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1. 发明专利

JP2004095073A Magneto-optical recording medium and its manufacturing method 审中-公开
公开(公告)号：JP2004095073A
公开(公告)日：2004-03-25
申请号：JP2002255284
申请日：2002-08-30
申请人： Sony Corp , ソニー株式会社
发明人： MIYATA KAZUTOMO , OTA TERUYUKI , WATANABE MAKOTO
IPC分类号： G11B11/105
摘要： PROBLEM TO BE SOLVED: To provide a magneto-optical recording medium which can be manufactured in a shorter time and in which perpendicular magnetic anisotropy and MsHc product can be enlarged, and its manufacturing method.
SOLUTION: This medium is a magneto-optical recording medium 10 in which at least a dielectric layer 2 and a magnetic layer 11 consisting of a perpendicular magnetic recording film are formed on a light transmittable substrate 1, the magnetic layer 11 is formed by sputtering using Kr gas as process gas.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004234763A Magneto-optical recording medium and signal reproducing method 有权
公开(公告)号：JP2004234763A
公开(公告)日：2004-08-19
申请号：JP2003022643
申请日：2003-01-30
申请人： Sony Corp , ソニー株式会社
发明人： SAKAMOTO TETSUHIRO , MIYATA KAZUTOMO , OTA TERUYUKI , WATANABE MAKOTO , TANAKA YASUTO , FUJITA GORO , MIKI TAKESHI , FUJIIE KAZUHIKO
IPC分类号： G11B11/105 , G11B11/00
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10593
摘要： PROBLEM TO BE SOLVED: To facilitate a design of a magnetic layer by avoiding occurrence of ghost signals and improving drop-out at the time of reproduction of a magneto-optical recording medium by a domain wall displacement detection system.
SOLUTION: This medium is provided, from the incident side of a reproducing laser beam, with a first magnetic layer 11 constituting a reproduction layer, a second magnetic layer 12 constituting a control layer, a third magnetic layer 13 constituting an interruption layer and a fourth magnetic layer 14 constituting a recording layer, and relations of Tc1>Tc3>Tc2, Tc4>Tc3 are satisfied among respective Curie temperatures of the layers and at the same time, a relation of Ku3>Ku2 is satisfied between magnetic anisotropy of layers 13 and 12. Moreover, magnetic domain walls of the first magnetic layer 11 are displaced toward the peak part of the temperature-rise part of a light spot with irradiation of a reproducing laser beam and a recording magnetic domain is expanded and also the displacing of the magnetic domain walls is suppressed at the backward of a scanning direction. The second and third magnetic layers control the magnetic exchange coupling of the first magnetic layer and the fourth magnetic layer.
COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2007004918A Optical recording medium and its initialization method 有权
标题翻译：光学记录介质及其初始化方法
公开(公告)号：JP2007004918A
公开(公告)日：2007-01-11
申请号：JP2005185076
申请日：2005-06-24
申请人： Sony Corp , ソニー株式会社
发明人： OTA TERUYUKI , WATANABE MAKOTO
IPC分类号： G11B7/007 , G11B7/0055 , G11B7/085 , G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide an optical recording medium which can be stably initialized in the optical recording medium wherein multilayered information recording layers are formed and to provide its initialization method. SOLUTION: A layer L0 2 has a region where the layer L0 2 does not overlap with a layer L1 4. The layer L0 2 concretely has a distance r0 from the center of the optical recording medium. A circular shape having a radius r0 is formed on the inner peripheral side of the layer L0 2. The layer L1 4 has a distance r1 from the center of the optical recording medium. A circular shape having a radius r1 is formed on the inner peripheral side of the layer L1 4. The layer L0 2 and the layer L1 4 are so constituted that a relation r0 COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在其中形成多层信息记录层的光记录介质中稳定地初始化的光记录介质，并提供其初始化方法。解决方案：层L0 2具有层L0 2与层L1 4不重叠的区域。层L0 2具体地具有距离光记录介质的中心的距离r0。在层L0 2的内周侧形成具有半径r0的圆形。层L1 4与光记录介质的中心具有距离r1。在层L1 4的内周侧形成半径为r1的圆形。层L0 2和层L1 4构成为满足关系r0

