunomiya

IPC分类号： G11B3/74

CPC分类号： G11B7/24038 ,  G11B7/2433 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25715 ,  Y10T428/21

摘要： A next-generation optical recording medium has two or more information layers which include a translucent information layer. The translucent information layer has a recording film and an interface layer, provided adjacent to the recording film on the side of the light incident surface. The recording film is made of a phase change material having SbxTeyGez elements and elemental ratios. Y satisfies 5≦y≦15 and z satisfies 5≦z≦15. When In having an elemental ratio of a is further added and x+y+z+a=100 holds, a satisfies 4≦a≦15. The interface layer comprises of ZrO2—Cr2O3 film thickness of which is in a range of from 2 nm to 10 nm. When ZrO2:Cr2O3═C:D (mol %), the compositional ratios ZrO2 and Cr2O3 in the ZrO2—Cr2O3 film, holds, the C satisfies 20≦C≦90, and the D satisfies 10≦D≦80, and the C and the D satisfy C+D=100. The ZrO2 is stabilized ZrO2 which contains Y2O3, when ZrO2:Y2O3=(100-X):X (mol %), the compositional ratios ZrO2 and Y2O3 in the stabilized ZrO2, holds, the X satisfies 2≦X≦10.

摘要翻译： 下一代光记录介质具有包括半透明信息层的两个或多个信息层。 半透明信息层具有记录膜和界面层，与光入射表面侧的记录膜相邻。 该记录膜由具有Sb x Si x Y y z z z元素和元素比的相变材料制成。 Y满足5 <= y <= 15，z满足5 <= z <= 15。 当进一步添加具有a的元素比率的In并且x + y + z + a = 100成立时，满足4 <= a <= 15。 界面层包含ZrO 2→2→2→3→3→3膜，其膜厚在2nm至10nm的范围内。 当ZrO 2：Cr 2 O 3 -C（D）（摩尔％）时，组成比ZrO 2 < 和ZrO 2 -r 2 O 3 O 3膜中的Cr 2 O 3 O 3 满足20 <= C <= 90，D满足10 <= D <= 80，C和D满足C + D = 100。 当ZrO 2 2时，ZrO 2 2是稳定的含有Y 2 O 3 O 3的ZrO 2 （100-X）：X（摩尔％），组成比ZrO 2和Y _{2 3 <3>，X满足2 <= X <= 10。}

公开(公告)号：US07324426B2

公开(公告)日：2008-01-29

申请号：US10923699

申请日：2004-08-24

申请人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima ,  Hideki Hirata ,  Hajime Utsunomiya

发明人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima ,  Hideki Hirata ,  Hajime Utsunomiya

IPC分类号： G11B7/24

CPC分类号： G11B7/243 ,  G11B7/24035 ,  G11B7/24067 ,  G11B2007/24308 ,  G11B2007/24312

摘要： An optical information recording medium which is capable of performing high-density recording of record data, and storing the recorded data for a long time period such that the recorded data can be normally reproduced during the long time period. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Cu as the main component and having Au added thereto, and disposed in the vicinity of the first recording film.

摘要翻译： 一种光信息记录介质，其能够执行高密度记录记录数据，并且将长时间的记录数据存储，使得能够在长时间段内正常再现记录数据。 光学信息记录介质具有形成在基板上的记录层，用于对其进行照射的激光束记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由包含Si作为主要成分的第一材料形成。 第二子记录膜由包含Cu作为主要成分并且添加有Au并且设置在第一记录膜附近的第二材料形成。

公开(公告)号：US07321543B2

公开(公告)日：2008-01-22

申请号：US10923674

申请日：2004-08-24

申请人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima ,  Hideki Hirata ,  Hajime Utsunomiya

发明人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima ,  Hideki Hirata ,  Hajime Utsunomiya

IPC分类号： G11B7/24

CPC分类号： G11B7/24 ,  G11B7/243 ,  G11B2007/24304 ,  G11B2007/24308 ,  G11B2007/24312

摘要： An optical information recording medium which makes it possible to reduce the noise level and improve the C/N ratio. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Zn as the main component and having Cu added thereto, and disposed in the vicinity of the first recording film. The laser beam is irradiated to the recording layer via a light transmitting layer formed in a manner covering the recording layer side.

