公开(公告)号：EP2446438A1

公开(公告)日：2012-05-02

申请号：EP10730866.0

申请日：2010-06-22

申请人： Thomson Licensing

发明人： TOWN, John, Matthew ,  BYRNE, Patrick, J. ,  HARTMANN, Thomas ,  HAMERSLEY, Alan, Bruce

IPC分类号： G11B7/26 ,  G11B7/24

CPC分类号： G11B7/26 ,  G11B7/24003

摘要： A data disc, method and apparatus for forming the disc are disclosed. The data disc includes a first substrate structure (900) bonded to a second substrate structure, with two curable material' layers disposed on different sides of at least one of the two substrate structures, and at least one groove (906) formed on a surface of one (904) of the two curable material layers.

公开(公告)号：EP2287839A4

公开(公告)日：2012-05-02

申请号：EP09750356

申请日：2009-05-18

申请人： PANASONIC CORP

发明人： NARUMI KENJI ,  BIRUKAWA MASAHIRO ,  KOJIMA RIE ,  ITO EIICHI

IPC分类号： G11B7/095 ,  G11B7/09 ,  G11B7/135 ,  G11B7/1387 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/258

CPC分类号： G11B7/1387 ,  G11B7/094 ,  G11B7/0956 ,  G11B7/24038 ,  G11B7/2578

摘要： An optical information recording and/or reproducing apparatus comprises: a focusing unit (11) which collects generated near-field light on an optical disc (1); a first detector (17) which receives light reflected by the optical disc (1) and outputs an electric signal according to the quantity of the received light; and a distance control circuit (22) which controls the distance between the focusing unit (11) and a light entrance surface of the optical disc (1), using the electric signal that is output from the first detector (17), and the optical disc (1) has at least N (N is an integer of 2 or greater) number of information layers, and a distance d0 from the light entrance surface to a first information layer which is most distant from the light entrance surface and a distance dn from the light entrance surface to an Nth information layer which is closest to the light entrance surface satisfy the relationship of dn ‰¥ d0 × (1/25). As a result, servo control can be accurately performed regardless which information layer, out of a plurality of information layers of an optical disc, information is recorded to or reproduced from.

公开(公告)号：EP1916655B1

公开(公告)日：2012-05-02

申请号：EP07123687.1

申请日：2004-06-11

申请人： Samsung Electronics Co., Ltd.

发明人： Lee, Kyung-Geun ,  Ko, Jung-Wan

IPC分类号： G11B7/007 ,  G11B7/24

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B7/0953 ,  G11B7/24038 ,  G11B2007/0013

公开(公告)号：EP2192585A4

公开(公告)日：2012-04-18

申请号：EP08831547

申请日：2008-09-16

申请人： KOBE STEEL LTD

发明人： JIKO NORIHIRO ,  NAKAI JUNICHI ,  TAUCHI YUKI

IPC分类号： G11B7/258 ,  G11B7/24

CPC分类号： G11B7/2585 ,  G11B7/24 ,  Y10T428/21

公开(公告)号：EP2437261A1

公开(公告)日：2012-04-04

申请号：EP10780212.6

申请日：2010-05-17

申请人： Sony Corporation ,  SONY DADC Corporation

发明人： SAKAMOTO, Tetsuhiro ,  NAKANO, Jun ,  ENDO, Takehide ,  OKAWA, Naoki

IPC分类号： G11B7/258 ,  G11B7/24

CPC分类号： G11B7/00736 ,  G11B7/2585 ,  Y10T428/24545

摘要： [Object] To provide a durable read-only optical recording medium having less variances in characteristics of a metal reflective film due to a temporal change.
[Solving Means] Provided is a read-only optical recording medium (100) including: a substrate (101); an information recording surface onto which information is recorded by combining pits (P) and lands (L); and a metal reflective film (102) that is provided in contact with the information recording surface and represented by Al 100-x-z X x Z z , where x and z each represent an atomic%, X is constituted of an element including at least Ti, Z is constituted of an element including at least Fe, x is 1.0 to 3.0, and z is 0.05 to 1.0.

