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    OPTICAL DISK, METHOD OF MANUFACTURING SAME, OPTICAL INFORMATION DEVICE, AND INFORMATION PROCESSING METHOD
    1.
    发明申请
    OPTICAL DISK, METHOD OF MANUFACTURING SAME, OPTICAL INFORMATION DEVICE, AND INFORMATION PROCESSING METHOD 有权

    公开(公告)号：US20210327466A1

    公开(公告)日：2021-10-21

    申请号：US17360286

    申请日：2021-06-28

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Yoshiaki KOMMA

    IPC: G11B7/24067 ,  G11B7/258 ,  G11B7/24035 ,  G11B7/257 ,  G11B7/24062 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/1378

    Abstract: Provided is a method of manufacturing an optical disk having at least a cover layer, a first information recording surface, a first intermediate layer, a second information recording surface, a second intermediate layer, and a third information recording surface in order from a surface irradiated with a light beam on at least one side, wherein a numerical aperture of an objective lens that converges the light beam on any of the recording surface of the optical disk when information recording or information reproduction of the optical disk is performed is 0.91, standard value dk of each thickness from the surface to the first to third information recording surfaces is set on the premise of standard refractive index no, where k is 1, 2, 3, and a target value of each actual thickness from the surface to the first to third information recording surfaces is determined by a product of conversion coefficient g(n) depending on refractive index n from the first to third information recording surfaces, and standard value dk.

    Optical information recording medium
    3.
    发明授权
    Optical information recording medium 有权
    光信息记录介质

    公开(公告)号：US08865286B2

    公开(公告)日：2014-10-21

    申请号：US14101959

    申请日：2013-12-10

    Applicant: Sony Corporation

    Inventor： Hiroshi Tabata ,  Takeshi Miki

    IPC: G11B7/24 ,  G11B7/2403 ,  G11B7/2578 ,  G11B7/257 ,  G11B7/253 ,  G11B7/243

    CPC classification number: G11B7/2403 ,  G11B7/2578 ,  G11B2007/24304 ,  G11B2007/24306 ,  G11B2007/24308 ,  G11B2007/2432 ,  G11B2007/25301 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25715 ,  Y10T428/21

    Abstract: An optical information recording medium includes: a substrate; two or more information signal layers provided on the substrate; and a cover layer provided on the information signal layers. At least one of the two or more information signal layers is provided with an inorganic recording layer including Pd oxide, a first protective layer provided on a first main surface of the inorganic recording layer, and a second protective layer provided on a second main surface of the inorganic recording layer. And at least one of the first protective layer and the second protective layer includes a compound oxide of Si oxide, In oxide and Zr oxide as a main component.

    Abstract translation: 光学信息记录介质包括：基板; 设置在基板上的两个或更多个信息信号层; 以及设置在信息信号层上的覆盖层。 两个或更多个信息信号层中的至少一个设置有无机记录层，其包括Pd氧化物，设置在无机记录层的第一主表面上的第一保护层和设置在无机记录层的第二主表面上的第二保护层 无机记录层。 并且第一保护层和第二保护层中的至少一个包括作为主要成分的氧化物，氧化锆和氧化锆的复合氧化物。

    Optical disc
    6.
    发明申请
    Optical disc 审中-公开
    光盘

    公开(公告)号：US20050287331A1

    公开(公告)日：2005-12-29

    申请号：US11140000

    申请日：2005-05-31

    Applicant: Hitoshi Noguchi ,  Masahiro Higuchi ,  Yoshiaki Maeno

    Inventor： Hitoshi Noguchi ,  Masahiro Higuchi ,  Yoshiaki Maeno

    IPC: B32B3/02 ,  G11B7/243 ,  G11B7/257 ,  G11B7/258

    CPC classification number: G11B7/243 ,  G11B7/2539 ,  G11B7/257 ,  G11B7/258 ,  G11B7/2585 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

    Abstract: The present invention was made to improve the strength, such as heat resistance, of a disc comprising a biodegradable resin. The optical disc according to the present invention is formed by bonding two substrates, at least one of the substrates having an information recording area. One substrate disposed on a light incident side of the optical disc is composed of a biodegradable resin that is uncrystallized and allows light to transmit therethrough. Another substrate disposed away from the light incident side of the optical disc is composed of the biodegradable resin having higher crystallinity than that of the substrate disposed on a light incident side of the optical disc.

