公开(公告)号：US08470429B2

公开(公告)日：2013-06-25

申请号：US13185062

申请日：2011-07-18

申请人： Kotaro Kurokawa ,  Shigeki Takagawa

发明人： Kotaro Kurokawa ,  Shigeki Takagawa

IPC分类号： G11B7/24

CPC分类号： G11B7/24038 ,  G11B7/2433 ,  G11B7/2578 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  Y10T428/21

摘要： An optical recording medium includes a support substrate, and a semi-transmissive recording layer including a first dielectric layer, a semi-transmissive semi-reflective layer, a second dielectric layer, a phase-change recording material layer, and a third dielectric layer which are laminated in that order from the support substrate side. The semi-transmissive semi-reflective layer is composed of silver, and the first dielectric layer includes a composite oxide layer using niobium oxide.

摘要翻译： 光学记录介质包括支撑基板和包括第一介电层，半透射半反射层，第二介电层，相变记录材料层和第三介电层的半透射记录层， 从支撑基板侧依次层叠。 半透射半反射层由银组成，第一介电层包括使用氧化铌的复合氧化物层。

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。

公开(公告)号：US07972673B2

公开(公告)日：2011-07-05

申请号：US11552816

申请日：2006-10-25

申请人： Tetsuhiro Sakamoto ,  Takashi Shimouma ,  Shigeki Takagawa ,  Jun Nakano ,  Goro Fujita

发明人： Tetsuhiro Sakamoto ,  Takashi Shimouma ,  Shigeki Takagawa ,  Jun Nakano ,  Goro Fujita

IPC分类号： B32B3/02

CPC分类号： G11B20/00688 ,  G11B7/0053 ,  G11B7/259 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/00594 ,  G11B20/10 ,  G11B2220/218 ,  G11B2220/2541 ,  Y10T428/21

摘要： An optical recording medium is provided. The optical recording medium includes at least a reflective film and a cover layer on a substrate; main data by a combination of pit and land are recorded on the substrate; a write-once recording is made to be possible on the reflective film by irradiating a laser light; sub-data are recorded by a mark that is formed by the irradiation of laser light for the write-once recording with respect to the reflective film; a reproducing signal level at portion where said mark is formed increases for the land of specified length; the mark by which the reproduced level decreases at the portion where the mark is formed is formed for an optical disc recording medium manufactured by physical copy; the reflective film is composed of an Ag-alloy film of Ag100-xXx(0

摘要翻译： 提供光记录介质。 光记录介质至少包括反射膜和基底上的覆盖层; 通过凹坑和焊盘的组合的主要数据被记录在基板上; 通过照射激光使反射膜上的一次写入记录成为可能; 子数据由相对于反射膜的一次写入记录的激光照射形成的标记记录; 在所述标记形成的部分处的再现信号电平对于规定长度的地面增加; 对于通过物理复制制造的光盘记录介质，形成在形成标记部分时再现电平降低的标记; 反射膜由Ag100-xXx（0

公开(公告)号：US20090274033A1

公开(公告)日：2009-11-05

申请号：US12423473

申请日：2009-04-14

申请人： Kouichi Yasuda ,  Shigeki Takagawa

发明人： Kouichi Yasuda ,  Shigeki Takagawa

IPC分类号： G11B7/24 ,  C23C14/34

CPC分类号： G11B7/266 ,  C23C14/06 ,  C23C14/3414 ,  G11B7/2433 ,  G11B7/252 ,  G11B2007/24306 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432

摘要： An optical recording medium includes a substrate having features that define track regions, an optical recording layer disposed on the substrate, and a light-transmitting layer disposed on the optical recording layer. The optical recording layer has a composition of (Sb2Se3)wTexOyPdz, where w, x, y, and z each represent a molar percent and satisfy 10 (mol %)≦w≦60 (mol %), 0 (mol %)

摘要翻译： 光学记录介质包括具有限定轨道区域的特征的基板，设置在基板上的光学记录层以及设置在光学记录层上的透光层。 光学记录层具有（Sb 2 Se 3）w TexO y P dz的组成，其中w，x，y和z分别表示摩尔百分比，满足10（摩尔％）≤w≤60（摩尔％），0（摩尔％） （摩尔％），30（摩尔％）<= y <= 60（摩尔％），10（摩尔％）≤Z≤30（摩尔％），w + x + y + z = 100。

公开(公告)号：US5768221A

公开(公告)日：1998-06-16

申请号：US716066

申请日：1996-09-19

申请人： Yutaka Kasami ,  Koichi Yasuda ,  Atsushi Fukumoto ,  Shigeki Takagawa

发明人： Yutaka Kasami ,  Koichi Yasuda ,  Atsushi Fukumoto ,  Shigeki Takagawa

IPC分类号： G11B7/00 ,  G11B7/0055 ,  G11B7/09 ,  G11B7/14 ,  G11B7/26 ,  G11B7/30 ,  G11B11/105 ,  G11B13/00 ,  G11B3/70

CPC分类号： G11B7/26 ,  G11B11/10523 ,  G11B11/10554 ,  G11B2007/0013 ,  G11B7/00557

摘要： A multiple-recording-layer optical recording medium has a plurality of recording layers to be initialized by exposure to light, with a transparent layer interposed between the recording layers. Light is applied simultaneously to the to the recording layers to initialize the recording layers simultaneously.

