公开(公告)号：US4656079A

公开(公告)日：1987-04-07

申请号：US743801

申请日：1985-06-12

申请人： Noboru Yamada ,  Eiji Ohno ,  Kunio Kimura

发明人： Noboru Yamada ,  Eiji Ohno ,  Kunio Kimura

IPC分类号： G11B7/243 ,  G11B7/253 ,  G11B7/2533 ,  B32B15/04 ,  G01D15/14 ,  G01D15/34

CPC分类号： G11B7/243 ,  G11B2007/24308 ,  G11B2007/24312 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B7/2533 ,  Y10S428/913 ,  Y10S430/146 ,  Y10S430/165 ,  Y10T428/24917 ,  Y10T428/31507 ,  Y10T428/31692 ,  Y10T428/31699

摘要： A reversible optical information recording medium which permits recording, reproducing, erasing and rewriting at high speeds by means of laser beams. The reversible optical information recording medium has a recording thin film which is essentially constituted by Te-Au-O, and Ge or Se. In the system which employs Ge, the recording thin film is formed by addition of at least one selected from a group consisting of Sn, In, Bi and Sb, such as to reduce the Au content in the film composition. On the other hand, in the system which employs Se, a further improvement in the stability of the recorded signal is achievable by the addition of Ge, and an improvement in the recording/erasing sensitivities, particularly erasing sensitivity, can be enhanced by addition of at least one element selected from a group consisting of Sn, In, Bi and Sb. The recording/erasing mechanism in the reversible optical information recording medium of the invention mainly relies upon a change in the optical characteristic which in turn is caused mainly by a reversible phase change of Te. The phase change in the recording medium of the invention can be effected by a laser beam of an extremely low light power density and short irradiation time as compared with that required by the conventional optical information recording medium. This in turn permits much higher speed of recording and erasing of information over the conventional optical information recording medium.

摘要翻译： 一种可逆光信息记录介质，其允许通过激光束以高速记录，再现，擦除和重写。 可逆光信息记录介质具有基本上由Te-Au-O和Ge或Se构成的记录薄膜。 在采用Ge的系统中，通过添加选自由Sn，In，Bi和Sb组成的组中的至少一种来形成记录薄膜，以减少膜组成中的Au含量。 另一方面，在采用Se的系统中，通过添加Ge可以实现记录信号的稳定性的进一步提高，并且通过添加Ge可以提高记录/擦除灵敏度的提高，特别是擦除灵敏度 选自由Sn，In，Bi和Sb组成的组中的至少一种元素。 本发明的可逆光信息记录介质中的记录/擦除机制主要依赖于光学特性的变化，其特征在于主要由Te的可逆相变引起。 本发明的记录介质的相位变化可以通过与传统的光学信息记录介质所需的相比，具有极低的光功率密度和短的照射时间的激光束来实现。 这又允许在常规光学信息记录介质上记录和擦除信息的速度更高。

公开(公告)号：US07948860B2

公开(公告)日：2011-05-24

申请号：US12872214

申请日：2010-08-31

申请人： Yuko Kawaguchi ,  Shinya Abe ,  Morio Tomiyama ,  Eiji Ohno

发明人： Yuko Kawaguchi ,  Shinya Abe ,  Morio Tomiyama ,  Eiji Ohno

IPC分类号： G11B7/24

CPC分类号： G11B7/00736 ,  G11B7/0053 ,  G11B7/24079 ,  G11B7/268 ,  G11B20/00268

摘要： An optical recording medium includes a main-information area in which a metal reflection film is formed on a substrate where a row of pits is formed as main data, and a sub-information area in which is recorded medium identification information, which is used to identify the optical recording medium individually, by removing the metal reflection film partially and forming a plurality of reflection-film removed areas. Information is reproduced by irradiating the metal reflection film with a beam of light. In the sub-information area, a row of pits or a guide groove is formed on the substrate, and a track pitch of the row of pits or the guide groove is at least 0.24 μm wide and at most 0.45 μm wide.

