公开(公告)号：US20040191462A1

公开(公告)日：2004-09-30

申请号：US10805773

申请日：2004-03-22

申请人： TDK Corporation ,  Pioneer Corporation

发明人： Yasuo Hosoda ,  Ayumi Mitsumori ,  Megumi Sato ,  Masataka Yamaguchi ,  Tetsuya Iida ,  Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima

IPC分类号： B32B003/00

CPC分类号： C23C14/3414 ,  G11B7/243 ,  G11B7/258 ,  G11B7/259 ,  G11B7/266 ,  G11B2007/24306 ,  G11B2007/24312 ,  Y10T428/21

摘要： An optical recording medium includes a recording layer containing as a primary component an alloy containing at least two elements selected from the group consisting of Fe, Al and Si and the alloy contained in the recording layer as a primary component has a composition nullx1, y1, z1null in terms of the ternary composition diagram that falls within a region of a pentagon defined by straight lines connecting points null57, 43, 0null, null0, 55, 45null, null15, 0, 85null, null89, 11, 0null and null0, 16, 84null in the ternary composition diagram. According to the thus configured optical recording medium, only minimal load is placed on the global environment.

摘要翻译： 光记录介质包括含有选自Fe，Al和Si中的至少两种元素的合金作为主要成分的记录层，作为主要成分的记录层中含有的合金具有组成[x1，y1 ，z1]的三元组成图表示在由连接点[57,43,0]，[0,55,45]，[15,0,85]，[89]的直线所限定的五边形区域内 ，11,0]和[0,16,84]。 根据如此配置的光记录介质，只有最小的负载被放置在全球环境中。

公开(公告)号：US20040190435A1

公开(公告)日：2004-09-30

申请号：US10805727

申请日：2004-03-22

申请人： TDK Corporation ,  Pioneer Corporation

发明人： Yasuo Hosoda ,  Ayumi Mitsumori ,  Megumi Sato ,  Masataka Yamaguchi ,  Tetsuya Iida ,  Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima

IPC分类号： G11B007/24

CPC分类号： G11B7/243 ,  C23C14/185 ,  C23C14/3414 ,  G11B7/24038 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/266 ,  G11B2007/24306 ,  G11B2007/2431 ,  G11B2007/24312 ,  Y10T428/21

摘要： An optical recording medium includes a recording layer containing an alloy represented by a general formula: (TixM11-x)yM21-y, where element M1 is Si or Al, element M2 is an element selected from the group consisting of Si, Al and Fe and different from the element M1, x is equal to or larger than 0.3 and equal to or smaller than 0.8, and y is equal to or larger than 0.75 and equal to or smaller than 1. The thus constituted optical recording medium only places minimal load on the global environment.

摘要翻译： 光学记录介质包括含有由通式（TixM11-x）yM21-y表示的合金的记录层，其中元素M1是Si或Al，元素M2是选自Si，Al和Fe 并且与元件M1不同，x等于或大于0.3且等于或小于0.8，并且y等于或大于0.75且等于或小于1.由此构成的光学记录介质仅施加最小的载荷 在全球环境下。

公开(公告)号：US20040052194A1

公开(公告)日：2004-03-18

申请号：US10613525

申请日：2003-07-03

申请人： TDK Corporation

发明人： Hiroyasu Inoue ,  Hironori Kakiuchi ,  Masaki Aoshima ,  Koji Mishima

IPC分类号： G11B007/135

CPC分类号： G11B7/258 ,  G11B7/24038 ,  G11B7/243 ,  G11B7/259

摘要： An optical recording medium includes a substrate, a light transmission layer and a plurality of recording layers between the substrate and the light transmission layer and capable of recording data in the plurality of recording layers and reproducing data recorded in the plurality of recording layers by projecting a laser beam via the light transmission layer onto the plurality of recording layers, at least one recording layer other than a farthest recording layer from the light transmission layer among the plurality of recording layers including a first recording film containing Si as a primary component and a second recording film located in the vicinity of the first recording film and containing Cu as a primary component. In the thus constituted optical recording medium, it is possible to record data in a farthest recording layer from the light transmission layer and reproduce data from the farthest recording layer in a desired manner.

