公开(公告)号：US07859968B2

公开(公告)日：2010-12-28

申请号：US12352304

申请日：2009-01-12

申请人： Takashi Kikukawa ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Hiroshi Shingai

发明人： Takashi Kikukawa ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Hiroshi Shingai

IPC分类号： G11B7/0045

CPC分类号： G11B7/005 ,  G11B7/1263 ,  G11B7/24

摘要： An information readout method for an optical information medium comprising an information recording layer having pits or recorded marks representative of information data involves the step of irradiating a laser beam to the information recording layer through an objective lens for providing readings of the pits or recorded marks. When the laser beam has a wavelength λ of 400 to 410 nm, the objective lens has a numerical aperture NA of 0.70 to 0.85, and the pits or recorded marks have a minimum size PL of up to 0.36λ/NA, readout is carried out at a power Pr of at least 0.4 mW for the laser beam. When the laser beam has a wavelength λ of 630 to 670 nm, the objective lens has a numerical aperture NA of 0.60 to 0.65, and the pits or recorded marks have a minimum size PL of up to 0.36λ/NA, readout is carried out at a power Pr of at least 1.0 mW for the laser beam. Pits or recorded marks of a size approximate to the resolution limit determined by diffraction can be read out at a high C/N.

摘要翻译： 包括具有表示信息数据的凹坑或记录标记的信息记录层的光信息介质的信息读出方法包括通过用于提供凹坑或记录标记的读数的物镜将激光束照射到信息记录层的步骤。 当激光束具有400至410nm的波长λ时，物镜的数值孔径NA为0.70至0.85，并且凹坑或记录标记具有高达0.36λ/ NA的最小尺寸PL，读出被执行 在激光束的功率Pr为至少0.4mW。 当激光束具有630至670nm的波长λ时，物镜的数值孔径NA为0.60至0.65，并且凹坑或记录标记具有高达0.36λ/ NA的最小尺寸PL，读出被执行 在激光束的功率Pr为至少1.0mW。 通过衍射确定的大小接近分辨率极限的刻痕或记录标记可以高C / N读出。

公开(公告)号：US20100103799A1

公开(公告)日：2010-04-29

申请号：US12585378

申请日：2009-09-14

申请人： Noriyuki Kawano ,  Tetsuya Nishiyama ,  Yoshinori Sato ,  Koji Mishima ,  Hajime Utsunomiya

发明人： Noriyuki Kawano ,  Tetsuya Nishiyama ,  Yoshinori Sato ,  Koji Mishima ,  Hajime Utsunomiya

IPC分类号： G11B7/135

CPC分类号： G11B7/1381 ,  G11B7/0909 ,  G11B7/131 ,  G11B7/1374 ,  G11B7/1378 ,  G11B2007/0013

摘要： An optical head device (optical head) for a multi-layered optical recording medium has a focus control mechanism that makes use of astigmatism. The focus control mechanism has a sensor lens that includes a cylindrical lens. The focus control mechanism causes a light beam having passed through the sensor lens to have astigmatism, thereby being focused linearly in the Y direction on a front focal line located closer to the sensor lens and focused linearly in the X direction at a rear focal line located farther therefrom. The optical head also includes a photodetector which is disposed between the front focal line and the rear focal line to detect a focal position from the shape of a light beam. At the position of the front focal line, a shield plate with a window portion is disposed. The window portion has a size so as to allow the focal line to pass therethrough and shield stray light reflected from an unfocused recording layer.

摘要翻译： 用于多层光学记录介质的光学头装置（光学头）具有利用散光的聚焦控制机构。 聚焦控制机构具有包括柱面透镜的传感器透镜。 聚焦控制机构使已经通过传感器透镜的光束具有散光，从而在位于更靠近传感器透镜的前焦点上沿Y方向线性聚焦，并且在位于 距离更远 光头还包括一个光电检测器，它设置在前焦线和后焦线之间，以从光束的形状检测焦点位置。 在前焦线的位置设置有具有窗口部分的屏蔽板。 窗口部分具有允许焦线穿过其中并且屏蔽从未聚焦的记录层反射的杂散光的尺寸。

公开(公告)号：US07496019B2

公开(公告)日：2009-02-24

申请号：US10125476

申请日：2002-04-19

申请人： Takashi Kikukawa ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Hiroshi Shingai

发明人： Takashi Kikukawa ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Hiroshi Shingai

