公开(公告)号：WO2003071532A1

公开(公告)日：2003-08-28

申请号：PCT/JP2002/001676

申请日：2002-02-25

Applicant: 富士通株式会社 ,  栗田 亮 ,  玉野井 健 ,  伊藤 祥遊 ,  三原 基伸

Inventor： 栗田 亮 ,  玉野井 健 ,  伊藤 祥遊 ,  三原 基伸

IPC: G11B11/105

CPC classification number: G11B11/10515 ,  G11B11/10584 ,  G11B11/10593

Abstract: A magneto-optical recording medium comprises a recording layer, an intermediate layer, and a reproduction layer stacked in this order and information recorded in the recording layer is transferred to the reproduction layer via the intermediate layer, thereby reproducing the information. The reproduction layer includes an upper reproduction layer, a binding layer, and a lower reproduction layer successively formed on the intermediate layer and magnetized information of the upper reproduction layer of a region whose temperature is increased to a predetermined temperature is transferred to the lower reproduction layer by the binding layer.

Abstract translation: 磁光记录介质包括按顺序堆叠的记录层，中间层和再现层，并且记录在记录层中的信息经由中间层传送到再现层，从而再现信息。 再现层包括在中间层上连续形成的上再现层，粘合层和下再现层，并且将温度升高到预定温度的区域的上再现层的磁化信息传送到下再现层 通过粘合层。

公开(公告)号：WO2004081931A1

公开(公告)日：2004-09-23

申请号：PCT/JP2003/002889

申请日：2003-03-12

Applicant: 富士通株式会社 ,  細川 哲夫

Inventor： 細川 哲夫

IPC: G11B11/105

CPC classification number: G11B11/10593 ,  G11B7/0079 ,  G11B7/266 ,  G11B11/10582 ,  G11B11/10584

Abstract: 光磁気記録媒体は、基板上に形成された光学位相ピット上に光記録膜を形成し、位相ピット信号とその上に形成した記録膜の信号の両方を光再生可能な光磁気記録媒体の製造方法に関し、前記記録膜を前記基板にスパッタ成膜する際のガス圧力を変更することにより、位相ピットの変調度を調整する。これにより、ＲＡＭ信号と位相ピット信号とのジッターを所望の１０％以下に抑えた光記憶媒体を安価に、均一に製造できる。

Abstract translation: 一种制造磁光记录介质的方法，其中光学记录膜形成在形成在基板中的光学相位凹坑上。 从磁光记录介质，光学地再现相位凹坑信号和记录在形成在光学记录膜上的记录膜中的信号。 通过在基板上的记录膜的溅射期间改变气体压力，调整相位坑的调制度。 这使得能够生产廉价且均匀的光记录介质，其中RAM信号和相位坑信号的抖动减小到小于期望的信号的10％。

公开(公告)号：WO2004008441A3

公开(公告)日：2004-04-22

申请号：PCT/IB0302853

申请日：2003-06-25

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  VAN SOMEREN BOB ,  ZIJP FERRY ,  VAN KESTEREN HANS W ,  VAN DER MARK MARTINUS B ,  VAN DEN HEUVEL CORNELIUS A ,  VERSCHUREN COEN A

Inventor： VAN SOMEREN BOB ,  ZIJP FERRY ,  VAN KESTEREN HANS W ,  VAN DER MARK MARTINUS B ,  VAN DEN HEUVEL CORNELIUS A ,  VERSCHUREN COEN A

IPC: G11B7/12 ,  G11B7/24 ,  G11B7/24059 ,  G11B7/243 ,  G11B7/254 ,  G11B7/2548 ,  G11B7/257 ,  G11B7/258 ,  G11B7/2585 ,  G11B11/105

CPC classification number: G11B7/122 ,  G11B7/24059 ,  G11B7/2548 ,  G11B7/257 ,  G11B7/2585 ,  G11B11/10534 ,  G11B11/10554 ,  G11B11/1058 ,  G11B11/10584 ,  G11B11/10593 ,  G11B2007/24306 ,  G11B2007/25411 ,  G11B2007/25417 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716

