公开(公告)号：US09135941B2

公开(公告)日：2015-09-15

申请号：US13139194

申请日：2009-12-14

Applicant: Hidenori Somei ,  Takeo Tsuzuki ,  Takuo Kodaira ,  Daizo Yokoyama

Inventor： Hidenori Somei ,  Takeo Tsuzuki ,  Takuo Kodaira ,  Daizo Yokoyama

IPC: G11B7/24 ,  G11B7/2492 ,  C09B29/036 ,  C09B29/36 ,  C09B45/18 ,  C09B45/20 ,  C09B45/22 ,  G11B7/2467 ,  G11B7/246 ,  G11B7/249

CPC classification number: G11B7/2492 ,  C09B29/004 ,  C09B29/3678 ,  C09B45/18 ,  C09B45/20 ,  C09B45/22 ,  G11B7/2467 ,  G11B2007/24606 ,  G11B2007/24905

Abstract: Provided is an optical information recording medium employing an In-Groove recording system, and having a preferable recording characteristic with a high modulation degree and low jitter characteristics. The medium is comprised of a circular-disk shaped substrate 2 having a through hole at a center portion thereof and a helical guide groove 3 on one surface thereof; a reflective layer 4 formed on the guide groove 3 of the substrate 2; a recording layer 5 formed on the reflective layer 4 and composed of an organic material including a dye; a protection layer 6 provided on the recording layer 5; and a light-transmissive layer 7 formed on the protection layer 6. The recording layer 5 includes an organic dye which is an azo metal complex compound having a structure represented by (Chemical formula 1) and a functional group represented by (Chemical formula 2).

Abstract translation: 提供一种使用槽内记录系统的光信息记录介质，具有高调制度和低抖动特性的优选记录特性。 该介质包括在其中心部分具有通孔的圆盘形基底2和在其一个表面上的螺旋形导槽3; 形成在基板2的引导槽3上的反射层4; 形成在反射层4上并由包含染料的有机材料构成的记录层5; 设置在记录层5上的保护层6; 和形成在保护层6上的透光层7.记录层5包括具有由（化学式1）表示的结构和由（化学式2）表示的官能团的偶氮金属络合物的有机染料， 。

公开(公告)号：US20110129635A1

公开(公告)日：2011-06-02

申请号：US13054918

申请日：2009-07-24

Applicant: Takuo Kodaira ,  Takeo Tsuzuki

Inventor： Takuo Kodaira ,  Takeo Tsuzuki

IPC: G11B7/246 ,  C09B45/00

CPC classification number: C07D405/12 ,  C07D417/12 ,  C09B29/3678 ,  C09B45/18 ,  C09B45/20 ,  C09B45/22 ,  C09B45/34 ,  G11B7/2467 ,  G11B7/2492

Abstract: Disclosed is an optical information recording medium whose recording method is In-Groove recording, wherein such optical information recording medium offers good recording characteristics associated with high modulation degree and low jitter characteristics. This optical information recording medium includes: a disc-shaped substrate 2 having a through hole at the center and a guide groove 3 formed helically on one side; a reflective layer 4 formed on top of the aforementioned guide grooves 3 on the aforementioned substrate 2; a recording layer 5 formed on top of the aforementioned reflective layer 4 and made of an organic substance containing dye; a protective layer 6 formed on top of the aforementioned recording layer 5; and a light transmissive layer 6 formed on top of the aforementioned protective layer 6. The recording layer 5 contains an organic dye having a structure expressed by (Chemical Formula 1) and a functional group expressed by (Chemical Formula 2).

Abstract translation: 公开了一种其记录方法为凹槽内记录的光学信息记录介质，其中这种光学信息记录介质具有与高调制度和低抖动特性相关的良好的记录特性。 该光信息记录介质包括：在中心具有通孔的圆盘状基板2和在一侧上螺旋形成的引导槽3; 形成在上述基板2上的上述引导槽3的上方的反射层4; 形成在上述反射层4的顶部并由含有染料的有机物构成的记录层5; 形成在上述记录层5顶部的保护层6; 和形成在上述保护层6的顶部的透光层6.记录层5含有具有由（化学式1）表示的结构和由（化学式2）表示的官能团的有机染料。

