公开(公告)号：US20080310279A1

公开(公告)日：2008-12-18

申请号：US12155972

申请日：2008-06-12

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

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

IPC分类号： G11B3/74 ,  G11B7/00

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：US06403193B1

公开(公告)日：2002-06-11

申请号：US09531446

申请日：2000-03-20

申请人： Hiroshi Shingai ,  Hideki Hirata ,  Tatsuya Kato

发明人： Hiroshi Shingai ,  Hideki Hirata ,  Tatsuya Kato

IPC分类号： B32B302

CPC分类号： G11B7/258 ,  G11B7/00718 ,  G11B7/24035 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/259 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

摘要： An optical recording medium of the invention comprises a phase change type recording layer on a surface of a substrate with reading light incident on the recording layer through the substrate, and a dielectric layer provided in contact with the recording layer and on a side of the recording layer on which the reading light is incident. The substrate has a groove acting as a guide groove and a land between adjacent grooves so that the groove and land are used as recording tracks. The phase change type recording layer contains Ag, In, Sb and Te as main components, and has a thickness tR defined by tR≦&lgr;p/20 where &lgr;p is a wavelength of the reading light. The dielectric layer has a thickness td1 that is represented in terms of an optical path length at the wavelength &lgr;p and defined by &lgr;p/2≦td1.

摘要翻译： 本发明的光记录介质包括在基板的表面上的相变型记录层，其中读取光通过基板入射在记录层上，并且介电层设置成与记录层接触并在记录侧 阅读灯入射的层。 基板具有用作引导槽的沟槽和相邻槽之间的焊盘，使得沟槽和焊盘用作记录轨道。 相变型记录层包含Ag，In，Sb和Te作为主要成分，其厚度tR由tR <= lambdp / 20定义，其中lambdp是读取光的波长。 电介质层的厚度td1以波长lambdp的光程长度表示，并由lambdp / 2 <= td1定义。

公开(公告)号：US07362682B2

公开(公告)日：2008-04-22

申请号：US10927539

申请日：2004-08-26

申请人： Hiroshi Shingai ,  Tatsuya Kato ,  Hideki Hirata

发明人： Hiroshi Shingai ,  Tatsuya Kato ,  Hideki Hirata

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/0062

摘要： A method for recording data in an optical recording disc including a substrate and a recording layer formed on the substrate and containing a phase change material as a primary component is constituted so that data can be recorded therein and data recorded therein can be erased by projecting thereonto at a high linear velocity equal to or higher than a predetermined linear velocity a laser beam whose power is modulated in accordance with a pulse train pattern including a plurality of kinds of unit pulse train patterns each having at least recording pulses whose levels are set to a recording power and bottom pulses whose levels are set to a bottom power onto the recording layer and forming a plurality of recording marks having different lengths in the recording layer, wherein among the plurality of kinds of unit pulse train patterns used for forming recording marks having different lengths those other than the unit pulse train pattern used for forming the shortest recording mark are determined so that they include recording pulses in a number corresponding to the length of the recording mark to be formed, that corresponding recording pulses included therein have a common pulse width and that each of them includes a bottom pulse whose pulse width is determined in accordance with the length of the recording mark to be formed at the end thereof. According to this method for recording data in an optical recording disc, it is possible to reduce jitter of a reproduced signal even when data are recorded at a low linear recording velocity in the recording layer designed to be suitable for recording data therein at a high linear recording velocity.

摘要翻译： 在包括形成在基板上并包含相变材料作为主要部件的基板和记录层的光记录盘中记录数据的方法被构成为能够记录数据并且可以通过在其上投影记录来擦除其中记录的数据 在等于或高于预定线速度的高线速度下，其功率根据包括多个单位脉冲序列的脉冲序列模式进行调制的激光束，每个单位脉冲串模式至少具有将其电平设置为 记录功率和底部脉冲，其电平被设置为记录层上的底部功率并且在记录层中形成具有不同长度的多个记录标记，其中在用于形成具有不同的记录标记的记录标记的多种单位脉冲串模式中 长度除了用于形成最短记录标记的单位脉冲串图案以外的那些 使得它们包括与要形成的记录标记的长度相对应的数字的记录脉冲，其中包括的相应记录脉冲具有公共脉冲宽度，并且它们中的每一个包括其脉冲宽度根据 要在其末端形成的记录标记的长度。 根据用于在光学记录盘中记录数据的方法，即使当数据以低线性记录速度记录在设计成适合于以高线性记录数据的记录层中的记录层时，也可以减少再现信号的抖动 记录速度。

