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1. 发明申请

US20040257950A1 Optical record medium and method for recording information on optical record medium 失效
标题翻译：光学记录介质以及在光学记录介质上记录信息的方法
公开(公告)号：US20040257950A1
公开(公告)日：2004-12-23
申请号：US10492814
申请日：2004-04-16
申请人： TDK Corporation
发明人： Tatsuya Kato , Hajime Utsunomiya
IPC分类号： G11B005/09
CPC分类号： G11B7/00454 , G11B7/0062
摘要： It is an object of the present invention to provide a method of recording information to an optical recording medium that is suited to achieving high data transfer rates. The method of recording information according to the present invention is adapted for recording information to an optical recording medium by forming on the optical recording medium a plurality of recording marks selected from a group consisting of several types of recording marks each with different lengths, wherein a bottom power of a laser beam used for forming at least one recording mark contained in the group is set to be higher than a reproducing power of a laser beam used for reproducing information. According to the present invention, since the bottom power helps to erase a recording mark, it is possible to maintain a high erase efficiency even when information is recorded by setting a high data transfer rate.
摘要翻译：本发明的目的是提供一种将信息记录到适于实现高数据传输速率的光记录介质上的方法。根据本发明的记录信息的方法适于通过在光学记录介质上形成多个记录标记来将信息记录到光学记录介质上，所述多个记录标记选自具有不同长度的几种类型的记录标记，其中a 用于形成组中包含的至少一个记录标记的激光束的底部功率被设置为高于用于再现信息的激光束的再现功率。根据本发明，由于底部功率有助于擦除记录标记，所以即使通过设置高的数据传送速率记录信息，也可以保持较高的擦除效率。

2. 发明申请

US20020015816A1 Optical recording medium 有权
标题翻译：光记录介质
公开(公告)号：US20020015816A1
公开(公告)日：2002-02-07
申请号：US09886258
申请日：2001-06-22
申请人： TDK CORPORATION
发明人： Hiroshi Shingai , Hiroyasu Inoue , Tatsuya Kato , Hajime Utsunomiya , Yoshitomo Tanaka
IPC分类号： B32B003/02
CPC分类号： G11B7/2433 , G11B7/2534 , G11B7/2542 , G11B7/256 , G11B7/2578 , G11B7/259 , G11B2007/24306 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25715 , G11B2007/25716 , Y10T428/21
摘要： In an optical recording medium comprising a phase change recording layer (4) containing Sb and optionally, Te and/or In as a main component, the recording layer is able to be crystallized to provide a crystallized region which contains rhombohedral crystals consisting essentially of Sb and is substantially free of a crystal phase other than the rhombohedral crystals. When the recording layer contains a rare earth element, Zr, Hf, Ti or Sn as an auxiliary component, the medium has a dielectric layer (31) composed of silicon oxide, silicon nitride, aluminum oxide, or a mixture of zinc sulfide and at least 30 mol % of silicon oxide, disposed contiguous to and in front of the recording layer (4) as viewed from the recording/reading beam incident side. The medium has a high transfer rate and improved thermal stability.
摘要翻译：在包括含有Sb的相变记录层（4）和任选的Te和/或In作为主要成分的光记录介质中，记录层能够结晶以提供包含基本上由Sb组成的菱面体晶体的结晶区域并且基本上没有除了菱方晶之外的结晶相。当记录层含有稀土元素，Zr，Hf，Ti或Sn作为辅助成分时，介质具有由氧化硅，氮化硅，氧化铝或硫化锌的混合物构成的电介质层（31）从记录/读取光束入射侧观察，邻近并在记录层（4）的前面设置至少30摩尔％的氧化硅。介质具有高传输速率和改善的热稳定性。

