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    • 8. 发明申请
    • INFORMATION RECORDING MEDIUM
    • 信息记录媒体
    • US20110151277A1
    • 2011-06-23
    • US13060396
    • 2010-02-22
    • Takashi NishiharaRie KojimaAkio TsuchinoNoboru Yamada
    • Takashi NishiharaRie KojimaAkio TsuchinoNoboru Yamada
    • B32B9/00
    • G11B7/24038G11B7/2578G11B7/259G11B7/266G11B2007/24312G11B2007/24314G11B2007/24316G11B2007/25715Y10T428/21
    • An information recording medium (9) of the present invention is an information recording medium with respect to which information can be recorded or reproduced by irradiation with an optical beam (1). The information recording medium (9) includes a second interface layer (103), a recording layer (104) and a first interface layer (105) in this order from the optical beam (1) incident side. The first interface layer (105) and the second interface layer (103) are disposed in contact with the recording layer (104). The second interface layer (103) contains M1 (where M1 is at least one element selected from Nb, Y, Dy, Ti, Si and Al), Cr and oxygen (O). The first interface layer (105) contains M2 (where M2 is at least one element selected from Nb, Y, Dy, Ti, Si, Al, Zr and Hf), Cr and oxygen (O). The first interface layer (105) and the second interface layer (103) each contain Cr in a range of 50 mol % or less in terms of the oxide (Cr2O3).
    • 本发明的信息记录介质(9)是信息记录介质,通过用光束(1)的照射可以记录或再现信息。 信息记录介质(9)从光束(1)入射侧依次包括第二接口层(103),记录层(104)和第一界面层(105)。 第一界面层(105)和第二界面层(103)设置成与记录层(104)接触。 第二界面层(103)含有M1(其中M1为选自Nb,Y,Dy,Ti,Si和Al中的至少一种元素),Cr和氧(O)。 第一界面层(105)含有M2(其中,M2为选自Nb,Y,Dy,Ti,Si,Al,Zr和Hf中的至少一种元素),Cr和氧(O)。 第一界面层(105)和第二界面层(103)各自含有以氧化物(Cr 2 O 3)换算为50摩尔%以下的Cr。
    • 10. 发明授权
    • Information recording medium and method for manufacturing the same
    • 信息记录介质及其制造方法
    • US08580368B2
    • 2013-11-12
    • US13639011
    • 2012-02-24
    • Akio TsuchinoTakashi NishiharaHideo KusadaRie KojimaNoboru Yamada
    • Akio TsuchinoTakashi NishiharaHideo KusadaRie KojimaNoboru Yamada
    • G11B7/24
    • G11B7/24G11B7/2403G11B7/24038G11B7/24041G11B7/252G11B7/2578G11B7/266
    • An optical information recording medium including three or more information layers, wherein at least one information layer provided on the light incident side is an information layer which enables information to be overwritten and includes a recording film, a transmittance adjusting film of a dielectric containing Bi, Ti and O, and an isolation film in this order from a light incident side; and the isolation film is provided between and adjacent to the transmittance adjusting film and an intermediate separation layer which separate the information layer from another information layer on the side opposite to the light incident side; and the isolation film has an optical constant at a wavelength of 405 nm such that a refractive index is 1.8 or less and an extinction coefficient is 0.05 or less. This information recording medium prevents the repeated overwriting characteristics in a sever environment from being deteriorated.
    • 一种包括三个或更多个信息层的光学信息记录介质,其中设置在光入射侧的至少一个信息层是能够覆盖信息并包括记录膜的信息层,包含Bi的电介质的透射率调节膜, Ti和O,以及从光入射侧开始的顺序的隔离膜; 并且隔离膜设置在透光率调整膜之间并与其相邻;以及中间隔离层,其在与光入射侧相反的一侧将信息层与另一信息层分离; 并且隔离膜的波长为405nm的光学常数使得折射率为1.8以下,消光系数为0.05以下。 该信息记录介质防止了严重环境中的重复重写特性的劣化。