公开(公告)号：US08993086B2

公开(公告)日：2015-03-31

申请号：US14001158

申请日：2012-02-09

Applicant: Takuo Kodaira ,  Isao Matsuda ,  Eiji Yamada

Inventor： Takuo Kodaira ,  Isao Matsuda ,  Eiji Yamada

IPC: G11B7/24 ,  G11B7/2467 ,  G11B7/24035 ,  G11B7/249

CPC classification number: G11B7/2467 ,  G11B7/24035 ,  G11B7/249 ,  Y10T428/21 ,  Y10T428/3154

Abstract: A recordable optical recording medium is provided enabling reliably preventing the deterioration of the recording characteristics, even when stored for a long period of time in an environment of high temperature and humidity. A recordable optical recording medium includes a substrate, and on the substrate, a reflective layer, a recording layer, a protective layer, a light transmission layer in a single layer structure having optical transparency, and a hard coat layer. The recording layer is formed by addition of an additive which functions as reducing agent to an azo metal complex dye having a triazole structure.

Abstract translation: 即使在高温，高湿的环境中长时间存放的情况下，也能够可靠地防止记录特性的劣化。 可记录光学记录介质包括基板，并且在基板上具有反射层，记录层，保护层，具有光学透明度的单层结构的光透射层和硬涂层。 通过添加作为还原剂的添加剂形成到具有三唑结构的偶氮金属络合染料中来形成记录层。

公开(公告)号：US20140030550A1

公开(公告)日：2014-01-30

申请号：US14001153

申请日：2012-02-09

Applicant: Takuo Kodaira ,  Isao Matsuda

Inventor： Takuo Kodaira ,  Isao Matsuda

IPC: G11B7/2467

CPC classification number: G11B7/2467 ,  C09B45/18 ,  C09B45/20 ,  C09B45/22 ,  G11B7/24056 ,  G11B7/249 ,  Y10T428/21

Abstract: A recordable optical recording medium is provided enabling the light transmission layer to be a single layer, the inhibition of peeling of the recording layer even when stored in high-temperature/high-moisture conditions, and the reduction of degradation of the recording/reproduction characteristics. A recordable optical recording medium provided with a substrate, and, on the substrate in the following order, a reflective layer, a recording layer, a protective layer, and a light transmission layer. The optical recording medium has the recording layer formed thereon using an organic dye obtained by adding a highly waterproof, low hydrophilic organic dye to a triazole-based azo metal complex dye.

Abstract translation: 提供了可记录光学记录介质，使得光透射层成为单层，即使在高温/高湿度条件下储存时也抑制了记录层的剥离，并且降低了记录/再现特性 。 具有基板的可记录光学记录介质，并且在基板上依次具有反射层，记录层，保护层和光透射层。 光记录介质具有使用通过向三唑基偶氮金属络合物染料添加高度防水的低亲水性有机染料而获得的有机染料形成在其上的记录层。

公开(公告)号：US20080260984A1

公开(公告)日：2008-10-23

申请号：US12051627

申请日：2008-03-19

Applicant: Takuo Kodaira ,  Isao Matsuda ,  Takeshi Otsu ,  Fumi Hara

Inventor： Takuo Kodaira ,  Isao Matsuda ,  Takeshi Otsu ,  Fumi Hara

IPC: B32B3/02 ,  B32B37/00

CPC classification number: G11B7/246 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2492 ,  G11B7/259 ,  Y10T428/21

Abstract: In a write-once optical information recording medium including a substrate, a groove-shaped track such as a guiding groove, and an optical recording layer containing an organic dye material and disposed on the guiding groove, wherein information is recorded by irradiating a short-wavelength laser beam from a surface of the optical recording layer opposite the substrate, and the information can be reproduced by reading a change in the reflected light of a short-wavelength laser beam after the information recording, an unrecorded portion of the optical recording layer has a lower reflectance than a pit portion formed after recording to a portion of the optical recording layer, the optical recording layer has a refractive index n in the range of about 1.2 to about 2.1 before recording and an extinction coefficient k in the range of about 0.01 to about 0.7 before recording, and n+k is in the range of about 1.4 to about 2.1.

