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31. 发明授权

US5811217A Optical information recording medium and optical information recording/reproducing method 失效
标题翻译：光信息记录介质和光信息记录/再现方法
公开(公告)号：US5811217A
公开(公告)日：1998-09-22
申请号：US257470
申请日：1994-06-09
申请人： Nobuo Akahira , Kenichi Nagata , Eiji Ohno , Kenichi Nishiuchi , Noboru Yamada
发明人： Nobuo Akahira , Kenichi Nagata , Eiji Ohno , Kenichi Nishiuchi , Noboru Yamada
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/24 , G11B7/241 , G11B7/254 , G11B7/257
CPC分类号： G11B7/24 , G11B7/00454 , Y10S430/146
摘要： An optical information recording medium, which includes a substrate, and a recording thin film layer provided on the base material and adapted to form variation in an amount optically detectable by absorbing at least laser light so as to record information by partially varying the recording thin film layer and to reproduce the information by optically detecting the variation amount. The optical information recording medium further includes transparent layers each provided in contact with the recording thin film layer, and each of the transparent layers has optical thickness in which, in at least two different wavelengths .lambda., integral multiple of .lambda./2 is added to the thickness giving the large laser light absorption and large optical variation amount, respectively. More specifically, the optically detectable amount is of a reflectance factor variation, and in the different wavelengths .lambda.1 and .lambda.2, with respect to the thicknesses d1 and d2 of the transparent layers which give the optical characteristic more than 60% in the absorption, and more than 20% in the reflectance factor variation, the thickness of each transparent layer is arranged to be the thickness d having relation as represented by a following equation. d=d1+(.lambda.1/2).times.m=d2+(.lambda.2/2).times.1 (m, l: positive integer or zero).
摘要翻译：一种光学信息记录介质，其包括基板和设置在基材上的记录薄膜层，并且适于通过至少吸收激光来形成光学上可检测的量的变化，以便通过部分地改变记录薄膜来记录信息并通过光学检测变化量再现信息。光学信息记录介质还包括各自设置成与记录薄膜层接触的透明层，并且每个透明层具有光学厚度，其中在至少两个不同波长λ中的λ/ 2的整数倍被添加到分别赋予大的激光吸收和大的光学变化量的厚度。更具体地说，光学上可检测的量是反射率变化，并且在不同波长λ1和λ2中，相对于在吸收中给出大于60％的光学特性的透明层的厚度d1和d2，和反射系数变化大于20％时，每个透明层的厚度被设置为具有如以下等式表示的关系的厚度d = d1 +（λ+ E，fra 1/2 + EE）xm = d2 +（λ+ E，fra 2/2 + EE）x1（m，l：正整数或零）。

32. 发明授权

US5729513A Data storage apparatus for recording and reproducing information on a recording medium by rotating the recording medium at different angular velocities 失效
标题翻译：数据存储装置，用于以不同的角速度旋转记录介质，在记录介质上记录和再现信息
公开(公告)号：US5729513A
公开(公告)日：1998-03-17
申请号：US438501
申请日：1995-05-10
申请人： Nobuo Akahira , Kenichi Nishiuchi , Eiji Ohno , Kenichi Nagata , Noboru Yamada
发明人： Nobuo Akahira , Kenichi Nishiuchi , Eiji Ohno , Kenichi Nagata , Noboru Yamada
IPC分类号： G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/007 , G11B19/12 , G11B19/247 , G11B19/26 , G11B19/28 , G11B20/12
CPC分类号： G11B7/00454 , G11B19/26 , G11B7/0079 , G11B7/00745
摘要： A track on the disk is divided into plural concentric zones on the radial position thereof. During recording, the angular velocity varies according to the zones accessed for recording, and the disk is driven at a rotational velocity whereby the angular velocity is constant within any single zone but decreases as the radial position of the zone of the accessed track approaches the outside circumference of the disk. During reproducing, the disk is driven at a rotational velocity whereby the angular velocity is constant in all zones. The range of change in the relative linear velocity of the head to the track is thus smaller and the change in the recording conditions is less during recording. During reproducing, there is no delay time required for rotational control of the disk, and the desired track can be more quickly accessed.
摘要翻译：磁盘上的轨道在其径向位置被分成多个同心区域。在记录期间，角速度根据被记录的区域而变化，并且以旋转速度驱动盘，其中角速度在任何单个区域内是恒定的，但随着被访问的轨道的区域的径向位置接近外部而减小盘的周长。在再现期间，以旋转速度驱动盘，其中角速度在所有区域中是恒定的。因此，磁头与磁道的相对线速度的变化范围变小，记录时记录条件的变化较小。在再现期间，不需要用于盘的旋转控制的延迟时间，并且可以更快速地访问期望的轨道。

