公开(公告)号：US06806030B2

公开(公告)日：2004-10-19

申请号：US09810474

申请日：2001-03-19

申请人： Motoyasu Terao ,  Makoto Miyamoto ,  Yasushi Miyauchi ,  Keikichi Ando ,  Yumiko Anzai ,  Junko Ushiyama ,  Reiji Tamura ,  Yoshihiro Ikari ,  Tamotsu Fuchioka

发明人： Motoyasu Terao ,  Makoto Miyamoto ,  Yasushi Miyauchi ,  Keikichi Ando ,  Yumiko Anzai ,  Junko Ushiyama ,  Reiji Tamura ,  Yoshihiro Ikari ,  Tamotsu Fuchioka

IPC分类号： G11B724

CPC分类号： G11B7/257 ,  G11B7/2403 ,  G11B7/24067 ,  G11B7/243 ,  G11B7/259 ,  G11B7/26 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  Y10S430/146

摘要： In an optical disk for high density recording, for preventing the deformation of recording tracks caused by stress which may develop between the substrate and the recording stacked film formed thereon, a stress-compensation layer having a metal element such as Ti or Cr as a main component is provided. The stress-compensation layer undergoes contraction (tensile stress) to compensate for compression stress which develops in the stacked film during cooling after the thermal expansion of the substrate surface that occurs at the end of film formation. The stress-compensation layer has a pillar-like structure which, starting from the lower face, reaches the upper face of the film.

摘要翻译： 在用于高密度记录的光盘中，为了防止由于基板和形成在其上的记录层叠膜之间可能产生的应力引起的记录轨道的变形，具有诸如Ti或Cr的金属元素作为主要的应力补偿层 提供组件。 应力补偿层经受收缩（拉伸应力）以补偿在成膜结束时发生的基板表面的热膨胀之后在冷却期间在堆叠膜中产生的压缩应力。 应力补偿层具有从下表面开始到达膜的上表面的柱状结构。

公开(公告)号：US20110049454A1

公开(公告)日：2011-03-03

申请号：US12305890

申请日：2006-06-23

申请人： Motoyasu Terao ,  Yuichi Matsui ,  Tsuyoshi Koga ,  Nozomu Matsuzaki ,  Norikatsu Takaura ,  Yoshihisa Fujisaki ,  Kenzo Kurotsuchi ,  Takahiro Morikawa ,  Yoshitaka Sasago ,  Junko Ushiyama ,  Akemi Hirotsune

发明人： Motoyasu Terao ,  Yuichi Matsui ,  Tsuyoshi Koga ,  Nozomu Matsuzaki ,  Norikatsu Takaura ,  Yoshihisa Fujisaki ,  Kenzo Kurotsuchi ,  Takahiro Morikawa ,  Yoshitaka Sasago ,  Junko Ushiyama ,  Akemi Hirotsune

IPC分类号： H01L45/00

CPC分类号： H01L45/1675 ,  H01L27/2436 ,  H01L45/06 ,  H01L45/12 ,  H01L45/1233 ,  H01L45/144

摘要： In a phase-change memory, an interface layer is inserted between a chalcogenide material layer and a plug. The interface layer is arranged so as not to cover the entire interface of a plug-like electrode. When the plug is formed at an upper part than the chalcogenide layer, the degree of integration is increased. The interface layer is formed by carrying out sputtering using an oxide target, or, by forming a metal film by carrying out sputtering using a metal target followed by oxidizing the metal film in an oxidation atmosphere such as oxygen radical, oxygen plasma, etc.

摘要翻译： 在相变存储器中，界面层插入硫族化物材料层和插塞之间。 界面层被布置成不覆盖插塞状电极的整个界面。 当塞子形成在比硫族化物层的上部时，积分度增加。 通过使用氧化物靶进行溅射而形成界面层，或者通过使用金属靶进行溅射而形成金属膜，然后在氧自由基，氧等离子体等的氧化气氛中氧化金属膜。

公开(公告)号：US20050064334A1

公开(公告)日：2005-03-24

申请号：US10929425

申请日：2004-08-31

申请人： Akemi Hirotsune ,  Junko Ushiyama ,  Yumiko Anzai

发明人： Akemi Hirotsune ,  Junko Ushiyama ,  Yumiko Anzai

IPC分类号： B41M5/26 ,  C22C28/00 ,  G11B7/0045 ,  G11B7/24 ,  G11B7/243 ,  G11B7/254 ,  G11B7/257

CPC分类号： G11B7/257 ,  G11B7/00454 ,  G11B7/2403 ,  G11B7/24067 ,  G11B7/243 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

