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公开(公告)号：US6143469A
公开(公告)日：2000-11-07
申请号：US282999
申请日：1999-03-31
申请人： Hiroyuki Ohta , Yoshitaka Sakaue , Eiji Ohno , Noboru Yamada
发明人： Hiroyuki Ohta , Yoshitaka Sakaue , Eiji Ohno , Noboru Yamada
IPC分类号： G11B7/0055 , G11B7/006 , G11B7/243 , G11B7/2534 , G11B7/2542 , G11B7/257 , G11B7/2578 , G11B7/2585 , G11B7/26 , G11B7/24
CPC分类号： G11B7/252 , G11B7/2578 , G11B7/26 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/2571 , G11B2007/25713 , G11B7/00557 , G11B7/006 , G11B7/2534 , G11B7/2542 , G11B7/2585 , Y10S430/146
摘要： A method for manufacturing an optical information recording medium having an excellent mechanical strength, thermal stability, and improved overwrite cycle property can be provided by forming the dielectric layer by using a mixed target comprising ZnS and SiO.sub.2 in an atmosphere comprising rare gas and at least oxygen at the side where the dielectric layer does not contact to the recording layer. The optical information recording medium is manufactured by using the substrate, the recording layer comprising a material that varies reversibly between the optically identifiable states by an irradiation of a laser beam, and the dielectric layer at least one side of which has a two-layered structure at the upper and lower sides of the recording layer. At least one of the dielectric layers that does not contact to the recording layer is formed by using a mixed target comprising ZnS and SiO.sub.2 in a mixed atmosphere comprising rare gas and oxygen.
摘要翻译： 可以通过在包含稀有气体和至少氧气的气氛中使用包含ZnS和SiO 2的混合靶来形成介电层来提供具有优异的机械强度，热稳定性和改进的重写循环性能的光学信息记录介质的制造方法 在电介质层不与记录层接触的一侧。 光学信息记录介质是通过使用基板来制造的，该记录层包括通过激光束的照射在光学可识别状态之间可逆地变化的材料，以及至少一侧具有两层结构的介电层 在记录层的上侧和下侧。 通过在包含稀有气体和氧气的混合气氛中使用包含ZnS和SiO 2的混合靶，形成不与记录层接触的介电层中的至少一个。
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公开(公告)号：US5914214A
公开(公告)日：1999-06-22
申请号：US982650
申请日：1997-12-02
申请人： Hiroyuki Ohta , Yoshitaka Sakaue , Eiji Ohno , Noboru Yamada
发明人： Hiroyuki Ohta , Yoshitaka Sakaue , Eiji Ohno , Noboru Yamada
IPC分类号： G11B7/0055 , G11B7/006 , G11B7/243 , G11B7/2534 , G11B7/2542 , G11B7/257 , G11B7/2578 , G11B7/2585 , G11B7/26 , G11B7/24
CPC分类号： G11B7/252 , G11B7/2578 , G11B7/26 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/2571 , G11B2007/25713 , G11B7/00557 , G11B7/006 , G11B7/2534 , G11B7/2542 , G11B7/2585 , Y10S430/146
摘要： A method for manufacturing an optical information recording medium having an excellent mechanical strength, thermal stability, and improved overwrite cycle property can be provided by forming the dielectric layer by using a mixed target comprising ZnS and SiO.sub.2 in an atmosphere comprising rare gas and at least oxygen at the side where the dielectric layer does not contact to the recording layer. The optical information recording medium is manufactured by using the substrate, the recording layer comprising a material that varies reversibly between the optically identifiable states by an irradiation of a laser beam, and the dielectric layer at least one side of which has a two-layered structure at the upper and lower sides of the recording layer. At least one of the dielectric layers that does not contact to the recording layer is formed by using a mixed target comprising ZnS and SiO.sub.2 in a mixed atmosphere comprising rare gas and oxygen.
