公开(公告)号：JPH07296419A

公开(公告)日：1995-11-10

申请号：JP8608694

申请日：1994-04-25

Applicant: SONY CORP

Inventor： KIJIMA YASUNORI ,  ASAI NOBUTOSHI ,  IWAMURA TAKASHI

IPC: G11B7/24

Abstract: PURPOSE:To make it possible to confine the recording information quantity of about 4 times the present recording information quantity to an optical recording medium of the same size as the present size without subjecting the device side to a drastic change, such as shortening of the wavelength of reproducing light, increasing of the numerical aperture NA of a focusing lens and changing of a signal demodulation system. CONSTITUTION:This optical recording medium is constituted by forming a saturable absorbent dyestuff-contg. layer 3 contg. at least a saturable absorbent dyestuff and arom. compd. and a recording layer and/or reflection layer 4 on a light transmissive substrate 1. The saturable absorbent dyestuff of which the molecule light absorption coefft. epsilon at the wavelength of reproducing light is >=10 and the relaxation time tau is 1ns

公开(公告)号：JPH06314442A

公开(公告)日：1994-11-08

申请号：JP12797293

申请日：1993-04-30

Applicant: SONY CORP

Inventor： KIJIMA YASUNORI ,  IWAMURA TAKASHI ,  TAMURA SHINICHIRO ,  SETO NOBUYOSHI

IPC: G11B7/00 ,  G11B7/003 ,  G11B7/24 ,  G11B7/26

Abstract: PURPOSE:To reduce error rate at the time of recording and reproduction due to the peeling or falling of the edge part of a recording layer. CONSTITUTION:When a recording layer 3 capable of optical recording and/or reproduction of information and a protective layer 4 are formed on the top of a substrate 2 to obtain an optical recording medium, the recording layer 3 is formed on the top of the substrate 2 except the edge part 84 of the substrate 2. Since the edge part 84 of the substrate 2, that is, the part 90 not coated with a soln. for the recording layer is subjected to slitting, the edge part 84 of the recording layer 3 is prevented from cracking.

公开(公告)号：JPH05242523A

公开(公告)日：1993-09-21

申请号：JP4483692

申请日：1992-03-02

Applicant: SONY CORP

Inventor： IWAMURA TAKASHI ,  TAMURA SHINICHIRO ,  ASAI NOBUTOSHI

IPC: G11B7/24

Abstract: PURPOSE:To obtain a good traveling characteristic with the tape-like optical recording medium without being in contact with a helical scan drum on which a medium rotates at a high speed so as to greatly improve the wear resistance thereof and to enable recording at a higher density. CONSTITUTION:The thickness of the flexible base body 3 of the optical recording medium constituted by forming a recording layer 2 on which information can be optically recorded and reproduced on the flexible base body 3, is >=10mm and Pa.

公开(公告)号：JP2011227968A

公开(公告)日：2011-11-10

申请号：JP2010098018

申请日：2010-04-21

Applicant: Sony Corp ,  ソニー株式会社

Inventor： OTA AKIRA ,  IWAMURA TAKASHI

IPC: G11B7/24 ,  G11B7/242

CPC classification number: G11B7/251 ,  G11B7/00451 ,  G11B7/245 ,  G11B2007/0013 ,  G11B2007/00457

Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording medium that can be improved in recording medium.SOLUTION: The present invention relates to the optical information recording medium which has a recording layer 11 including a thermoplastic resin and particles of inorganic oxide dispersed in the thermoplastic resin. The particles of the inorganic oxide are subjected to a surface treatment using a silane coupling agent. The thermoplastic resin has in a structural unit one or more functional groups selected out of a carbonyl group and an alkoxycarbonyl group. The thermoplastic resin includes one or more resins selected out of a polycarbonate resin, a noncrystalline polyacrylate resin, and a poly methyl methacrylate resin.

Abstract translation: 要解决的问题：提供可以在记录介质中改进的光学信息记录介质。 解决方案：本发明涉及具有包含热塑性树脂的记录层11和分散在热塑性树脂中的无机氧化物颗粒的光学信息记录介质。 使用硅烷偶联剂对无机氧化物的颗粒进行表面处理。 热塑性树脂在结构单元中具有一个或多个选自羰基和烷氧基羰基的官能团。 热塑性树脂包括从聚碳酸酯树脂，非结晶聚丙烯酸酯树脂和聚甲基丙烯酸甲酯树脂中选出的一种或多种树脂。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010122373A

公开(公告)日：2010-06-03

申请号：JP2008294582

申请日：2008-11-18

Applicant: Sony Corp ,  ソニー株式会社

Inventor： IWAMURA TAKASHI ,  OYAMADA MITSUAKI ,  UEDA DAISUKE

IPC: G03C1/72 ,  G11B7/24 ,  G11B7/244

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

公开(公告)号：JP2009238285A

公开(公告)日：2009-10-15

申请号：JP2008081532

申请日：2008-03-26

Applicant: Sony Corp ,  ソニー株式会社

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

公开(公告)号：JP2009238282A

公开(公告)日：2009-10-15

申请号：JP2008081323

申请日：2008-03-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： UEDA DAISUKE ,  IWAMURA TAKASHI