    Abstract translation: 本发明是为了提高包含可生物降解树脂的盘的强度，例如耐热性。 根据本发明的光盘通过粘合两个基板形成，至少一个基板具有信息记录区域。 设置在光盘的光入射侧的一个基板由未结晶的生物降解性树脂构成，并且允许光透过。 远离光盘的光入射侧设置的另一基板由具有比设置在光盘的光入射侧的基板的结晶度高的可生物降解性树脂构成。

    Multi-stack optical data storage medium and use of such medium
    7.
    发明申请
    Multi-stack optical data storage medium and use of such medium 失效
    多层光学数据存储介质和这种介质的使用

    公开(公告)号：US20050226128A1

    公开(公告)日：2005-10-13

    申请号：US10513049

    申请日：2003-04-11

    Applicant: Mark Van Schijndel ,  Guofu Zhou ,  Johannes Rijpers ,  Johannes Roosen ,  Antonius Kuiper

    Inventor： Mark Van Schijndel ,  Guofu Zhou ,  Johannes Rijpers ,  Johannes Roosen ,  Antonius Kuiper

    IPC: G11B7/24038 ,  G11B7/257 ,  G11B7/258 ,  G11B7/00

    CPC classification number: G11B7/257 ,  G11B7/00454 ,  G11B7/24038 ,  G11B7/258 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25711 ,  G11B2007/25713 ,  G11B2007/25715

    Abstract: A description is given of a multi-stack optical data storage medium (20) for rewritable recording using a focused radiation beam (30) entering through an entrance face (16) of the medium (20) during recording. The medium (20) has a substrate (1). Deposited on a side thereof is a first recording stack (2) with a phase-change type recording layer (6). The first recording stack (2) is present at a position most remote from the entrance face (16). At least one further recording stack (3), with a phase-change type recording layer (12) is present closer to the entrance face (16) than the first recording stack (2). A metal reflective layer of Cu, transparent for the radiation beam (30), is present in the further recording stack (3) and has a thickness between 2 and 10 nm. A transparent spacer layer (9) is present between the recording stacks (2, 3). In such a way a metal reflective layer (14) with a high optical transmission combined with sufficient heat sink action is achieved which furthermore has a low chemical reactivity with adjacent layers.

    Abstract translation: 给出了在记录期间使用聚焦辐射束（30）通过介质（20）的入射面（16）进入可重写记录的多层光学数据存储介质（20）的描述。 介质（20）具有基板（1）。 沉积在其一侧的是具有相变型记录层（6）的第一记录层（2）。 第一记录堆叠（2）存在于最远离入射面（16）的位置。 具有相变型记录层（12）的至少一个另外的记录堆叠（3）比第一记录堆叠（2）更靠近入口面（16）。 对于辐射束（30）透明的Cu的金属反射层存在于另外的记录叠层（3）中，并且具有2至10nm的厚度。 在记录叠层（2,3）之间存在透明间隔层（9）。 以这种方式，实现了具有与具有足够散热作用的高光学透射率的金属反射层（14），该金属反射层还具有与相邻层的低化学反应性。

    Optical information recording medium and method of manufacturing the same
    9.
    发明申请
    Optical information recording medium and method of manufacturing the same 失效
    光信息记录介质及其制造方法

    公开(公告)号：US20050196575A1

    公开(公告)日：2005-09-08

    申请号：US11071725

    申请日：2005-03-03

    Applicant: Eiji Kariyada

    Inventor： Eiji Kariyada

    IPC: G11B7/254 ,  G11B7/243 ,  G11B7/257 ,  G11B7/26 ,  B32B3/02

    CPC classification number: G11B7/257 ,  G11B7/243 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/25711 ,  Y10T428/21

    Abstract: An optical information recording medium includes an oxide/nitride dielectric film that shows a film forming rate higher than that of SiON film and hence is adapted to mass production. The recording medium shows little change in the reflectivity after a long environment test. A first dielectric layer made of ZnS—SiO2, an oxide/nitride dielectric layer made of silicon-nickel oxide/nitride, a second dielectric layer made of ZnS—SiO2, a first interface layer made of GeN, a recording layer made of Ge2Sb2Te5, a second interface layer made of GeN, a third dielectric layer made of ZnS—SiO2 and a reflection layer are laid sequentially on a transparent substrate in the above mentioned order. The oxide/nitride dielectric layer is formed by reactive sputtering in a mixed gas atmosphere containing Ar gas, O2 gas and N2 gas. The refractive index of the oxide/nitride dielectric layer is made lower than that of the first dielectric layer and that of the second dielectric layer and the light absorption coefficient of the recording layer is made lower in an amorphous state than in a crystalline state.

    Abstract translation: 光学信息记录介质包括氧化物/氮化物电介质膜，该氧化物/氮化物电介质膜的成膜速率高于SiON膜，因此适合批量生产。 在长时间的环境试验后，记录介质的反射率几乎没有变化。 由ZnS-SiO 2构成的第一电介质层，由硅 - 氧化镍/氮化物制成的氧化物/氮化物电介质层，由ZnS-SiO 2 ，由GeN制成的第一界面层，由Ge 2 Sb 2 Te 5制成的记录层，由GeN制成的第二界面层， 按照上述顺序将由ZnS-SiO 2 N制成的第三电介质层和反射层依次放置在透明基板上。 氧化物/氮化物电介质层通过反应性溅射在含有Ar气体，O 2气体和N 2气体的混合气体气氛中形成。 使得氧化物/氮化物电介质层的折射率低于第一电介质层的折射率，第二介电层的折射率和记录层的光吸收系数在非晶状态下比在结晶状态下低。

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