4. 发明专利

JP2010186516A Optical recording medium 有权
标题翻译：光学记录介质
公开(公告)号：JP2010186516A
公开(公告)日：2010-08-26
申请号：JP2009030384
申请日：2009-02-12
申请人： Sony Corp , ソニー株式会社
发明人： OTA TERUYUKI , WATANABE MAKOTO , FUKUSHIMA YOSHIHITO
IPC分类号： G11B7/24 , G11B7/243 , G11B7/254 , G11B7/257
CPC分类号： G11B7/2578 , G11B7/00454 , G11B7/24038 , G11B7/252 , G11B7/2531 , G11B7/2538 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , Y10T428/21
摘要： PROBLEM TO BE SOLVED: To provide an optical recording medium which is excellent in durability in repetition of recording. SOLUTION: The optical recording medium includes a substrate, and an information recording layer formed on the substrate. The information signal is recorded and reproduced to and from the information recording layer by irradiation with light. The information recording layer includes a reflective layer, a dielectric layer formed on the reflective layer, and a recording layer formed on the dielectric layer. The dielectric layer includes a first dielectric layer and a second dielectric layer. The thermal conductivity of the second dielectric layer located on the reflective layer side is set to be higher than that of the first dielectric layer located on the recording layer side. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种在重复记录时耐久性优异的光记录介质。解决方案：光记录介质包括基板和形成在基板上的信息记录层。信息信号通过照射被记录和再现到信息记录层。信息记录层包括反射层，形成在反射层上的电介质层和形成在电介质层上的记录层。电介质层包括第一电介质层和第二电介质层。位于反射层一侧的第二电介质层的热导率被设定为高于位于记录层侧的第一电介质层的热导率。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2004326859A Magneto-optical disk and its reproducing method 审中-公开
公开(公告)号：JP2004326859A
公开(公告)日：2004-11-18
申请号：JP2003117045
申请日：2003-04-22
申请人： Sony Corp , ソニー株式会社
发明人： WATANABE MAKOTO , MIYATA KAZUTOMO , OTA TERUYUKI , HIDA MINORU
IPC分类号： G11B20/10 , G11B7/007 , G11B7/30 , G11B11/105 , G11B20/12
摘要： PROBLEM TO BE SOLVED: To provide a magneto-optical disk in which the recording density can be made larger and the capacity can be made larger although its diameter is small and illegal copy can be prevented effectively, and its reproducing method. SOLUTION: This disk is a magneto-optical disk which has a recording layer consisting of a magnetic film on the substrate and in which a track is formed in a concentric circular shape or a spiral shape in the main recording region 2 and the sub-recording region 3 of the recording layer. The disk has: a first recording region which is formed in the main recording region and in which an information signal is recorded; a second recording region formed in the sub-recording region; a first wobbling groove Gw which is formed in the main recording region and in which the address information of the information signal is recorded in a modulation signal of reflectance along the track; a third recording region which is formed on the second recording region in the sub-recording region and in which a disk discrimination information signal is recorded; and a fourth recording region Gw which is formed at one part of the track and in which the address information of the disk discrimination information signal is recorded in the modulation signal of reflectance. COPYRIGHT: (C)2005,JPO&NCIPI

6. 发明专利

JP2004273010A Method for manufacturing magneto-optical recording medium and sputtering system 审中-公开
公开(公告)号：JP2004273010A
公开(公告)日：2004-09-30
申请号：JP2003061540
申请日：2003-03-07
申请人： Sony Corp , ソニー株式会社
发明人： OTA TERUYUKI , MIYATA KAZUTOMO , WATANABE MAKOTO
IPC分类号： C23C14/06 , C23C14/34 , G11B11/105
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a magneto-optical recording medium capable of manufacturing the magneto-optical recording medium of high recording density using magnetic super high resolution technology with high mass productivity, and further provide a sputtering system.