IPC分类号： G11B7/0045

CPC分类号： G11B7/005 ,  G11B7/1263 ,  G11B7/24

摘要： An information readout method for an optical information medium comprising an information recording layer having pits or recorded marks representative of information data involves the step of irradiating a laser beam to the information recording layer through an objective lens for providing readings of the pits or recorded marks. When the laser beam has a wavelength λ of 400 to 410 nm, the objective lens has a numerical aperture NA of 0.70 to 0.85, and the pits or recorded marks have a minimum size PL of up to 0.36λ/NA, readout is carried out at a power Pr of at least 0.4 mW for the laser beam. When the laser beam has a wavelength λ of 630 to 670 nm, the objective lens has a numerical aperture NA of 0.60 to 0.65, and the pits or recorded marks have a minimum size PL of up to 0.36λ/NA, readout is carried out at a power Pr of at least 1.0 mW for the laser beam. Pits or recorded marks of a size approximate to the resolution limit determined by diffraction can be read out at a high C/N.

摘要翻译： 包括具有表示信息数据的凹坑或记录标记的信息记录层的光信息介质的信息读出方法包括通过用于提供凹坑或记录标记的读数的物镜将激光束照射到信息记录层的步骤。 当激光束具有400至410nm的波长λ时，物镜的数值孔径NA为0.70至0.85，并且凹坑或记录标记具有高达0.36λ/ NA的最小尺寸PL，读出被执行 在激光束的功率Pr为至少0.4mW。 当激光束具有630至670nm的波长λ时，物镜的数值孔径NA为0.60至0.65，并且凹坑或记录的标记具有高达0.36λ/ NA的最小尺寸PL，读出被执行 在激光束的功率Pr为至少1.0mW。 通过衍射确定的大小接近分辨率极限的刻痕或记录标记可以高C / N读出。

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：US07297472B2

公开(公告)日：2007-11-20

申请号：US10507429

申请日：2003-03-10

申请人： Hisaji Oyake ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Masanori Shibahara ,  Kenji Yoneyama

发明人： Hisaji Oyake ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Masanori Shibahara ,  Kenji Yoneyama

IPC分类号： G11B7/45 ,  G11B7/26

CPC分类号： G11B7/261 ,  B23K26/0622 ,  B23K26/0823 ,  B23K26/0869 ,  B23K26/40 ,  B23K2103/50 ,  G03F7/70383 ,  G11B7/00456 ,  G11B7/24085 ,  G11B7/263 ,  G11B23/0085 ,  Y10S430/146 ,  Y10T428/24355 ,  Y10T428/31504

摘要： The present invention relates to a method for processing a photoresist-coated board, a method for manufacturing a stamper for a recording medium and a method for manufacturing a recording medium which can form a fine raised and depressed pattern having a uniform width after development even in the case where a laser beam having a relatively long wavelength is used for forming pre-pits on a recording medium with high accuracy. A photoresist-coated board 108 is constituted by laminating a light absorption layer 108b and a photosensitive material layer 108c on a glass substrate 108a in this order and is exposed to a laser beam 102 by condensing the laser beam 102 onto the photosensitive material layer 108c, thereby forming a raised and depressed pattern corresponding to pre-pits on the the photosensitive material layer 108. When the length of a pre-pit to be formed is shorter than 4 T, for example, the duty ratio of the pulse signal train input to the light modulator 109 is varied within a range from about 50% to 65% so that a pulse signal train having a higher duty ratio is generated as the length of a pre-pit to be formed becomes longer and the power of a laser beam is modulated by the thus generated pulse signal train. On the other hand, when the length of a pre-pit to be formed is equal to or longer than 4 T, for example, a pulse signal train having a constant duty ratio is generated independently of the length of the pre-pit to be formed and the power of a laser beam is modulated by the thus generated pulse signal train.

摘要翻译： 本发明涉及一种用于处理光刻胶涂覆板的方法，一种用于制造用于记录介质的压模的方法和一种用于制造记录介质的方法，该记录介质可以在显影后形成具有均匀宽度的细微凸起和凹陷图案， 使用具有较长波长的激光束以高精度在记录介质上形成预凹坑的情况。 通过将光吸收层108b和感光材料层108c依次层叠在玻璃基板108a上并通过将激光束102聚光到感光材料上而暴露于激光束102而构成光刻胶层108 层108c，从而形成对应于感光材料层108上的预凹坑的凸起和凹陷图案。 当要形成的预制凹坑的长度短于4T时，例如，输入到光调制器109的脉冲信号序列的占空比在约50％至65％的范围内变化，使得脉冲 随着要形成的预制凹坑的长度变长，激光束的功率由如此产生的脉冲信号列调制，产生具有较高占空比的信号序列。 另一方面，当要形成的预制凹坑的长度等于或大于4T时，例如，产生具有恒定占空比的脉冲信号序列，独立于预制凹坑的长度 形成的激光束的功率由如此产生的脉冲信号串调制。

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。