公开(公告)号：US07247417B2

公开(公告)日：2007-07-24

申请号：US10657205

申请日：2003-09-09

申请人： Narutoshi Fukuzawa ,  Takashi Horai ,  Hiroshi Take

发明人： Narutoshi Fukuzawa ,  Takashi Horai ,  Hiroshi Take

IPC分类号： G11B7/24

CPC分类号： G11B7/2472 ,  G11B7/24079 ,  G11B7/2531 ,  G11B7/2532 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/256 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716 ,  Y10S430/146

摘要： The present invention provides an optical recording medium that includes a recording layer composed mainly of an organic compound and can utilize blue-violet semiconductor laser light (390 to 420 nm in wavelength) as recording/reproducing laser light. The present invention also provides an optical recording/reproducing method using the optical recording medium. The optical recording medium 1 comprises at least a supporting substrate 2; a recording layer 3 on the supporting substrate 2, the recording layer 3 containing an organic compound as a major component; and a light-transmitting layer 5 on the recording layer 3, the light-transmitting layer 5 being capable of transmitting laser light with a wavelength of 390 to 420 nm for recording and reproducing information. The organic compound in the recording layer 3 includes a trimethine cyanine dye that has the minimum value nmin of its refractive index n (real part of the complex refractive index) within the range of 370 to 425 nm and has a refractive index n of 1.2 or lower with respect to the wavelength of the recording/reproducing laser light. The organic compound, when absorbing the laser light, melts or degrades to bring about a change in the refractive index, thereby effecting recording of the information.

摘要翻译： 本发明提供一种光记录介质，其包括主要由有机化合物组成的记录层，并且可以利用蓝紫色半导体激光（波长为390至420nm）作为记录/再现激光。 本发明还提供一种使用光记录介质的光记录/再现方法。 光记录介质1至少包括支撑基板2; 支撑基板2上的记录层3，含有有机化合物作为主要成分的记录层3; 以及在记录层3上的透光层5，透光层5能够传输波长为390至420nm的激光以用于记录和再现信息。 记录层3中的有机化合物包括其折射率n（复合折射率的实部）的最小值n min min在370〜425nm的范围内的三甲基菁染料，以及 折射率n相对于记录/再现激光的波长为1.2或更低。 有机化合物在吸收激光时会熔化或降解以引起折射率的变化，从而进行信息的记录。

公开(公告)号：US20070048486A1

公开(公告)日：2007-03-01

申请号：US11507537

申请日：2006-08-22

申请人： Masahiro Shinkai ,  Junji Tanabe ,  Shuji Tsukamoto ,  Takashi Horai ,  Hiroshi Take

发明人： Masahiro Shinkai ,  Junji Tanabe ,  Shuji Tsukamoto ,  Takashi Horai ,  Hiroshi Take

IPC分类号： B32B3/02

CPC分类号： G11B7/2492 ,  C09B67/0041 ,  C09B69/045 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/2495 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2536 ,  G11B7/256 ,  G11B7/259 ,  G11B2007/24612 ,  Y10T428/21

摘要： It is an object of the present invention to provide a dye material which can be employed in short-wavelength optical recording media, while being excellent in solubility to solvents. The dye material in accordance with a preferred embodiment of the present invention contains a cyanine compound and an azo compound. The cyanine compound contains at least a trimethinecyanine compound in which an aromatic structure including two nitrogen-containing heterocyclic rings is combined to a trimethine group. At least one of the nitrogen-containing heterocyclic rings includes a benzyl group which may have a substituent, while at least one of them includes an organic group having a carbon number of 2 to 30 substituted by a nitrogen atom. The azo compound contains at least a chelate compound of a compound containing an azo group and a metal.