摘要翻译： 可以通过在包含稀有气体和至少氧气的气氛中使用包含ZnS和SiO 2的混合靶来形成介电层来提供具有优异的机械强度，热稳定性和改进的重写循环性能的光学信息记录介质的制造方法 在电介质层不与记录层接触的一侧。 光学信息记录介质是通过使用基板来制造的，该记录层包括通过激光束的照射在光学可识别状态之间可逆地变化的材料，以及至少一侧具有两层结构的介电层 在记录层的上侧和下侧。 通过在包含稀有气体和氧气的混合气氛中使用包含ZnS和SiO 2的混合靶，形成不与记录层接触的介电层中的至少一个。
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公开(公告)号：US6033535A
公开(公告)日：2000-03-07
申请号：US477628
申请日：1995-06-07
申请人： Eiji Ohno , Yoshitaka Sakaue , Kenichi Nagata , Nobuo Akahira , Masahide Yokoyama , Hiroshi Hayata , Noboru Yamada
发明人： Eiji Ohno , Yoshitaka Sakaue , Kenichi Nagata , Nobuo Akahira , Masahide Yokoyama , Hiroshi Hayata , Noboru Yamada
CPC分类号： G11B7/243 , C23C14/3414 , C23C14/3464 , G11B7/26 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： The present invention is to provide a method for manufacturing the PCE optical information recording disk under control of not only the crystallization velocity but also the complex index of refraction and thus the reflectance on the disk surface.The PCE optical information recording disk is suitable to be used under the constant angular velocity (the constant rotational numbers wherein the disk has a characteristic that the crystallization velocity is designed to become faster from inside area of the disk to outside area in the radical direction thereof under control of not only the crystallization velocity but also the complex index of refraction and thus the reflectance on the disk surface.In the case of mass production and high film formation to be required, the present invention provides an effective method for manufacturing the optical disk by means of sputtering from at least two targets at the same time in a manner that the crystallization velocity is increased in a radial direction from inside area to outside area in the disk.
摘要翻译： 本发明提供一种用于制造PCE光学信息记录盘的方法，该方法不仅可以控制结晶速度，而且可以控制复合折射率，从而在盘表面上的反射率。 PCE光学信息记录盘适用于以恒定角速度（其中盘具有结晶速度设计成从盘的内部区域到其沿自由度方向的外部区域变得更快的特性的恒定角速度 不仅可以控制结晶速度，而且可以控制复杂的折射率，从而提高光盘表面的反射率。在大量生产和需要高成膜的情况下，本发明提供了一种制造光盘的有效方法 通过同时从至少两个靶的溅射以使得结晶速度在盘的内部区域到外部区域的径向方向上增加的方式。
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公开(公告)号：US6146734A
公开(公告)日：2000-11-14
申请号：US459453
申请日：1999-12-13
申请人： Eiji Ohno , Yoshitaka Sakaue , Kenichi Nagata , Nobuo Akahira , Masahide Yokoyama , Hiroshi Hayata , Noboru Yamada
发明人： Eiji Ohno , Yoshitaka Sakaue , Kenichi Nagata , Nobuo Akahira , Masahide Yokoyama , Hiroshi Hayata , Noboru Yamada
CPC分类号： G11B7/243 , C23C14/3414 , C23C14/3464 , G11B7/26 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： The present invention is to provide a method for manufacturing the PCE optical information recording disk under control of not only the crystallization velocity but also the complex index of refraction and thus the reflectance on the disk surface.The PCE optical information recording disk is suitable to be used under the constant angular velocity (the constant rotational numbers wherein the disk has a characteristic that the crystallization velocity is designed to become faster from inside area of the disk to outside area in the radical direction thereof under control of not only the crystallization velocity but also the complex index of refraction and thus the reflectance on the disk surface.In the case of mass production and high film formation to be required, the present invention provides an effective method for manufacturing the optical disk by means of sputtering from at least two targets at the same time in a manner that the crystallization velocity is increased in a radial direction from inside area to outside area in the disk.