33. 发明授权

US5385806A Optical information recording medium 失效
标题翻译：光信息记录介质
公开(公告)号：US5385806A
公开(公告)日：1995-01-31
申请号：US842731
申请日：1992-02-26
申请人： Eiji Ohno , Noboru Yamada , Masatoshi Takao
发明人： Eiji Ohno , Noboru Yamada , Masatoshi Takao
IPC分类号： B41M5/26 , G11B7/243 , G03C1/705
CPC分类号： G11B7/243 , G11B2007/24308 , G11B2007/2431 , G11B2007/24316 , G11B2007/24324 , Y10S430/145 , Y10S430/146
摘要： This invention, related to an optical information recording medium for recording, reproducing and erasing information by causing changes in the optical constant by using light, heat or other means, is intended to propose a recording film material of a novel composition in order to realize higher transfer rate of signals. Specifically, it is an alloy composed of indium (In) and A and B (A is at least one element selected from Ag, Cu, and B is at least one element selected from S, Se, Te), and more particularly it is composed in the vicinity of the stoichiometric compound of the above three-element system.Since the recording film material of this invention is fast in the rate of crystallization, it is possible to present an optical information recording medium that can cope with the forthcoming trend of higher transfer rate of signals.
摘要翻译：本发明涉及一种用于通过使用光，热或其它方式引起光学常数的改变来记录，再现和擦除信息的光学信息记录介质，旨在提出一种新型组合物的记录膜材料，以便实现更高的信号传输速率。具体地说，它是由铟（In）和A和B组成的合金（A是选自Ag，Cu和B中的至少一种元素是选自S，Se，Te中的至少一种元素），更特别地，在上述三元素体系的化学计量化合物附近。由于本发明的记录膜材料的结晶速度快，所以可以呈现一种光信息记录介质，可以应付信号传输速率较快的趋势。

34. 发明授权

US5272667A Optical information recording apparatus for recording optical information in a phase change type optical recording medium and method therefor 失效
标题翻译：用于在相变型光学记录介质中记录光学信息的光学信息记录装置及其方法
公开(公告)号：US5272667A
公开(公告)日：1993-12-21
申请号：US636919
申请日：1990-12-31
申请人： Noboru Yamada , Kenichi Nishiuchi , Eiji Ohno , Nobuo Akahira
发明人： Noboru Yamada , Kenichi Nishiuchi , Eiji Ohno , Nobuo Akahira
IPC分类号： G11B7/0045 , G11B7/006 , G11B7/125 , G11B7/243 , G11B7/257 , G11B7/2585 , G11B7/2595 , G11B7/00 , G11C13/04
CPC分类号： G11B7/126 , G11B7/00454 , G11B7/006 , G11B7/243 , G11B7/257 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B7/2585 , G11B7/2595
摘要： There is disclosed an optical information recording apparatus for recording optical information in a phase change type optical recording medium and a method therefor. The order of the atomic arrangement of the optical recording medium is capable of changing between a first state of order thereof and a second state of order thereof higher than the first state. A first light source generates a first light including the optical information and projecting the generated first light on the optical recording medium so as to change the order of the atomic arrangement of the optical recording medium from the first state to the second state and from the second state to the first state, mainly by heating the optical recording medium. A second light source generates a second light and projects the generated second light on the optical recording medium together with the first light so as to accelerate the change in the order of the atomic arrangement of the optical recording medium from the first state to the second state caused by the first light source by mainly exciting electrons in the optical recording medium, thereby recording the optical information in the optical recording medium.
摘要翻译：公开了一种用于在相变型光学记录介质中记录光学信息的光学信息记录装置及其方法。光记录介质的原子排列的顺序能够在第一状态和第二状态之间改变高于第一状态。第一光源产生包括光学信息的第一光，并将生成的第一光投射在光学记录介质上，以便将光学记录介质的原子排列从第一状态到第二状态的顺序改变到第二状态状态到第一状态，主要通过加热光学记录介质。第二光源产生第二光，并将产生的第二光与第一光一起投射在光记录介质上，以便加速光记录介质的原子排列从第一状态到第二状态的顺序的改变由光学记录介质中的主要激发电子由第一光源引起，从而将光学信息记录在光学记录介质中。

