公开(公告)号：EP1873771A4

公开(公告)日：2010-10-27

申请号：EP06731395

申请日：2006-04-07

申请人： MITSUBISHI KAGAKU MEDIA CO LTD

发明人： FUROMOTO S ,  MIZUNO MASAAKI ,  UCHIDA NAOYUKI

IPC分类号： G11B7/24 ,  G11B7/246 ,  G11B7/2463 ,  G11B7/2467 ,  G11B7/247 ,  G11B7/2472 ,  G11B7/2475 ,  G11B7/249 ,  G11B7/2492 ,  G11B7/253 ,  G11B7/2532 ,  G11B7/2534 ,  G11B7/254 ,  G11B7/2542 ,  G11B7/2548 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/259 ,  G11B7/2595

CPC分类号： G11B7/2578 ,  G11B7/245 ,  G11B7/2463 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/2475 ,  G11B7/248 ,  G11B7/2492 ,  G11B7/2532 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2548 ,  G11B7/256 ,  G11B7/259 ,  G11B7/2595 ,  G11B2007/24612 ,  G11B2007/24618 ,  G11B2007/25417 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25711 ,  Y10T428/21

摘要： To provide an optical recording medium exhibiting favorable write/read characteristics in high-speed recording. In an optical recording medium including a reflective layer, a dye-containing recording layer, and a transparent resin layer on a substrate in this order, a barrier layer is disposed between the recording layer and the resin layer, where the barrier layer comprises a material having a bulk thermal conductivity M of 70 W/m·K or more at 300 K and has a thickness t less than 5 nm.

公开(公告)号：EP1810291A4

公开(公告)日：2010-07-14

申请号：EP05805940

申请日：2005-11-07

申请人： RICOH KK

发明人： YASHIRO TOHRU

IPC分类号： G11B7/24 ,  B41M5/26 ,  G11B7/24038 ,  G11B7/244 ,  G11B7/246 ,  G11B7/2463 ,  G11B7/2467 ,  G11B7/247 ,  G11B7/2472 ,  G11B7/249 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/254 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/259 ,  G11B7/2595

CPC分类号： G11B7/249 ,  G11B7/24038 ,  G11B7/245 ,  G11B7/246 ,  G11B7/2463 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/2534 ,  G11B7/2578 ,  G11B7/2585 ,  G11B7/259 ,  G11B7/2595 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25711 ,  G11B2007/25715 ,  G11B2007/25716 ,  G11B2007/25718 ,  Y10T428/21

摘要： The present invention is aimed to provide a high-performance single-sided double-layer optical recording medium with reduced crosstalk between recording marks, wherein favorable recording signal properties are obtained even from the second recording layer located more distant from the substrate to which the light is applied, and reproducing method thereof, and an optical recording and reproducing apparatus. The optical recording medium possesses the following aspects: the optical recording medium comprises a first substrate, a first information layer, an intermediate layer, a second information layer and a second substrate in this order; the first information layer comprises a first recording layer; the second information layer comprises a second reflective layer, a second recording layer with an organic dye and a protective layer; and the pyrolysis temperature range, the DTA peak width of the thermal analysis on the organic dye in the second recording layer, is 45° C. or less.

公开(公告)号：EP1726010A4

公开(公告)日：2009-03-04

申请号：EP05721436

申请日：2005-03-17

申请人： RICOH KK

发明人： SHINKAI MASARU ,  SHINOTSUKA MICHIAKI ,  IWASA HIROYUKI

IPC分类号： G11B7/00 ,  G11B7/24038 ,  G11B7/243 ,  G11B7/2433 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/258 ,  G11B7/259

CPC分类号： G11B7/2433 ,  G11B7/24038 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25715

摘要： The present invention provides an optical recording medium comprising a transparent first substrate and a first dielectric layer, a recording layer, a second dielectric layer and a reflective layer which are laminated on the first substrate in this order, wherein the recording layer comprises a thin layer comprising mainly an alloy represented by the composition formula: GexSbyTez (wherein x, y and z represent respectively an atomic %, and x, y and z satisfy respectively the following equations: 3.5

公开(公告)号：EP1199184A4

公开(公告)日：2006-01-25

申请号：EP01917814

申请日：2001-04-03

申请人： SONY CORP

发明人： OYAMADA MITSUAKI ,  IWAMURA TAKASHI ,  TAMURA SHINICHIRO

IPC分类号： B41M5/26 ,  G11B7/24 ,  G11B7/244 ,  G11B7/254 ,  G11B7/2542 ,  G11B7/2548 ,  G11B7/257 ,  G11B7/2578

CPC分类号： G11B7/2548 ,  G11B7/24 ,  G11B7/244 ,  G11B7/2542 ,  G11B7/256 ,  G11B7/2578

摘要： A write-once optical record medium in which a record layer and a light-transmitting protective layer are formed in order on a support, and record and reproduction are performed by irradiating the light-transmitting protective layer with a laser beam of a wavelength of 380-450 nm, wherein the wavelength μmax at which the light absorption coefficient of the record layer reaches a peak is μmax