摘要翻译： 多记录层光学记录介质具有通过曝光而初始化的多个记录层，并且在记录层之间插入透明层。 光同时施加到记录层，以同时初始化记录层。

公开(公告)号：US20090262640A1

公开(公告)日：2009-10-22

申请号：US12396775

申请日：2009-03-03

申请人： Kensaku TAKAHASHI ,  Jun NAKANO ,  Shin MASUHARA ,  Tetsuhiro SAKAMOTO ,  Shigeki TAKAGAWA

发明人： Kensaku TAKAHASHI ,  Jun NAKANO ,  Shin MASUHARA ,  Tetsuhiro SAKAMOTO ,  Shigeki TAKAGAWA

IPC分类号： G11B7/24 ,  B29C59/16

CPC分类号： G11B7/26

摘要： An optical-disc manufacturing method including the steps of: fabricating a pre-exposure disc master by forming, on a substrate, a heat accumulation layer having a thickness of 17% or less of a recording-laser wavelength and forming an inorganic resist layer; performing exposure of a recording-signal pattern having pits and spaces with respect to the inorganic resist layer of the disc master, by performing recording-laser light irradiation; fabricating a disc master having a pit-array shape having pits and spaces, by performing development processing after the exposure; manufacturing a stamper to which the pit-array shape is transferred, by using the disc master having the pit-array shape; and manufacturing an optical disc having a predetermined layer structure including a recording layer to which the pit-array shape of the stamper is transferred and in which a silver or silver-alloy reflective film is formed on the pit-array shape.

摘要翻译： 一种光盘制造方法，包括以下步骤：通过在基板上形成具有记录激光波长的17％或更小的厚度的热积层并形成无机抗蚀剂层来制造预曝光盘主机; 通过执行记录激光照射，对相对于盘主机的无机抗蚀剂层的凹坑和间隔进行曝光; 通过在曝光之后进行显影处理来制造具有坑和空间的凹坑阵列形状的光盘主体; 通过使用具有凹坑阵列形状的盘主机来制造凹坑阵列形状被传送的压模; 并且制造具有预定层结构的光盘，所述预定层结构包括转印有凹坑阵列形状的记录层，并且在凹坑阵列形状上形成银或银合金反射膜。

公开(公告)号：US08465822B2

公开(公告)日：2013-06-18

申请号：US13183704

申请日：2011-07-15

申请人： Kotaro Kurokawa ,  Shigeki Takagawa

发明人： Kotaro Kurokawa ,  Shigeki Takagawa

IPC分类号： G11B7/24

CPC分类号： G11B7/24038 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  Y10T428/21

摘要： An optical recording medium includes a support substrate and a semi-transmissive recording layer. The semi-transmissive recording layer includes a first dielectric layer, a semi-transmissive semi-reflective layer, a second dielectric layer, a phase change recording material layer, and a third dielectric layer that are sequentially stacked in that order on the support substrate. The semi-transmissive semi-reflective layer contains silver. The second dielectric layer has a stack structure including a lower layer disposed at the interface on the semi-transmissive semi-reflective layer side and an upper layer disposed on the phase change recording material layer side of the lower layer. The lower layer is composed of indium oxide or a composite oxide of indium oxide and tin oxide. The upper layer is composed of tantalum oxide, gallium oxide, zirconium oxide, or niobium oxide.

摘要翻译： 光记录介质包括支撑衬底和半透射记录层。 半透射记录层包括在支撑基板上顺序堆叠的第一介电层，半透射半反射层，第二介电层，相变记录材料层和第三介电层。 半透射半反射层含有银。 第二介质层具有堆叠结构，其包括设置在半透射半反射层侧的界面处的下层和设置在下层的相变记录材料层侧上的上层。 下层由氧化铟或氧化铟和氧化锡的复合氧化物构成。 上层由氧化钽，氧化镓，氧化锆或氧化铌构成。

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。

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。

公开(公告)号：US20070097849A1

公开(公告)日：2007-05-03

申请号：US11552816

申请日：2006-10-25

申请人： Tetsuhiro Sakamoto ,  Takashi Shimouma ,  Shigeki Takagawa ,  Jun Nakano ,  Goro Fujita

发明人： Tetsuhiro Sakamoto ,  Takashi Shimouma ,  Shigeki Takagawa ,  Jun Nakano ,  Goro Fujita

IPC分类号： G11B3/70

CPC分类号： G11B20/00688 ,  G11B7/0053 ,  G11B7/259 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/00594 ,  G11B20/10 ,  G11B2220/218 ,  G11B2220/2541 ,  Y10T428/21

摘要： An optical recording medium is provided. The optical recording medium includes at least a reflective film and a cover layer on a substrate; main data by a combination of pit and land are recorded on the substrate; a write-once recording is made to be possible on the reflective film by irradiating a laser light; sub-data are recorded by a mark that is formed by the irradiation of laser light for the write-once recording with respect to the reflective film; a reproducing signal level at portion where said mark is formed increases for the land of specified length; the mark by which the reproduced level decreases at the portion where the mark is formed is formed for an optical disc recording medium manufactured by physical copy; the reflective film is composed of an Ag-alloy film of Ag100−xXx(0

摘要翻译： 提供光记录介质。 光记录介质至少包括反射膜和基底上的覆盖层; 通过凹坑和焊盘的组合的主要数据被记录在基板上; 通过照射激光使反射膜上的一次写入记录成为可能; 子数据由相对于反射膜的一次写入记录的激光照射形成的标记记录; 在所述标记形成的部分处的再现信号电平对于规定长度的地面增加; 对于通过物理复制制造的光盘记录介质，形成在形成标记部分时再现电平降低的标记; 反射膜由Ag 100-x X x（O