摘要翻译： 光记录介质包括主要信息区域，其中在形成有一排凹坑的基板上形成金属反射膜作为主数据，以及其中记录介质识别信息的子信息区域，其被用于 通过部分地去除金属反射膜并形成多个反射膜去除区域来分别识别光记录介质。 通过用光束照射金属反射膜来再现信息。 在子信息区域中，在基板上形成一排凹坑或引导凹槽，该凹坑排或导向槽的轨道间距至少为0.24μm宽，最大为0.45μm宽。

公开(公告)号：US20080144483A1

公开(公告)日：2008-06-19

申请号：US11956127

申请日：2007-12-13

申请人： Keiji NISHIKIORI ,  Eiji Ohno ,  Shinya Abe

发明人： Keiji NISHIKIORI ,  Eiji Ohno ,  Shinya Abe

IPC分类号： G11B3/70

CPC分类号： G11B7/24067 ,  G11B7/24053

摘要： An optical information recording medium that has a simple structure and with which warpage is kept to a minimum even under environmental changes over a wide range, and a method for manufacturing this medium are provided. The optical information recording medium is an optical information recording medium used for the reproduction of recorded information and for recording and reproduction, including a substrate having an information recording layer, and a light transmitting layer that covers the information recording layer and is composed of a radiation curable resin, wherein a warpage adjusting layer for adjusting warpage of the light transmitting layer caused by temperature changes is disposed on the opposite side of the substrate from the side on which the information recording layer is formed. There is included at least a temperature region that satisfies the relationship that the coefficient of linear expansion CL of the light transmitting layer

摘要翻译： 提供具有简单结构并且即使在宽范围内的环境变化下翘曲也保持最小的光学信息记录介质，以及制造该介质的方法。 光信息记录介质是用于再现记录信息并用于记录和再现的光学信息记录介质，包括具有信息记录层的基板和覆盖信息记录层并由辐射组成的光透射层 固化树脂，其中用于调节由温度变化引起的透光层的翘曲的翘曲调节层设置在与形成信息记录层的一侧相对的基板的相反侧。 至少包含满足在室温下的透光层的线膨胀系数CL（翘曲调节层的线膨胀系数SL）的系数的关系的温度区域。

公开(公告)号：US20080043602A1

公开(公告)日：2008-02-21

申请号：US11577746

申请日：2005-11-08

申请人： Keiji Nishikiori ,  Morio Tomiyama ,  Eiji Ohno

发明人： Keiji Nishikiori ,  Morio Tomiyama ,  Eiji Ohno

IPC分类号： G11B7/24 ,  G11B7/00

CPC分类号： G11B7/00736 ,  G11B7/24038 ,  G11B2007/0013

摘要： An optical information recording medium includes a substrate, n information recording layers provided on the substrate, and spacer layers, each of which is provided so as to be interposed between the information recording layers, wherein each of (n−1) or more of the information recording layers has a layer number information part that is formed in correspondence with one or more recording marks X and contains layer number information, where n represents an integer of not less than 2, and the layer number information is information used for determining which a given information recording layer is among the n information recording layers. Each recording mark X has a length in a circumferential direction longer than a length of a recording mark Y used for recording another information in the information recording layers.

摘要翻译： 光学信息记录介质包括基板，设置在基板上的n个信息记录层以及间隔层，每个间隔层被设置成介于信息记录层之间，其中，（n-1）个或更多个 信息记录层具有与一个或多个记录标记X相对应形成的层号信息部分，并且包含层号信息，其中n表示不小于2的整数，层号信息是用于确定哪个 给定信息记录层是n个信息记录层之一。 每个记录标记X具有比用于在信息记录层中记录另一信息的记录标记Y的长度更长的周向长度。