摘要翻译： 在包括记录层和在透明保护层侧依次形成的透光保护层的一次写入光记录介质中，通过从透光保护层侧照射380-450nm波长的激光束进行记录和再现，λmax 前提是提供记录层的峰值光吸收系数的波长被定义为λmax。

公开(公告)号：EP2412844A4

公开(公告)日：2016-12-21

申请号：EP10756208

申请日：2010-03-26

申请人： JX NIPPON MINING & METALS CORP

发明人： TAKAMI HIDEO ,  YAHAGI MASATAKA

IPC分类号： C23C14/34 ,  C04B35/46 ,  G11B7/24 ,  G11B7/254 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/26

CPC分类号： C04B35/46 ,  C04B35/462 ,  C04B35/495 ,  C04B35/499 ,  C04B35/62222 ,  C04B35/6262 ,  C04B35/645 ,  C04B2235/3232 ,  C04B2235/3251 ,  C04B2235/5436 ,  G11B7/24062 ,  G11B7/2578 ,  G11B7/266 ,  G11B2007/25706 ,  G11B2007/25715

摘要： Provided is a sputtering target of sintered Ti-Nb based oxide, wherein the sputtering target consists of titanium (Ti), niobium (Nb), and remainder being oxygen and unavoidable impurities, and the atomic ratio of Ti and Nb is 0.39 ‰¦ (Nb/(Ti + Nb)) ‰¦ 0.79. The sputtering target of sintered Ti-Nb based oxide has a high refractive index and a low extinction coefficient. Also provided is a thin film of Ti-Nb based oxide obtained by using the foregoing target, which enables high-rate deposition. The thin films has superior transmittance, is subject to minimal reduction and variation of reflectivity, and is useful as an interference film or a protective film of an optical information recording medium, or as a part of a constituent layer of an optical recording medium. The thin film can also be applied to a glass substrate; that is, it can be used as a heat reflecting film, an antireflection films or an interference filter,

公开(公告)号：EP2363856A4

公开(公告)日：2014-11-26

申请号：EP10738345

申请日：2010-02-03

申请人： PANASONIC CORP

发明人： KITAURA HIDEKI ,  NAGATA KENICHI

IPC分类号： G11B7/2403 ,  G11B7/24056 ,  G11B7/243 ,  G11B7/254 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/258 ,  G11B7/259 ,  G11B7/26

CPC分类号： G11B7/243 ,  G11B7/2403 ,  G11B7/24056 ,  G11B7/2578 ,  G11B7/259 ,  G11B7/266 ,  G11B2007/24304 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715

摘要： An optical information storage medium includes: a substrate; a cover layer; and a first information layer interposed between the substrate and the cover layer, recording of information in the first information layer and reading of information recorded in the first information layer being realized by irradiation with a light beam incoming from the cover layer side, wherein the first information layer includes a recording film and a protection film interposed between the recording film and the cover layer, and a distance between the cover layer and the recording film is not less than 0.5 nm and not more than 12 nm.

公开(公告)号：EP2455938A4

公开(公告)日：2014-06-25

申请号：EP10799899

申请日：2010-07-15

申请人： SHARP KK ,  MEMORY TECH CORP ,  TDK CORP

发明人： TAJIMA HIDEHARU ,  ETOH ATSUSHI ,  ASHIWA HIROAKI ,  KOJIMA RYO ,  KONISHI MASAHITO ,  KURIBAYASHI ISAMU

IPC分类号： G11B7/24038 ,  G11B7/007 ,  G11B7/24041 ,  G11B7/2433 ,  G11B7/254 ,  G11B7/2578 ,  G11B7/259

CPC分类号： G11B7/00736 ,  G11B7/0079 ,  G11B7/24038 ,  G11B7/24041 ,  G11B7/2433 ,  G11B7/254 ,  G11B7/2578 ,  G11B7/259

公开(公告)号：EP0825595A4

公开(公告)日：2001-03-14

申请号：EP97906859

申请日：1997-03-07

申请人： MATSUSHITA ELECTRIC IND CO LTD

发明人： YAMADA NOBORU ,  OTOBA MAYUMI ,  NAGATA KENICHI ,  KAWAHARA KATSUMI

IPC分类号： G11B7/2578 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/007 ,  G11B7/2433 ,  G11B7/26 ,  G11B7/24 ,  G11B7/00

