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1. 发明授权

US5109373A Optical information recording method 失效
标题翻译：光信息记录方法
公开(公告)号：US5109373A
公开(公告)日：1992-04-28
申请号：US546906
申请日：1990-07-02
申请人： Eiji Ohno , Kenichi Nishiuchi , Noboru Yamada , Kenzou Ishibashi , Kunio Kimura , Nobuo Akahira
发明人： Eiji Ohno , Kenichi Nishiuchi , Noboru Yamada , Kenzou Ishibashi , Kunio Kimura , Nobuo Akahira
IPC分类号： G11B7/0045 , G11B7/006 , G11B7/125 , G11B20/10
CPC分类号： G11B7/0062 , G11B20/10009 , G11B7/0045 , G11B7/006 , G11B7/126
摘要： A recording apparatus overwrites an input signal having pulse duration periods and pulse spacing periods to an optical disk by irradiation of a laser beam to form recording marks corresponding to the pulse duration periods. The apparatus includes a detector for detecting a leading edge of the pulse duration period and for producing a start signal thereupon, another detector for detecting a trailing edge of the pulse duration period and for producing a stop signal thereupon, a pattern setting circuit for setting a predetermined basic pattern, and a pattern generator for generating the basic pattern from its beginning in response to the start signal and for terminating the generation of the basic pattern in response to the stop signal. The apparatus further includes a circuit for forming a modulated signal using a full or portion of the basic pattern produced from the pattern generator. The laser output is produced in according with the modulated signals.

2. 发明授权

US5150351A Optical information recording apparatus for recording an input signal having variable width pulse duration and pulse spacing periods 失效
标题翻译：光信息记录装置，用于记录具有可变宽度脉冲持续时间和脉冲间隔周期的输入信号
公开(公告)号：US5150351A
公开(公告)日：1992-09-22
申请号：US712031
申请日：1991-06-07
申请人： Eiji Ohno , Kenichi Nishiuchi , Noboru Yamada , Kenzou Ishibashi , Kunio Kimura , Nobuo Akahira
发明人： Eiji Ohno , Kenichi Nishiuchi , Noboru Yamada , Kenzou Ishibashi , Kunio Kimura , Nobuo Akahira
IPC分类号： G11B7/006 , G11B20/10
CPC分类号： G11B7/006 , G11B20/10009
摘要： A recording apparatus overwrites an input signal having pulse duration periods and pulse spacing periods to an optical disk by irradiation of a laser beam to form recording marks corresponding to the pulse duration periods. The apparatus includes a detector for detecting a leading edge of the pulse duration period and for producing a start signal thereupon, another detector for detecting a trailing edge of the pulse duration period and for producing a stop signal thereupon, a pattern setting circuit for setting a predetermined basic pattern, and a pattern generator for generating the basic pattern from its beginning in response to the start signal and for terminating the generation of the basic pattern in response to the stop signal. The apparatus further includes a circuit for forming a modulated signal using a full or portion of the basic pattern produced from the pattern generator. The laser output is produced in accordance with the modulated signal.
摘要翻译：记录装置通过照射激光束将具有脉冲宽度周期和脉冲间隔周期的输入信号重写成光盘，以形成对应于脉冲持续时间段的记录标记。该装置包括检测器，用于检测脉冲持续时间段的前沿并产生一个起始信号，另一个检测器，用于检测脉冲持续时间段的后沿并产生一个停止信号，一个模式设置电路，用于设置一个预定的基本模式，以及用于响应于起始信号从其开始产生基本模式并响应于停止信号终止生成基本模式的模式发生器。该装置还包括用于使用从图案发生器产生的全部或部分基本图案形成调制信号的电路。根据调制信号产生激光输出。

