公开(公告)号：US08018822B2

公开(公告)日：2011-09-13

申请号：US11871361

申请日：2007-10-12

Applicant: Takeshi Otsu ,  Fumi Hara ,  Shinichi Kojo ,  Atsuo Shimizu ,  Motomitsu Hagiwara

Inventor： Takeshi Otsu ,  Fumi Hara ,  Shinichi Kojo ,  Atsuo Shimizu ,  Motomitsu Hagiwara

IPC: G11B7/24

CPC classification number: G11B7/24079 ,  G11B7/00736

Abstract: An optical information recording medium includes an optical disk body including a light-transmitting substrate, a recording layer provided on a main surface of the light-transmitting substrate over a region in which pre-grooves are formed and a portion of a region in which dummy grooves are formed, and a reflecting layer provided over the recording layer and a region of the light-transmitting substrate in which the recording layer is not provided; and an ink receiving layer provided on the label surface side of the optical disc body. The dummy grooves provided in at least a portion of the region in which the dye material is not applied have a pitch larger than that of the pre-grooves, are shallower than that of the pre-grooves, or have half-width less than that of the pre-grooves.

Abstract translation: 光学信息记录介质包括光盘体，该光盘体包括透光性基板，在形成预凹槽的区域上设置在透光性基板的主面上的记录层， 形成凹槽，设置在记录层上的反射层和不设置记录层的透光基板的区域; 以及设置在光盘体的标签表面侧的墨接受层。 设置在不施加染料材料的区域的至少一部分中的虚拟槽具有比预槽宽的间距，比预槽宽的间距，比半槽宽小 的预槽。

公开(公告)号：US20090092783A1

公开(公告)日：2009-04-09

申请号：US12243922

申请日：2008-10-01

Applicant: Fumi HARA ,  Takeshi OTSU ,  Isao MATSUDA ,  Shingo KATOH ,  Masashi SATOH

Inventor： Fumi HARA ,  Takeshi OTSU ,  Isao MATSUDA ,  Shingo KATOH ,  Masashi SATOH

IPC: B32B3/02 ,  C23C14/00

CPC classification number: G11B7/266 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2492 ,  G11B7/2495 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/25715 ,  Y10T428/21

Abstract: An optical information recording medium has a substrate, and an optical reflection layer, an optical recording layer containing an organic dye, an interlayer, and a cover layer formed in this order on the substrate. The interlayer contains a sputtered Nb2O5—Al203-based composite oxide having an Nb2O5 content of more than 50 mol % and less than 60 mol %.

Abstract translation: 光学信息记录介质具有基板，光反射层，含有有机染料的光学记录层，中间层和覆盖层，依次形成在基板上。 中间层含有Nb 2 O 5含量超过50摩尔％且小于60摩尔％的溅射Nb 2 O 5 -Al 2 O 3复合氧化物。

公开(公告)号：US07498070B2

公开(公告)日：2009-03-03

申请号：US11225335

申请日：2005-09-13

Applicant: Sachiko Ishibashi ,  Fumi Hara ,  Toru Fujii ,  Yuji Arai

Inventor： Sachiko Ishibashi ,  Fumi Hara ,  Toru Fujii ,  Yuji Arai

IPC: B32B3/02

CPC classification number: G11B7/246 ,  G11B7/24038 ,  G11B7/2472 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/256 ,  G11B7/259 ,  G11B2007/2571 ,  G11B2007/25715 ,  Y10T428/21

Abstract: For improving the humidity resistance reliability and the jitter property of an optical disk, the adhesive layer used for bonding a bonding type optical information recording medium is defined such that the glass transition temperature is 100° C. or higher at 200° C. or lower, the modulus of elasticity at 25 to 80° C. is 1000 MPa or more, the adhesion strength thereof is 4 N or more, the reflective layer is defined such that the hardness is 60 mgf/μm2 or more as the nano indentation hardness, and the dye recording layer is defined such that the water solubility of the dye as light absorption is 0.2 or less.