CPC分类号： G11B7/257 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/0062 ,  G11B7/00718 ,  G11B7/24 ,  G11B7/243 ,  G11B7/26 ,  G11B7/266 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715

摘要： In a phase-change recording medium, a recording medium is provided with a barrier layer including Ge-N, Ge-N-O between a recording layer and a dielectric protective layer in order to prevent a chemical reaction and an atom diffusion between the recording layer and the dielectric protective layer. A barrier material can be also applied to the protective layer itself. Thereby, it is possible to considerably suppress a reduction of a reflectivity and a reduction of a signal amplitude due to the repeat of recording and erasing, such reductions being observed in a conventional phase-change optical information recording medium, and thereby the number of overwriting times can be increased .

公开(公告)号：EP1973111A4

公开(公告)日：2009-09-09

申请号：EP07706622

申请日：2007-01-11

申请人： MITSUBISHI KAGAKU MEDIA CO LTD

发明人： HORIE MICHIKAZU ,  KIYONO KENJIROU ,  KUBO MASAE

IPC分类号： G11B7/254 ,  G11B7/24 ,  G11B7/244 ,  G11B7/246 ,  G11B7/2467 ,  G11B7/249 ,  G11B7/2492 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/258 ,  G11B7/259

CPC分类号： G11B7/2467 ,  G11B7/2492 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24612 ,  G11B2007/25706 ,  Y10T428/21

摘要： Provided is an extremely high-density optical recording medium with excellent jitter characteristics and good recording/reproducing characteristics. An optical recording medium 20 comprises a substrate 21 with a guide groove formed therein, a layer 23 with a light reflection function, a recording layer 22 comprising a dye as a main component with a light absorption function for a wavelength of recording/reproducing light in an unrecorded state, and a cover layer 24 capable of transmitting the recording/reproducing light incident to the recording layer 22, in the order mentioned; an interlayer 30 containing at least one element selected from the group consisting of Ta, Nb, V, W, Mo, Cr and Ti, is provided between the layer 23 with the light reflection function and the recording layer 22.

摘要翻译： 本发明提供具有优异的抖动特性和良好的记录再现特性的非常高密度的光记录介质。 本发明提供一种光记录介质，其特征在于，具备：具有导光槽的基板;具有光反射功能的层;以含有吸收光的功能的色素作为主要成分的记录层; 以未记录状态记录再现光波长，以及覆盖层（24），该覆盖层（24）能够透过以按照顺序记录入射到记录层（22）的再现光。 在具有光反射功能的层（23）和记录层（22）之间设置含有选自Ta，Nb，V，W，Mo，Cr和Ti中的至少一种元素的中间层（30） ）。

公开(公告)号：EP1859444A4

公开(公告)日：2008-09-03

申请号：EP06729733

申请日：2006-03-16

申请人： RICOH KK

发明人： NAKAMURA YUKI ,  YASHIRO TOHRU ,  MIKAMI TATSUO

IPC分类号： G11B7/24 ,  G11B7/24038 ,  G11B7/246 ,  G11B7/2463 ,  G11B7/2467 ,  G11B7/247 ,  G11B7/2472 ,  G11B7/249 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2536 ,  G11B7/254 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/258 ,  G11B7/259

CPC分类号： G11B7/24038 ,  G11B7/246 ,  G11B7/2463 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/249 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2536 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25711 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716

摘要： The object of the present invention is to provide an optical recording medium which includes a substrate, a first information layer and a second information layer, the first information layer and the second information layer are disposed on the substrate through an intermediate layer in a laminar structure; recording and reproducing is performed on each of the two information layers by laser beam irradiation from the first information layer side; the second information layer is provided with at least a reflective layer, a dielectric layer, and a second dye recording layer formed in this order; and the dielectric layer is formed from any one of materials selected from the group consisting of oxides, nitrides, sulfides, carbides or mixtures thereof from any one of elements which are not same as metal elements and semi-metal elements used for forming the reflective layer.

摘要翻译： 本发明的目的是提供一种光学记录介质，其包括基板，第一信息层和第二信息层，第一信息层和第二信息层通过层状结构中的中间层设置在基板上 ; 通过来自第一信息层侧的激光束照射在两个信息层中的每一个上执行记录和再现; 所述第二信息层至少具有依次形成的反射层，电介质层和第二染料记录层; 所述电介质层由选自由氧化物，氮化物，硫化物，碳化物或它们的混合物组成的组中的任何一种材料形成，所述材料由与用于形成反射层的金属元素和半金属元素不同的元素 。