3. 发明申请

US20040191689A1 Optical recording medium and data recording medium for recording data in the same 审中-公开
标题翻译：用于记录数据的光记录介质和数据记录介质
公开(公告)号：US20040191689A1
公开(公告)日：2004-09-30
申请号：US10809178
申请日：2004-03-25
申请人： TDK Corporation
发明人： Hiroshi Shingai , Tatsuya Kato , Hideki Hirata
IPC分类号： G11B007/24
CPC分类号： G11B7/126 , G11B7/0062 , G11B7/00736 , G11B7/243 , G11B7/257
摘要： An optical recording medium includes a recording layer, a first dielectric layer disposed on the side of a light incidence plane through which the laser beam enters with respect to the recording layer, a second dielectric layer disposed on the side opposite to the light incidence plane with respect to the recording layer, a heat radiation layer disposed on the side of the light incidence plane with respect to the first dielectric layer and a reflective layer disposed on the side opposite to the light incidence plane with respect to the second dielectric layer, the recording layer containing a phase change material represented by an atomic composition formula: SbaTebGecMnd, where a is equal to or larger than 57 and equal to or smaller than 74, c is equal to or larger than 2 and equal to or smaller than 10, d is equal to or larger than 5 and equal to or smaller than 20, (anulld) is equal to or larger than 74 and equal to or smaller than 81 and a/b is equal to or larger than 2.9 and equal to or smaller than 4.7, in an amount equal to or more than 95 atomic %. According to the thus constituted optical recording medium, it is possible to simultaneously improve characteristics of recording data therein at a high linear velocity, data reproduction durability and storage reliability.
摘要翻译：光记录介质包括记录层，设置在激光束相对于记录层进入的光入射面侧的第一介质层，设置在与光入射面相对的一侧的第二介电层，相对于记录层，相对于第一电介质层设置在光入射面一侧的散热层和相对于第二介电层设置在与入射平面相反的一侧的反射层，记录含有由原子组成式SbaTebGecMnd表示的相变材料的层，其中a等于或大于57且等于或小于74，c等于或大于2并且等于或小于10，d是等于或大于5且等于或小于20，（a + d）等于或大于74并且等于或小于81，并且a / b等于或大于2.9并且等于或小于4.7，等于或大于95原子％。根据这样构成的光记录介质，可以以高线速度，数据再现耐久性和存储可靠性同时提高记录数据的特性。

4. 发明申请

US20020191527A1 Readout method and apparatus for optical information medium 有权
标题翻译：光信息媒体的读出方法和装置
公开(公告)号：US20020191527A1
公开(公告)日：2002-12-19
申请号：US10125476
申请日：2002-04-19
申请人： TDK CORPORATION
发明人： Takashi Kikukawa , Tatsuya Kato , Hajime Utsunomiya , Hiroshi Shingai
IPC分类号： G11B007/125
CPC分类号： G11B7/005 , G11B7/1263 , G11B7/24
摘要： An information readout method for an optical information medium comprising an information recording layer having pits or recorded marks representative of information data involves the step of irradiating a laser beam to the information recording layer through an objective lens for providing readings of the pits or recorded marks. When the laser beam has a wavelength null of 400 to 410 nm, the objective lens has a numerical aperture NA of 0.70 to 0.85, and the pits or recorded marks have a minimum size PL of up to 0.36null/NA, readout is carried out at a power Pr of at least 0.4 mW for the laser beam. When the laser beam has a wavelength null of 630 to 670 nm, the objective lens has a numerical aperture NA of 0.60 to 0.65, and the pits or recorded marks have a minimum size PL of up to 0.36null/NA, readout is carried out at a power Pr of at least 1.0 mW for the laser beam. Pits or recorded marks of a size approximate to the resolution limit determined by diffraction can be read out at a high C/N.
摘要翻译：包括具有表示信息数据的凹坑或记录标记的信息记录层的光信息介质的信息读出方法包括通过用于提供凹坑或记录标记的读数的物镜将激光束照射到信息记录层的步骤。当激光束具有400至410nm的波长长度时，物镜的数值孔径NA为0.70至0.85，凹坑或记录的标记具有高达0.36lambd / NA的最小尺寸PL，读出被执行在激光束的功率Pr为至少0.4mW。当激光束具有630至670nm的波长长度时，物镜的数值孔径NA为0.60至0.65，并且凹坑或记录标记具有高达0.36lambd / NA的最小尺寸PL，读出被执行在激光束的功率Pr为至少1.0mW。通过衍射确定的大小接近分辨率极限的刻痕或记录标记可以高C / N读出。

