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11. 发明授权

US08409686B2 Optical recording medium and method for manufacturing the same 有权
标题翻译：光记录介质及其制造方法
公开(公告)号：US08409686B2
公开(公告)日：2013-04-02
申请号：US12882281
申请日：2010-09-15
申请人： Hiroyasu Inoue , Takashi Kikukawa , Koji Mishima , Yoshiaki Komma , Joji Anzai , Jun Nakano , Manami Miyawaki , Shigeki Takagawa
发明人： Hiroyasu Inoue , Takashi Kikukawa , Koji Mishima , Yoshiaki Komma , Joji Anzai , Jun Nakano , Manami Miyawaki , Shigeki Takagawa
IPC分类号： B32B3/02
CPC分类号： G11B7/24038 , Y10T428/21
摘要： An optical recording medium having three or more information recording layers reduces crosstalk caused by multi-reflected beams and improves signal quality. In the optical recording medium having three or more information recording layers, the refractive index of a plurality of intermediate layers disposed between adjacent information recording layers is greater than the refractive index of a cover layer disposed between a light incident surface and an information recording layer being the closest from the light incident surface.
摘要翻译：具有三个或更多个信息记录层的光记录介质减少了由多反射光束引起的串扰并提高了信号质量。在具有三个以上信息记录层的光记录介质中，设置在相邻信息记录层之间的多个中间层的折射率大于设置在光入射表面和信息记录层之间的覆盖层的折射率，最靠近光入射面。

12. 发明申请

US20100296377A1 METHOD OF EVALUATING CHARACTERISTICS OF MULTILAYER OPTICAL RECORDING MEDIUM 有权
标题翻译：多层光学记录介质特性评估方法
公开(公告)号：US20100296377A1
公开(公告)日：2010-11-25
申请号：US12864437
申请日：2009-01-27
申请人： Koji Mishima , Hiroyasu Inoue , Takashi Kikukawa , Tetsuya Nishiyama
发明人： Koji Mishima , Hiroyasu Inoue , Takashi Kikukawa , Tetsuya Nishiyama
IPC分类号： G11B27/36
CPC分类号： G11B7/268 , G01B11/06 , G11B7/00375 , G11B7/24038
摘要： A multilayer optical recording medium having three or more information recording layers is irradiated with a laser beam, and a first signal obtained from the reflected laser beam is subjected to a frequency filter. A second signal obtained by filtration through a high-pass filter is used to evaluate the characteristics of the multilayer optical recording medium. In this manner, even in a multilayer optical recording medium having three or more information recording layers, the influence of the variation of the thickness and material of the information recording layers and the influence of the variation of the thickness of a spacer layer can be clearly determined and evaluated.
摘要翻译：用激光束照射具有三个以上信息记录层的多层光记录介质，对从反射激光束得到的第一信号进行频率滤波。使用通过高通滤波器过滤获得的第二信号来评估多层光学记录介质的特性。以这种方式，即使在具有三个或更多个信息记录层的多层光学记录介质中，信息记录层的厚度和材料的变化的影响以及间隔层的厚度的变化的影响也可以是清楚的确定和评估。

