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：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：US07943223B2

公开(公告)日：2011-05-17

申请号：US12076070

申请日：2008-03-13

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

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

IPC分类号： B32B3/02

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以包含Sb，Ge和In的相变材料SbxGeyInz形成的记录膜，其原子比为x：y：z，其中满足5＆lt; 1; y＆nlE; 15和4＆nlE; z＆nlE; 15 。 如果满足x + y + z + a = 100和4＆nlE; a＆nlE; 15，记录膜还包括原子比α的Te。 在记录膜的激光入射侧设置由厚度为2nm以上且10nm以下的ZrO 2 -Cr 2 O 3膜形成的界面层。 当ZrO 2 -Cr 2 O 3膜的组成比由ZrO 2：Cr 2 O 3 = B:C（摩尔％）给出时，满足20＆lt; NlE; B＆NlE; 90,10＆amp; NlE; C＆NlE; 80和B + C = 100。

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：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：US20080165642A1

公开(公告)日：2008-07-10

申请号：US12003582

申请日：2007-12-28

申请人： Tatsuya Kato ,  Yasuhiro Takagi ,  Hideki Hirata ,  Hajime Utsunomiya

发明人： Tatsuya Kato ,  Yasuhiro Takagi ,  Hideki Hirata ,  Hajime Utsunomiya

IPC分类号： G11B20/00

CPC分类号： G11B20/10009 ,  G11B7/268 ,  G11B20/10481

摘要： In an evaluation device and an evaluation system, the level of base power is set higher than that in an optimal recording condition at a set room temperature and lower than the level of bias power. In particular, the level of the base power is set so that the jitter value of a recording mark and a blank, which is formed in a required high temperature environment, during reproduction in the high temperature environment becomes minimum. By evaluating the recording characteristic of a recording mark and a blank formed by irradiation of recording laser light in the form of a pulse train, the recording characteristic of an optical recording medium in high-speed recording in high temperature environment is evaluated.

摘要翻译： 在评价装置和评价系统中，将基本功率的电平设定为高于设定的室温下的最佳记录条件，并且低于偏置功率的电平。 特别地，基本功率的电平被设置为使得在高温环境中的再现期间在所需高温环境中形成的记录标记和空白的抖动值变得最小。 通过评价通过以脉冲串的形式记录激光形成的记录标记和空白的记录特性，评估在高温环境中的高速记录中的光记录介质的记录特性。

公开(公告)号：US5637372A

公开(公告)日：1997-06-10

申请号：US614307

申请日：1996-03-12

申请人： Junji Tominaga ,  Ryo Inaba ,  Masanori Kosuda ,  Tatsuya Kato

发明人： Junji Tominaga ,  Ryo Inaba ,  Masanori Kosuda ,  Tatsuya Kato

IPC分类号： B41M5/26 ,  G11B7/006 ,  G11B7/243 ,  B32B3/00

CPC分类号： G11B7/243 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B7/00454 ,  G11B7/006 ,  G11B7/2542 ,  G11B7/2585 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

摘要： In an optical recording medium comprising a phase change recording layer on a substrate, the recording layer is essentially of the formula:[{(Ag,Au).sub.a (Sb,Bi).sub.b (Te,Se).sub.c }.sub.1-d (In,Al,P).sub.d ].sub.1-e (Si,Ge,Sn,Pb).sub.ewherein 0.001.ltoreq.a.ltoreq.0.20, 0.40.ltoreq.b.ltoreq.0.90, 0.10.ltoreq.c.ltoreq.0.50, a+b+c=1, 0

摘要翻译： 在包括基底上的相变记录层的光记录介质中，记录层基本上具有下式：[{（Ag，Au）a（Sb，Bi）b（Te，Se）c} 1-d ，Al，P）d] 1-e（Si，Ge，Sn，Pb）e其中0.001≤i≤0.20，0.40≤b≤0.90，0.10

公开(公告)号：US20070148395A1

公开(公告)日：2007-06-28

申请号：US11638360

申请日：2006-12-14

申请人： Hiroshi Shingai ,  Hideaki Miura ,  Tatsuya Kato ,  Hiroshi Takasaki ,  Hironori Kakiuchi

发明人： Hiroshi Shingai ,  Hideaki Miura ,  Tatsuya Kato ,  Hiroshi Takasaki ,  Hironori Kakiuchi

IPC分类号： B32B3/02

CPC分类号： G11B7/2403 ,  G11B7/24038 ,  G11B7/2433 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25711 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716