摘要翻译： 本发明提供一种用于制造PCE光学信息记录盘的方法，该方法不仅可以控制结晶速度，而且可以控制复合折射率，从而在盘表面上的反射率。 PCE光学信息记录盘适用于以恒定角速度（其中盘具有结晶速度设计成从盘的内部区域到其沿自由度方向的外部区域变得更快的特性的恒定角速度 不仅可以控制结晶速度，而且可以控制复杂的折射率，从而提高光盘表面的反射率。在大量生产和需要高成膜的情况下，本发明提供了一种制造光盘的有效方法 通过同时从至少两个靶的溅射以使得结晶速度在盘的内部区域到外部区域的径向方向上增加的方式。
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公开(公告)号：US5505835A
公开(公告)日：1996-04-09
申请号：US199550
申请日：1994-02-22
申请人： Yoshitaka Sakaue , Eiji Ohno , Kazuhisa Ide , Kenichi Nagata , Noboru Yamada
发明人： Yoshitaka Sakaue , Eiji Ohno , Kazuhisa Ide , Kenichi Nagata , Noboru Yamada
摘要： In forming steps of a recording layer or a dielectric layer of a phase change type optical disk by sputtering, a discharge gas which includes at least one of Kr gas and Xe gas is used. Alternatively, at least one of Ar gas and N.sub.2 gas may be further added to the discharge gas. Forming the recording layer or the dielectric layer of the phase change type optical disk in these discharge gases enables preventing of the introduction of the discharge gas into each layer during the forming steps. As a result, the void generation and growth in the recording layer is suppressed. Consequently, the deterioration of the cycle life characteristics due to repeated overwrite operations can be restrained. Therefore, high reliability and long life of the phase change type optical disk is attained.
摘要翻译： 在通过溅射形成相变型光盘的记录层或电介质层的步骤中，使用包括Kr气体和Xe气体中的至少一种的放电气体。 或者，可以进一步向放电气体中添加Ar气体和N 2气体中的至少一种。 在这些放电气体中形成相变型光盘的记录层或电介质层能够防止在成形步骤期间将放电气体引入各层。 结果，抑制了记录层中的空隙生成和生长。 因此，可以抑制由于重复的重写操作引起的循环寿命特性的劣化。 因此，可以实现相变型光盘的高可靠性和长寿命。
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公开(公告)号：US5527661A
公开(公告)日：1996-06-18
申请号：US512131
申请日：1995-08-07
申请人： Nobuo Akahira , Eiji Ohno , Kenichi Nishiuchi , Kenichi Nagata , Yoshitaka Sakaue , Noboru Yamada
发明人： Nobuo Akahira , Eiji Ohno , Kenichi Nishiuchi , Kenichi Nagata , Yoshitaka Sakaue , Noboru Yamada
CPC分类号： G11B7/24 , G11B7/0051 , G11B7/243 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B7/00557 , G11B7/2534 , G11B7/2542 , G11B7/2595 , Y10S430/146
摘要： An optical recording medium according to the present invention includes a substrate, and a recording film formed on the substrate, when receiving a laser beam for recording, the recording film taking either a first structural state or a second structural state according to the intensity of the laser beam; when receiving a laser beam for reproducing, the recording film partially changing the optical phase of the laser beam for reproducing according to the structural state, thereby changing the intensity of the laser beam for reproducing, wherein the optical absorbance of the recording film in the first structural state is substantially equal to that of the recording film in the second structural state, and the refractive index of the recording film in the first structural state is substantially different from that of the recording film in the second structural state.
摘要翻译： 根据本发明的光记录介质包括基板和形成在基板上的记录膜，当接收用于记录的激光束时，根据记录膜的强度采用第一结构状态或第二结构状态的记录膜 激光束; 当接收到用于再现的激光束时，记录膜根据结构状态部分地改变用于再现的激光束的光学相位，由此改变用于再现的激光束的强度，其中记录膜在第一 结构状态基本上等于第二结构状态下的记录膜的结构状态，并且在第一结构状态下的记录膜的折射率与第二结构状态下的记录膜的折射率基本不同。
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公开(公告)号：US5750228A
公开(公告)日：1998-05-12
申请号：US565992
申请日：1995-12-01
申请人： Yoshitaka Sakaue , Eiji Ohno , Kazuhisa Ide , Kenichi Nagata , Noboru Yamada
发明人： Yoshitaka Sakaue , Eiji Ohno , Kazuhisa Ide , Kenichi Nagata , Noboru Yamada
CPC分类号： G11B7/266 , C23C14/0623 , C23C14/34 , G11B7/243 , G11B7/257 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25715 , G11B2007/25716 , G11B7/00454 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： An optical information storage medium includes a multilayer structure formed on a substrate. The multilayer structure is formed by a sputtering process in a discharge gas and includes at least a first dielectric layer, a recording layer which shows reversible phase change between an amorphous phase and a crystal phase, and a second dielectric layer. The multilayer structure contains sufficiently small amount of the discharge gas so that a limited amount or less of voids of the discharge gas generates in the recording layer during repeated overwrite operations.