公开(公告)号：US07173893B2

公开(公告)日：2007-02-06

申请号：US10489050

申请日：2002-09-05

申请人： Tatsuya Kato ,  Hiroshi Shingai ,  Hideki Hirata

发明人： Tatsuya Kato ,  Hiroshi Shingai ,  Hideki Hirata

IPC分类号： G11B5/09 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/0062

摘要： It is an object of the present invention to provide a method of recording information to an optical recording medium that is suited to achieving high data transfer rates.The optical recording medium according to the present invention comprises a method of recording information to an optical recording medium where information is recorded by forming on the optical recording medium a plurality of recording marks selected from a group consisting of several types of recording marks each with different lengths, wherein a first recording mark and a second recording mark contained within said group are formed with the number of pulses and the pulse spacing in the laser beam set substantially equal to each other. Thus, even in the case that one clock period (T) is shortened to achieve high transfer rates, recording marks with good shapes can be formed. In addition, control is simplified and it is possible to reduce the cost of a drive to which the present invention is applied.

摘要翻译： 本发明的目的是提供一种将信息记录到适于实现高数据传输速率的光记录介质上的方法。 根据本发明的光记录介质包括通过在光记录介质上形成多个记录标记来记录信息到光记录介质上的方法，所述多个记录标记选自由具有不同的几种类型的记录标记组成的组 长度，其中包含在所述组内的第一记录标记和第二记录标记以脉冲数形成，并且激光束中的脉冲间隔基本上彼此相等。 因此，即使在一个时钟周期（T）被缩短以实现高传输速率的情况下，也可以形成具有良好形状的记录标记。 此外，控制简化，并且可以降低应用本发明的驱动器的成本。

公开(公告)号：US20050083819A1

公开(公告)日：2005-04-21

申请号：US10501435

申请日：2003-01-10

申请人： Tatsuya Kato ,  Hiroshi Shingai ,  Hideki Hirata

发明人： Tatsuya Kato ,  Hiroshi Shingai ,  Hideki Hirata

IPC分类号： G11B7/0045 ,  G11B7/006 ,  G11B7/125 ,  G11B5/09

CPC分类号： G11B7/0062 ,  G11B7/00456

摘要： The present invention relates to a method of recording information to an optical recording medium that can reduce the influence from heat caused when neighboring recording marks are formed and can prevent cross-talk and cross-erase of information. According to the present invention, when forming recording marks in the optical recording medium by projecting a pulse-modulated laser beam thereonto, since the recording powers of a top pulse and a last pulse are set to Pw2 lower than the recording power Pw1 of any of intermediate pulses-and the width Tcl of a cooling pulse is set to be equal to or wider than 1.0 T wider than the width of a pulse of the recording power, it is possible to improve cooling efficiency when recording marks are formed, thereby decreasing thermal interference between recording marks and achieve high density recording and high data transfer rate.

摘要翻译： 本发明涉及一种将信息记录到光学记录介质上的方法，该方法可以减少在相邻记录标记形成时引起的热量的影响，并且可以防止信息的串扰和交叉擦除。 根据本发明，当通过在其上投射脉冲调制的激光束来在光学记录介质中形成记录标记时，由于顶部脉冲和最后一个脉冲的记录功率被设置为比记录功率Pw 1低 冷却脉冲的中间脉冲和宽度T cl中的任何一个被设置为等于或大于记录功率的脉冲宽度的1.0T，可以改善冷却 形成记录标记时的效率，从而降低记录标记之间的热干扰并实现高密度记录和高数据传输速率。

公开(公告)号：US20050063273A1

公开(公告)日：2005-03-24

申请号：US10927539

申请日：2004-08-26

申请人： Hiroshi Shingai ,  Tatsuya Kato ,  Hideki Hirata

发明人： Hiroshi Shingai ,  Tatsuya Kato ,  Hideki Hirata

IPC分类号： G11B7/0045 ,  G11B5/09 ,  G11B7/006 ,  G11B7/125

CPC分类号： G11B7/126 ,  G11B7/0062

摘要： A method for recording data in an optical recording disc including a substrate and a recording layer formed on the substrate and containing a phase change material as a primary component is constituted so that data can be recorded therein and data recorded therein can be erased by projecting thereonto at a high linear velocity equal to or higher than a predetermined linear velocity a laser beam whose power is modulated in accordance with a pulse train pattern including a plurality of kinds of unit pulse train patterns each having at least recording pulses whose levels are set to a recording power and bottom pulses whose levels are set to a bottom power onto the recording layer and forming a plurality of recording marks having different lengths in the recording layer, wherein among the plurality of kinds of unit pulse train patterns used for forming recording marks having different lengths those other than the unit pulse train pattern used for forming the shortest recording mark are determined so that they include recording pulses in a number corresponding to the length of the recording mark to be formed, that corresponding recording pulses included therein have a common pulse width and that each of them includes a bottom pulse whose pulse width is determined in accordance with the length of the recording mark to be formed at the end thereof. According to this method for recording data in an optical recording disc, it is possible to reduce jitter of a reproduced signal even when data are recorded at a low linear recording velocity in the recording layer designed to be suitable for recording data therein at a high linear recording velocity.