Abstract translation: 为了提高耐光可靠性和光盘的抖动特性，将粘合型光信息记录媒体的粘合剂层定义为在200℃以下的玻璃化转变温度为100℃以上 在25〜80℃下的弹性模量为1000MPa以上，粘合强度为4N以上，反射层的定义为使纳米压痕硬度为60mgf / m 2以上， 并且染料记录层被定义为使得染料作为光吸收的水溶性为0.2以下。

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：US20080198731A1

公开(公告)日：2008-08-21

申请号：US12028723

申请日：2008-02-08

Applicant: Isao Matsuda ,  Fumi Hara ,  Takeshi Otsu ,  Motomitsu Hagiwara ,  Akimasa Miyata

Inventor： Isao Matsuda ,  Fumi Hara ,  Takeshi Otsu ,  Motomitsu Hagiwara ,  Akimasa Miyata

IPC: G11B7/24

CPC classification number: G11B7/24079 ,  G11B7/0053 ,  G11B7/00736

Abstract: An optical information recording medium having a disk-shaped substrate formed with spiral grooves on one main surface, and having an optical reflection layer formed with grooves at the surface corresponding to the grooves of the substrate for reflecting a laser beam, an optical recording layer, a protective layer, and an optical transparency layer in this order on the main surface thereof. The optical information recording medium has a main information area and a sub-information area to the inner circumferential side thereof, in which the track pitch TrB of the grooves in the sub-information area is about 0.32 μm or less, and the depth D of the grooves and the half-band width W of the grooves satisfy a relation represented by: W≧2D+70, whereby the difference between the reflectivity at the land surface and the reflectivity at the groove surface in the sub-information area can be restricted to less than 30%, thereby preventing occurrence of mis-decipherment for BCA marks.

Abstract translation: 一种光学信息记录介质，其具有在一个主表面上形成有螺旋槽的盘状基板，并且具有在与用于反射激光束的基板的凹槽对应的表面处形成有凹槽的光反射层，光学记录层， 保护层，透光性层等。 光信息记录介质具有其内周侧的主信息区域和子信息区域，其中子信息区域中的凹槽的轨道间距TrB为约0.32μm或更小，并且深度D为 沟槽和半带宽度W满足以下关系：W> = 2D + 70，由此在台面上的反射率与子信息区域中的槽表面的反射率之间的差可以是 限制在30％以下，从而防止BCA标记发生错误解密。

公开(公告)号：US20060164965A1

公开(公告)日：2006-07-27

申请号：US10526162

申请日：2003-08-14

Applicant: Isao Matsuda ,  Fumi Hara ,  Soichi Horikoshi

Inventor： Isao Matsuda ,  Fumi Hara ,  Soichi Horikoshi

IPC: G11B7/24

CPC classification number: G11B7/24085 ,  G11B7/00745 ,  G11B7/24082

Abstract: It is an object to provide optical information recording media enabling the recording at high speeds and high densities, such as onto DVD-R discs or similar, of optical information, optimizing the shape of meandering land pre-pits 21, increasing clearness of diffraction of laser light 9 by the land pre-pits 21 to obtain a satisfactory land pre-pit signal, and simultaneously reducing RF readout errors for recorded pits and readout errors for land pre-pits 21, focusing on optimization of the size of the inside protruding portion 23 and outside protruding portion 25 relative to the spot 9S of the laser light 9 with respect to the shape and size of the land pre-pits 21, and when e is the base of natural logarithms, the media is characterized in that the inside edge portions 22 of the inside protruding portion 23 and the outside edge portions 24 of the outside protruding portion 25 of the land pre-pits 21 are positioned within the range of the spot diameter E2 in the 1/e2 portion of the Gaussian energy distribution of the spot 9S of laser light 9. Further, with respect to the distance Lin between the two inside edge portions 22 of the inside protruding portion 23 of the land pre-pits 21, the distance Lout between the two outside edge portions 24 of the outside protruding portion 25 of the land pre-pits 21, and the basic length T expressing the lengths of recorded pits, the media is further characterized in that the distances Lin and Lout are in the range 3 T to 6 T; that 0.40 μm≦Lin≦0.80 μm and 0.40 μm≦Lout≦0.80 μm; and that, when the inside protruding length in the radial direction on the inside of the arc shape of land pre-pits 8 is Rin and the outside protruding length is Rout, 0.120 μm≦Rin

公开(公告)号：US20060077868A1

公开(公告)日：2006-04-13

申请号：US11225335

申请日：2005-09-13

Applicant: Sachiko Ishibashi ,  Fumi Hara ,  Toru Fujii ,  Yuji Arai

Inventor： Sachiko Ishibashi ,  Fumi Hara ,  Toru Fujii ,  Yuji Arai

IPC: G11B7/24

CPC classification number: G11B7/246 ,  G11B7/24038 ,  G11B7/2472 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/256 ,  G11B7/259 ,  G11B2007/2571 ,  G11B2007/25715 ,  Y10T428/21

