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1. 发明公开

EP1615214A4 OPTICAL RECORDING MEDIUM AND RECORDING/REPRODUCING METHOD THEREFOR 审中-公开
标题翻译：记录介质和光学录/放THEREOF
公开(公告)号：EP1615214A4
公开(公告)日：2008-07-23
申请号：EP04726915
申请日：2004-04-12
申请人： MITSUBISHI KAGAKU MEDIA CO LTD
发明人： NODA Y , FUROMOTO S
IPC分类号： G11B7/24 , G11B7/007 , G11B7/24038 , G11B7/24079 , G11B7/26
CPC分类号： G11B7/24079 , G11B7/24038
摘要： In a single-sided incident type optical recording medium having a plurality of dye containing recording layers, sufficient reflectance and excellent recording characteristics necessary to record or read information in or from a dye containing recording layer positioning farther from a side from which a light beam comes in can be obtained. The optical recording medium has a first substrate (21) having a guide groove, a first dye containing recording layer (22), a semitransparent reflective layer (23), an intermediate layer (24), a second dye containing recording layer (25), a reflective layer (26) and a second substrate (27) having a guide groove. Information is recorded or read in or from the first dye containing recording layer (22) and the second dye containing recording layer (25) by irradiating the light beam from the first substrate's side. The depth of the guide groove on the second substrate is within a range from 1/100 × » to 1/6 × » where » represents the recording/reading wavelength.

2. 发明公开

EP1873771A4 OPTICAL RECORDING MEDIUM 有权
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.

3. 发明公开

EP1739668A4 OPTICAL RECORDING MEDIUM 有权
公开(公告)号：EP1739668A4
公开(公告)日：2010-05-19
申请号：EP05734678
申请日：2005-04-21
申请人： MITSUBISHI KAGAKU MEDIA CO LTD
发明人： NODA YOSHIHIRO , FUROMOTO S
IPC分类号： G11B7/24038 , G11B7/246 , G11B7/2463 , G11B7/2467 , G11B7/247 , G11B7/2472 , G11B7/2475 , G11B7/249 , G11B7/253 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/2535 , G11B7/2536 , G11B7/257 , G11B7/2578 , G11B7/258 , G11B7/259
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.)

4. 发明公开

EP1739667A4 OPTICAL RECORDING MEDIUM 有权
标题翻译： OPTISCHES AUFZEICHNUNGSMEDIUM
公开(公告)号：EP1739667A4
公开(公告)日：2009-06-03
申请号：EP05734677
申请日：2005-04-21
申请人： MITSUBISHI KAGAKU MEDIA CO LTD
发明人： AGA MASAFUMI , NODA YOSHIHIRO , FUROMOTO S
IPC分类号： G11B7/24038
CPC分类号： G11B7/24038 , G11B7/263
摘要： Disclosed is an optical recording medium (300) with improved recording characteristics which comprises a plurality of recording layers arranged on a transparent substrate. Specifically, the optical recording medium (300) comprises two recording layers (a first recording layer (302) and a second recording layer (305)) which are arranged on a transparent first substrate (301) and into or from which information can be written or read by a laser light (310) irradiated thereon, and an intermediate layer (304) arranged between the two recording layers. A certain groove for a recording track is formed in a surface of the intermediate layer (304) which is opposite to the surface on the first substrate (301) side, and the intermediate layer (304) is composed of a plurality of resin layers (a first resin layer (304a), a second resin layer (304b), and so on to the outermost resin layer (304c)). When the certain groove for a recording track is formed in the outermost resin layer (304c), the outermost resin layer (304c) is made of a resin having an elastic modulus different from those of the other resin layers of the intermediate layer (304).
摘要翻译：公开了一种具有改进的记录特性的光学记录介质（300），其包括布置在透明基板上的多个记录层。具体而言，光记录介质（300）包括布置在透明的第一基板（301）上的两个记录层（第一记录层（302）和第二记录层（305）），并且信息可写入其中或由其上照射的激光（310）读取，以及布置在两个记录层之间的中间层（304）。在中间层（304）的与第一基板（301）侧的表面相对的表面上形成用于记录轨道的特定凹槽，并且中间层（304）由多个树脂层（第一树脂层（304a），第二树脂层（304b）等等向最外树脂层（304c））。当在最外树脂层（304c）中形成用于记录轨道的特定凹槽时，最外树脂层（304c）由具有与中间层（304）的其他树脂层不同的弹性模量的树脂制成，。

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