13. 发明申请

US20100143637A1 Optical recording medium, and method for producing optical recording medium 有权
标题翻译：光记录介质，以及光记录介质的制造方法
公开(公告)号：US20100143637A1
公开(公告)日：2010-06-10
申请号：US12580721
申请日：2009-10-16
申请人： Yoshiaki KOMMA , Joji Anzai , Hiroyasu Inoue , Takashi Kikukawa , Koji Mishima , Jun Nakano , Manami Miyawaki , Shigeki Takagawa
发明人： Yoshiaki KOMMA , Joji Anzai , Hiroyasu Inoue , Takashi Kikukawa , Koji Mishima , Jun Nakano , Manami Miyawaki , Shigeki Takagawa
IPC分类号： B32B3/02 , G11B7/26
CPC分类号： G11B7/24038 , G11B7/1376 , G11B7/13925 , Y10T428/21
摘要： An object of the invention is to provide an optical recording medium and a method for producing an optical recording medium that enable to improve the quality of a servo signal and a reproduction signal. The optical recording medium satisfies: t3−t4≧1 μm, t4−t2≧1 μm, t2≧10 μm, and t1−(t2+t3+t4)≧1 μm, where t1 is a thickness between a surface of the optical recording medium, and the first information recording surface, t2 is a thickness between the first optical recording surface and the second information recording surface, t3 is a thickness between the second optical recording surface and the third information recording surface, and t4 is a thickness between the third optical recording surface and the fourth information recording surface.
摘要翻译：本发明的目的是提供一种能够提高伺服信号和再现信号的质量的光学记录介质和光学记录介质的制造方法。光记录介质满足：t3-t4≥1μm，t4-t2≥1μm，t2≥10μm，t1-（t2 + t3 + t4）≥1μm，其中t1是光学表面之间的厚度记录介质，第一信息记录表面，t2是第一光学记录表面和第二信息记录表面之间的厚度，t3是第二光学记录表面和第三信息记录表面之间的厚度，t4是第三光学记录表面和第四信息记录表面。

14. 发明申请

US20080049595A1 Optical recording medium 有权
标题翻译：光记录介质
公开(公告)号：US20080049595A1
公开(公告)日：2008-02-28
申请号：US11892088
申请日：2007-08-20
申请人： Koji Mishima , Takashi Kikukawa , Hidetake Itoh
发明人： Koji Mishima , Takashi Kikukawa , Hidetake Itoh
IPC分类号： G11B7/26 , G11B3/70
CPC分类号： G11B7/24038 , Y10T428/21
摘要： An optical recording medium has a five-layer structure including five recording layers, namely an L0 layer, an L1 layer, an L2 layer, an L3 layer, and an L4 layer in this order from a side farthest away from a laser light incident surface. The materials of the respective recording layers are selected so that the rate of change in transmittance Tb/Ta as taken from the laser light incident surface satisfies 0.93
摘要翻译：光记录介质具有五层结构，其包括五层记录层，即L层，L层，L层，层，L 3层和L 4层，从离激光入射面最远的一侧开始。选择各记录层的材料，使得当在L 0 0层记录时，从激光入射表面获得的透射率Tb / Ta的变化率满足0.93

15. 发明申请

US20080049579A1 Multilayer optical recording medium 有权
标题翻译：多层光记录介质
公开(公告)号：US20080049579A1
公开(公告)日：2008-02-28
申请号：US11826466
申请日：2007-07-16
申请人： Takashi Kikukawa , Koji Mishima , Hidetake Itoh
发明人： Takashi Kikukawa , Koji Mishima , Hidetake Itoh
IPC分类号： G11B7/20 , G11B3/74
CPC分类号： G11B7/2437 , G11B7/24038 , G11B7/2433 , G11B7/259 , G11B2007/24308 , G11B2007/24312 , G11B2007/24314
摘要： A multilayer recording medium has a three-layered structure for an increased capacity, including an L0 layer, an L1 layer, and an L2 layer in order from the side farthest away from the incident surface of laser light. The recording layers are made of respective recording film materials selected so that the recording films of the recording layers have respective recording-reaction temperatures T0, T1, and T2, where T0≦T1≦T2 and T0
摘要翻译：多层记录介质具有用于增加容量的三层结构，包括L 0层，L 1层和L 2 N层 >层从距激光入射面最远的一侧依次排列。记录层由选择的各个记录膜材料制成，使得记录层的记录膜具有各自的记录 - 反应温度T 0，T 1和T _{2 ，其中T <0 <= T 1 <= T 2＆lt; T＆lt; 0＆lt; T 2 。这使得各个记录层的记录灵敏度基本上相同，并且延长了各个记录层的激光的最佳记录功率基本上相同，使得记录在L上的信息所需的激光的记录功率特别是防止层<！ - SIPO - >过高。}