SOLUTION: The method for manufacturing the magneto-optical recording medium having a first process of disposing a plurality of targets 7a and 7b composed of materials different from each other and a sheet of substrate 4 opposite to each other and a second process of forming a magneto-optical recording layer composed of a magnetic material on the substrate by rotating the substrate without moving the substrate and performing sputtering while independently applying voltages to the plurality of targets and the sputtering system 1 used for the same are provided.
COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2010267359A Optical recording medium and method for manufacturing the same 审中-公开
标题翻译：光学记录介质及其制造方法
公开(公告)号：JP2010267359A
公开(公告)日：2010-11-25
申请号：JP2009120427
申请日：2009-05-18
申请人： Sony Corp , ソニー株式会社
发明人： SUWABE MASAJI , NAKAYAMA HIROSHI , IGARI TAKAHIRO , OTA TERUYUKI
IPC分类号： G11B7/24 , B41M5/26 , G11B7/243 , G11B7/253 , G11B7/254 , G11B7/257 , G11B7/26
CPC分类号： G11B7/24053 , G11B7/26 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25715 , Y10T428/21
摘要： PROBLEM TO BE SOLVED: To provide an optical recording medium capable of enhancing the durability against repeated recording without causing lowering of the productivity, and a method for manufacturing the same. SOLUTION: The optical recording medium includes: a substrate having a first principal surface and a second principal surface; one or plural information signal layers formed on the first principal surface of the substrate for undergoing recording or reproduction of information signals upon irradiation with light; and a barrier layer formed on the second principal surface of the substrate for suppressing the gas release from the second principal surface of the substrate, wherein an area of a region exposing from the barrier layer of the second principal surface of the substrate is not more than 688 mm 2 . COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供能够提高耐反复记录的耐久性而不降低生产率的光记录介质及其制造方法。光记录介质包括：具有第一主表面和第二主表面的基底; 形成在基板的第一主表面上的一个或多个信息信号层，用于在照射光时进行信息信号的记录或再现; 以及阻挡层，形成在所述基板的所述第二主面上，用于抑制从所述基板的所述第二主面的气体释放，其中，从所述基板的所述第二主面的所述阻挡层露出的区域的面积不大于 688 mm 2 。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2005194589A Vacuum system, and control method therefor 审中-公开
标题翻译：真空系统及其控制方法
公开(公告)号：JP2005194589A
公开(公告)日：2005-07-21
申请号：JP2004003086
申请日：2004-01-08
申请人： Sony Corp , ソニー株式会社
发明人： MIYATA KAZUTOMO , OTA TERUYUKI
IPC分类号： B01J3/02 , C23C14/34 , C23C14/54 , G11B7/26 , H01L21/02 , H01L21/677 , H01L21/68
摘要： PROBLEM TO BE SOLVED: To reduce the intrusion of gases between adjoining vacuum chambers without causing the reduction of production efficiency.
SOLUTION: The derivation places of gases g
1 to g
7 are changed from the sides of vacuum chambers 1
1 to 1
7 to the sides of vacuum pumps 5
1 to 5
7 by changing means 3
1 to 3
7 . Gases g
1 to g
7 introduced into the plurality of vacuum chambers 1
1 to 1
7 are exhausted by the vacuum pumps 5
1 to 5
7 . Opening and closing means 6
1 to 6
8 are opened, and objects 7 are conveyed by conveying means. The opening and closing means 6
1 to 6
8 are closed, and the derivation places of the gases g
1 to g
7 are changed from the sides of the vacuum pumps 5
1 to 5
7 for exhaust to the sides of the vacuum chambers 1
1 to 1
7 . In this way, at the time when the opening and closing means 6
1 to 6
8 are opened, the introduction of the gases into the vacuum chambers 1
1 to 1