摘要翻译： 提供一种耐久的只读光学记录介质，其由于时间变化而具有较小的金属反射膜特性的变化。 [解决方案]提供了一种只读光学记录介质（100），包括：基板（101）; 信息记录表面，其中通过组合凹坑（P）和平台（L）而记录信息; 和与信息记录面接触并由Al 100-xz X x Z z表示的金属反射膜（102），其中x和z各自表示原子％，X由至少包含Ti Z由至少包含Fe，x为1.0〜3.0，z为0.05〜1.0的元素构成。

公开(公告)号：EP2015296B1

公开(公告)日：2012-03-28

申请号：EP08305298.5

申请日：2008-06-23

申请人： Thomson Licensing

发明人： Przygodda, Frank

IPC分类号： G11B7/0065 ,  G11B7/24 ,  G03H1/04

CPC分类号： G11B7/0065 ,  G03H1/02 ,  G03H1/0256 ,  G03H2223/13 ,  G11B7/24044 ,  G11B7/24056

摘要： The present invention relates to a holographic storage medium (10), and more specifically to a holographic storage medium (10) with an integrated phase mask layer (21). According to the invention, the holographic storage medium (10) has a phase mask layer (21) on top of a holographic storage layer (22), wherein the phase mask layer (21) has one or more phase pattern areas (25) for coupling-in a reference beam (8) and imprinting a phase pattern on the reference beam (8), and one or more neutral areas (26) for coupling-in an object beam (8) and/or coupling-out a reconstructed object beam (11).

公开(公告)号：EP1985725A3

公开(公告)日：2012-03-21

申请号：EP08104906.6

申请日：2004-07-29

申请人： JX Nippon Mining & Metals Corporation

发明人： Yahagi, Masataka ,  Takami, Hideo

IPC分类号： C23C14/08 ,  C23C14/34 ,  G11B7/24 ,  G11B7/26

CPC分类号： G11B7/243 ,  C04B35/01 ,  C04B35/16 ,  C04B35/457 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/3293 ,  C04B2235/3409 ,  C04B2235/3418 ,  C23C14/086 ,  C23C14/3414 ,  G11B7/2531 ,  G11B7/257 ,  G11B7/259 ,  G11B7/266 ,  G11B2007/25706 ,  G11B2007/25708

摘要： A method of manufacturing an optical information recording medium by forming a thin film in a part of an optical information recording medium by the use of a sputtering target formed from a material obtained by adding B 2 O 3 to an In 2 O 3 -ZnO-SnO 2 system compound oxide having SnO 2 as its primary component, wherein the sputtering target is formed from oxide composed with the respective element ratios being In/(In + Zn + Sn + B) = 0.01 to 0.41, Zn/(In + Zn + Sn + B) = 0.02 to 0.45, Sn/(In + Zn + Sn + B) = 0.13 to 0.81, and B/(In + Zn + Sn + B) = 0.09 to 0.66.

公开(公告)号：EP2216780A4

公开(公告)日：2012-03-07

申请号：EP08855095

申请日：2008-11-25

申请人： SONY CORP

发明人： WADA YUTAKA

IPC分类号： G11B7/254 ,  G11B7/24 ,  G11B7/243 ,  G11B7/257 ,  G11B7/26

CPC分类号： G11B7/2437 ,  G11B7/2433 ,  G11B7/2578 ,  G11B2007/24304 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/2432 ,  G11B2007/24324 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  Y10T428/21

公开(公告)号：EP1739668B1

公开(公告)日：2012-03-07

申请号：EP05734678.5

申请日：2005-04-21

申请人： Mitsubishi Kagaku Media Co., Ltd.

发明人： NODA, Yoshihiro, Mitsubishi Kagaku Media Co., Ltd. ,  FUROMOTO, S., Mitsubishi Kagaku Media Co., Ltd.

IPC分类号： G11B7/24

CPC分类号： G11B7/24038 ,  G11B7/245 ,  G11B7/246 ,  G11B7/2463 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2475 ,  G11B7/248 ,  G11B7/249 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2535 ,  G11B7/2536 ,  G11B7/256 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24612 ,  G11B2007/24618 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25718 ,  Y10T428/21

摘要： In an optical recording medium 100 having two recording layers of a first recording layer 102 and a second recording layer 105, the second recording layer 105 contains metallized azo dyes represented by the following general formula (I) or (II), and recording characteristics of the second recording layer 105 are improved by having optical density of 1.3 times as large as, or 1.3 times greater than, that of a dye contained in the first recording layer 102. (In this regard, rings A1 and A2 are nitrogen-containing heteroaromatic rings, rings B1 and B2 are aromatic rings, and X is alkyl group substituted by at least two fluorine atoms.)

公开(公告)号：EP2249346B1

公开(公告)日：2012-02-29

申请号：EP10007570.4

申请日：2005-08-19

申请人： Mitsubishi Electric Corporation

发明人： Nakahara, Hironori ,  Takeshita, Nobuo ,  Ogawa, Masaharu

IPC分类号： G11B27/32 ,  G11B27/10 ,  G11B20/12 ,  G11B19/12 ,  G11B7/24 ,  G11B7/007

CPC分类号： G11B27/329 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/0945 ,  G11B7/1275 ,  G11B7/24038 ,  G11B19/122 ,  G11B20/1217 ,  G11B27/105 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2220/235