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公开(公告)号：US6146733A
公开(公告)日：2000-11-14
申请号：US212866
申请日：1998-12-17
申请人： Hiroyasu Inoue , Tatsuya Kato , Hajime Utsunomiya
发明人： Hiroyasu Inoue , Tatsuya Kato , Hajime Utsunomiya
CPC分类号： G11B7/257 , G11B7/24 , G11B7/243 , G11B7/252 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/2571 , G11B2007/25713 , G11B2007/25715 , G11B2007/25716 , G11B7/006 , G11B7/00718 , Y10S428/913 , Y10S430/142 , Y10T428/21
摘要： A phase change type optical recording medium comprises a dielectric layer 1a, a dielectric layer 1b, a phase change type recording layer and a second dielectric layer in the described order. The recording layer satisfies Ac/Aa.gtoreq.0.8 where Ac is an absorption coefficient of the recording layer in a crystalline region and Aa is an absorption coefficient of the recording layer in an amorphous region. The dielectric layer 1a comprises ZnS--SiO.sub.2 as main components and the dielectric layer 1b comprises a metal nitride or ZnS--SiO.sub.2 having an SiO.sub.2 content of 40 to 80 mol % as main components. At least an area of the second dielectric layer that is in contact with the recording layer comprises a metal nitride, a rare earth oxide, silicon oxide or ZnS--SiO.sub.2 having an SiO.sub.2 content of at least 40 mol% as main components. However, an optical recording medium comprising a dielectric layer 1a having an SiO.sub.2 content of 2 mol % to less than 40 mol % and a second dielectric layer having an SiO.sub.2 content of 40 to 80 mol % is precluded from the invention.
摘要翻译： 相变型光记录介质包括介电层1a，电介质层1b，相变型记录层和第二电介质层。 记录层满足Ac / Aa> / = 0.8，其中Ac是结晶区中记录层的吸收系数，Aa是非晶区中记录层的吸收系数。 电介质层1a包括ZnS-SiO 2作为主要成分，电介质层1b包含SiO2含量为40〜80mol％的金属氮化物或ZnS-SiO 2为主要成分。 与记录层接触的第二电介质层的至少一个区域包括SiO 2含量为至少40mol％作为主要成分的金属氮化物，稀土氧化物，氧化硅或ZnS-SiO 2。 然而，本发明不包括具有2mol％至小于40mol％的SiO2含量的介电层1a和SiO含量为40至80mol％的第二介电层的光学记录介质。
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12.发明授权Optical recording medium including protruding winding parts used as prepits 失效光记录介质，包括用作预凹坑的突出的绕组部分公开(公告)号：US06665260B2
公开(公告)日：2003-12-16
申请号：US09899152
申请日：2001-07-06
申请人： Tatsuya Kato , Hajime Utsunomiya , Hiroyasu Inoue , Hideki Hirata
发明人： Tatsuya Kato , Hajime Utsunomiya , Hiroyasu Inoue , Hideki Hirata
IPC分类号： G11B724
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。
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公开(公告)号：US6040030A
公开(公告)日：2000-03-21
申请号：US153294
申请日：1998-09-15
申请人： Hajime Utsunomiya , Tatsuya Kato , Hiroyasu Inoue
发明人： Hajime Utsunomiya , Tatsuya Kato , Hiroyasu Inoue
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/0055 , G11B7/006 , G11B7/007 , G11B7/125 , G11B7/30 , B32B3/00
CPC分类号： G11B7/006 , G11B7/00718 , G11B7/00454 , G11B7/00557 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： A method for recording/reproducing an optical recording medium of phase change type is provided. The method enables a high density recording while increase in the cross erase is suppressed. The method also enables an accurate tracking while increase in the crosstalk is suppressed. The method is adapted for use with an optical recording medium of phase change type comprising a substrate having a thickness of up to 0.8 mm wherein lands and grooves on opposite sides of the land are formed on the surface, and both the lands and the grooves are used as recording tracks, and the medium is overwritten at a recording power Pw (mW) and an erasing power Pe (mW) which meet the relation: (Pw/Pe).times.k.sup.2 .ltoreq.8.5, when the medium has a recording track pitch P (.mu.m), the recording/reproducing optical system has a numerical aperture NA, and the recording/reproducing light has a wavelength .lambda. (.mu.m) which meet the relation: k=(.lambda./NA)/P.gtoreq.1.78.