35. 发明授权

US5247494A Method for recording and reproducing information on and from an optical disk having a read-only recorded zone and a writable and readable zone using a spot laser light 失效
标题翻译：在具有只读记录区域的光盘上记录信息的方法和使用点激光的可写入区域
公开(公告)号：US5247494A
公开(公告)日：1993-09-21
申请号：US497852
申请日：1990-03-23
申请人： Eiji Ohno , Noboru Yamada
发明人： Eiji Ohno , Noboru Yamada
IPC分类号： G11B7/007 , G11B20/10
CPC分类号： G11B7/0079 , G11B20/10 , G11B7/007 , G11B2220/211 , G11B7/00736
摘要： An optical disk is provided with a pre-recorded ROM zone and at least one of the write-once zone and an erasable-writable zone. Two types of information are pre-recorded in the ROM zone, including first information for controlling reading from and writing to the non-ROM zone or zones, and second information for use in data information production. Information is recorded and read as localized differences in reflectivity on the disk. A laser used for reading and writing is operated at a first, lower power level for reading and at a second, higher power level for writing. Data information is created using second information read from the ROM zone, and is written to and reproduced from the non-ROM zone or zones.
摘要翻译：光盘具有预先记录的ROM区和至少一个一次写入区和可擦写区。两种类型的信息被预先记录在ROM区域中，包括用于控制从非ROM区域或区域的读取和写入的第一信息，以及用于数据信息生成的第二信息。信息被记录和读取为磁盘上的反射率的局部差异。用于读取和写入的激光器以第一较低功率电平进行读取，并在第二较高功率电平下进行写入。使用从ROM区域读取的第二信息创建数据信息，并且从非ROM区域或区域写入和再现数据信息。

36. 发明授权

US5233599A Optical disk with a recording layer composed of tellurium, antimony, and germanium 失效
标题翻译：具有由碲，锑和锗组成的记录层的光盘
公开(公告)号：US5233599A
公开(公告)日：1993-08-03
申请号：US765512
申请日：1991-09-25
申请人： Eiji Ohno , Kenichi Nishiuchi , Noboru Yamada , Nobuo Akahira
发明人： Eiji Ohno , Kenichi Nishiuchi , Noboru Yamada , Nobuo Akahira
IPC分类号： G11B7/0045 , G11B7/24 , G11B7/241 , G11B7/243 , G11B7/257 , G11B7/258
CPC分类号： G11B7/241 , G11B7/00454 , G11B7/24 , G11B7/2433 , G11B7/258 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25715 , G11B2007/25716 , G11B7/2534 , G11B7/2585 , G11B7/2595
摘要： A rewritable phase change optical disk in which a first dielectric film, a recording film, a second dielectric film and a reflecting film are stacked on a substrate in this order; the recording film having composition defined by a formula Ge.sub.x Sb.sub.y Te.sub.z wherein x, y and z are atomic percentages ranging from 7 to 17, 34 to 44 and 44 to 54, respectively, the x, y and z totalling 100; the recording film having a thickness of 10 to 35 nm; the second dielectric film having a thickness of 5 to 40 nm; the reflecting film being made of one or an alloy of at least Au, Al, Ti, Cr and Ni and having a thickness of 35 nm or more.
摘要翻译：将第一电介质膜，记录膜，第二电介质膜和反射膜依次堆叠在基板上的可重写相变光盘; 记录膜具有由式GexSbyTez定义的组成，其中x，y和z分别为7至17,34至44和44至54的原子百分比，x，y和z总计100; 记录膜的厚度为10〜35nm; 所述第二电介质膜的厚度为5〜40nm; 反射膜由至少Au，Al，Ti，Cr和Ni的一种或合金制成，厚度为35nm以上。

37. 发明授权

US4939013A Optical information storing medium 失效
标题翻译：光信息存储介质
公开(公告)号：US4939013A
公开(公告)日：1990-07-03
申请号：US320789
申请日：1989-03-09
申请人： Kunio Kimura , Noboru Yamada , Susumu Sanai , Eiji Ohno
发明人： Kunio Kimura , Noboru Yamada , Susumu Sanai , Eiji Ohno
IPC分类号： B41M5/26 , G11B7/243
CPC分类号： G11B7/243 , G11B2007/24308 , G11B2007/24312 , G11B2007/24316 , G11B2007/25706 , G11B2007/25716 , G11B7/2531 , G11B7/2534 , Y10S428/913 , Y10S430/141 , Y10S430/146
摘要： Optical information active layer mainly composed of a quaternary system of Te-Ge-Sn-Au, with composition ratios of Te, Ge and Sn that lie within an area represented by points A B C D and E on FIG. 1, with an additional amount of Au that is 1-40 atomic % of the quaternary system of Te-Ge-Sn-Au. The optical information active layer can be melted readily by a laser diode thereby achieving a high recording sensitivity, because it contains Te.sub.2 Au alloy having low melting point, CHR and erasability after repeated use and long term storage are small, and since excessive Te in the information active layer is stabilized by formings of Ge Te Su Te and Au Te.
摘要翻译：光学信息活性层主要由Te-Ge-Sn-Au的四元体系组成，Te，Ge和Sn的组成比位于由图1中的点A B C D和E表示的区域内。 1，附加量为Te-Ge-Sn-Au四元体系的1-40原子％的Au。光信息活性层可以被激光二极管容易地熔化，从而实现高记录灵敏度，因为它含有在重复使用和长期储存之后具有低熔点，CHR和可擦除性的Te2金合金，并且由于过量的Te 信息活动层通过Ge Te Su Te和Au Te的成形而稳定。