摘要翻译： 本发明的目的是提供可用于短波长光记录介质中的染料，同时对溶剂的溶解性优异。 根据本发明优选实施方案的染料材料含有花青化合物和偶氮化合物。 花青化合物至少含有三甲基花青素化合物，其中包含两个含氮杂环的芳族结构与三甲基组合。 至少一个含氮杂环包括可以具有取代基的苄基，而其中至少一个包括被氮原子取代的碳数为2至30的有机基团。 偶氮化合物至少含有含有偶氮基和金属的化合物的螯合化合物。

公开(公告)号：US20050007942A1

公开(公告)日：2005-01-13

申请号：US10886591

申请日：2004-07-09

申请人： Takashi Horai ,  Yuichi Kawaguchi

发明人： Takashi Horai ,  Yuichi Kawaguchi

IPC分类号： G11B7/24 ,  G11B7/007 ,  G11B7/244 ,  G11B7/26 ,  G11B7/00

CPC分类号： G11B7/266 ,  G11B7/24076 ,  G11B7/261

摘要： The optical recording medium comprises a light-transmitting substrate 11 having a spiral groove 11a formed thereon and a recording layer 21 containing an organic dye wherein the average inclination angle θa of the wall of the groove 11a on the inward side thereof is greater than the average inclination angle θb of the wall of the groove on the outward side thereof. In this arrangement, when the recording layer 21 is formed by a spin coating method, the dispersion of the thickness of the recording layer 21 inside the groove 11a can be prevented, making it assured that the recording layer 21 can be provided with a desired thickness over an area inside the groove 11a ranging from the inward side thereof to the outward side thereof. As a result, heat of laser beam emitted during recording can be almost uniformly dissipated over the area inside the groove ranging from the inward side to the outward side thereof to eliminate the effect of thermal interference between marks, making it possible to secure a wide power margin during a high speed recording.

摘要翻译： 光记录介质包括其上形成有螺旋槽11a的透光基板11和包含有机染料的记录层21，其中槽11a的内侧的壁的平均倾斜角θa大于平均值 在其外侧的槽的壁的倾斜角度。 在这种布置中，当通过旋涂方法形成记录层21时，可以防止记录层21在凹槽11a内的厚度的分散，使得可以确保记录层21可以具有期望的厚度 在槽11a的内侧和外侧之间的区域内。 结果，在记录期间发射的激光束的热量可以几乎均匀地散发在从内侧到外侧的槽内的区域内，以消除标记之间的热干扰的影响，使得可以确保宽的功率 高速录制时的余量。

公开(公告)号：US20060046009A1

公开(公告)日：2006-03-02

申请号：US11204029

申请日：2005-08-16

申请人： Takashi Horai

发明人： Takashi Horai

IPC分类号： B32B3/02

CPC分类号： G11B7/2472 ,  G11B7/2467 ,  G11B7/248 ,  G11B7/2495 ,  G11B7/252 ,  G11B7/2531 ,  G11B7/2534 ,  G11B7/2535 ,  G11B7/2536 ,  G11B7/256 ,  G11B7/259 ,  G11B2007/24612 ,  Y10T428/21

摘要： An optical disk having excellent recording characteristics at both low speed and high speed is provided by modifying a cyanine dye serving as a material of a recording layer such that the cyanine dye does not excessively remain in a groove in an optically transparent substrate. The optical disc comprises the recording layer on a surface of the optically transparent substrate, a reflective layer on the recording layer, and a protective layer on the reflective layer, wherein the recording layer contains at least one cyanine dye expressed by the following chemical formula I: wherein, R1, R2 R3, R4, R5, and R6 are hydrocarbon groups, and A and B are independently a fused benzene ring or a fused naphthalene ring optionally having a substituent, and wherein the recording layer is formed by applying the at least one cyanine dye in a fluoroalcohol solvent to the optically transparent substrate.