Abstract translation: 在包括基板，诸如引导槽的凹槽形轨迹和包含有机染料材料并且设置在引导槽上的光学记录层的一次写入光信息记录介质中，其中通过照射短路来记录信息， 可以通过读取信息记录后的短波长激光束的反射光的变化来重现信息，光记录层的未记录部分具有 比在记录到光记录层的一部分之后形成的凹坑部分更低的反射率，光记录层在记录之前的折射率n在约1.2至约2.1的范围内，并且消光系数k在约0.01的范围内 在记录之前为约0.7，并且n + k在约1.4至约2.1的范围内。

公开(公告)号：US20080008850A1

公开(公告)日：2008-01-10

申请号：US11775333

申请日：2007-07-10

Applicant: Takuo KODAIRA ,  Akio AMANO

Inventor： Takuo KODAIRA ,  Akio AMANO

IPC: B32B3/02

CPC classification number: G11B7/247 ,  G11B7/2472 ,  G11B7/2495 ,  G11B7/2498 ,  G11B7/2534 ,  G11B7/254 ,  G11B7/256 ,  G11B7/259

Abstract: A uniform thin film can be formed simply through coating by using a spin-coating method, and a satisfactory optical property (high refractive index) is obtained by using a dye material (a dye composition containing a mono(aza)methine dye and a basic compound) capable of forming an H-aggregate. The mono(aza)methine dye and the basic compound, which exhibit good solubility, are used as the dye material, and thereby, a solvent that does not corrode a substrate can be employed. Consequently, an optical recording layer composed of a thin film that has formed an H-aggregate is provided, a dye thin film exhibiting a large difference in refractive index between before and after the recording can be used, wherein the decomposition of the dye is an endothermic reaction, and application on a substrate can be performed by a spin-coating method.

Abstract translation: 可以通过使用旋涂法简单地通过涂布形成均匀的薄膜，并且通过使用染料（含有单（氮杂）次甲基染料和碱性的（aza）次甲基染料）的染料组合物获得令人满意的光学性能（高折射率） 化合物）能够形成H-聚集体。 使用表现出良好溶解性的单（氮杂）次甲基染料和碱性化合物作为染料材料，从而可以使用不腐蚀基材的溶剂。 因此，提供了由形成H型聚集体的薄膜构成的光学记录层，可以使用在记录之前和之后表现出大的折射率差的染料薄膜，其中染料的分解是 吸热反应和在基材上的涂布可以通过旋涂法进行。

公开(公告)号：US20110244164A1

公开(公告)日：2011-10-06

申请号：US13139194

申请日：2009-12-14

Applicant: Hidenori Somei ,  Takeo Tsuzuki ,  Takuo Kodaira ,  Daizo Yokoyama

Inventor： Hidenori Somei ,  Takeo Tsuzuki ,  Takuo Kodaira ,  Daizo Yokoyama

IPC: G11B7/246 ,  G11B7/24 ,  C09B45/00

CPC classification number: G11B7/2492 ,  C09B29/004 ,  C09B29/3678 ,  C09B45/18 ,  C09B45/20 ,  C09B45/22 ,  G11B7/2467 ,  G11B2007/24606 ,  G11B2007/24905

Abstract: Provided is an optical information recording medium employing an In-Groove recording system, and having a preferable recording characteristic with a high modulation degree and low jitter characteristics. The medium is comprised of a circular-disk shaped substrate 2 having a through hole at a center portion thereof and a spiral guide groove 3 on one surface thereof; a reflective layer 4 formed on the guide groove 3 of the substrate 2; a recording layer 5 formed on the reflective layer 4 and composed of an organic material including a dye; a protection layer 6 provided on the recording layer 5; and a light-transmissive layer 6 formed on the protection layer 6. The recording layer 5 includes an organic dye which is an azo metal complex compound having a structure represented by (Chemical formula 1) and a functional group represented by (Chemical formula 2).