摘要翻译： 一种光信息记录介质，其可以降低噪声水平并提高C / N比。 光学信息记录介质具有形成在基板上的记录层，用于对其进行照射的激光束记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由包含Si作为主要成分的第一材料形成。 第二副记录膜由含有Zn作为主要成分并且添加有Cu并且设置在第一记录膜附近的第二材料形成。 通过以覆盖记录层侧的方式形成的透光层将激光束照射到记录层。

公开(公告)号：US07283457B2

公开(公告)日：2007-10-16

申请号：US10493420

申请日：2002-10-21

申请人： Kenji Yamaga ,  Hideki Hirata

发明人： Kenji Yamaga ,  Hideki Hirata

IPC分类号： G11B7/24

CPC分类号： G11B7/24079 ,  G11B7/00 ,  G11B7/00375 ,  G11B7/00736

摘要： A conventional mechanical precision measuring device is used effectively in the measurement of the eccentricity of a high density optical disc. A DVR optical disc 2 comprises a pattern 4 of fine depressions and protrusions conformed to the intended format of the disc (a first depressions and protrusions: pits and/or grooves) formed within an information recording area 6 of the disc, as well as a pattern 8 of fine depressions and protrusions for measuring the eccentricity (a second depressions and protrusions), which is formed in an area other than the information recording area 6, and is formed in accordance with a CD format having lower recording density than that of the format defined for the DVR optical disc 2. By using this pattern 8 of fine depressions and protrusions for mechanical detection, conventional mechanical precision measuring devices designed for the CD family can be used as it is, for measuring the eccentricity (mechanical precision) of the DVR optical disc 2.

摘要翻译： 传统的机械精密测量装置有效地用于测量高密度光盘的偏心度。 DVR光盘2包括细分凹凸图案4，其形成在盘的信息记录区域6内形成的盘的预期格式（第一凹部和突起：凹坑和/或凹槽），以及 用于测量在信息记录区域6以外的区域中形成的偏心率（第二凹陷和突起）的细小凹陷和突起的图案8，并且根据具有比记录密度低的记录密度的CD格式形成 为DVR光盘2定义的格式。 通过使用这种用于机械检测的精细凹凸和突起的图案8，可以直接使用为CD系列设计的常规机械精密测量装置，用于测量DVR光盘2的偏心率（机械精度）。

公开(公告)号：US07203150B2

公开(公告)日：2007-04-10

申请号：US10485664

申请日：2002-09-24

申请人： Hiroyasu Inoue ,  Hideki Hirata

发明人： Hiroyasu Inoue ,  Hideki Hirata

IPC分类号： G11B5/09

CPC分类号： G11B7/252 ,  G11B7/0062 ,  G11B7/2403 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716

摘要： An optical recording medium and a recording system for the same are provided, which can dissipate heat produced by a laser beam during recording operations to thereby increase the erasing power margin of the laser beam which allows the playback jitter value to take on a certain value or less.A recording system 1 includes an optical recording medium 10 and an optical recording apparatus 30. The optical recording medium 10 has a reflective film 16, a second dielectric layer 18, a recording layer 20, a heat sink layer 24, and a light-transmitting layer 26, which are formed on a support substrate 12. The heat sink layer 24 is made of a material having a certain range of thermal conductivity, e.g., alumina. The optical recording apparatus 30 allows a laser beam of 450 nm or less in wavelength to be incident from the light-transmitting layer 26 via a lens system having an objective lens with a numerical aperture of 0.7 or more. The optical recording medium 10 dissipates heat produced by the laser beam through the heat sink layer 24 to thereby prevent an increase in temperature of the recording layer 20, such that the relation between the recording power Pw of the laser beam and the erasing power Pe satisfies 0.7≦Pe/Pw≦1.0.

摘要翻译： 提供了一种用于其的光记录介质和记录系统，其可以在记录操作期间散发由激光束产生的热量，从而增加激光束的擦除功率余量，从而允许重放抖动值取一定值，或者 减。

公开(公告)号：US07141289B2

公开(公告)日：2006-11-28

申请号：US10923679

申请日：2004-08-24

申请人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima ,  Hideki Hirata ,  Hajime Utsunomiya

发明人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima ,  Hideki Hirata ,  Hajime Utsunomiya

IPC分类号： B32B3/02

CPC分类号： G11B7/24035 ,  G11B7/24067

摘要： An optical information recording medium which is capable of performing high-density recording of record data, and storing the recorded data for a long time period such that the recorded data can be normally reproduced during the long time period. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Cu as the main component and having Zn added thereto, and disposed in the vicinity of the first recording film.