摘要： An information recording medium for high-density recording and reproduction that is low-cost and that has good rewrite characteristics. The information recording medium, in which recording is performed as an atomic arrangement is changed by optical irradiation, is capable of a number of rewrites. The information recording medium comprises a substrate on which a first protective layer with a thickness in the range from 18 to 65 nm, a recording film, a second protective layer, and a reflective layer are disposed in the mentioned order as seen from a light-incident side. Not less than 97 atomic % of the composition of the recording film is accounted for by Ge, Bi, and Te.

摘要翻译： 一种用于高密度记录和再现的信息记录介质，其低成本且具有良好的重写特性。 作为原子排列进行记录的信息记录介质通过光照射而改变，能够进行多次重写。 该信息记录介质包括一个基板，其上以从上述顺序看，其上具有厚度在18nm至65nm范围内的第一保护层，记录膜，第二保护层和反射层， 事件侧。 记录膜的组成不低于97原子％由Ge，Bi和Te占据。

公开(公告)号：US06775226B1

公开(公告)日：2004-08-10

申请号：US09941758

申请日：2001-08-30

申请人： Makoto Miyamoto ,  Junko Ushiyama ,  Keikichi Andoo

发明人： Makoto Miyamoto ,  Junko Ushiyama ,  Keikichi Andoo

IPC分类号： G11B724

CPC分类号： G11B7/266 ,  G11B7/2403 ,  G11B7/24067 ,  G11B7/243 ,  G11B7/2433 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/257 ,  G11B11/10584 ,  G11B2007/24304 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715

摘要： An information recording medium, which comprises three thin films of different compositions, comprising first and second interference layers and a first interface layer, stacked in this order from the laser beam incident side of a recording layer, the refractive index of the second interference layer being lower than that of any one of the first interference layer and the recording layer, the first interface layer being provided in contact with the recording layer and between the second interference layer and the recording layer, the second interference layer containing oxygen, and an oxygen barrier layer having a smaller oxygen content than that of the second interference layer being provided in contact with the second interference layer and between the second and first interface layers, can control diffusion of oxygen from the second interference layer into the recording layer and prevents deterioration of overwriting at the time of many runs of overwriting and lowering of storage life.

摘要翻译： 一种信息记录介质，包括三种不同组成的薄膜，包括从记录层的激光束入射侧依次堆叠的第一和第二干涉层和第一界面层，第二干涉层的折射率为 低于第一干涉层和记录层中的任一个的第一界面层，第一界面层设置成与记录层接触，并且在第二干涉层和记录层之间，第二干涉层含有氧和氧阻隔层 具有比与第二干涉层接触的第二干涉层的氧含量小的层与第二界面层和第一界面层之间的氧含量可以控制氧从第二干涉层向记录层的扩散，并防止覆盖的变坏 在许多运行中覆盖和降低存储空间的时候 fe。

公开(公告)号：US08089841B2

公开(公告)日：2012-01-03

申请号：US12153222

申请日：2008-05-15

申请人： Akemi Hirotsune ,  Junko Ushiyama ,  Hiroyuki Minemura ,  Takahiro Kurokawa ,  Harukazu Miyamoto

发明人： Akemi Hirotsune ,  Junko Ushiyama ,  Hiroyuki Minemura ,  Takahiro Kurokawa ,  Harukazu Miyamoto

IPC分类号： G11B7/00

CPC分类号： G11B7/005 ,  G11B7/24038 ,  G11B20/1217 ,  G11B20/22 ,  G11B2007/0013 ,  G11B2020/1298 ,  G11B2220/235 ,  G11B2220/2537

摘要： Regarding a signal recorded with a first frequency in a recording area on a specific first recording layer and a signal recorded with a second frequency different from the first frequency in a recording area on a second recording layer which might cause interlayer crosstalk in relation to the first recording layer, a reproducing signal measurement method for a multilayer optical recording medium having at least three recording layers includes reproducing the signal recorded in the recording area on the first recording layer, separating signals recorded respectively with the first and second frequencies, discriminating signal amplitude of the first frequency and a maximum value in signal amplitude of the second frequency, and calculating a signal amplitude ratio between them to measure interlayer crosstalk contained in the signal reproduced from the recording area on the first recording layer. Thus, the interlayer crosstalk quantity caused by unnecessary light can be measured quantitatively.