摘要翻译： 光学信息存储介质包括形成在基板上的多层结构。 多层结构通过在放电气体中的溅射工艺形成，并且至少包括第一介电层，在非晶相和结晶相之间显示可逆相变的记录层和第二介电层。 多层结构包含足够少量的放电气体，使得在反复重写操作期间在记录层中产生有限量的或更少的排出气体的空隙。
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公开(公告)号：US5745475A
公开(公告)日：1998-04-28
申请号：US884318
申请日：1997-06-27
申请人： Eiji Ohno , Kenichi Nishiuchi , Yoshitaka Sakaue , Kazuhisa Ide , Naoyasu Miyagawa , Nobuo Akahira
发明人： Eiji Ohno , Kenichi Nishiuchi , Yoshitaka Sakaue , Kazuhisa Ide , Naoyasu Miyagawa , Nobuo Akahira
CPC分类号： G11B7/00718 , G11B7/24 , G11B7/24085
摘要： An optical information recording medium includes: a substrate including a groove having a concave shape and a land having a convex shape adjacent to the groove; and a recording layer on the substrate, wherein the recording layer consists of a material which changes between a first state and a second state whose optical property is different from that of the first state, a first portion of the optical information recording medium including a portion in the first state of the recording layer having a first reflectance, and a second portion of the optical information recording medium including a region in the second state of the recording layer having a second reflectance which is different from the first reflectance, whereby information is recorded onto the groove and the land, and wherein a ratio of the first reflectance to the second reflectance, a phase of reflected light from the first portion and a phase of reflected light from the second portion are set such that at least one of an amplitude and a carrier to noise ratio (CNR) of a signal obtained by reproducing information from the groove is approximately identical to that from the land.
摘要翻译： 一种光学信息记录介质，包括：具有凹形槽的凹槽和与凹槽相邻的具有凸形的凹槽的基板; 以及基板上的记录层，其中所述记录层由在第一状态和第二状态之间变化的材料组成，所述材料的光学性质与所述第一状态不同，所述光学信息记录介质的第一部分包括部分 在具有第一反射率的记录层的第一状态下，并且光信息记录介质的第二部分包括具有与第一反射率不同的第二反射率的记录层的第二状态的区域，由此记录信息 并且其中所述第一反射率与所述第二反射率的比率，来自所述第一部分的反射光的相位和来自所述第二部分的反射光的相位被设置为使得至少一个振幅和 通过从槽重放信息而获得的信号的载波噪声比（CNR）与从陆地大致相同。
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公开(公告)号：US06660451B1
公开(公告)日：2003-12-09
申请号：US09592126
申请日：2000-06-12
申请人： Yoshitaka Sakaue , Eiji Ohno
发明人： Yoshitaka Sakaue , Eiji Ohno
IPC分类号： G11B724
CPC分类号： G11B7/257 , G11B7/00454 , G11B7/00718 , G11B7/243 , G11B7/2534 , G11B7/2542 , G11B7/2595 , G11B2007/24306 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/2571 , G11B2007/25713 , Y10S430/146
摘要： An optical information recording medium that is a phase-change type optical disk includes, on a transparent substrate having a land and a groove, a phase-change type recording layer in which an optically detectable reversible change occurs between an amorphous phase and a crystalline phase by irradiation with an energy beam, wherein dielectric layers are provided so as to be in contact with at least one side of the phase-change type recording layer, the phase-change type recording layer contains at least one selected from the group consisting of Te, Se, Sb, In, Ge, and Ag as a main component, aid the dielectric layers contain, as main components thereof, at least one selected from the group consisting of Ge and Si, and N. The dielectric layers contain an element &bgr; (where &bgr; is at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, Cu, Ag, Au, Zn, and Cd) or an element &ggr; (where &ggr; is at least one element selected from the group consisting of Sb, Te, Se, Sn, Ga, and In), and the phase-change type recording layer contains an element &agr; (where &agr; is at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, Cu, Ag, Au, Zn, and Cd). Thus, the optical information recording medium of the present invention exhibits satisfactory cycle characteristics, in which movement of a material in a phase-change type recording layer is suppressed even with a large number of repetitions of so-called land & groove recording.