摘要翻译： 提供了一种用于记录/再现相变型光记录介质的方法。 该方法能够进行高密度记录，同时抑制交叉擦除的增加。 该方法还能够进行精确的跟踪，同时抑制串扰的增加。 该方法适用于包括厚度高达0.8mm的基板的相变型光记录介质，其中在该表面上形成有焊盘相对两侧的焊盘和凹槽，并且焊盘和凹槽均为 用作记录轨道，并且当介质具有记录轨道间距时，记录功率Pw（mW）和满足关系式（Pw / Pe）xk2 <8.5的擦除功率Pe（mW）被覆盖介质 P（μm），记录/再现光学系统具有数值孔径NA，并且记录/再现光具有满足以下关系的波长λ（μm）：k =（λ/NA)/P>/=1.78 。
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公开(公告)号：US07324426B2
公开(公告)日：2008-01-29
申请号：US10923699
申请日：2004-08-24
IPC分类号： G11B7/24
CPC分类号： G11B7/243 , G11B7/24035 , G11B7/24067 , G11B2007/24308 , G11B2007/24312
摘要： An optical information recording medium which is capable of performing high-density recording of record data, and storing the recorded data for a long time period such that the recorded data can be normally reproduced during the long time period. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Cu as the main component and having Au added thereto, and disposed in the vicinity of the first recording film.
摘要翻译： 一种光信息记录介质，其能够执行高密度记录记录数据，并且将长时间的记录数据存储，使得能够在长时间段内正常再现记录数据。 光学信息记录介质具有形成在基板上的记录层，用于对其进行照射的激光束记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由包含Si作为主要成分的第一材料形成。 第二子记录膜由包含Cu作为主要成分并且添加有Au并且设置在第一记录膜附近的第二材料形成。
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公开(公告)号：US07321543B2
公开(公告)日：2008-01-22
申请号：US10923674
申请日：2004-08-24
IPC分类号： G11B7/24
CPC分类号： G11B7/24 , G11B7/243 , G11B2007/24304 , G11B2007/24308 , G11B2007/24312
摘要： An optical information recording medium which makes it possible to reduce the noise level and improve the C/N ratio. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Zn as the main component and having Cu added thereto, and disposed in the vicinity of the first recording film. The laser beam is irradiated to the recording layer via a light transmitting layer formed in a manner covering the recording layer side.
摘要翻译： 一种光信息记录介质，其可以降低噪声水平并提高C / N比。 光学信息记录介质具有形成在基板上的记录层，用于对其进行照射的激光束记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由包含Si作为主要成分的第一材料形成。 第二副记录膜由含有Zn作为主要成分并且添加有Cu并且设置在第一记录膜附近的第二材料形成。 通过以覆盖记录层侧的方式形成的透光层将激光束照射到记录层。
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公开(公告)号：US07141289B2
公开(公告)日：2006-11-28
申请号：US10923679
申请日：2004-08-24
IPC分类号： B32B3/02
CPC分类号： G11B7/24035 , G11B7/24067
摘要： An optical information recording medium which is capable of performing high-density recording of record data, and storing the recorded data for a long time period such that the recorded data can be normally reproduced during the long time period. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Cu as the main component and having Zn added thereto, and disposed in the vicinity of the first recording film.
摘要翻译： 一种光信息记录介质，其能够执行高密度记录记录数据，并且将记录数据长时间地存储，使得可以在长时间段内正常再现所记录的数据。 光学信息记录介质具有形成在基板上的记录层，用于对其进行照射的激光束记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由包含Si作为主要成分的第一材料形成。 第二子记录膜由包含Cu作为主要成分并且添加有Zn并且设置在第一记录膜附近的第二材料形成。
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公开(公告)号：US07141288B2
公开(公告)日：2006-11-28
申请号：US10923666
申请日：2004-08-24
IPC分类号： B32B3/02
CPC分类号： G11B7/243 , G11B2007/24304 , G11B2007/24308 , G11B2007/24312
摘要： An optical information recording medium which is capable of performing high-density recording of record data, and storing the recorded data for a long time period such that the recorded data can be normally reproduced during the long time period. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Cu as the main component and having Mg added thereto, and disposed in the vicinity of the first recording film.
