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1. 发明授权

US08206805B2 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：US08206805B2
公开(公告)日：2012-06-26
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
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。

2. 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。

3. 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。

4. 发明授权

US08081548B2 Method of evaluating characteristics of multilayer optical recording medium 有权
标题翻译：评估多层光学记录介质特性的方法
公开(公告)号：US08081548B2
公开(公告)日：2011-12-20
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： G11B20/18
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。

5. 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。

6. 发明授权

US08588045B2 Information recording method and information recording apparatus 有权
标题翻译：信息记录方法和信息记录装置
公开(公告)号：US08588045B2
公开(公告)日：2013-11-19
申请号：US12531739
申请日：2008-03-10
申请人： Takashi Kikukawa , Koji Mishima
发明人： Takashi Kikukawa , Koji Mishima
IPC分类号： G11B27/36 , G11B7/013
CPC分类号： G11B7/0045 , G11B7/24038 , G11B2007/0013
摘要： Information is recorded on a multi-layered optical recording medium by irradiating it with a laser beam. The recording medium can form a first information recording layer that is the farthest from a light incident surface, a second information recording layer that is the second farthest from the light incident surface, and at least one third information recording layer that is located closer to the light incident surface than the second information recording layer is. At this time, if all the information recording layers other than the first information recording layer are either blank or have been completely recorded, then information is recorded on the first information recording layer. This allows for stabilizing the energy of a recording laser beam during recording and thereby providing improved recording quality.
摘要翻译：信息通过用激光束照射而记录在多层光学记录介质上。记录介质可以形成距离光入射面最远的第一信息记录层，距离光入射表面最远的第二信息记录层，以及至少一个第三信息记录层，位于更靠近光入射面比第二信息记录层为。此时，如果除了第一信息记录层之外的所有信息记录层都是空白的或已经被完全记录，则信息被记录在第一信息记录层上。这允许在记录期间稳定记录激光束的能量，从而提供改善的记录质量。

7. 发明授权

US07817526B2 Optical recording medium 有权
标题翻译：光记录介质
公开(公告)号：US07817526B2
公开(公告)日：2010-10-19
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： G11B7/24 , B32B3/02
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：光记录介质具有从距离激光入射面最远的一侧依次包括五个记录层的五层结构，即L0层，L1层，L2层，L3层和L4层。选择各个记录层的材料，使得当在记录层中记录在L0层上时，从激光入射表面获得的透射率Tb / Ta的变化率满足0.93

8. 发明申请

US20080170484A1 Optical recording medium 审中-公开
标题翻译：光记录介质
公开(公告)号：US20080170484A1
公开(公告)日：2008-07-17
申请号：US12003916
申请日：2008-01-03
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： G11B7/24079 , G11B7/24035 , G11B7/24067 , G11B7/259 , G11B2007/24304 , G11B2007/24306 , G11B2007/24314 , G11B2007/2432 , G11B2007/25706 , G11B2007/25708 , G11B2007/25715
摘要： A reliable optical recording medium is provided which includes an information layer exhibiting small changes in the optical properties even during long-term storage. The optical recording medium includes the information layer including a recording film having an extinction coefficient of 0.4 or less at the wavelength of a laser beam used for recording and reproducing. The information layer further includes a light absorbing film having an extinction coefficient of 1.5 or less at the wavelength of the laser beam, and the extinction coefficient of the light absorbing film is greater than that of the recording film.
摘要翻译：提供了一种可靠的光学记录介质，其包括即使在长期存储期间也表现出光学特性的小变化的信息层。光记录介质包括信息层，其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记录膜。信息层还包括在激光束的波长处具有1.5或更小的消光系数的光吸收膜，并且光吸收膜的消光系数大于记录膜的消光系数。

9. 发明授权

US07787334B2 Optical recording method on multilayer optical recording medium, optical recording apparatus, and multilayer optical recording medium 失效
标题翻译：多层光记录介质，光记录装置和多层光记录介质的光记录方法
公开(公告)号：US07787334B2
公开(公告)日：2010-08-31
申请号：US11998549
申请日：2007-11-30
申请人： Takashi Kikukawa , Koji Mishima , Tsutomu Aoyama , Hidetake Itoh
发明人： Takashi Kikukawa , Koji Mishima , Tsutomu Aoyama , Hidetake Itoh
IPC分类号： G11B7/00
CPC分类号： G11B7/007 , G11B7/0045 , G11B7/24038 , G11B7/24085 , G11B20/1883 , G11B2007/0013 , G11B2220/20 , G11B2220/215 , G11B2220/235 , G11B2220/2537
摘要： When there is a defect area in a specific recording layer, recording of information is continued and reduction in a recording rate is restrained. In an optical recording method for recording information on a multilayer optical recording medium having a plurality of recording layers by irradiating the recording layer with a beam spot, any recording layer is set as an escape recording layer. When a defect area is detected while information is recorded on another recording layer except for the escape recording layer, the beam spot moves to the escape recording layer to continue recording the information.
摘要翻译：当在特定记录层中存在缺陷区域时，继续记录信息并抑制记录速率的降低。在通过用光斑照射记录层而在具有多个记录层的多层光学记录介质上记录信息的光学记录方法中，将任何记录层设置为逃逸记录层。当在除了逃逸记录层之外的另一记录层上记录信息时检测到缺陷区域时，光束点移动到逃逸记录层以继续记录信息。

10. 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

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