IPC: G11B7/0045 ,  G11B7/125 ,  G11B7/135

CPC classification number: G11B7/00451 ,  G11B7/127 ,  G11B2007/0009

Abstract: PROBLEM TO BE SOLVED: To provide an optical recording method and optical recording apparatus which form a recording mark in a medium with low optical power. SOLUTION: A minimum area g of a recording medium 10 is made an excitation state (or transitional state) wherein light absorption tends to occur by photo-reaction with a pulse of an ultrashort pulse laser light of low power that is the power of 1 kW. Heat reaction is caused in the recording medium 10 by irradiating with a CW (continuous wave) laser light during this excitation state (or transitional status) (for example, time of day t1-t2 in a Fig. 2), and a recording mark G (for example, void) of the desired length L1 in the length of an inside direction X of a recording surface of the recording medium 10 and the desired length L2 in the length of a thickness direction Z of the recording medium 10 is formed by low optical power. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种在具有低光功率的介质中形成记录标记的光学记录方法和光学记录装置。 解决方案：记录介质10的最小面积g被制成激发状态（或过渡状态），其中通过与作为功率的低功率的超短脉冲激光的脉冲进行光反应而容易发生光吸收 1 kW。 在该激发状态（或过渡状态）（例如，图2中的t1-t2的时刻），通过照射CW（连续波）激光，在记录介质10中产生热反应， 在记录介质10的记录表面的内部方向X的长度上的期望长度L1和记录介质10的厚度方向Z的长度上的期望长度L2的G（例如，空隙）由 光功率低。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009064483A

公开(公告)日：2009-03-26

申请号：JP2007229063

申请日：2007-09-04

Applicant: Sony Corp ,  ソニー株式会社

Inventor： OBOSHI TOSHIO ,  IWAMURA TAKASHI

IPC: G11B7/254 ,  G11B7/24 ,  G11B7/244 ,  G11B7/257 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium for achieving excellent recording/reproducing characteristics in an optical recording medium having a recording layer including an organic dye, and to provide a manufacturing method of the optical recording medium. SOLUTION: The optical recording medium has a recording layer including an organic dye, and a light transmission layer transmitting light for recording an information signal on the recording layer. There is a buffer layer including a polymer material between the recording layer and the light transmission layer. The polymer material is at least one kind of polybutadiene, polyisoprene, and their copolymers. The buffer layer is adjacent to the recording layer, and the hardness of the buffer layer is smaller than that of the light transmission layer. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在具有包含有机染料的记录层的光学记录介质中实现优异的记录/再现特性的光学记录介质，并提供光学记录介质的制造方法。 解决方案：光记录介质具有包括有机染料的记录层，以及透光层，用于在记录层上记录信息信号。 在记录层和透光层之间存在包含聚合物材料的缓冲层。 聚合物材料是至少一种聚丁二烯，聚异戊二烯及其共聚物。 缓冲层与记录层相邻，并且缓冲层的硬度小于光透射层的硬度。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2003308630A

公开(公告)日：2003-10-31

申请号：JP2003037219

申请日：2003-02-14

Applicant: Mitsui Chemicals Inc ,  Sony Corp ,  ソニー株式会社 ,  三井化学株式会社

Inventor： TAMADA SAKUYA ,  IWAMURA TAKASHI ,  SATOBI YUUICHI ,  OYAMADA MITSUAKI ,  YAMAMOTO MASANOBU ,  KOIKE MASASHI ,  MISAWA TSUTAYOSHI ,  OGISO AKIRA ,  NARA RYOSUKE ,  TOKUHIRO ATSUSHI ,  TSUKAHARA TAKASHI

IPC: B41M5/26 ,  C09B47/00 ,  G11B7/0045 ,  G11B7/24 ,  G11B7/244 ,  G11B7/254 ,  G11B7/257

Abstract: PROBLEM TO BE SOLVED: To provide a new rewritable optical recording medium having a recording layer comprising an organic dye film and capable of reversibly recording/ erasing information by laser beam radiation. SOLUTION: The new rewritable optical information recording medium having as a recording film at least one layer of organic dye film comprising practically at least one kind of organic dye compound. Information is recorded and erased by reversible physical changes caused by laser beam irradiation on an organic dye film single element. Specifically, data are recorded by a local physical change by recording laser ray irradiation, data are reproduced by detecting the returned optical intensity change of a reproducing laser beam less powerful than a recording laser beam, and data are erased by at least one application of a continuous beam or a pulse beam more powerful than a recording laser beam and less powerful than the recording laser beam. A physical change involves a shape change. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种具有包括有机染料膜的记录层并且能够通过激光束辐射可逆地记录/擦除信息的新的可重写光学记录介质。 解决方案：具有作为记录膜的新的可重写光学信息记录介质至少包含一层有机染料膜，其中包含至少一种有机染料化合物。 通过激光束照射对有机染料膜单一元件引起的可逆物理变化来记录和擦除信息。 具体地说，通过记录激光照射来通过局部物理变化来记录数据，通过检测不到记录激光束强度的再现激光束的返回光强度变化来再现数据，并且通过至少一个应用 连续光束或脉冲光束比记录激光束更强大，并且比记录激光束强大。 物理变化涉及形状变化。 版权所有（C）2004，JPO

公开(公告)号：JP2001101709A

公开(公告)日：2001-04-13

申请号：JP28238799

申请日：1999-10-04

Applicant: SONY CORP

Inventor： IWAMURA TAKASHI ,  OYAMADA MITSUAKI ,  TAMURA SHINICHIRO ,  ASAI NOBUTOSHI

IPC: G11B7/24 ,  G11B7/0045

Abstract: PROBLEM TO BE SOLVED: To provide a DRAW type recording medium having two recording layers in which influences between the recording layers are eliminated and proper recording and reproducing can be performed, and to provide an optical recording medium producing method and an optical recording method. SOLUTION: A first recording layer 111 having a structure consisting of, from the incident side of laser light, a first semireflection layer 111A, interference layer 111B and second semireflection layer 111C is formed on a first substrate 101. A second recording layer having a structure consisting of, from the incident side of laser light, a semireflection layer 112A, interference layer 112B and reflection layer 112C is formed on a second substrate 102. Then the substrates are laminated with the recording layers facing each other. The phase change of the transmitted light in the first recording layer 111 caused by recording in the first recording layer 111 is specified to