摘要翻译： 光学记录介质包括基板，透光层和在基板和光透射层之间的多个记录层，并且能够在多个记录层中记录数据，并且通过投影一个记录层来再现记录在多个记录层中的数据 激光束经由光透射层到多个记录层上，在多个记录层之中的至少一个与光传输层最远的记录层之间的记录层包括含有Si作为主要成分的第一记录膜和第二记录层 记录膜位于第一记录膜附近并含有Cu作为主要成分。 在这样构成的光记录介质中，可以将数据记录在距离光传输层最远的记录层中，并以期望的方式从最远的记录层再现数据。

公开(公告)号：US20030202452A1

公开(公告)日：2003-10-30

申请号：US10423686

申请日：2003-04-25

申请人： TDK Corporation

发明人： Koji Mishima ,  Masaki Aoshima ,  Hiroyasu Inoue ,  Hideki Hirata ,  Hajime Utsunomiya

IPC分类号： G11B007/004 ,  G11B007/135 ,  G11B003/70 ,  B32B003/02 ,  G11B007/24

CPC分类号： G11B7/243 ,  G11B7/258 ,  G11B2007/24304 ,  G11B2007/24308 ,  G11B2007/24312 ,  G11B2007/24328 ,  Y10S430/146

摘要： An optical recording medium includes a substrate, a first recording layer formed on the substrate and containing an element selected from the group consisting of Si, Ge, C, Sn, Zn and Cu as a primary component, and a second recording layer located in the vicinity of the first recording layer and containing Al as a primary component, the optical recording medium being constituted to be irradiated by a laser beam projected onto the side opposite from the substrate and the total thickness of the first recording layer and the second recording layer being equal to or thinner than 40 nm. According to the thus constituted optical recording medium, it is possible to decrease a noise level and improve a C/N ratio in a reproduced signal.

公开(公告)号：US20040076907A1

公开(公告)日：2004-04-22

申请号：US10684981

申请日：2003-10-14

申请人： TDK Corporation

发明人： Hiroyasu Inoue ,  Hironori Kakiuchi ,  Masaki Aoshima ,  Koji Mishima

IPC分类号： G11B007/24

CPC分类号： G11B7/24067 ,  G11B7/24035 ,  G11B7/24038 ,  G11B7/266

摘要： An optical recording medium includes a recording layer and a dielectric layer formed in the vicinity of the recording layer and the dielectric layer contains an oxide as a primary component and being added with nitrogen. The thus constituted optical recording medium can exhibit excellent optical characteristics with respect to a laser beam of desired wavelength used for recording data and reproducing data.

摘要翻译： 光记录介质包括在记录层附近形成的记录层和电介质层，并且电介质层含有氧化物作为主要成分并加入氮。 这样构成的光记录介质可以表现出相对于用于记录数据和再现数据的所需波长的激光束的优异的光学特性。

公开(公告)号：US20040027973A1

公开(公告)日：2004-02-12

申请号：US10637407

申请日：2003-08-07

申请人： TDK Corporation

发明人： Masaki Aoshima ,  Hiroyasu Inoue ,  Koji Mishima

IPC分类号： G11B007/00 ,  G11B007/26 ,  G11B007/24

CPC分类号： G11B7/241 ,  G11B7/00455 ,  G11B7/2433 ,  G11B7/2534 ,  G11B7/259 ,  G11B2007/24304 ,  G11B2007/24312 ,  G11B2007/24328 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716

摘要： An optical recording medium includes a substrate, a first recording layer formed on the substrate and containing an element selected from the group consisting of C, Si, Ge and Sn as a primary component, and a second recording layer located in the vicinity of the first recording layer and containing an element selected from the group consisting of C, Si, Ge and Sn and different from the element contained as a primary component in the first recording layer as a primary component. According to thus constituted optical recording medium, it is possible to optically record data therein and reproduce data therefrom by projecting a laser beam having a wavelength of 350 nm to 450 nm thereonto, which includes two or more recording layers and is capable of decreasing noise level and improving C/N ratio of a reproduced signal.

