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公开(公告)号：JP2003248934A
公开(公告)日：2003-09-05
申请号：JP2002046487
申请日：2002-02-22
Applicant: SONY CORP
Inventor： KUROKAWA KOTARO , YAMAZAKI TAKESHI , YUKIMOTO TOMOMI , YAMAMOTO MASANOBU , UEDA DAISUKE
IPC: G11B7/0055 , G11B7/242 , G11B7/26 , G11B7/24
Abstract: PROBLEM TO BE SOLVED: To provide a method for initializing an optical recording medium, cable of reducing the unevenness in the initialization due to optical interference generated in the initialization, without deteriorating the information recording/ reproducing signal characteristic of a recording layer, in the recording medium having a plurality of optical recording layers. SOLUTION: In initializing the optical recording medium in which at least a first optical recording layer 16 and a second of optical recording layer 12 are stacked on a substrate 11 from the irradiation side with light through an intermediate layer 17, the material constituting the intermediate layer 17 has sufficient transmittance for the wavelength of recording/reproducing light LTR for the optical recording medium, and includes absorbance for the wavelength of initialization light LTI. In the process in which the initialization is performed by irradiating the first optical recording layer 16 with the initialization light LTI, the initialization is performed using a laser beam, as the initialization light, having a wavelength in the range of from 200 nm to 400 nm. COPYRIGHT: (C)2003,JPO
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22.发明专利
公开(公告)号：JP2014038682A
公开(公告)日：2014-02-27
申请号：JP2012181913
申请日：2012-08-20
Inventor： UEDA DAISUKE , SAKAMOTO TETSUHIRO
IPC: G11B7/24 , G11B7/24035 , G11B7/24038 , G11B7/254 , G11B7/257 , G11B7/26
Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium that can increase capacity by enlarging a signal area, and a method of producing the optical recording medium.SOLUTION: An optical recording medium includes a substrate, an information layer, and a light transmission layer. A signal area, where the information layer is irradiated with light through the light transmission layer to record and/or reproduce an information signal, extends to a position away by 1.0 mm or more and less than 1.5 mm from the outer peripheral end of the optical recording medium.
Abstract translation: 要解决的问题：提供可以通过扩大信号区域来增加容量的光记录介质以及制造光记录介质的方法。解决方案：光记录介质包括基板，信息层和光透射层 。 通过光传输层用光照射信息层以记录和/或再现信息信号的信号区域延伸到距光学器件的外周端远离1.0mm以上且小于1.5mm的位置 记录介质。
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公开(公告)号：JP2013242939A
公开(公告)日：2013-12-05
申请号：JP2012115944
申请日：2012-05-21
Inventor： OTA AKIRA , OYAMADA MITSUAKI , TAKAYANAGI KENJI , UEDA DAISUKE , IWAMURA TAKASHI
IPC: G11B7/244 , B41M5/26 , G11B7/24035
Abstract: PROBLEM TO BE SOLVED: To provide a recording layer which can improve the recording density and can also exploit the effect of an additive for improving the recording sensitivity, and an optical information recording medium including the same.SOLUTION: An optical information recording medium includes a recording layer that foams by absorption of light and can form a cavity as a recording mark. The recording layer includes cellulose nitrate and an additive that absorbs light to generate heat.
Abstract translation: 要解决的问题：提供能够提高记录密度并且还可以利用添加剂用于提高记录灵敏度的效果的记录层，以及包括其的光学信息记录介质。解决方案：光学信息记录介质包括 记录层，其通过吸收光而发泡，并且可以形成作为记录标记的空腔。 记录层包括硝酸纤维素和吸收光以产生热量的添加剂。
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公开(公告)号：JP2013222492A
公开(公告)日：2013-10-28
申请号：JP2012095263
申请日：2012-04-19
Inventor： UEDA DAISUKE
Abstract: PROBLEM TO BE SOLVED: To attain a reproduction technique by which signal reproduction can be executed with an excellent SNR even when a reflectance difference between a formed part and a non-formed part of a recording mark is low.SOLUTION: For example, p-polarized light and s-polarized light are radiated on a recording layer of an optical recording medium so that respective radiation spots have a preceding-succeeding relationship, the p-polarized light and the s-polarized light having passed via the recording layer are overlapped, and the overlapped light is received via a polarizing plate. When, for example, one of the p-polarized light and s-polarized light is positioned on a mark, and the other is positioned at a non-formed part of the mark, an optical path difference (phase difference) is generated between the p-polarized light and the s-polarized light, so that a polarization direction of the overlapped light varies. On the other hand, when both of the p-polarized light and the s-polarized light are positioned on the formed part or the non-formed part of the mark, the polarization direction does not vary. Such variation in the polarization direction is detected as change in reception light amount by the polarizing plate so as to enable signal reproduction.