摘要翻译： 一种光信息记录介质，其能够执行高密度记录记录数据，并且将长时间的记录数据存储，使得能够在长时间段内正常再现记录数据。 光学信息记录介质具有形成在基板上的记录层，用于对其进行照射的激光束记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由包含Si作为主要成分的第一材料形成。 第二子记录膜由包含Cu作为主要成分并且添加有Mg并且设置在第一记录膜附近的第二材料形成。
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公开(公告)号：US20050047306A1
公开(公告)日：2005-03-03
申请号：US10923699
申请日：2004-08-24
CPC分类号： G11B7/243 , G11B7/24035 , G11B7/24067 , G11B2007/24308 , G11B2007/24312
摘要： An optical information recording medium which is capable of performing high-density recording of record data, and storing the recorded data for a long time period such that the recorded data can be normally reproduced during the long time period. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproduction of record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as the main component. The second sub-recording film is formed of a second material containing Cu as the main component and having Au added thereto, and disposed in the vicinity of the first recording film.
摘要翻译： 一种光信息记录介质，其能够执行高密度记录记录数据，并且将长时间的记录数据存储，使得能够在长时间段内正常再现记录数据。 光学信息记录介质具有形成在基板上的记录层，用于对其进行照射的激光束记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由包含Si作为主要成分的第一材料形成。 第二子记录膜由包含Cu作为主要成分并且添加有Au并且设置在第一记录膜附近的第二材料形成。
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公开(公告)号：US20050018590A1
公开(公告)日：2005-01-27
申请号：US10896051
申请日：2004-07-22
CPC分类号： G11B7/24 , G11B7/243 , G11B7/259 , G11B2007/24304 , G11B2007/2431 , G11B2007/24312
摘要： An optical information recording medium which makes it possible to reduce the noise level and improve the C/N ratio. An optical information recording medium has a recording layer formed on a substrate, for having a laser beam irradiated thereto for recording and reproducing record data. The recording layer includes a first sub-recording film and a second sub-recording film. The first sub-recording film is formed of a first material containing Si as a main component. The second sub-recording film is formed of a second material containing Zn as a main component and having Al added thereto, and disposed in the vicinity of the first recording film. The laser beam is irradiated to the recording layer via a light transmitting layer formed in a manner covering the recording layer.
摘要翻译： 一种光信息记录介质，其可以降低噪声水平并提高C / N比。 光学信息记录介质具有形成在基板上的记录层，用于将激光束照射到其上用于记录和再现记录数据。 记录层包括第一副记录膜和第二副记录膜。 第一副记录膜由以Si为主要成分的第一材料形成。 第二子记录膜由含有Zn作为主要成分并且添加有Al并且设置在第一记录膜附近的第二材料形成。 通过以覆盖记录层的方式形成的透光层将激光束照射到记录层。
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公开(公告)号：US5593789A
公开(公告)日：1997-01-14
申请号：US353269
申请日：1994-12-05
IPC分类号： G11B11/105 , G11B5/66
CPC分类号： G11B11/10586 , G11B11/10582 , Y10T428/265
摘要： This invention has for its object to provide a magneto-optical recording medium at low costs, which is high in magnetic field sensitivity and reliability, and enables high C/N to be obtained even at high linear velocity.The magneto-optical recording medium of this invention includes on a substrate a first dielectric film, a recording film of a rare earth element-transition element alloy (including Fe), a second dieleetric film containing a metal element M and nitrogen N and a reflective film. In this medium, the recording film is up to 65 nm in thickness, and the respective diffusion indices of oxygen, nitrogen and metal element M in the vicinity of the boundary between the second dielectric and recording films are within the predetermined ranges, when the element distribution is measured by Auger electron spectroscopy under the predetermined conditions. The maximum value of the oxygen content in the vicinity of said boundary is 5 to 25 at %.
摘要翻译： 本发明的目的是提供一种低成本的磁光记录介质，其磁场灵敏度和可靠性高，并且即使在高线速度下也能获得高C / N。 本发明的磁光记录介质在基板上包括第一电介质膜，稀土元素 - 过渡元素合金（包括Fe）的记录膜，含有金属元素M和氮N的第二die膜和反射 电影。 在该介质中，记录膜的厚度达到65nm，并且在第二电介质和记录膜之间的边界附近，氧，氮和金属元素M的各自扩散指数在预定范围内， 在预定条件下通过俄歇电子能谱测量分布。 所述边界附近的氧含量的最大值为5〜25at％。
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