公开(公告)号：US20070117046A1

公开(公告)日：2007-05-24

申请号：US10550069

申请日：2004-04-01

申请人： Morio Tomiyama ,  Shinya Abe ,  Yuuko Kawaguchi ,  Eiji Ohno

发明人： Morio Tomiyama ,  Shinya Abe ,  Yuuko Kawaguchi ,  Eiji Ohno

IPC分类号： G11B7/24

CPC分类号： G11B7/24079 ,  G11B7/24038 ,  G11B7/24085

摘要： An optical recording medium is provided with: a first substrate having first pits on one face thereof; a first reflective layer that is formed on the face bearing the first pits of the first substrate in a manner so as to reflect lands and recesses of the first pits; a second substrate that is formed on the first reflective layer, with second pits being formed on a face on the side opposite to the first reflective layer; a second reflective layer that is formed on the face bearing the second pits of the second substrate in a manner so as to reflect lands and recesses of the second pits; and a cover layer formed on the second reflective layer. In this structure, the first pit depth d1 that is a difference between lands and recesses of the first reflective layer, the wavelength λ of signal-reproducing laser light and the refractive index n1 of the second substrate satisfy the following relational expressions: λ/(5n1)≦d1≦λ/(3n1) and d1≠λ/(4n1). Moreover, the second pit depth d2, which is a difference between lands and recesses of the second reflective layer, the wavelength λ of signal-reproducing laser light and the refractive index n2 of the cover layer satisfy the following relational expressions: λ/(5n2)≦d2≦λ/(3n2) and d2≠λ/(4n2).

摘要翻译： 光记录介质设置有：第一基板，其一面上具有第一凹坑; 第一反射层，其形成在承载第一基板的第一凹坑的表面上，以便反映第一凹坑的凹槽和凹陷; 形成在第一反射层上的第二基板，第二凹坑形成在与第一反射层相对的一侧的表面上; 第二反射层，其形成在承载第二基板的第二凹坑的表面上，以便反射第二凹坑的凹陷和凹陷; 以及形成在所述第二反射层上的覆盖层。 在该结构中，第一凹坑深度d 1是第一反射层的平台和凹陷之间的差，信号再现激光的波长λ和折射率n <1 < / SUB>满足以下关系式：λ/（5n 1 <1）<= 1 / >）和d 1 /λλ/（4n 1 1）。 此外，作为第二反射层的焊盘和凹部之间的差异，信号再现激光的波长λ和折射率n 2 2的第二凹坑深度d 2 2 < 覆盖层的SUB>满足以下关系式：λ/（5n 2 2）2 = 2/2 =λ/（3 N 2 ）和d 2 /λλ/（4n 2 2）。

公开(公告)号：US07095705B2

公开(公告)日：2006-08-22

申请号：US11087307

申请日：2005-03-23

申请人： Kenichi Nishiuchi ,  Naoyasu Miyagawa ,  Eiji Ohno ,  Nobuo Akahira

发明人： Kenichi Nishiuchi ,  Naoyasu Miyagawa ,  Eiji Ohno ,  Nobuo Akahira

IPC分类号： G11B7/24

CPC分类号： G11B11/10595 ,  G11B7/0045 ,  G11B7/00456 ,  G11B7/005 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00736 ,  G11B7/08505 ,  G11B7/08511 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/094 ,  G11B7/126 ,  G11B7/1267

摘要： An optical information recording and reproducing apparatus for recording and reproducing an information signal on/from both concave portions and convex portions of guide grooves formed on a recording medium is disclosed. The optical information recording and reproducing apparatus includes: an optical portion for focusing a light beam emitted from a light source on the recording medium; a focusing control portion for controlling a focal point of the light beam; a tracking control portion for controlling the position of the light beam; a selection portion for selecting which of the concave portions and the convex portions of the guide grooves are used for recording or reproducing; a polarity inverting portion for inverting the polarity of an output signal from the tracking control portion depending on a result selected by the selection portion; a waveform setting portion for setting a modulation pattern for the light; and a signal reproduction portion for demodulating the information signal from a light reflected or transmitted by recorded marks recorded on the recording medium; wherein at least one of the focusing control portion, the tracking control portion, the waveform setting portion and the signal reproduction portion has at least two kinds of operation conditions for recording and reproducing the information signal on/from the concave portions and the convex portions of the guide grooves, and wherein the operation conditions are selected depending on the result selected by the selection portion.

公开(公告)号：US07037413B1

公开(公告)日：2006-05-02

申请号：US09637095

申请日：2000-08-10

申请人： Mayumi Otoba ,  Noboru Yamada ,  Katsumi Kawahara ,  Hiroyuki Ohta ,  Eiji Ohno ,  Ken'ichi Nagata

发明人： Mayumi Otoba ,  Noboru Yamada ,  Katsumi Kawahara ,  Hiroyuki Ohta ,  Eiji Ohno ,  Ken'ichi Nagata

IPC分类号： C23C14/34

CPC分类号： G11B7/006 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/00557 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/24 ,  G11B7/24085 ,  G11B7/243 ,  G11B7/257 ,  G11B7/26 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715

摘要： The present invention provides an optical information medium having excellent weather resistance and repeating characteristics. The optical information medium has a barrier layer between a protective layer and a recording layer. The barrier layer includes GeN or GeON, and at least one element selected from the group consisting of Al, B, Ba, Bi, C, Ca, Ce, Cr, Dy, Eu, Ga, H, In, K, La, Mn, N, Nb, Ni, Pb, Pd, S, Si, Sb, Sn, Ta, Te, Ti, V, W, Yb, Zn and Zr.