Abstract translation: 要解决的问题：为了获得即使在记录标记的形成部分和非形成部分之间的反射率差低的情况下也可以以优异的SNR执行信号再现的再现技术。解决方案：例如， 偏振光和s偏振光被照射在光学记录介质的记录层上，使得各个辐射点具有前后关系，经过记录层的p偏振光和s偏振光重叠， 并且经由偏振片接收重叠的光。 当例如p偏振光和s偏振光中的一个位于标记上并且另一个位于标记的未形成部分时，在路径差异（相位差）之间产生光程差 p偏振光和s偏振光，使得重叠光的偏振方向变化。 另一方面，当p偏振光和s偏振光都位于标记的形成部分或非形成部分上时，偏振方向不变化。 这种偏振方向的变化被检测为偏振板的接收光量的变化，以便能够进行信号再现。
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公开(公告)号：JP2012018703A
公开(公告)日：2012-01-26
申请号：JP2010153553
申请日：2010-07-06
Inventor： OTA AKIRA , IWAMURA TAKASHI , OYAMADA MITSUAKI , UEDA DAISUKE
CPC classification number: G11B7/24035 , G11B7/00452 , G11B7/2405 , G11B7/245 , G11B2007/0009 , G11B2007/00457 , Y10T428/24273
Abstract: PROBLEM TO BE SOLVED: To improve recording characteristics of an optical recording medium for forming a hole mark on a bulk recording layer.SOLUTION: A recording layer is formed by an organic material (thermoplastic resin and thermosetting resin) having an oxygen element ratio of 9.1% or more. For example, the material is polyethersulfone, polyimide, polyethylene and the like. Alternatively, a recording layer is formed by a material obtained by adding a low-molecular-weight compound into a resin in which the oxygen element ratio after mixing is 9.1% or more.
Abstract translation: 要解决的问题：提高用于在大量记录层上形成孔标记的光记录介质的记录特性。 解决方案：记录层由氧元素比为9.1％以上的有机材料（热塑性树脂和热固性树脂）形成。 例如，该材料是聚醚砜，聚酰亚胺，聚乙烯等。 或者，通过将低分子化合物添加到混合后的氧元素比为9.1％以上的树脂中而形成记录层。 版权所有（C）2012，JPO＆INPIT
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Patent Agency Ranking26.发明专利
公开(公告)号：JP2009170013A
公开(公告)日：2009-07-30
申请号：JP2008004998
申请日：2008-01-11
Inventor： IWAMURA TAKASHI , OYAMADA MITSUAKI , UEDA DAISUKE
CPC classification number: G11B7/244 , B82Y10/00 , B82Y20/00 , G11B7/00452 , G11B7/241 , G11B7/246 , G11B7/251 , G11B7/2531
Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording method and an optical information recording medium that can improve a recording rate, and an information reproducing device, an optical information reproducing method and an optical information recording and reproducing device that can improve reproducing characteristics of the optical information recording medium. SOLUTION: A recording mark which is formed with a void is formed by evaporating two-photon absorption material by two-photon absorption reaction, which is one aspect of photoreaction with respect to a recording light beam as a recording light collected upon recording of information. Further, a recording layer reproduces the information based on a return light beam which is formed by modulating a read light beam which is radiated as a predetermined read light upon reproduction of the information according to the presence of the recording mark. The recording layer is formed by distributing two-photon absorption particles where the two-photon absorption material is disposed in metal fine particles MN, to a binder resin which forms the recording layer, thereby the two-photon absorption material having two-photon absorption characteristics as vaporizing material is arranged near the metal fine particles MN which are distributed in the binder resin. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供可以提高记录速率的光学信息记录方法和光学信息记录介质，以及可以改善的信息再现装置，光学信息再现方法和光学信息记录和再现装置 再现光信息记录介质的特性。 解决方案：通过双光子吸收反应蒸发双光子吸收材料形成一个形成有空隙的记录标记，双光子吸收反应是作为在记录时收集的记录光的相对于记录光束的光反应的一个方面 的信息。 此外，记录层基于通过根据记录标记的存在再现信息而调制作为预定读取光照射的读取光束而形成的返回光束再现信息。 记录层通过将双光子吸收材料分布在金属细颗粒MN中的双光子吸收颗粒分布到形成记录层的粘合剂树脂上形成，从而双光子吸收材料具有双光子吸收特性 因为气化材料布置在分布在粘合剂树脂中的金属微粒MN附近。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2005216365A
公开(公告)日：2005-08-11
申请号：JP2004020695
申请日：2004-01-29
Inventor： MASUHARA SHIN , UEDA DAISUKE
Abstract: PROBLEM TO BE SOLVED: To provide a reproduction-only region and a recording-available region, which are monolayers, in a blue ray disk. SOLUTION: In an optical disk 100, a recording track 101 which constitutes a ROM region and mirror parts 103 which interrupt the pit strings 102 of the recording tracks 101 in the tangential direction are formed on the signal surface of the one side of the optical disk 100. The mirror parts 103 are dispersively arranged on the recording and reproducing regions of the optical disk 100, and the length of each mirror part 103 is about 1 mm in a blue ray disk so that a spot may continuously trace the pit string on the track even if tracking servo is not applied. A recording capacity can be ensured by intermittently locating the mirror parts 103 at a plurality of places. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：在蓝光光盘中提供作为单层的再现区域和可记录区域。 解决方案：在光盘100中，构成ROM区域的记录轨道101和在切向方向上中断记录轨道101的凹坑列102的镜子部分103形成在一侧的信号表面上 镜子部分103分散布置在光盘100的记录和再现区域上，并且每个镜子部分103的长度在蓝光盘中大约为1mm，使得斑点可以连续地追踪坑 即使没有应用跟踪伺服，也会在轨道上串。 可以通过在多个位置间歇地定位镜子部件103来确保记录容量。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2003247934A