摘要翻译： 关于在特定第一记录层上的记录区域中以第一频率记录的信号和在第二记录层上的记录区域中以与第一频率不同的第二频率记录的信号，其可能引起与第一频率相关的层间串扰 记录层，用于具有至少三个记录层的多层光学记录介质的再现信号测量方法包括：再现记录在第一记录层上的记录区域中的信号，分离分别记录第一和第二频率的信号，区分信号幅度 第一频率和第二频率的信号幅度的最大值，并且计算它们之间的信号幅度比以测量从第一记录层上的记录区域再现的信号中包含的层间串扰。 因此，可以定量地测量由不必要的光引起的层间串扰量。

公开(公告)号：US20090040897A1

公开(公告)日：2009-02-12

申请号：US12153222

申请日：2008-05-15

申请人： Akemi Hirotsune ,  Junko Ushiyama ,  Hiroyuki Minemura ,  Takahiro Kurokawa ,  Harukazu Miyamoto

发明人： Akemi Hirotsune ,  Junko Ushiyama ,  Hiroyuki Minemura ,  Takahiro Kurokawa ,  Harukazu Miyamoto

IPC分类号： G11B20/18 ,  G11B7/24 ,  G11B11/00

CPC分类号： G11B7/005 ,  G11B7/24038 ,  G11B20/1217 ,  G11B20/22 ,  G11B2007/0013 ,  G11B2020/1298 ,  G11B2220/235 ,  G11B2220/2537

摘要： Regarding a signal recorded with a first frequency in a recording area on a specific first recording layer and a signal recorded with a second frequency different from the first frequency in a recording area on a second recording layer which might cause interlayer crosstalk in relation to the first recording layer, a reproducing signal measurement method for a multilayer optical recording medium having at least three recording layers includes reproducing the signal recorded in the recording area on the first recording layer, separating signals recorded respectively with the first and second frequencies, discriminating signal amplitude of the first frequency and a maximum value in signal amplitude of the second frequency, and calculating a signal amplitude ratio between them to measure interlayer crosstalk contained in the signal reproduced from the recording area on the first recording layer. Thus, the interlayer crosstalk quantity caused by unnecessary light can be measured quantitatively.

摘要翻译： 关于在特定第一记录层上的记录区域中以第一频率记录的信号和在第二记录层上的记录区域中以与第一频率不同的第二频率记录的信号，其可能引起与第一频率相关的层间串扰 记录层，用于具有至少三个记录层的多层光学记录介质的再现信号测量方法包括：再现记录在第一记录层上的记录区域中的信号，分离分别记录第一和第二频率的信号，区分信号幅度 第一频率和第二频率的信号幅度的最大值，并且计算它们之间的信号幅度比以测量从第一记录层上的记录区域再现的信号中包含的层间串扰。 因此，可以定量地测量由不必要的光引起的层间串扰量。

公开(公告)号：US07016282B2

公开(公告)日：2006-03-21

申请号：US09793633

申请日：2001-02-27

申请人： Junko Ushiyama ,  Hiroyuki Minemura ,  Makoto Miyamoto

发明人： Junko Ushiyama ,  Hiroyuki Minemura ,  Makoto Miyamoto

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/00454 ,  G11B7/006

摘要： Disclosed are an information recording method and an optical disk unit that maintain a good jitter even when a line velocity is variable in a mark edge system. In the case where an erasing power when erasing a record mark at a linear velocity v1 is Pe1(mW), a recording power when forming the record mark at the linear velocity v1 is Pw1(mW), an erasing power when erasing the record mark at a linear velocity v2 faster than v1 is Pe2(mW), and a power when forming the record mark at the linear velocity v2 is Pw2(mW), a relationship of Pw1/Pe1>Pw2/Pe2 is satisfied.