摘要： A multilayer optical recording medium is provided with a totally reflective first information layer provided on a substrate and a second information layer being a translucent information layer provided via a spacer layer. The second information layer is composed of a TiO2 layer, a first dielectric layer, a reflective film, a second dielectric layer, a recording film, and a third dielectric layer, all of which are laminated together in this order. The first dielectric layer is made of ZrO2, Cr2O3, and Al2O3, and has a refractive index in the range of 1.84 to 2.20. If the recoding film is made of a material containing Sb as a main component, it is possible to strike a balance between high values of both the transmittance and the degree of modulation in recording information by laser light with a wavelength of 405 nm using an optical recording system having an optical system with a numerical aperture NA=0.85.

摘要翻译： 多层光学记录介质设置有设置在基板上的全反射第一信息层，第二信息层是通过间隔层提供的半透明信息层。 第二信息层由TiO 2层，第一电介质层，反射膜，第二电介质层，记录膜和第三电介质层组成，所有这些层叠在一起 这个命令。 第一电介质层由ZrO 2，Cr 2 O 3 O 3和Al 2 O 3 O 3， 3，折射率在1.84〜2.20的范围内。 如果记录膜由含有Sb作为主要成分的材料制成，则可以通过使用光学器件的波长为405nm的激光在记录信息中的透射率和调制度的高值之间取得平衡 具有数值孔径NA = 0.85的光学系统的记录系统。

公开(公告)号：US20050219984A1

公开(公告)日：2005-10-06

申请号：US10516424

申请日：2003-06-02

申请人： Tatsuya Kato ,  Hideki Hirata

发明人： Tatsuya Kato ,  Hideki Hirata

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B7/24038 ,  G11B7/243 ,  G11B5/09

CPC分类号： G11B7/0045 ,  G11B7/00456 ,  G11B7/1267 ,  G11B7/24 ,  G11B7/24038

摘要： It is an object of the present invention to provide a method for recording data in an optical recording medium which can record data in a write-once type optical recording medium at a high linear recording velocity using a laser beam having a low recording power. The method for recording data in an optical recording medium according to the present invention is constituted so that when data are to be recorded in an optical recording medium including a substrate, a first recording layer and a second recording layer by projecting a laser beam whose power is modulated in accordance with a pulse train pattern including pulses whose levels are set to levels corresponding to a recording power Pw and a bottom power Pb onto the optical recording medium and forming a recording mark at a predetermined region of the first recording layer and the second recording layer, as a linear recording velocity increases, the power of the laser beam is modulated using a pulse train pattern including a smaller number of pulses whose level is set to a level to the recording power Pw, thereby forming a recording mark. According to the present invention, since the power of a laser beam is modulated using a pulse train pattern including a smaller number of pulses whose level is set to a level to the recording power Pw as a linear recording velocity increases, it is possible to record data in an optical recording medium using a laser beam having a low recording power even when a linear recording velocity is high and on the other hand, it is possible to prevent cross-talk of data from increasing even when a linear recording velocity is low. Therefore, it is possible to employ a semiconductor laser having a relatively low output even when data are recorded at a high linear recording velocity.

摘要翻译： 本发明的目的是提供一种在光记录介质中记录数据的方法，该方法可以使用具有低记录功率的激光束以高线性记录速度在一次写入型光记录介质中记录数据。 根据本发明的用于在光学记录介质中记录数据的方法被构造成使得当数据要被记录在包括基板，第一记录层和第二记录层的光学记录介质中时，通过投射激光 根据脉冲序列模式进行调制，脉冲串模式包括其电平被设置为对应于光学记录介质上的记录功率Pw和底部功率Pb的电平，并在第一记录层的预定区域形成记录标记， 记录层，随着线性记录速度的增加，激光束的功率使用脉冲序列模式进行调制，该脉冲串模式包括较小数量的脉冲，其电平被设置为与记录功率Pw的水平，从而形成记录标记。 根据本发明，由于线性记录速度增加​​，使用脉冲序列调制激光束的功率，该脉冲串模式包括其电平被设置为与记录功率Pw相关的水平的较小数量的脉冲，因此可以记录 即使线性记录速度高，也使用具有低记录功率的激光束的光记录介质中的数据，另一方面，即使线性记录速度低，也可以防止数据串扰增加。 因此，即使当以高线性记录速度记录数据时，也可以采用具有相对较低输出的半导体激光器。