5. 发明申请

US20020012305A1 Optical recording medium and optical recording method 审中-公开
标题翻译：光记录介质和光记录方法
公开(公告)号：US20020012305A1
公开(公告)日：2002-01-31
申请号：US09883199
申请日：2001-06-19
申请人： TDK CORPORATION
发明人： Hiroshi Shingai , Hiroyasu Inoue , Tatsuya Kato , Hajime Utsunomiya
IPC分类号： G11B007/24
CPC分类号： G11B7/126 , G11B7/00454 , G11B7/24085 , G11B7/243 , G11B7/2531 , G11B7/258 , G11B7/259 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/24322 , G11B2007/25708 , G11B2007/25715
摘要： In an optical recording medium having a phase change recording layer, recorded marks having a shortest length of up to 350 nm are formed in the recording layer which contains Sb as a main component. This enables formation of microscopic recorded marks which are stabilized in shape and size. The medium remains reliable in that the microscopic recorded marks are improved in thermal stability.
摘要翻译：在具有相变记录层的光记录介质中，在包含Sb作为主要成分的记录层中形成具有最高350nm的最短长度的记录标记。这使得能够形成在形状和尺寸上稳定的微观记录标记。介质保持可靠，因为微观记录的标记在热稳定性方面得到改善。

6. 发明申请

US20040047278A1 Optical information medium, making method, recording/reading method, and inspecting method 审中-公开
标题翻译：光信息介质，制作方法，记录/读取方法和检查方法
公开(公告)号：US20040047278A1
公开(公告)日：2004-03-11
申请号：US10657184
申请日：2003-09-09
申请人： TDK CORPORATION
发明人： Tsuyoshi Komaki , Hideki Hirata , Tatsuya Kato
IPC分类号： G11B007/24
CPC分类号： G11B7/2542 , G11B7/24056 , G11B7/24067 , G11B7/2534 , G11B7/256 , G11B7/2585 , G11B7/26 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25715 , G11B2007/25716
摘要： In an optical information medium comprising a supporting substrate, an information recording layer thereon, and a light-transmitting layer wherein a recording/reading laser beam enters the recording layer through the light-transmitting layer, the light-transmitting layer is formed of a resin and has a tensile strength at break of 5-40 MPa, a tensile elongation at break of 15-100%, and a tensile modulus of 40-1,000 MPa. The medium has improved recording/reading characteristics when a laser beam defines a beam spot having a small diameter of up to 300 nullm and the medium is rotated at a high linear velocity of at least 8 m/s.
摘要翻译：在包括支撑基板，其上的信息记录层和透光层的光学信息介质中，其中记录/读取激光束通过透光层进入记录层，透光层由树脂形成并且断裂拉伸强度为5-40MPa，断裂拉伸伸长率为15-100％，拉伸模量为40-1,000MPa。当激光束限定具有高达300μm的小直径的束斑并且介质以至少8m / s的高线速度旋转时，介质具有改善的记录/读取特性。