摘要翻译： 通过改变用作记录层的材料的花青染料，使得花青染料不会过多地残留在光学透明基底的凹槽中，从而提供低速和高速两种记录特性优异的光盘。 光盘包括在光学透明基板的表面上的记录层，记录层上的反射层和反射层上的保护层，其中记录层含有至少一种由以下化学式I表示的花青染料 ：其中R 1，R 2，R 3，R 4，R 5，...， >和R 6是烃基，A和B独立地是稠合苯环或任选具有取代基的稠合萘环，并且其中记录层是通过将至少一种花青 在氟代醇溶剂中染色至光学透明基底。

公开(公告)号：US20060024615A1

公开(公告)日：2006-02-02

申请号：US11189792

申请日：2005-07-27

申请人： Takashi Horai ,  Hiroshi Take

发明人： Takashi Horai ,  Hiroshi Take

IPC分类号： G11B7/24

CPC分类号： G11B7/249 ,  G11B7/24035 ,  G11B7/246 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2492 ,  G11B7/2495 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/2575 ,  G11B2007/24612

摘要： An optical recording medium includes a recording layer containing a cyanine dye and a quencher and a light transmittance reducing section for reducing the transmission of ultraviolet rays to the recording layer, and the light transmittance reducing section is composed of at least one of a substrate and a function layer. When the component ratio of the quencher to the total number of moles of the cyanine dye and the quencher is shown by A and the transmittance of ultraviolet rays of the light transmittance reducing section is shown by B, the component ratio A and the transmittance B are defined to satisfy the following mathematical formulas (1) and (2). With this arrangement, the optical recording medium can execute recording at a high linear speed while securing sufficient light stability. 0.3≧A≧−(B+0.075)/1.25  (1) 0.3≧B≧0.05  (2)

摘要翻译： 光记录介质包括含有花青染料和猝灭剂的记录层和用于减少紫外线向记录层传播的透光率降低部分，并且透光率降低部分由基材和 功能层。 当猝灭剂与氰化染料和猝灭剂的总摩尔数的比例由A表示，透光率降低部分的紫外线的透射率用B表示时，成分比A和透射率B分别为 定义为满足以下数学式（1）和（2）。 利用这种布置，光学记录介质可以以高线速度执行记录，同时确保足够的光稳定性。 <？in-line-formula description =“In-line formula”end =“lead”？> 0.3> = A> = - （B + 0.075）/1.25（1）<？in-line-formula description =“In 线“公式”end =“tail”？> <？in-line-formula description =“In-line formula”end =“lead”？> 0.3> = B> = 0.05（2） description =“内联公式”end =“tail”？>

公开(公告)号：US06607824B2

公开(公告)日：2003-08-19

申请号：US10075459

申请日：2002-02-15

申请人： Takashi Horai ,  Hideki Sasaki ,  Hiroyuki Yamada

发明人： Takashi Horai ,  Hideki Sasaki ,  Hiroyuki Yamada

IPC分类号： G11B571

CPC分类号： G11B5/78 ,  G11B5/00 ,  G11B5/00817 ,  G11B5/71 ,  G11B5/738 ,  G11B2005/0016 ,  Y10T428/265

摘要： A novel magnetic read/write system, in which a fixed MR head serves to read magnetically recorded data from a magnetic recording medium as it operates at a relative speed of 2.0 to 5.0 m/s with respect to the magnetic recording medium comprising a non-magnetic support and a magnetic layer. A fatty acid ester represented by general formula (I): where R1 is a hydrocarbon having 4 or less carbons, and R2 is a straight chain hydrocarbon having 12 or more carbons, exists between a read element of the MR head and the magnetic layer. This magnetic read/write system exhibits improved adherence to heads, running durability, and wear resistance of the tape in low temperature conditions as well as at room temperature.

摘要翻译： 一种新颖的磁读/写系统，其中固定MR磁头用于从相对于包括非磁性磁记录介质的磁记录介质以相对速度2.0至5.0m / s的速度操作磁记录介质读取磁记录数据， 磁性支架和磁性层。 在MR头的读取元件和磁性层之间存在由通式（I）表示的脂肪酸酯：其中R 1是具有4个或更少个碳的烃，并且R 2是具有12个或更多个碳的直链烃。 该磁读/写系统在低温条件下以及在室温下表现出改善的头部粘附性，耐磨性和耐磨性。

