公开(公告)号：EP1903561A4

公开(公告)日：2010-07-21

申请号：EP06768074

申请日：2006-07-11

申请人： MITSUBISHI KAGAKU MEDIA CO LTD

发明人： MIYAZAWA TAKASHI ,  KUROSE YUTAKA ,  SHODA HISASHI ,  SATAKE KENICHI ,  TAKAHASHI YUKIKO ,  KIMURA MAYUMI ,  UCHIDA NAOYUKI ,  TAMAGAWA HIDEKI

IPC分类号： G11B7/00 ,  G11B7/246 ,  G11B7/2463 ,  G11B7/2467 ,  G11B7/247 ,  G11B7/2472 ,  G11B7/2475 ,  G11B7/249 ,  G11B7/2492 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2535 ,  G11B7/2536 ,  G11B7/254 ,  G11B7/2542 ,  G11B7/258 ,  G11B7/259

CPC分类号： G11B7/249 ,  C09B45/18 ,  C09B45/20 ,  C09B45/22 ,  G11B7/245 ,  G11B7/246 ,  G11B7/2463 ,  G11B7/2467 ,  G11B7/247 ,  G11B7/2472 ,  G11B7/2475 ,  G11B7/248 ,  G11B7/2492 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2535 ,  G11B7/2536 ,  G11B7/2542 ,  G11B7/259

摘要： [Problem]: An optical recording medium having a capability of recording and/or reading high density optical information using a short wavelength laser light is provided. [Means to Address the Problem]: The optical recording medium has a capability of recording and/or reading high density optical information using a short wavelength laser light having a wavelength of 350 nm to 530 nm. The optical recording medium has a recording layer containing a metal complex compound and formed on a substrate. The metal complex compound is composed of a cyclic ²-diketone azo compound represented by the general formula (I) or general formula (II) and a divalent metal ion coordinated to the cyclic ²-diketone azo compound.