公开(公告)日：2003-09-05
申请号：JP2002048015
申请日：2002-02-25
Applicant: SONY CORP
Inventor： UEDA DAISUKE , YAMAZAKI TAKESHI
Abstract: PROBLEM TO BE SOLVED: To measure in-plane and vertical birefringence even in relation to a light transmission layer having an unknown principal axis direction in the in-plane birefringence by correctly grasping it. SOLUTION: A laser beam with its polarization direction aligned by a polarizer is obliquely irradiated on a measurement point while the light transmission layer is rotated around the measurement point, reflected light is detected through a crossed Nicols-based optical system, and the principal axis direction in in-plane directions of a refractive index ellipsoid is found based on the light intensity variation of the reflected light. Next, the light transmission layer is so fixed that the laser beam is irradiated from a direction crossing at 45° with respect to the principal axis direction, the laser beam with its polarization direction aligned is obliquely irradiated on the measurement point through a quarter-wave plate, and the in-plane and vertical birefringence of the light transmission layer is measured by detecting the phase difference of the reflected light. COPYRIGHT: (C)2003,JPO
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29.发明专利
公开(公告)号：JP2010122373A
公开(公告)日：2010-06-03
申请号：JP2008294582
申请日：2008-11-18
Inventor： IWAMURA TAKASHI , OYAMADA MITSUAKI , UEDA DAISUKE
Abstract: PROBLEM TO BE SOLVED: To reduce the light intensity of a laser beam required to form a recording mark. SOLUTION: A recording layer 101 of an optical information recording medium 100 contains a two-photon absorbing material. This two-photon absorbing material is a metal complex in which one or more molecules coordinate with a metal atom, and the material performs one-photon absorption of a recording light beam L1 by a change of state due to two-photon absorption upon irradiation with the recording light beam L1 which is recording light for information recording, and forms a recording mark by heat generation in response to the one-photon absorption. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：减少形成记录标记所需的激光束的光强度。 解决方案：光信息记录介质100的记录层101包含双光子吸收材料。 该双光子吸收材料是金属配合物，其中一个或多个分子与金属原子配位，并且材料通过在照射时由于双光子吸收而导致的状态变化而对记录光束L1进行单光子吸收 记录用于信息记录的光的记录光束L1，并且响应于单光子吸收而通过发热形成记录标记。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009238285A
公开(公告)日：2009-10-15
申请号：JP2008081532
申请日：2008-03-26
Inventor： UEDA DAISUKE , IWAMURA TAKASHI
IPC: G11B7/0045 , G11B7/125 , G11B7/135
CPC classification number: G11B7/126 , B82Y10/00 , G11B7/00456 , G11B2007/0009
Abstract: PROBLEM TO BE SOLVED: To provide an optical recording method and optical recording apparatus which form a recording mark of an appropriate shape at an appropriate location of a medium by using a mode locked laser. SOLUTION: A recording mark G of an appropriate shape (length in inside direction X and length in thickness direction Z of a recording surface are L1 and L2 respectively) is formed at an appropriate location of a recording medium 10 by irradiating a location (50-70 (nm) of Fig.4) of a recording medium 10 which is desired to be irradiated with a laser light of large intensity, with the laser light of large intensity, and irradiating locations (40-50 (nm) and 70-80 (nm) of FIg.4) of the recording medium 10 which is desired to be irradiated with a laser light of small intensity, with the laser light of small intensity, since the laser light is emitted at a predetermined time interval from the mode locked laser 2 (ST302), the amplitude of a pulse of an emitted laser light is modulated at a designated time interval by semiconductor optical amplifier 3 (ST303), and irradiates the rotating recording medium 10 (ST304). COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：提供一种通过使用锁模激光器在介质的适当位置形成适当形状的记录标记的光学记录方法和光学记录装置。 解决方案：通过照射位置在记录介质10的适当位置处形成适当形状（记录表面的长度和记录表面的厚度方向Z上的长度分别为L1和L2）的记录标记G （图4的50-70（nm）），期望用强度大的激光照射的记录介质10，强度大的激光和照射位置（40-50（nm）和 由于激光以预定的时间间隔从...发射，所以需要用小强度的激光照射的记录介质10的70-80（nm） 模式锁定激光器2（ST302），通过半导体光放大器3以指定的时间间隔调制发射的激光的脉冲的振幅（ST303），并照射旋转的记录介质10（ST304）。 版权所有（C）2010，JPO＆INPIT
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