摘要翻译： 公开了一种信息记录方法和光盘单元，即使在标记边缘系统中的线速度可变时也能保持良好的抖动。 在以线速度v 1擦除记录标记时的擦除功率为Pe1（mW）的情况下，当以线速度v 1形成记录标记时的记录功率为Pw1（mW），擦除时的擦除功率 以比v1快的线速度v 2的记录标记为Pe2（mW），并且当以线速度v 2形成记录标记时的功率为Pw2（mW），满足Pw1 / Pe1> Pw2 / Pe2的关系 。

公开(公告)号：US5886969A

公开(公告)日：1999-03-23

申请号：US976011

申请日：1997-11-21

申请人： Takeshi Maeda ,  Hisataka Sugiyama ,  Hiroyuki Awano ,  Harukazu Miyamoto ,  Keikichi Andoo ,  Kouichirou Wakabayashi ,  Atsushi Saito ,  Takeshi Shimano ,  Junko Ushiyama ,  Osamu Komoda ,  Hideki Saga

发明人： Takeshi Maeda ,  Hisataka Sugiyama ,  Hiroyuki Awano ,  Harukazu Miyamoto ,  Keikichi Andoo ,  Kouichirou Wakabayashi ,  Atsushi Saito ,  Takeshi Shimano ,  Junko Ushiyama ,  Osamu Komoda ,  Hideki Saga

IPC分类号： G11B7/004 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/13 ,  G11B7/135 ,  G11B7/14 ,  G11B11/105 ,  G11B20/14 ,  G11B7/00

CPC分类号： B82Y10/00 ,  G11B11/10502 ,  G11B11/10545 ,  G11B11/10584 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/10287 ,  G11B20/1037 ,  G11B20/10509 ,  G11B7/004 ,  G11B7/00745 ,  G11B7/08529 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/0943 ,  G11B7/133 ,  G11B7/1365 ,  G11B20/1496 ,  G11B2020/10638 ,  G11B2020/10759 ,  G11B2220/2537 ,  G11B7/013 ,  G11B7/13 ,  G11B7/14 ,  G11B7/24088

摘要： An optical recording/reproducing method employs a recording laser beam having a first output and a first wavelength, and a reproducing laser beam having a second output lower than the first output and a second wavelength shorter than the first wavelength. A disk-like recording medium is irradiated with the recording and reproducing laser beams by use of an objective lens having an NA of about 0.55 so that a small mark equal to or smaller than about one fourth of a spot size optically defined from the wavelength of the recording laser beam and the NA of the objective lens is formed on the recording medium by a recording characteristic of the recording medium and a shielding plate provided in an optical system for irradiation with the laser beam. Two-dimensional recording is performed as a recording system to arrange marks at lattice points of a two-dimensional lattice which extend in a track direction and a track radius direction. The reproducing system detects a reproduction signal from the mark on the two-dimensional lattice point, and the reproduction signal from each mark is used to perform a signal processing, thereby detecting information.

摘要翻译： 光学记录/再现方法采用具有第一输出和第一波长的记录激光束，以及具有比第一输出低的第二输出和比第一波长短的第二波长的再现激光束。 通过使用NA为约0.55的物镜，用记录和再现激光束照射盘状记录介质，使得等于或小于光斑大小的四分之一的小的标记，其光学尺寸从 通过记录介质的记录特性和设置在用于照射激光束的光学系统中的屏蔽板，在记录介质上形成记录激光束和物镜的NA。 执行二维记录作为记录系统，以在轨道方向和轨道半径方向上延伸的二维网格的格点处布置标记。 再现系统检测来自二维格点上的标记的再现信号，并且使用来自每个标记的再现信号进行信号处理，从而检测信息。

公开(公告)号：US5835469A

公开(公告)日：1998-11-10

申请号：US553433

申请日：1995-11-20

申请人： Takeshi Maeda ,  Hisataka Sugiyama ,  Hiroyuki Awano ,  Harukazu Miyamoto ,  Keikichi Andoo ,  Kouichirou Wakabayashi ,  Atsushi Saito ,  Takeshi Shimano ,  Junko Ushiyama ,  Osamu Komoda ,  Hideki Saga

发明人： Takeshi Maeda ,  Hisataka Sugiyama ,  Hiroyuki Awano ,  Harukazu Miyamoto ,  Keikichi Andoo ,  Kouichirou Wakabayashi ,  Atsushi Saito ,  Takeshi Shimano ,  Junko Ushiyama ,  Osamu Komoda ,  Hideki Saga