公开(公告)号：US20050142490A1

公开(公告)日：2005-06-30

申请号：US11020154

申请日：2004-12-27

申请人： Masahiro Shinkai ,  Atsushi Monden ,  Junji Tanabe ,  Shuji Tsukamoto ,  Takashi Horai

发明人： Masahiro Shinkai ,  Atsushi Monden ,  Junji Tanabe ,  Shuji Tsukamoto ,  Takashi Horai

IPC分类号： B41M5/26 ,  G11B7/244 ,  G11B7/247 ,  G11B7/249 ,  G11B7/257 ,  G11B7/24

CPC分类号： G11B7/2495 ,  G11B7/24038 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2536 ,  G11B7/256 ,  G11B7/2575 ,  G11B7/259 ,  G11B2007/24612

摘要： An optical recording material used in an optical recording medium which can record information by light irradiation, this optical recording material containing a dye compound obtained by salt formation between a chelate compound formed by coordination between one metal and one or two compounds represented by the following general formula (1): where A and B are groups of atoms which may be identical or different, and which respectively form aromatic rings, and X1 and X2 are respectively functional groups having one or more active hydrogen atoms which may contain a substituent group, and a cation represented by the following general formula (2): where C is a group of atoms forming a benzene ring or naphthalene ring which may have a substituent group, R1 and R2 are respectively five-membered rings or six-membered rings which may have a substituent group, Y1 is a substituent group, Q3 is a nitrogen-containing heterocyclic ring which may have a condensed ring, p and q are respectively integers from 1 to 4, and n is an integer from 0 to 3.

摘要翻译： 在光记录介质中使用的光记录材料，其可以通过光照射记录信息，该光记录材料含有通过在由一种金属和一种或两种由下列一般化合物表示的化合物之间的配位形成的螯合化合物之间形成盐形成的染料化合物 式（1）：其中A和B是可以相同或不同的原子团，并且分别形成芳环，X 1和X 2分别是官能的 具有一个或多个可以含有取代基的活性氢原子的基团和由以下通式（2）表示的阳离子：其中C是可以具有取代基的苯环或萘环的原子团，R R 1和R 2分别是可以具有取代基的五元环或六元环，Y 1是取代基， Q 3是含氮杂环基 ng，其可以具有稠合环，p和q分别是1至4的整数，n是0至3的整数。

公开(公告)号：US06797374B2

公开(公告)日：2004-09-28

申请号：US10622740

申请日：2003-07-21

申请人： Takashi Horai ,  Hideki Sasaki ,  Hiroyuki Yamada

发明人： Takashi Horai ,  Hideki Sasaki ,  Hiroyuki Yamada

IPC分类号： G11B571

CPC分类号： G11B5/78 ,  G11B5/00 ,  G11B5/00817 ,  G11B5/71 ,  G11B5/738 ,  G11B2005/0016 ,  Y10T428/265

摘要： A novel magnetic read/write system, in which a fixed MR head serves to read magnetically recorded data from a magnetic recording medium as it operates at a relative speed of 2.0 to 5.0 m/s with respect to the magnetic recording medium comprising a non-magnetic support and a magnetic layer. A fatty acid ester represented by general formula (I): where R1 is a hydrocarbon having 4 or less carbons, and R2 is a straight-chain hydrocarbon having 12 or more carbons, exists between a read element of the MR head and the magnetic layer. This magnetic read/write system exhibits improved adherence to heads, running durability, and wear resistance of the tape in low temperature conditions as well as at room temperature.

摘要翻译： 一种新颖的磁读/写系统，其中固定MR磁头用于从相对于包括非磁性磁记录介质的磁记录介质以相对速度2.0至5.0m / s的速度操作磁记录介质读取磁记录数据， 磁性支架和磁性层。 由通式（I）表示的脂肪酸酯：其中R 1是具有4个或更少个碳的烃，并且R 2是具有12个或更多个碳的直链烃，存在于 磁头和磁性层。 该磁读/写系统在低温条件下以及在室温下表现出改善的头部粘附性，耐磨性和耐磨性。