Abstract translation: 提供一种使用槽内记录系统的光信息记录介质，具有高调制度和低抖动特性的优选记录特性。 该介质由在其中心部分具有通孔的圆盘状基板2和在其一个表面上的螺旋形引导槽3构成; 形成在基板2的引导槽3上的反射层4; 形成在反射层4上并由包含染料的有机材料构成的记录层5; 设置在记录层5上的保护层6; 和形成在保护层6上的透光层6.记录层5包括有机染料，它是具有由（化学式1）表示的结构和由（化学式2）表示的官能团的偶氮金属络合物， 。

公开(公告)号：US20080118698A1

公开(公告)日：2008-05-22

申请号：US11940258

申请日：2007-11-14

Applicant: Takeshi OTSU ,  Akimasa MIYATA ,  Motomitsu HAGIWARA ,  Isao MATSUDA ,  Fumi HARA ,  Shingo KATO ,  Takuo KODAIRA

Inventor： Takeshi OTSU ,  Akimasa MIYATA ,  Motomitsu HAGIWARA ,  Isao MATSUDA ,  Fumi HARA ,  Shingo KATO ,  Takuo KODAIRA

IPC: G11B7/24

CPC classification number: G11B7/2575 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2531 ,  G11B7/2532 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2585 ,  G11B7/259 ,  Y10T428/21

Abstract: An optical information recording medium is provided having a superior jitter property even when an organic substance is used for a recording layer. The optical information recording medium has a substrate having a penetrating hole in a central portion thereof and a spiral pre-groove provided in one surface of the substrate, a reflection layer provided on the surface of the substrate in which the pre-groove is provided, a recording layer which is provided on the reflection layer and which is composed of an organic substance including a dye, and a light transmissive cover layer provided on the recording layer. In the optical information recording medium, the cover layer has an elastic modulus of 40 MPa or less at 25° C. in an interface region facing the recording layer.

Abstract translation: 即使当将有机物质用于记录层时，提供了具有优异的抖动特性的光学信息记录介质。 光学信息记录介质具有在其中心部分具有贯通孔的基板和设置在基板的一个表面中的螺旋预制槽，设置在其中设置预凹槽的基板的表面上的反射层， 设置在反射层上并由包括染料的有机物质构成的记录层和设置在记录层上的透光覆盖层。 在光学信息记录介质中，覆盖层在面向记录层的界面区域中在25℃下的弹性模量为40MPa以下。

公开(公告)号：US20060114804A1

公开(公告)日：2006-06-01

申请号：US11268851

申请日：2005-11-08

Applicant: Mamoru Uchida ,  Isao Okitsu ,  Takuo Kodaira

Inventor： Mamoru Uchida ,  Isao Okitsu ,  Takuo Kodaira

IPC: G11B7/24

CPC classification number: G11B7/249 ,  C09B45/00 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/2575 ,  G11B7/259

Abstract: An optical information recording medium includes: a substrate having a pre-groove formed thereon; an optical recording layer containing a dye; and a light reflecting layer. The medium has a ratio of a modulation degree at a maximum recording speed to a modulation degree at a minimum recording speed, which is from 1.1 to 1.7.

Abstract translation: 光学信息记录介质包括：具有形成在其上的预制槽的基板; 含有染料的光学记录层; 和光反射层。 介质具有在最大记录速度下的调制度与最低记录速度的调制度之比，其为1.1至1.7。

公开(公告)号：US20130344350A1

公开(公告)日：2013-12-26

申请号：US14001160

申请日：2012-02-09

Applicant: Takuo Kodaira

Inventor： Takuo Kodaira

IPC: G11B7/2467

CPC classification number: G11B7/2467 ,  G11B7/24035 ,  G11B7/24056 ,  G11B7/249

Abstract: A low-cost recordable optical recording medium is provided having a single-layered light transmission layer, and a recording layer containing an organic dye, the recordable optical recording medium showing a little asymmetry in the reproduction signal, and being capable of recording/reproducing data with light having a wavelength of 300 nm to 500 nm. A recordable optical recording medium including a substrate on which a reflective layer, a recording layer containing an organic dye, a protective layer, and a single-layered light transmission layer are laminated in the stated order, the recording layer being formed of the organic dye having a decomposition starting temperature of 240° C. or less.

Abstract translation: 提供了具有单层光透射层和含有有机染料的记录层的低成本可记录光学记录介质，该可记录光学记录介质在再现信号中显示出一些不对称性，并且能够记录/再现数据 具有波长为300nm至500nm的光。 一种可记录光学记录介质，其特征在于，包括基板，按照所述顺序层叠反射层，含有有机染料的记录层，保护层和单层透光层，记录层由有机染料 分解开始温度为240℃以下。