摘要翻译： 光记录介质包括基板，形成在基板上并包含选自C，Si，Ge和Sn作为主要成分的元素的第一记录层，以及位于第一记录层附近的第二记录层 记录层，并且包含选自C，Si，Ge和Sn中的元素，并且不同于在第一记录层中作为主要成分包含的元素作为主要成分。 根据这样构成的光记录介质，可以在其中光学地记录数据并通过将具有350nm至450nm的波长的激光束投影到其上并且再现数据，其中包括两个或更多个记录层并且能够降低噪声水平 并提高再现信号的C / N比。

公开(公告)号：US20040202097A1

公开(公告)日：2004-10-14

申请号：US10818324

申请日：2004-04-05

申请人： TDK Corporation

发明人： Hisaji Oyake ,  Yuuichi Kawaguchi ,  Hiroaki Takahata ,  Kouji Mishima ,  Hiroyasu Inoue ,  Tsuyoshi Komaki ,  Masaki Aoshima ,  Hironori Kakiuchi

IPC分类号： G11B007/24

CPC分类号： G11B7/24079 ,  G11B7/00718 ,  G11B7/24038 ,  G11B7/24076 ,  G11B7/24082 ,  G11B7/243 ,  G11B7/258 ,  G11B7/266

摘要： An optical recording disk includes a support substrate, grooves and lands alternately formed on one major surface of the support substrate, an optical functioning layer formed on the one major surface of the support substrate on which the grooves and the lands are formed and including a recording layer and a light transmission layer formed on the optical functioning layer, the grooves and the lands being formed so that the depth Gd of each of the grooves is equal to or larger than 15 nm and equal to or smaller than 25 nm and the half width Gw is equal to or larger than 150 nm and is equal to or smaller than 230 nm, and the recording layer including a first recording film containing Si as a primary component and a second recording film containing Cu as a primary component. According to the thus constituted optical recording disk, it is possible to suppress jitter of a signal obtained by reading data within a predetermined range, thereby suppressing reading errors, and it is possible to maintain the level of a push-pull signal equal to or higher than a predetermined value, thereby enabling tracking control in a desired manner.

摘要翻译： 光记录盘包括支撑基板，交替地形成在支撑基板的一个主表面上的凹槽和凸台，形成在支撑基板的一个主表面上的光学功能层，其上形成有凹槽和凸台，并且包括记录 层和形成在光学功能层上的光透射层，所述凹槽和焊盘形成为使得每个凹槽的深度Gd等于或大于15nm且等于或小于25nm，并且半宽度 Gw等于或大于150nm并且等于或小于230nm，并且记录层包括含有Si作为主要成分的第一记录膜和含有Cu作为主要成分的第二记录膜。 根据这样构成的光记录盘，可以抑制通过在预定范围内读取数据而获得的信号的抖动，从而抑制读取误差，并且可以保持等于或更高的推挽信号的电平 从而能够以期望的方式进行跟踪控制。

公开(公告)号：US20040038080A1

公开(公告)日：2004-02-26

申请号：US10608814

申请日：2003-06-27

申请人： TDK Corporation

发明人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima

IPC分类号： G11B005/66

CPC分类号： G11B7/00455 ,  G11B7/00456 ,  G11B7/24067 ,  G11B7/243 ,  G11B7/257

摘要： An optical recording medium includes a substrate, two recording layers provided on the substrate and two dielectric layers each provided adjacent to one of the recording layers, the optical recording medium being constituted so that when it is irradiated with a laser beam having a wavelength null via an objective lens having a numerical aperture NA satisfying null/NAnull640 nm from the side opposite from the substrate, a record mark whose reflection coefficient is different from those of other regions of the recording layers is formed in the recording layers and at least a part of a region(s) of the dielectric layers adjacent to the record mark is crystallized to form a crystallized region. According to the thus constituted optical recording medium, it is possible to reproduce a signal having excellent signal characteristics.