Abstract: An optical recording and reading system for use with an optical data storage medium (5) is described. The system comprises the medium (5) having a recording stack (9) and a cover stack (7) that is transparent to a focused radiation beam (1) which has a wavelength lambda in air. The cover stack (7) has a thickness dT. The recording stack (9) and cover stack (7) are formed sequentially on a substrate (8). An optical head (3), with an objective (2) having a numerical aperture NA and from which objective (2) the focused radiation beam (1) emanates during recording, is adapted for recording/reading at a free working distance dF of smaller than 50 µm from an outermost surface of said medium (5) and arranged on the cover stack (7) side of said optical data storage medium (5). When dT is smaller than 50

Abstract translation: 描述了一种用于光学数据存储介质（5）的光学记录和读取系统。 该系统包括具有记录堆叠（9）的介质（5）和对于在空气中具有波长λ的聚焦辐射束（1）是透明的盖堆叠（7）。 盖板（7）具有厚度dT。 记录堆叠（9）和盖层叠（7）依次形成在基板（8）上。 具有数字孔径NA的物镜（2）和在记录期间发射的聚焦辐射束（1）的物镜（2））的光学头（3）适于在较小的自由工作距离dF下进行记录/读取 比所述介质（5）的最外表面超过50μm，并且布置在所述光学数据存储介质（5）的盖板（7）侧。 当dT小于50 <实现可靠的记录和读取时，特别是因为防止了聚焦伺服问题。

公开(公告)号：WO2004008441A2

公开(公告)日：2004-01-22

申请号：PCT/IB2003/002853

申请日：2003-06-25

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  VAN SOMEREN, Bob ,  ZIJP, Ferry ,  VAN KESTEREN, Hans, W. ,  VAN DER MARK, Martinus, B. ,  VAN DEN HEUVEL, Cornelius, A. ,  VERSCHUREN, Coen, A.

Inventor： VAN SOMEREN, Bob ,  ZIJP, Ferry ,  VAN KESTEREN, Hans, W. ,  VAN DER MARK, Martinus, B. ,  VAN DEN HEUVEL, Cornelius, A. ,  VERSCHUREN, Coen, A.

IPC: G11B7/00

CPC classification number: G11B7/122 ,  G11B7/24059 ,  G11B7/2548 ,  G11B7/257 ,  G11B7/2585 ,  G11B11/10534 ,  G11B11/10554 ,  G11B11/1058 ,  G11B11/10584 ,  G11B11/10593 ,  G11B2007/24306 ,  G11B2007/25411 ,  G11B2007/25417 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716

Abstract: An optical recording and reading system for use with an optical data storage medium (5) is described. The system comprises the medium (5) having a recording stack (9) and a cover stack (7) that is transparent to a focused radiation beam (1) which has a wavelength λ in air. The cover stack (7) has a thickness dT. The recording stack (9) and cover stack (7) are formed sequentially on a substrate (8). An optical head (3), with an objective (2) having a numerical aperture NA and from which objective (2) the focused radiation beam (1) emanates during recording, is adapted for recording/reading at a free working distance dF of smaller than 50 µm from an outermost surface of said medium (5) and arranged on the cover stack (7) side of said optical data storage medium (5). When dT is smaller than 50? reliable recording and reading is achieved, especially because focus servo problems are prevented.

Abstract translation: 描述了用于光学数据存储介质（5）的光学记录和读取系统。 该系统包括具有记录叠层（9）和覆盖叠层（7）的介质（5），覆盖叠层（7）对于在空气中具有波长λ的聚焦辐射束（1）是透明的。 覆盖叠层（7）具有厚度dT。 记录叠层（9）和覆盖叠层（7）顺序地形成在基板（8）上。 具有数值孔径NA的物镜（2）和记录期间聚焦的辐射束（1）发射的物镜（2）的光学头（3）适于以较小的自由工作距离dF进行记录/读取 距离所述介质（5）的最外表面50μm，并且布置在所述光学数据存储介质（5）的盖堆叠（7）侧。 当dT小于50？ 实现可靠的记录和读取，尤其是因为防止了聚焦伺服问题。

公开(公告)号：WO99039342A1

公开(公告)日：1999-08-05

申请号：PCT/JP1999/000402

申请日：1999-01-29

IPC: G11B11/105 ,  G11B11/10

CPC classification number: G11B11/10593 ,  G11B11/10515 ,  Y10T428/24942

Abstract: A magneto-optic recording medium having a recording layer which is a magnetic multilayer comprising at least three magnetic layers. Ahead of the reproducing light spot in the travel direction, the magnetic wall of the magnetic layer illuminated by the reproducing light moves toward the center of the light spot to expand magnetic domains; behind the reproducing light spot in the travel direction, the movement of the magnetic wall toward the center of the light spot is suppressed. To suppress the movement, for example, a magnetic layer having specific magnetic characteristics may be formed between a displacement layer and a switch layer.