摘要翻译： 一种光信息记录介质，其能够执行高密度记录记录数据，并且将记录数据长时间地存储，使得可以在长时间段内正常再现所记录的数据。 光学信息记录介质具有形成在基板上的记录层，用于对其进行照射的激光束记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由包含Si作为主要成分的第一材料形成。 第二子记录膜由包含Cu作为主要成分并且添加有Zn并且设置在第一记录膜附近的第二材料形成。

公开(公告)号：US07141288B2

公开(公告)日：2006-11-28

申请号：US10923666

申请日：2004-08-24

申请人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima ,  Hideki Hirata ,  Hajime Utsunomiya

发明人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima ,  Hideki Hirata ,  Hajime Utsunomiya

IPC分类号： B32B3/02

CPC分类号： G11B7/243 ,  G11B2007/24304 ,  G11B2007/24308 ,  G11B2007/24312

摘要： An optical information recording medium which is capable of performing high-density recording of record data, and storing the recorded data for a long time period such that the recorded data can be normally reproduced during the long time period. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Cu as the main component and having Mg added thereto, and disposed in the vicinity of the first recording film.

摘要翻译： 一种光信息记录介质，其能够执行高密度记录记录数据，并且将长时间的记录数据存储，使得能够在长时间段内正常再现记录数据。 光学信息记录介质具有形成在基板上的记录层，用于对其进行照射的激光束记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由包含Si作为主要成分的第一材料形成。 第二子记录膜由包含Cu作为主要成分并且添加有Mg并且设置在第一记录膜附近的第二材料形成。

公开(公告)号：US20050243676A1

公开(公告)日：2005-11-03

申请号：US10516701

申请日：2003-06-02

申请人： Tatsuya Kato ,  Hideki Hirata ,  Hiroyasu Inoue

发明人： Tatsuya Kato ,  Hideki Hirata ,  Hiroyasu Inoue

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B7/24 ,  G11B7/243 ,  G11B3/00

CPC分类号： G11B7/1267 ,  G11B7/00456 ,  G11B7/2403 ,  G11B7/243 ,  G11B7/258

摘要： It is an object of the present invention to provide a method for determining a pattern for modulating the power of a laser beam which can determine a pattern for modulating the power of a laser beam so that data can be recorded in a write-once type optical recording medium with a laser beam having a low recording power at a high linear recording velocity. The method for determining a pattern for modulating the power of a laser beam according to the present invention includes the steps of determining pulse train patterns by fixing a recording power at a predetermined level and varying the level of a bottom power, modulating the power of the laser beam in accordance with the pulse train patterns to record first test signals in the optical recording medium, reproducing the first test signals, determining the optimum level of the bottom power based on the amplitude of the thus reproduced first test signals, determining pulse train patterns by fixing the bottom power at the optimum level and varying the level of the recording power, modulating the power of the laser beam in accordance with the pulse train patterns to record second test signals in the optical recording medium, reproducing the second test signals and determining the optimum level of the recording power based on at least one of jitter and error rates of the thus reproduced second test signals.

摘要翻译： 本发明的目的是提供一种用于确定用于调制激光束的功率的图案的方法，该方法可以确定用于调制激光束的功率的图案，使得数据可以以一次写入型光学 以高线性记录速度具有低记录功率的激光束的记录介质。 根据本发明的确定用于调制激光束的功率的图案的方法包括以下步骤：通过将记录功率固定在预定水平并改变底部功率的电平来调节脉冲串模式的功率 激光束根据脉冲序列图案在光学记录介质中记录第一测试信号，再现第一测试信号，基于这样再现的第一测试信号的幅度确定底部功率的最佳电平，确定脉冲串模式 通过将底部功率固定在最佳水平并改变记录功率的水平，根据脉冲串模式调制激光束的功率，以将第二测试信号记录在光学记录介质中，再现第二测试信号并确定 基于由此再现的抖动和错误率中的至少一个的记录功率的最佳电平 nd测试信号。