Abstract: For improving the humidity resistance reliability and the jitter property of an optical disk, the adhesive layer used for bonding a bonding type optical information recording medium is defined such that the glass transition temperature is 100° C. or higher at 200° C. or lower, the modulus of elasticity at 25 to 80° C. is 1000 MPa or more, the adhesion strength thereof is 4N or more, the reflective layer is defined such that the hardness is 60 mgf/μm2 or more as the nano indentation hardness, and the dye recording layer is defined such that the water solubility of the dye as light absorption is 0.2 or less.

Abstract translation: 为了提高耐光可靠性和光盘的抖动特性，将粘合型光信息记录媒体的粘合剂层定义为在200℃以下的玻璃化转变温度为100℃以上 25〜80℃下的弹性模量为1000MPa以上，粘合强度为4N以上，反射层的厚度为60mgf / m 2以上， 更多地作为纳米压痕硬度，并且染料记录层被定义为使得染料作为光吸收的水溶性为0.2以下。

公开(公告)号：US20060068153A1

公开(公告)日：2006-03-30

申请号：US11238313

申请日：2005-09-29

Applicant: Fumi Hara ,  Sachiko Ishibashi ,  Masashi Satoh ,  Toru Fujii ,  Yuji Arai

Inventor： Fumi Hara ,  Sachiko Ishibashi ,  Masashi Satoh ,  Toru Fujii ,  Yuji Arai

IPC: B32B3/02

CPC classification number: G11B7/258 ,  G11B7/24038 ,  G11B7/246 ,  G11B7/2534 ,  G11B7/256 ,  Y10T428/21

Abstract: For improving the jitter property and ensuring the high reliability of an optical disk, a metal film containing phosphorus is disposed in a reflective layer. The layer has a hardness of 60 mgf/μm2 or more as nano indentation hardness, and an adhesive layer used for bonding has a glass transition temperature of 100° C. or higher but 200° C. or lower, an elastic modulus at 25 to 80° C. of 1000 MPa or more, and an adhesion strength of 4N or more. The dye for the dye recording layer has a water solubility of 20% or less as measured as light absorbance of hot water in which the dye recording layer is soaked.

Abstract translation: 为了改善抖动特性并确保光盘的高可靠性，将含有磷的金属膜设置在反射层中。 该层的硬度为60mgf / m 2以上，作为纳米压痕硬度，用于粘合的粘合剂层的玻璃化转变温度为100℃以上且200℃以下，或 在25〜80℃下的弹性模量为1000MPa以上，粘合强度为4N以上。 用于染料记录层的染料的水溶性为20％以下，以染料记录层浸渍的热水的吸光度测定。

公开(公告)号：US08014262B2

公开(公告)日：2011-09-06

申请号：US12104078

申请日：2008-04-16

Applicant: Fumi Hara ,  Takeshi Otsu ,  Masashi Satoh ,  Shingo Katoh ,  Isao Matsuda

Inventor： Fumi Hara ,  Takeshi Otsu ,  Masashi Satoh ,  Shingo Katoh ,  Isao Matsuda

IPC: G11B3/70

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

Abstract: An optical information recording medium includes a substrate having a through-hole provided at the central portion thereof and a guiding groove provided on a surface at the light-incident side; a reflective layer provided on the surface of the substrate having the guiding groove; a recording layer provided on the reflective layer and made of an organic substance containing a dye; and a light-transmissive cover layer provided on the recording layer, wherein the cover layer is made of a curable resin, and a modulus of elasticity of at least a portion of the cover layer facing the recording layer is in the range of about 34 MPa to about 96 MPa at 25° C.

Abstract translation: 光学信息记录介质包括具有设置在其中心部分处的通孔的基板和设置在光入射侧的表面上的引导槽; 设置在具有引导槽的基板的表面上的反射层; 设置在反射层上并由含有染料的有机物质制成的记录层; 以及设置在所述记录层上的透光性覆盖层，其中所述覆盖层由可固化树脂制成，并且所述覆盖层的面向所述记录层的至少一部分的弹性模量在约34MPa的范围内 在25℃下达到约96MPa

公开(公告)号：US07981494B2

公开(公告)日：2011-07-19

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

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。