摘要翻译： 作为相变型光盘的光学信息记录介质，在具有焊盘和沟槽的透明基板上，包括在非晶相和结晶相之间发生可光学检测的可逆变化的相变型记录层 通过用能量束照射，其中提供电介质层以与相变型记录层的至少一侧接触，所述相变型记录层包含选自由Te组成的组中的至少一种 ，Se，Sb，In，Ge和Ag作为主要成分，有助于电介质层含有选自Ge和Si以及N中的至少一种作为其主要成分。介电层含有元素β （其中β为选自Ti，Zr，Hf，V，Nb，Ta，Cr，Mo，W，Mn，Tc，Re，Cu，Ag，Au，Zn和Cd中的至少一种元素）或 元素伽马（其中γ是至少一个元素， 由Sb，Te，Se，Sn，Ga和In组成），相变型记录层含有元素α（其中α为选自Ti，Zr，Hf，V中的至少一种元素 ，Nb，Ta，Cr，Mo，W，Mn，Tc，Re，Cu，Ag，Au，Zn和Cd）。 因此，本发明的光学信息记录介质表现出令人满意的循环特性，其中甚至在所谓的凹槽和凹槽记录的重复次数下，相变型记录层中的材料的移动被抑制。
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公开(公告)号：US5745467A
公开(公告)日：1998-04-28
申请号：US725944
申请日：1996-10-08
申请人： Yoshitaka Sakaue , Kenichi Nishiuchi , Eiji Ohno
发明人： Yoshitaka Sakaue , Kenichi Nishiuchi , Eiji Ohno
IPC分类号： G11B20/10 , G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/006 , G11B7/125 , G11B7/30
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/00454 , G11B7/006 , G11B7/00557
摘要： In mark length modulation recording, a mark end portion correction pulse train is added to a recording pulse train, or laser radiation with bias power is applied between the recording pulse train and laser radiation with cooling power or the mark end portion correction pulse train, furthermore, the start time of the cooling power radiation, the duration of the cooling power radiation, and the shape of the mark end portion correction pulse train are varied in accordance with the mark length to be recorded, further, in CAV mode, the start time of the cooling power radiation or the duration of the cooling power radiation is varied in accordance with disk radius position, and when the recording pulse train consists of a start pulse, an end pulse, and pulses between the start and end pulses, laser radiation with cooling power is applied, or laser radiation with bias power is applied between the recording pulse train and cooling power application, and when the recording pulse train is varied in accordance with mark length and mark spacing, the timing to start the laser radiation with cooling power is delayed by a predetermined amount from the end pulse or determined based on the clock.
摘要翻译： 在标记长度调制记录中，将标记结束部分校正脉冲串加到记录脉冲串上，或者在记录脉冲串和具有冷却功率的激光辐射或标记端部校正脉冲串之间施加偏置功率的激光辐射 冷却功率辐射的开始时间，冷却功率辐射的持续时间和标记端部校正脉冲串的形状根据要记录的标记长度而变化，进一步在CAV模式下，开始时间 的冷却功率辐射或冷却功率辐射的持续时间根据盘半径位置而变化，并且当记录脉冲串由起始脉冲，结束脉冲和起始和结束脉冲之间的脉冲组成时，激光辐射与 施加冷却功率，或者在记录脉冲串和冷却功率施加之间施加具有偏置功率的激光辐射，并且当记录脉冲串变化时 根据标记长度和标记间隔，用冷却功率开始激光辐射的时间从结束脉冲延迟预定量或基于时钟确定。
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