摘要翻译： 光学记录介质包括基板，设置在基板上的两个记录层和与记录层之一相邻设置的两个电介质层，所述光学记录介质被构造成使得当用具有波长λ通过的激光束 具有从与基板相反的一侧满足λ/ NA <= 640nm的数值孔径NA的物镜，在记录层中形成反射系数与记录层的其他区域不同的记录标记，并且至少 与记录标记相邻的电介质层的一部分区域被结晶以形成结晶区域。 根据这样构成的光记录介质，可以再现具有优异信号特性的信号。

公开(公告)号：US20030235134A1

公开(公告)日：2003-12-25

申请号：US10447109

申请日：2003-05-29

申请人： TDK Corporation

发明人： Hiroyasu Inoue ,  Koji Mishima ,  Masaki Aoshima ,  Hideki Hirata ,  Hajime Utsunomiya ,  Hitoshi Arai ,  Yoshitomo Tanaka

IPC分类号： G11B007/00

CPC分类号： G11B7/00455 ,  G11B7/243 ,  G11B7/257 ,  G11B2007/24314 ,  G11B2007/24328

摘要： An optical recording/reproducing method and an optical recording medium capable of performing excellent optical recording with a simple structure in a recording layer made of environmentally friendly materials. The optical recording medium has a recording layer formed on a substrate and made of a mixture of a recording assist material and a dielectric material. A laser beam of which intensity is modulated in accordance with information to be recorded is irradiated onto this recording layer to cause a state change in the recording assist material and/or the dielectric material. The information can be recorded by changing optical characteristics thereof such as reflectivity. The recording assist material includes an element selected from Sn, Ti, Si, Bi, Ge, and C as a principle component, while the dielectric material as a base material for the dielectric layers is at least one of ZnS, SiO2, AlN, and Ta2O5.

摘要翻译： 一种光学记录/再现方法和光学记录介质，其能够在由环境友好的材料制成的记录层中以简单的结构执行优异的光学记录。 光记录介质具有形成在基板上并由记录辅助材料和电介质材料的混合物制成的记录层。 根据要记录的信息调制强度的激光束被照射到该记录层上，以引起记录辅助材料和/或电介质材料的状态改变。 可以通过改变诸如反射率的光学特性来记录信息。 记录辅助材料包括选自Sn，Ti，Si，Bi，Ge和C作为主要成分的元素，而作为电介质层的基材的电介质材料是ZnS，SiO 2，AlN和 Ta2O5。

公开(公告)号：US20030223351A1

公开(公告)日：2003-12-04

申请号：US10444172

申请日：2003-05-23

申请人： TDK Corporation

发明人： Masaki Aoshima ,  Hiroyasu Inoue ,  Koji Mishima ,  Hideki Hirata ,  Hajime Utsunomiya

IPC分类号： G11B003/70 ,  G11B005/84 ,  G11B007/26

CPC分类号： G11B7/243 ,  G11B7/00455 ,  G11B7/257 ,  G11B7/258 ,  G11B2007/24304 ,  G11B2007/24306 ,  G11B2007/24308 ,  G11B2007/24312

摘要： An optical recording medium includes a substrate, a first recording layer formed on the substrate and containing an element selected from the group consisting of Si, Sn and Ge as a primary component, and a second recording layer located in the vicinity of the first recording layer and containing Ag as a primary component, the optical recording medium being constituted to be irradiated by a laser beam projected onto the side opposite from the substrate. According to the thus constituted optical recording medium, it is possible to decrease a noise level and improve a C/N ratio in a reproduced signal.

摘要翻译： 光记录介质包括基板，形成在基板上并包含选自由Si，Sn和Ge组成的组中的元素作为主要成分的第一记录层和位于第一记录层附近的第二记录层 并且含有Ag作为主要成分，所述光记录介质被投射到与所述基板相反的一侧的激光束照射。 根据这样构成的光记录介质，可以降低再现信号中的噪声电平和提高C / N比。