Abstract translation: 本发明涉及包括一种由包括至少三个磁性层的多个磁性层的记录层的磁光记录介质。 再现的光点之前，在运动方向上，通过光照射再现的磁性层的磁壁向光点，扩大的磁区的中心移动。 再现的该相同的光点的后面，还处于运动的方向，朝向的发光点的中心的磁畴壁的移动会被删除。 移除这一运动，例如，可以在位移层和一个交换层之间形成具有特定的磁特性的磁性层。

公开(公告)号：WO1998009283A1

公开(公告)日：1998-03-05

申请号：PCT/JP1997002984

申请日：1997-08-27

Applicant: HITACHI MAXELL, LTD. ,  SHIMAZAKI, Katsusuke ,  IMAI, Susumu ,  OHTA, Norio ,  AWANO, Hiroyuki ,  YOSHIHIRO, Masafumi ,  WATANABE, Hitoshi ,  TAKAO, Hiroki

Inventor： HITACHI MAXELL, LTD.

IPC: G11B11/10

CPC classification number: G11B11/10595 ,  G11B11/10513 ,  G11B11/10515 ,  G11B11/10528 ,  G11B11/10584 ,  G11B11/10593 ,  G11B20/00086 ,  G11B20/1217 ,  G11B2020/1275 ,  G11B2020/1298 ,  G11B2220/2525

Abstract: A magnetic field H(x) or a reproducing beam L(x) of light whose intensity pattern is different is applied to the recording position of a magneto-optical recording medium, and different information corresponding to the patterns is read out of the same recording position. The function H(x) or L(x) is a password for obtaining the information. Only a person who knows the function can access the specific information recorded on the magneto-optical recording medium. The function H(x) or L(x) is a function such that the magnetic field intensity or the beam intensity is modulated with respect to the recording position (x) in such a manner that the information can be reproduced while magnetic domains are picked up from contiguous domains in the recording region at specific intervals. In addition to the security application, the information can be reproduced n times while a reproducing beam PL/PH, which is subjected to power modulation so as to apply a high power PH with a period n times the recording clock, is being projected to a specific magneto-optical recording medium such that magnetic domain expansion reproduction is possible, thereby improving the reproducing C/N significantly.

Abstract translation: 将强度图案不同的光的磁场H（x）或再现光束L（x）施加到磁光记录介质的记录位置，并且从同一记录中读出与图案对应的不同信息 位置。 函数H（x）或L（x）是用于获取信息的密码。 只有知道该功能的人才可以访问记录在磁光记录介质上的特定信息。 函数H（x）或L（x）是这样的功能，使得磁场强度或光束强度相对于记录位置（x）被调制，使得可以在拾取磁畴时再现信息 从特定间隔的记录区域中的连续域开始。 除了安全应用之外，可以再次n次地再现信息，而将经过功率调制以便施加具有n倍于记录时钟的周期的高功率PH的再现光束PL / PH投影到 特定的磁光记录介质，使得磁畴扩展再现成为可能，从而显着提高再现C / N。

公开(公告)号：WO2004027759A2

公开(公告)日：2004-04-01

申请号：PCT/IB2003/003626

申请日：2003-08-08

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  PHILLIPS, Gavin, N.

Inventor： PHILLIPS, Gavin, N.

IPC: G11B

CPC classification number: G11B11/10584 ,  G11B11/10586 ,  G11B11/10593

Abstract: The invention relates to a magneto-optical storage medium (200) and specifically a domain expansion storage medium. The medium (200) comprises a magnetic storage layer (107) for long term information storage and a thereto magnetically coupled magnetic reproduction or read-out layer (111), wherein an enhanced magnetic domain may be generated during read out. The magnetic layers (107,111) are separated by a non-metallic or metallic, non-magnetic or magnetic layer (109) and at least one metal layer (201, 203), such as Palladium or Platinum, is located adjacent to the magnetic reproduction layer (111). Preferably this metal layer (201, 203) is located on each side of the magnetic reproduction layer (111). The metal layer(s) (201, 203) provides increased heat dissipation and Kerr effect thereby permitting increased data density of the magneto-optical storage medium (200).