7 is quickly stopped, and after the closing of the opening and closing means 6
1 to 6
8 , the flow rates of the gases g
1 to g
7 to be introduced into the vacuum chambers 1
1 to 1
7 can be quickly stabilized.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：减少相邻真空室之间的气体侵入，而不会降低生产效率。
解决方案：气体g 1 到g 7 的导出位置从真空室1 1 的侧面改变为1 SB > 7 通过将装置3 1 改变为3 7 到真空泵5 1 至5 / SB>。引入多个真空室1 1 7 的气体g 1 至g 7 SB被耗尽真空泵5＆lt; SB＆gt;〜5＆lt; SB＆gt; 7＆lt; SB＆gt;。打开和关闭装置6 至 8 打开，物体7由输送装置输送。打开和关闭装置6＆lt; SB＆gt;至＆lt; SB＆gt; 8＆lt; SB＆gt;关闭，气体g 1 到g < / SB>从真空泵5 1 的侧面改变为5 7 ，以排出到真空室1的一侧<1> SB 1 7 。以这种方式，当打开和关闭装置6 至 8 打开时，将气体引入真空室1 < / SB>至1 7 快速停止，并且在打开和关闭装置6 1 关闭到6 SB SB之后，流量的气体g 1 至g 7 被引入真空室1 1 至1 7 可以是快速稳定版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2005182935A Magneto-optical recording medium and its manufacturing method 审中-公开
标题翻译：磁光记录介质及其制造方法
公开(公告)号：JP2005182935A
公开(公告)日：2005-07-07
申请号：JP2003423850
申请日：2003-12-19
申请人： Sony Corp , ソニー株式会社
发明人： OTA TERUYUKI , MIYATA KAZUTOMO , WATANABE MAKOTO
IPC分类号： G11B11/105
摘要： PROBLEM TO BE SOLVED: To suppress displacement of composition of a magnetic layer according to increase of integrated power of a target.
SOLUTION: A magnetic layer 3 is formed by introducing Ar and Kr gases in a process chamber and performing sputtering so as to increase the ratio of Ar gas flow against Kr gas flow (Ar gas flow/Kr gas flow) according to the increase of the integrated power of the target.
COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2004326857A Magneto-optical disk and its recording and reproducing method 审中-公开
标题翻译：磁光盘及其记录和再现方法
公开(公告)号：JP2004326857A
公开(公告)日：2004-11-18
申请号：JP2003117026
申请日：2003-04-22
申请人： Sony Corp , ソニー株式会社
发明人： WATANABE MAKOTO , MIYATA KAZUTOMO , OTA TERUYUKI , HIDA MINORU
IPC分类号： G11B7/24 , G11B7/004 , G11B7/005 , G11B7/007 , G11B11/00 , G11B11/105 , G11B19/12 , G11B20/00 , G11B20/10
CPC分类号： G11B11/10597 , G11B7/00736 , G11B7/24082 , G11B7/24094 , G11B11/10515 , G11B11/10528 , G11B11/10584 , G11B19/122 , G11B20/00086 , G11B20/00268
摘要： PROBLEM TO BE SOLVED: To provide a magneto-optical disk which has a small diameter and large capacity and can record and reproduce the disk discrimination information, its recording method, and a reproducing method. SOLUTION: This magneto-optical disk has, on its substrate, a main recording region in which first information is recorded, a sub-recording region which is formed at a more inner circumference side than the main recording region and in which second information including disk discrimination information is recorded, and a recording layer which is formed between the main recording region and the sub-recording region and including a buffer region in which third information is recorded. The second information is recorded by using a mark column formed in a stripe shape in the sub-recording region and the buffer region, wherein a plurality of marks constituting the mark column are a part where the a magnetization state of the recording layer is changed. The third information can be reproduced by a modulation signal of reflectance along the circumferential direction of the disk. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有小直径和大容量的磁光盘，并且可以记录和再现盘识别信息，其记录方法和再现方法。解决方案：该磁光盘在其基板上具有记录有第一信息的主记录区域，形成在比主记录区域更内侧的副记录区域，其中第二记录区域记录包括盘识别信息的信息，以及形成在主记录区域和副记录区域之间并包括其中记录有第三信息的缓冲区域的记录层。通过使用在子记录区域和缓冲区域中形成为条形的标记列来记录第二信息，其中构成标记列的多个标记是记录层的磁化状态改变的部分。可以通过沿盘的圆周方向的反射率的调制信号再现第三信息。版权所有（C）2005，JPO＆NCIPI

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