16. 发明授权

US07940634B2 Multilayer optical recording medium and recording method on multilayer optical recording medium 有权
标题翻译：多层光记录介质和多层光记录介质的记录方法
公开(公告)号：US07940634B2
公开(公告)日：2011-05-10
申请号：US11898427
申请日：2007-09-12
申请人： Koji Mishima , Takashi Kikukawa , Hidetake Itoh
发明人： Koji Mishima , Takashi Kikukawa , Hidetake Itoh
IPC分类号： G11B7/00
CPC分类号： G11B7/24038 , G11B7/259 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/2432 , G11B2007/25706 , G11B2007/25715
摘要： In a multilayer optical recording medium having three or more recording layers, when data is recorded on a recording layer far away from an incident surface of laser light, and especially on a recording layer farthest away from the incident surface of the laser light, by applying the laser light, the recording power margin of the farthest recording layer allows for a variation in the optimal recording sensitivity even if the transmittance of the recording layers located between the laser light incident surface side and the target recording layer is varied due to existing recordings and the amount of the laser light passing therethrough is also varied. In this case, the recording layer which is the farthest from an incident surface of laser light has a phase change recording film, and the recording layer which is the nearest from the incident surface of the laser light has a write-once read-multiple recording film.
摘要翻译：在具有3个以上记录层的多层光记录介质中，当数据记录在远离激光入射面的记录层上，特别是在离激光入射面最远的记录层上时，即使激光入射面侧和目标记录层之间的记录层的透射率由于现有记录而变化，最远记录层的记录功率余量也允许最佳记录灵敏度的变化，通过其的激光的量也变化。在这种情况下，距离激光入射面最远的记录层具有相变记录膜，并且与激光的入射面最接近的记录层具有一次写入多次记录电影。

17. 发明授权

US07852721B2 Method for setting recording power, multilayer optical recording medium, and method for recording information 有权
标题翻译：设置记录功率的方法，多层光学记录介质以及用于记录信息的方法
公开(公告)号：US07852721B2
公开(公告)日：2010-12-14
申请号：US12171345
申请日：2008-07-11
申请人： Takashi Kikukawa , Koji Mishima
发明人： Takashi Kikukawa , Koji Mishima
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/0045 , G11B2007/0013
摘要： A method for setting recording power of recording light, capable of an appropriate setting for a multilayer optical recording medium. The recording power of the recording light for an information recording layer of the multilayer optical recording medium to be irradiated with, is set by: evaluating an information recording layer to be evaluated for recording power when all the information recording layer(s) lying closer to a light incident surface than the information recording layer to be evaluated does is/are in a low transmittance state; evaluating the information recording layer to be evaluated for recording power when all the information recording layer(s) lying closer to the light incident surface than the information recording layer to be evaluated does is/are in a high transmittance state; and determining ground information for setting recording power, based on these values of the recording power.
摘要翻译：一种用于设置记录光的记录功率的方法，其能够适用于多层光学记录介质的设置。通过以下方式设定用于要照射的多层光学记录介质的信息记录层的记录光的记录功率：评估当所有信息记录层更靠近的所有信息记录层时评估记录功率的信息记录层比待评估的信息记录层的光入射面处于低透射率状态; 当比要评估的信息记录层更靠近光入射面的信息记录层的所有信息记录层都处于高透射率状态时评估要评估的记录功率的信息记录层处于高透射率状态; 以及基于记录功率的这些值来确定用于设置记录功率的接地信息。