摘要翻译： 在包括形成在基板上并包含相变材料作为主要部件的基板和记录层的光记录盘中记录数据的方法被构成为能够记录数据并且可以通过在其上投影记录来擦除其中记录的数据 在等于或高于预定线速度的高线速度下，其功率根据包括多个单位脉冲序列的脉冲序列模式进行调制的激光束，每个单位脉冲串模式至少具有将其电平设置为 记录功率和底部脉冲，其电平被设置为记录层上的底部功率并且在记录层中形成具有不同长度的多个记录标记，其中在用于形成具有不同的记录标记的记录标记的多种单位脉冲串模式中 长度除了用于形成最短记录标记的单位脉冲串图案以外的那些 使得它们包括与要形成的记录标记的长度相对应的数字的记录脉冲，其中包括的相应记录脉冲具有公共脉冲宽度，并且它们中的每一个包括其脉冲宽度根据 要在其末端形成的记录标记的长度。 根据用于在光学记录盘中记录数据的方法，即使当数据以低线性记录速度记录在设计成适合于以高线性记录数据的记录层中的记录层时，也可以减少再现信号的抖动 记录速度。

公开(公告)号：US07960006B2

公开(公告)日：2011-06-14

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： B32B3/02

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。 记录膜由具有SbxTeeyGez元素和元素比的相变材料制成。 Y满足5＆nlE; y＆nlE; 15和z满足5＆nlE; z＆nlE; 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，a满足4＆nlE; a＆nlE; 15。 界面层由ZrO 2 -Cr 2 O 3膜厚度在2nm至10nm的范围内。 当ZrO 2：Cr 2 O 3 = C：D（摩尔％）时，ZrO 2 -Cr 2 O 3膜中的ZrO 2和Cr 2 O 3的组成比保持为C，满足20＆nlE; C＆nlE; 90，D满足10＆nlE; D＆nlE; 80，C D满足C + D = 100。 当ZrO 2：Y 2 O 3 =（100-X）：X（摩尔％）时，ZrO 2为稳定的含有Y 2 O 3的ZrO 2，稳定的ZrO 2中的ZrO 2和Y 2 O 3的组成比例成立，X满足2＆nlE; X＆nlE; 10。

公开(公告)号：US20050063272A1

公开(公告)日：2005-03-24

申请号：US10926789

申请日：2004-08-26

申请人： Hiroshi Shingai ,  Tatsuya Kato ,  Hideki Hirata

发明人： Hiroshi Shingai ,  Tatsuya Kato ,  Hideki Hirata

IPC分类号： G11B7/0045 ,  G11B5/09 ,  G11B7/006 ,  G11B7/125 ,  G11B7/243 ,  G11B7/258

CPC分类号： G11B7/243 ,  G11B7/0062 ,  G11B7/257 ,  G11B7/258 ,  G11B7/259 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

摘要： A method for recording data in an optical recording disc including a substrate and a recording layer formed on the substrate and containing a phase change material as a primary component is constituted so that data can be recorded therein and data recorded therein can be erased by projecting a laser beam thereonto at a high linear velocity equal to or higher than a predetermined linear velocity by a laser beam whose power is modulated in accordance with a pulse train pattern including a unit pulse train pattern having at least recording pulses whose levels are set to a recording power and bottom pulses whose levels are set to a bottom power onto the recording layer and forming at least one recording mark in the recording layer, wherein the unit pulse train pattern for forming one recording mark includes after a last recording pulse included therein a bottom pulse whose pulse width is determined in accordance with a width of the last pulse included therein. According to this method for recording data in an optical recording disc, it, is possible to reduce jitter of a reproduced signal even when data are recorded at a low linear recording velocity in the recording layer designed to be suitable for recording data therein at a high linear recording velocity.

摘要翻译： 在包括形成在基板上并且包含相变材料作为主要部件的基板和记录层的光记录盘中记录数据的方法被构成为可以将数据记录在其中并且可以通过将数据记录在其中来记录数据 激光束以等于或高于预定线速度的高线速度被激光束照射，该激光束的功率根据包括具有至少记录脉冲的单位脉冲串图案的脉冲序列模式被调制，其级别被设置为记录 功率和底部脉冲，其电平被设置为记录层上的底部功率并且在记录层中形成至少一个记录标记，其中用于形成一个记录标记的单位脉冲串图案包括在最后一个记录脉冲之后包括底部脉冲 其脉冲宽度根据其中包括的最后脉冲的宽度来确定。 根据用于在光学记录盘中记录数据的这种方法，即使当记录层中以低线性记录速度记录数据时，也可以减少再现信号的抖动，该记录层被设计为适于在高记录数据中记录数据 线性记录速度。

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。}