7. 发明申请

US20030063540A1 Optical recording method 失效
标题翻译：光记录方式
公开(公告)号：US20030063540A1
公开(公告)日：2003-04-03
申请号：US10109594
申请日：2002-03-27
申请人： TDK Corporation
发明人： Tatsuya Kato , Hajime Utsunomiya , Hideki Hirata
IPC分类号： G11B007/0045
CPC分类号： G11B7/0062 , G11B20/10
摘要： An optical recording method that performs recording by irradiating optical recording media with laser beam modulated in intensity based on a write waveform is provided. The write waveform has a plurality of write pulse blocks for forming write marks, and each write pulse block has at least one type of upward pulse. In the event that the width of said upward pulse is so narrow that the laser beam intensity corresponding to the peak intensity of that upward pulse cannot be obtained, the peak intensity of that upward pulse is increased so that, in said laser beam, the beam intensity it should have or a value close thereto is obtained. Thereby, good recording and playback characteristics can be obtained even when recording at a high transfer rate.
摘要翻译：提供了一种通过基于写入波形以强度激光束照射光学记录介质进行记录的光学记录方法。写入波形具有用于形成写入标记的多个写入脉冲块，并且每个写入脉冲块具有至少一种类型的向上的脉冲。在所述上升脉冲的宽度如此窄使得不能获得与该向上脉冲的峰值强度对应的激光束强度的情况下，该向上脉冲的峰值强度增加，使得在所述激光束中，获得其应具有的强度或接近其值。因此，即使以高传送速度进行记录，也可以获得良好的记录和播放特性。

8. 发明申请

US20020018439A1 Optical recording medium and its production method 失效
标题翻译：光记录介质及其制作方法
公开(公告)号：US20020018439A1
公开(公告)日：2002-02-14
申请号：US09899152
申请日：2001-07-06
申请人： TDK CORPORATION
发明人： Tatsuya Kato , Hajime Utsunomiya , Hiroyasu Inoue , Hideki Hirata
IPC分类号： G11B007/24
CPC分类号： G11B7/24085 , G11B7/00745 , G11B7/261
摘要： In an optical recording medium wherein grooves or lands formed on the supporting substrate are used for the recording tracks, and wherein prepits are also formed, production of the supporting substrate and high density recording are facilitated. This medium comprises a supporting substrate and a recording layer on the substrate wherein the surface of the supporting substrate on which the recording layer is formed is formed with alternating continuous convex portions and continuous concave portions which are substantially parallel to each other. The adjacent continuous convex portions are connected by bridging convex portions extending in transverse direction, and the bridging convex portion has a planar configuration that its width is minimum at or near the center between the adjacent continuous convex portions. The supporting substrate is produced by using a master disk which has a resist layer formed with mother patterns of each of the continuous convex portions, continuous concave portions, and prepits. In the production of the master disk, the resist layer is intermittently irradiated with one exposure beam, and the area irradiated is used as the mother pattern of the continuous concave portions or convex portions, and the area which was not irradiated is used as the mother pattern of the prepits.
摘要翻译：在其中形成在支撑基板上的槽或焊盘用于记录轨道的光记录介质中，并且还形成预凹坑，便于生产支撑基板和高密度记录。该介质包括支撑衬底和衬底上的记录层，其中形成有记录层的支撑衬底的表面形成有彼此基本平行的交替的连续凸部和连续凹部。相邻的连续凸部通过在横向延伸的桥接凸部连接，并且桥接凸部具有在相邻的连续凸部之间的中心处或其附近的宽度最小的平面构造。支撑基板通过使用具有形成有连续凸部，连续凹部和预凹坑中的每一个的母体图案的抗蚀剂层的母盘来制造。在母盘的制造中，用一个曝光束间歇地照射抗蚀剂层，照射的面积用作连续凹部或凸部的母体图案，未照射的区域用作母体预制图案。