摘要翻译： 本发明提供一种具有优异耐候性和重复特性的光学信息介质。 光信息介质在保护层和记录层之间具有阻挡层。 阻挡层包含GeN或GeON，以及选自Al，B，Ba，Bi，C，Ca，Ce，Cr，Dy，Eu，Ga，H，In，K，La，Mn中的至少一种元素 ，N，Nb，Ni，Pb，Pd，S，Si，Sb，Sn，Ta，Te，Ti，V，W，Yb，Zn和Zr。

公开(公告)号：US20050048248A1

公开(公告)日：2005-03-03

申请号：US10912193

申请日：2004-08-06

申请人： Eiichi Ito ,  Eiji Ohno ,  Yuuko Kawaguchi

发明人： Eiichi Ito ,  Eiji Ohno ,  Yuuko Kawaguchi

IPC分类号： G03F7/004 ,  G11B7/26 ,  B32B3/02

CPC分类号： G11B7/261 ,  G03F7/0042 ,  G03F7/0043 ,  G11B7/263

摘要： A method of manufacturing a master of an optical information recording medium includes a resist layer formation step of using a resist to form a resist layer on an upper surface of a substrate, an exposure step for selectively exposing the resist layer to cause a change of state in the resist layer, and a development step for performing an alkali development process on the resist layer after the exposure step. The resist is primarily composed of an inorganic material and contains at least Te and O, and further contains a stabilizing additive having a lower solubility than TeO2 in an alkaline environment.

摘要翻译： 制造光信息记录介质的母版的方法包括：抗蚀剂层形成步骤，使用抗蚀剂在衬底的上表面上形成抗蚀剂层;曝光步骤，用于选择性地曝光抗蚀层以引起状态改变 以及在曝光步骤之后对抗蚀剂层进行碱显影处理的显影步骤。 抗蚀剂主要由无机材料组成，并且至少含有Te和O，并且还包含在碱性环境中具有比TeO 2更低的溶解度的稳定添加剂。

公开(公告)号：US06261661B1

公开(公告)日：2001-07-17

申请号：US09654981

申请日：2000-09-05

申请人： Eiji Ohno ,  Hidemi Isomura ,  Akihiro Moteki

发明人： Eiji Ohno ,  Hidemi Isomura ,  Akihiro Moteki

IPC分类号： B32B302

CPC分类号： G11B7/26 ,  G11B7/24 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T156/1002 ,  Y10T428/21 ,  Y10T428/31507 ,  Y10T428/31678

摘要： An optical information recording medium includes a first substrate; at least a first dielectric layer and a recording layer for signal recording provided on a surface of the first substrate; and a second substrate. The first substrate and the second substrate are assembled together in the state of being warped in planar symmetry and flattened. The first dielectric layer and the recording layer is interposed between the first substrate and the second substrate.

公开(公告)号：US6165578A

公开(公告)日：2000-12-26

申请号：US120081

申请日：1998-07-21

申请人： Eiji Ohno ,  Hidemi Isomura ,  Akihiro Moteki

发明人： Eiji Ohno ,  Hidemi Isomura ,  Akihiro Moteki

IPC分类号： G11B7/24 ,  G11B7/26 ,  B32B3/02

CPC分类号： G11B7/26 ,  G11B7/24 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T156/1002 ,  Y10T428/21 ,  Y10T428/31507 ,  Y10T428/31678

摘要： An optical information recording medium includes a first substrate; at least a first dielectric layer and a recording layer for signal recording provided on a surface of the first substrate; and a second substrate. The first substrate and the second substrate are assembled together in the state of being warped in planar symmetry and flattened. The first dielectric layer and the recording layer is interposed between the first substrate and the second substrate.