3. 发明授权

US4587209A Optical information recording member comprising Au, TeO.sub.2 and Te 失效
标题翻译：包含Au，TeO 2和Te的光学信息记录部件
公开(公告)号：US4587209A
公开(公告)日：1986-05-06
申请号：US715395
申请日：1985-03-25
申请人： Eiji Ohno , Kunio Kimura , Noboru Yamada , Nobuo Akahira
发明人： Eiji Ohno , Kunio Kimura , Noboru Yamada , Nobuo Akahira
IPC分类号： G03C1/72 , G11B7/243 , G11B7/257 , G03C1/94
CPC分类号： G11B7/257 , G11B7/243 , G11B2007/24308 , G11B2007/24316 , G11B2007/2432 , G11B2007/25706 , G11B2007/25708 , Y10S430/146 , Y10S430/165
摘要： Disclosed is an optical information recording member which permits recording of optical information at a high speed and high density by means of energy of light or heat, as well as a high speed reproduction of the recorded information. The optical information recording member has a thin film formed on a substrate which thin film is made of TeOx constituted by a mixture of Te and TeO.sub.2 with a small amount of Au being added such that the contents of Te, O and Au in the thin film falls within a predetermined region limited in terms of atomic percent. The optical information recording member of the invention having the thin film of Te-O-Au system permits the information to be recorded in quite a short time thus allowing quite high speed of recording and reproduction as compared with the conventional recording film of TeOx system. The optical information recording member of the invention also brings about a higher recording sensitivity and a higher C/N ratio. Further, the optical information recording member may have a thermal diffusion layer of a metal having a higher heat conductivity than the thin film, formed on at least one side of the recording thin film, thereby making uniform and stabilizing the recording bits. In consequence, undesirable distortion of the recording bits is prevented even when an excessively large recording power is irradiated, thus affording a wider adaptability of the optical information recording member.
摘要翻译：公开了一种光信息记录部件，其允许通过光或热能量以高速和高密度记录光信息，以及记录信息的高速再现。光学信息记录部件具有形成在基板上的薄膜，该薄膜由Te和TeO 2的混合物构成的TeOx和少量的Au相加，使得薄膜中的Te，O和Au的含量落在受原子百分比限制的预定区域内。具有Te-O-Au系统薄膜的本发明的光学信息记录部件允许在相当短的时间内记录信息，从而与TeOx系统的常规记录膜相比，可以实现相当高的记录和再现速度。本发明的光信息记录部件也具有较高的记录灵敏度和较高的C / N比。此外，光学信息记录部件可以具有形成在记录薄膜的至少一侧上的具有比薄膜更高的导热性的金属的热扩散层，从而使记录位均匀稳定。因此，即使当照射过大的记录功率时也防止了记录位的不期望的失真，从而提供了光信息记录部件的更宽的适应性。

4. 发明授权

US6033535A Optical information recording disk and method for manufacturing the same 失效
标题翻译：光信息记录盘及其制造方法
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
IPC分类号： C23C14/34 , C23C14/35 , G11B7/243 , G11B7/26
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。

5. 发明授权

US5768233A Data storage apparatus for recording and reproducing information on a recording medium by rotating the medium at different zone recording angular velocities and a reading angular velocity during a stand-by mode 失效
标题翻译：数据存储装置，用于通过以不同的区域记录角速度和待机模式下的读取角速度旋转介质来在记录介质上记录和再现信息
公开(公告)号：US5768233A
公开(公告)日：1998-06-16
申请号：US778950
申请日：1997-01-06
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。

6. 发明授权

US5424106A Optical information recording medium and method of designing its structure 失效
标题翻译：光信息记录介质及其结构设计方法
公开(公告)号：US5424106A
公开(公告)日：1995-06-13
申请号：US45876
申请日：1993-04-15
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.
摘要翻译：相变型光学记录介质包括第一介质层，由相变材料制成的记录层，第二介电层和反射层，其中确定第一和第二介电层的厚度为给定的厚度记录层，以满足以下条件; DELTA A + DELTA R> / = 20％和DELTA A> / = 5％其中DELTA A = A（cry）-A（amo），A（cry），A（amo）：记录层的光吸收率晶体状态和非晶态分别为：晶体状态和非晶态的记录层的光反射率分别为：DELTA R = R（cry）-R（amo），R（cry）和R（amo）

7. 发明授权

US4908835A Information recording medium 失效
标题翻译：信息记录介质
公开(公告)号：US4908835A
公开(公告)日：1990-03-13
申请号：US373666
申请日：1989-06-29
申请人： Kenichi Nishiuchi , Nobuo Akahira , Noboru Yamada , Eiji Ohno
发明人： Kenichi Nishiuchi , Nobuo Akahira , Noboru Yamada , Eiji Ohno
IPC分类号： G11B7/24 , G11B7/0037 , G11B7/0045 , G11B7/241 , G11B7/26 , G11C13/04
CPC分类号： G11B7/2433 , G11B7/00375 , G11B7/00455 , G11B7/241 , G11B2007/24308 , G11B2007/2431 , G11B2007/24312 , G11B2007/24316 , G11B2007/2432 , G11B7/2533 , G11B7/2535
摘要： A method of measuring reliability of an information recording medium which comprises an information recording thin film. The method comprises the steps of heating said film at least once to its melting point, rapidly cooling said film after heating, measuring a transition temperature of said film after cooling, and comparing said transition temperature with a predetermined reference temperature.
摘要翻译：一种测量包括信息记录薄膜的信息记录介质的可靠性的方法。该方法包括以下步骤：将所述膜加热至少一次至其熔点，加热后快速冷却所述膜，测量冷却后所述膜的转变温度，并将所述转变温度与预定的参考温度进行比较。

8. 发明授权

US5527661A Optical information recording medium 失效
标题翻译：光信息记录介质
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
IPC分类号： G11B7/005 , G11B7/24 , G11B7/243
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。

9. 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）。

10. 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。

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