9. 发明申请

US20040208105A1 Optical recording medium 审中-公开
标题翻译：光记录介质
公开(公告)号：US20040208105A1
公开(公告)日：2004-10-21
申请号：US10824081
申请日：2004-04-14
申请人： TDK Corporation
发明人： Hiroshi Shingai , Tatsuya Kato , Hideki Hirata
IPC分类号： G11B007/24
CPC分类号： G11B7/252 , G11B7/00456 , G11B7/0062 , G11B7/24 , G11B7/243 , G11B7/257 , G11B7/259 , G11B2007/24306 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25708 , G11B2007/25713
摘要： An optical recording medium includes a recording layer, a first dielectric layer disposed on the side of a light incidence plane through which the laser beam enters with respect to the recording layer, a second dielectric layer disposed on the side opposite to the light incidence plane with respect to the recording layer, a heat radiation layer disposed on the side of the light incidence plane with respect to the first dielectric layer and a reflective layer disposed on the side opposite to the light incidence plane with respect to the second dielectric layer, the recording layer containing a phase change material represented by an atomic composition formula: SbaTebGecMnd, where a is equal to or larger than 55 and equal to or smaller than 70, c is equal to or larger than 4 and equal to or smaller than 10, d is equal to or larger than 10 and equal to or smaller than 20, a/b is equal to or larger than 2.8 and equal to or smaller than 3.5 and a/d is equal to or larger than 3.0 and equal to or smaller than 6.0, in an amount equal to or more than 95 atomic %. According to the thus constituted optical recording medium, it is possible to simultaneously improve characteristics of recording data therein at a high linear velocity, data reproduction durability and storage reliability.
摘要翻译：光记录介质包括记录层，设置在激光束相对于记录层进入的光入射面侧的第一介质层，设置在与光入射面相对的一侧的第二介电层，相对于记录层，相对于第一电介质层设置在光入射面一侧的散热层和相对于第二介电层设置在与入射平面相反的一侧的反射层，记录含有由原子组成式SbaTebGecMnd表示的相变材料的层，其中a等于或大于55且等于或小于70，c等于或大于4并且等于或小于10，d是等于或大于10且等于或小于20，a / b等于或大于2.8且等于或小于3.5，并且a / d等于或大于3.0并且等于t 或小于6.0，等于或大于95原子％。根据这样构成的光记录介质，可以以高线速度，数据再现耐久性和存储可靠性同时提高记录数据的特性。

10. 发明申请

US20040146805A1 Optical recording medium 审中-公开
标题翻译：光记录介质
公开(公告)号：US20040146805A1
公开(公告)日：2004-07-29
申请号：US10756036
申请日：2004-01-13
申请人： TDK Corporation
发明人： Tatsuya Kato , Hiroshi Shingai , Tatsuhiro Kobayashi , Hideki Hirata
IPC分类号： G11B007/24
CPC分类号： G11B7/257 , G11B7/00454 , G11B7/24079 , G11B7/243
摘要： An optical recording medium includes a recording layer in which a record mark can be formed by projecting a laser beam thereonto, a first dielectric layer disposed on the side of a light incidence plane with respect to the recording layer, a second dielectric layer disposed on the opposite side to the light incidence plane with respect to the recording layer, a heat radiation layer disposed on the side of the light incidence plane with respect to the first dielectric layer and a reflective layer disposed on the opposite side to the light incidence plane with respect to the second dielectric layer, the recording layer containing a phase change material represented by a general formula: (SbxTenullx)nully My wherein M is an element other than Sb and Te, the first dielectric layer containing a mixture of ZnS and SiO2, the reflective layer containing Ag or alloy containing 90 atomic % or more of Ag, and the heat radiation layer containing 90 atomic % or more of aluminum nitride. According to the present invention, it is possible to provide a data rewritable type optical recording medium whose durability is improved when data are reproduced repeatedly, which can suppress cross-erasing of data when data are to be recorded or erased and in which data can be recorded with high sensitivity at a high velocity.
摘要翻译：光记录介质包括记录层，其中可以通过将激光束投射到其上而形成记录标记;相对于记录层设置在光入射面一侧的第一介电层，设置在该记录层上的第二介电层相对于记录层相对于光入射面的相对侧，相对于第一电介质层设置在光入射面侧的散热层和设置在与光入射面相反的一侧的反射层，相对于在所述第二介质层中，所述记录层含有由通式（Sb x Te + x）+ y My表示的相变材料，其中M是不同于Sb和Te的元素，所述第一介电层含有ZnS和SiO 2的混合物，含有Ag或含有90原子％以上的Ag的合金的反射层和含有90原子％以上的氮化铝的散热层。根据本发明，可以提供一种数据可重写型光学记录介质，当数据被重复地再现时其耐久性得到改善，这可以在数据被记录或擦除时抑制数据的交错擦除，并且数据可以是以高速度高灵敏度记录。

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