Abstract translation: 本发明涉及磁光存储介质（200），具体地涉及域扩展存储介质。 介质（200）包括用于长期信息存储的磁存储层（107）和磁耦合磁性再现或读出层（111），其中在读出期间可能产生增强的磁畴。 磁性层（107,111）由非金属或金属，非磁性或磁性层（109）分开，并且至少一个金属层（例如钯或铂）等位于邻近磁性再现层 层（111）。 优选地，该金属层（201,203）位于磁性再生层（111）的每一侧。 金属层（201,203）提供增加的散热和克尔效应，从而允许增加磁光存储介质（200）的数据密度。

公开(公告)号：WO2003036633A1

公开(公告)日：2003-05-01

申请号：PCT/JP2002/011038

申请日：2002-10-24

Applicant: 松下電器産業株式会社 ,  村上 元良 ,  尾留川 正博

Inventor： 村上 元良 ,  尾留川 正博

IPC: G11B7/26

CPC classification number: G11B11/10582 ,  C23C14/35 ,  C23C14/564 ,  C23C14/568 ,  G11B7/26 ,  G11B7/266 ,  G11B11/10589 ,  G11B11/10593 ,  H01J37/3405

Abstract: A method of forming a film on an optical disk comprising (a) the step of carrying an optical disk substrate into a vacuum chamber, (b) the step of disposing the optical disk substrate to face a target provided in the vacuum chamber and including a film−forming material, and (c) the step of forming a specified film on a fixed or rotating−on−axis or revolving optical disk substrate by a sputtering method using the target, wherein a relation a > 2D is satisfied where a is a target radius and D the radius of the optical disk substrate, thereby forming a higher−density−compatible, homogeneous film on an optical disk.

Abstract translation: 一种在光盘上形成膜的方法，包括：（a）将光盘基板搬入真空室的步骤，（b）将光盘基板设置在与设在真空室中的目标相对的步骤， 成膜材料，以及（c）通过使用该靶的溅射法在固定或旋转轴上或旋转光盘基板上形成规定膜的步骤，其中满足关系a> 2D，其中a为 目标半径和D是光盘基板的半径，从而在光盘上形成更高密度的均匀的膜。

公开(公告)号：WO02035540A1

公开(公告)日：2002-05-02

申请号：PCT/JP2001/009412

申请日：2001-10-25

IPC: G11B11/105

CPC classification number: G11B11/10593 ,  G11B11/10515

Abstract: A magnetooptic recording medium capable of being resistant to cross talk and realizing a high-density recording enabling a small-pitch application. The magnetooptic recording medium comprises a magnetic 4-layer structure, a mask layer, a reproducing layer, an intermediate layer and a recording layer, characterized in that the reproducing layer and the recordimg layer have axes of easy magnetization in a laminate direction at room temperature, the mask layer and the intermediate layer have axes of easy magnetization in an in-plane direction at room temperature, relation, Tc 3

Abstract translation: 一种磁光记录介质，能够抵抗串扰并实现高密度记录，从而实现小间距应用。 磁光记录介质包括磁性4层结构，掩模层，再现层，中间层和记录层，其特征在于，再现层和记录层在室温下具有在层叠方向上容易磁化的轴 掩模层和中间层在室温下具有在面内方向上容易磁化的轴，当相对于Tc 3

公开(公告)号：WO9963530A9

公开(公告)日：2000-03-30

申请号：PCT/US9912231

申请日：1999-06-02

Applicant: SEAGATE TECHNOLOGY

Inventor： HUBER WILLIAM D

IPC: G11B7/004 ,  G11B11/105 ,  G11B20/10 ,  G11B7/00 ,  G11B11/10

CPC classification number: G11B11/10515 ,  G11B7/004 ,  G11B11/10508 ,  G11B11/10591 ,  G11B11/10593 ,  G11B20/10

Abstract: A magneto-optical recording system achieves improved bandwidth efficiency using a modulated recording signal, recording channel linearization, and a MO medium having a low inter-granular exchange coupling and abrupt flux transitions.

Abstract translation: 磁光记录系统使用调制记录信号，记录信道线性化和具有低粒间交换耦合和突变通量跃迁的MO介质来实现改进的带宽效率。