38. 发明授权

US5750228A Optical information storage medium 失效
标题翻译：光信息存储介质
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
IPC分类号： C23C14/06 , C23C14/34 , G11B7/243 , G11B7/257 , G11B7/26 , B32B3/00
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。

39. 发明授权

US5635267A Optical information recording medium of phase change type having variably grooved tracks depending on their radial locations 失效
标题翻译：相变型的光学信息记录介质根据其径向位置具有可变的凹槽轨迹
公开(公告)号：US5635267A
公开(公告)日：1997-06-03
申请号：US264496
申请日：1994-06-23
申请人： Noboru Yamada , Kenichi Nishiuchi , Shigeaki Furukawa , Nobuo Akahira , Eiji Ohno , Kenichi Nagata , Rie Kojima
发明人： Noboru Yamada , Kenichi Nishiuchi , Shigeaki Furukawa , Nobuo Akahira , Eiji Ohno , Kenichi Nagata , Rie Kojima
IPC分类号： G11B7/007 , B32B3/02
CPC分类号： G11B7/0079 , G11B7/24079 , Y10S428/913
摘要： In an optical information recording medium such that a recording layer undergoing an optically detectable phase change by absorbing a laser beam is formed on a transparent substrate having geometrically concavo-convex groove tracks concentrically or spirally formed on its surface, the shapes of the groove tracks are variably determined continuously or stepwise depending on the material of the substrate, the structure of the recording layer, and the radial locations of the tracks so that the thermal diffusivity of heat generated in the recording layer becomes larger in an inner part than in an outer part whereby the differences of recording characteristics between in an inner part and in an outer part are suppressed, and the effective recording area is enlarged. There is also disclosed an optical information recording medium having outer zone in which the groove width decreases monotonically or stepwise as recording radius decreases and inner zone in which the land width increases monotonically or stepwise as recording radius increases.
摘要翻译：在光学信息记录介质中，使得通过吸收激光束经历可光学检测的相位变化的记录层在其表面上同心地或螺旋地形成有几何凹凸槽轨道的透明基板上形成，凹槽轨迹的形状为根据基板的材料，记录层的结构和轨道的径向位置可变地确定连续或逐步地确定，使得在记录层中产生的热的热扩散率在内部比在外部部分变大从而抑制了内部和外部之间的记录特性的差异，并且有效记录区域被扩大。还公开了一种具有外部区域的光学信息记录介质，其中随着记录半径减小，凹槽宽度逐渐减小或逐步减小，并且随着记录半径增加，平面宽度单调或逐步增加的内部区域。

40. 发明授权

US5545454A Optical information recording medium and method of designing its structure 失效
公开(公告)号：US5545454A
公开(公告)日：1996-08-13
申请号：US399215
申请日：1995-03-06
申请人： Noboru Yamada , Nobuo Akahira , Kenichi Nishiuchi , Kenichi Nagata , Eiji Ohno , Shigeaki Furukawa
发明人： Noboru Yamada , Nobuo Akahira , Kenichi Nishiuchi , Kenichi Nagata , Eiji Ohno , Shigeaki Furukawa
IPC分类号： G11B7/006 , G11B7/24 , B32B3/00
CPC分类号： G11B7/006 , G11B7/24 , Y10S428/913 , Y10S430/146 , Y10T428/21 , Y10T428/31678
摘要： Phase-change-type optical recording medium comprises a first dielectric layer, a recording layer made of a phase change material, a second dielectric layer and a reflecting layer wherein the thicknesses of the first and second dielectric layers are determined for a given thickness of the recording layer so that the following conditions are satisfied;.DELTA.A+.DELTA.R.gtoreq.20% and .DELTA.A.gtoreq.5%wherein.DELTA.A=A(cry)-A(amo),A(cry), A(amo): light absorption rates of the recording layer in the crystal state and amorphous state, respectively,.DELTA.R=R(cry)-R(amo),R(cry) and R(amo): light reflection rates of the recording lates in the crystal state and amorphous state, respectively.

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