18. 发明申请

US20080170485A1 Optical recording medium 审中-公开
标题翻译：光记录介质
公开(公告)号：US20080170485A1
公开(公告)日：2008-07-17
申请号：US12003913
申请日：2008-01-03
申请人： Koji Mishima , Hidetake Itoh , Takashi Kikukawa
发明人： Koji Mishima , Hidetake Itoh , Takashi Kikukawa
IPC分类号： G11B7/00
CPC分类号： G11B7/24038 , G11B7/2433 , G11B7/2437 , G11B2007/24314 , G11B2007/2432
摘要： The optical recording medium includes a first information layer including a first recording film having an extinction coefficient of 0.4 or less at a wavelength of a laser beam used for recording and reproducing, and a second information layer including a second recording film consisting essentially of the same constituent elements as those of the first recording film and having an extinction coefficient of 0.4 or less. Among the first and second information layers, the first information layer is located further away from a laser beam-incident surface than the second information layer located closest to the incident surface. The first information layer further includes a light absorbing film having an extinction coefficient of 1.5 or more at the wavelength of the laser beam, the extinction coefficient of the light absorbing film being greater than that of the first recording film.
摘要翻译：光记录介质包括第一信息层，包括在用于记录和再现的激光束的波长处具有0.4或更小的消光系数的第一记录膜，以及包括基本上由其组成的第二记录膜的第二信息层构成要素为第一记录膜的消光系数为0.4以下。在第一和第二信息层中，第一信息层位于比最接近入射表面的第二信息层更远离激光束入射表面。第一信息层还包括在激光束的波长处具有1.5或更大的消光系数的光吸收膜，光吸收膜的消光系数大于第一记录膜的消光系数。

19. 发明申请

US20080151730A1 Optical recording and reading method, optical recording and reading apparatus, and optical recording medium 审中-公开
标题翻译：光学记录和读取方法，光学记录和读取装置以及光学记录介质
公开(公告)号：US20080151730A1
公开(公告)日：2008-06-26
申请号：US12004866
申请日：2007-12-21
申请人： Takashi Kikukawa , Koji Mishima , Hidetake Itoh
发明人： Takashi Kikukawa , Koji Mishima , Hidetake Itoh
IPC分类号： G11B3/74
CPC分类号： G11B7/0945 , G11B7/08511 , G11B2007/0013
摘要： An optical recording and reading method capable of enhancing the design flexibility of recording layers of an optical recording medium and performing accurate optical recording and reading operations. The optical recording and reading method is one for recording and reading an optical recording medium having three or more recording layers by irradiating the same with laser light using an optical recording and reading apparatus. When an optical recording medium is mounted on the optical recording and reading apparatus, the positions of the recording layers of the optical recording medium are measured using the laser light.
摘要翻译：一种光学记录和读取方法，其能够增强光记录介质的记录层的设计灵活性并执行精确的光学记录和读取操作。光学记录和读取方法是通过使用光学记录和读取装置用激光照射具有三个或更多个记录层的光学记录介质的方法。当光学记录介质安装在光学记录和读取设备上时，使用激光测量光学记录介质的记录层的位置。

20. 发明申请

US20070274185A1 Optical disc and method and system for reproducing optical disc 审中-公开
标题翻译：用于再现光盘的光盘和方法和系统
公开(公告)号：US20070274185A1
公开(公告)日：2007-11-29
申请号：US11798453
申请日：2007-05-14
申请人： Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi , Tsutomu Aoyama
发明人： Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi , Tsutomu Aoyama
IPC分类号： G11B20/10
CPC分类号： G11B20/1217 , G11B7/005 , G11B7/00736 , G11B7/24 , G11B7/24065 , G11B7/259 , G11B20/1012 , G11B2007/24306 , G11B2007/2432 , G11B2020/1265 , G11B2020/1289 , G11B2020/1292 , G11B2020/1298 , G11B2220/2537
摘要： An optical disc has a data management area in a region on a radially inward side. Management information is recorded in the data management area as recording marks and spaces. The optical disc also has a data recording area on the outside of the data management area. Data to be read is recoded in the data recording area as recording marks and spaces. The information readout density of the data recording area is higher than that of the data management area. The read power of a readout laser beam during readout can be set smaller in the data management area than in the data recording area. In this manner, the read stability is significantly increased without reducing the information readout density.
摘要翻译：光盘在径向内侧的区域中具有数据管理区域。管理信息作为记录标记和空格记录在数据管理区域中。光盘在数据管理区域的外侧也具有数据记录区域。要读取的数据在数据记录区域中被重新编码为记录标记和空格。数据记录区域的信息读出密度高于数据管理区域的信息读出密度。读出期间的读出激光束的读取功率可以在数据管理区域中比在数据记录区域中更小。以这种方式，在不减少信息读出密度的情况下，读取稳定性显着增加。

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