IPC分类号： G11B7/004 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/13 ,  G11B7/135 ,  G11B7/14 ,  G11B11/105 ,  G11B20/14 ,  G11B7/00

CPC分类号： B82Y10/00 ,  G11B11/10502 ,  G11B11/10545 ,  G11B11/10584 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/10287 ,  G11B20/1037 ,  G11B20/10509 ,  G11B7/004 ,  G11B7/00745 ,  G11B7/08529 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/0943 ,  G11B7/133 ,  G11B7/1365 ,  G11B20/1496 ,  G11B2020/10638 ,  G11B2020/10759 ,  G11B2220/2537 ,  G11B7/013 ,  G11B7/13 ,  G11B7/14 ,  G11B7/24088

摘要： An optical recording/reproducing method employs a recording laser beam having a first output and a first wavelength, and a reproducing laser beam having a second output lower than the first output and a second wavelength shorter than the first wavelength. A disk-like recording medium is irradiated with the recording and reproducing laser beams by use of an objective lens having an NA of about 0.55 so that a small mark equal to or smaller than about one fourth of a spot size optically defined from the wavelength of the recording laser beam and the NA of the objective lens is formed on the recording medium by a recording characteristic of the recording medium and a shielding plate provided in an optical system for irradiation with the laser beam. Two-dimensional recording is performed as a recording system to arrange marks at lattice points of a two-dimensional lattice which extend in a track direction and a track radius direction. The reproducing system detects a reproduction signal from the mark on the two-dimensional lattice point, and the reproduction signal from each mark is used to perform a signal processing, thereby detecting information.

摘要翻译： PCT No.PCT / JP95 / 00542 Sec。 371日期：1995年11月20日 102（e）1995年11月20日日期PCT 1995年3月25日PCT PCT。 公开号WO95 / 26548 日期1995年10月5日光记录/再现方法采用具有第一输出和第一波长的记录激光束和具有比第一输出低的第二输出和比第一波长短的第二波长的再现激光束。 通过使用NA为约0.55的物镜，用记录和再现激光束照射盘状记录介质，使得等于或小于光斑大小的四分之一的小的标记，其光学尺寸从 通过记录介质的记录特性和设置在用于照射激光束的光学系统中的屏蔽板，在记录介质上形成记录激光束和物镜的NA。 执行二维记录作为记录系统，以在轨道方向和轨道半径方向上延伸的二维网格的格点处布置标记。 再现系统检测来自二维格点上的标记的再现信号，并且使用来自每个标记的再现信号进行信号处理，从而检测信息。

公开(公告)号：US20060087959A1

公开(公告)日：2006-04-27

申请号：US11250486

申请日：2005-10-17

申请人： Kazuyoshi Adachi ,  Osamu Ishizaki ,  Akemi Hirotsune ,  Junko Ushiyama

发明人： Kazuyoshi Adachi ,  Osamu Ishizaki ,  Akemi Hirotsune ,  Junko Ushiyama

IPC分类号： G11B7/24

CPC分类号： G11B7/24079 ,  G11B7/00718

摘要： An optical disk of a land-and-groove recording system capable of reducing a track pitch while suppressing the drop of an S/N ratio of reproduction signals is provided. The optical disk includes guide groove portions and space portions between the groove portions and is loaded to an optical disk recording/reproduction apparatus having a mechanism for removing or reducing leakage signals from adjacent tracks by using three or more light beam spots and signals are recorded to the groove portions and the space portions between the groove portions, wherein a wavelength λ of reproduction light irradiated from the optical disk recording/reproduction apparatus and a refractive index n of a cover layer on an incidence side of reproduction light or a substrate are from λ/12n to λ/6n.

摘要翻译： 提供了一种能够在抑制再现信号的S / N比的下降的同时减小轨道间距的纹间记录系统的光盘。 光盘包括引导槽部分和凹槽部分之间的空间部分，并被装载到具有通过使用三个或更多个光束点从相邻轨道移除或减少泄漏信号的机构的光盘记录/再现装置，并且将信号记录到 凹槽部分和凹槽部分之间的空间部分，其中从光盘记录/再现装置照射的再现光的波长λ和再现光或基底的入射侧的覆盖层的折射率n来自λ / 12n到λ/ 6n。