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    • 6. 发明申请
    • Information recording medium and process for producing the same
    • 信息记录介质及其制造方法
    • US20050233247A1
    • 2005-10-20
    • US10516244
    • 2003-05-23
    • Yasuo HosodaAyumi MitsumoriMegumi SatoMasataka YamaguchiTomoaki IzumiSatoshi JinnoYoichi Okumura
    • Yasuo HosodaAyumi MitsumoriMegumi SatoMasataka YamaguchiTomoaki IzumiSatoshi JinnoYoichi Okumura
    • G11B7/243B41M5/26G11B7/26G11B7/24
    • G11B7/266G11B7/243G11B2007/24306G11B2007/24312G11B2007/24314G11B2007/24322Y10S430/146
    • An information recording medium has an excellent jitter characteristic with a considerable difference in reflectance between prior to and subsequent to recording. The information recording medium includes a recording layer which contains a material having a reflectance which varies by irradiation of a light beam, on which information is recorded as reflectance variations, and a substrate for supporting the recording layer, the recording layer including a metal nitride as a major component. In a method of manufacturing the information recording medium having a recording layer which includes a material having a reflectance which varies by irradiation of a light beam, on which information is recorded as reflectance variations, and the substrate for supporting the recording layer, the recording layer including a metal nitride as a major component, the method includes a recording layer forming step for forming the recording layer by a reactive sputtering method which uses a target comprised of a metal constituting a metal nitride, wherein a flow ratio Ar:N2 in an atmosphere including Ar and N2 in the recording layer forming step is set within the range of 80:10 to 10:80.
    • 信息记录介质具有优异的抖动特性,在记录之前和之后具有相当大的反射率差异。 该信息记录介质包括一记录层,该记录层含有具有反射率的材料,其反射率随着光束的照射而变化,信息被记录为反射率变化,以及用于支撑该记录层的基板,该记录层包括一金属氮化物 一个主要组成部分。 在制造具有记录层的信息记录介质的方法中,记录层包括具有通过照射光束而变化的反射率的材料,其上记录信息作为反射率变化,以及用于支撑记录层的基板,记录层 包括金属氮化物作为主要成分,该方法包括用反应溅射法形成记录层的记录层形成步骤,该方法使用由构成金属氮化物的金属组成的靶,其中流动比Ar: 在记录层形成步骤中包括Ar和N 2 的气氛中,将其设定在80:10至10:80的范围内。
    • 8. 发明授权
    • Optical recording medium
    • 光记录介质
    • US07803445B2
    • 2010-09-28
    • US11884933
    • 2006-02-08
    • Yasuo Hosoda
    • Yasuo Hosoda
    • B32B3/02
    • G11B7/2578G11B7/2585G11B2007/25706G11B2007/2571G11B2007/25713G11B2007/25715Y10T428/21
    • The main object of the present invention is to provide an optical recording medium with no need to use a control subject substance of the PRTR law, capable of using for an optical recording device with a blue laser, and giving consideration to the environmental aspect.To attain the object, the present invention provides an optical recording medium comprising: a reflective layer containing an aluminum composition as the main component including both aluminum or an aluminum alloy and a metal oxide of a metal other than aluminum; and a dielectric protective layer, formed in contact with the reflective layer, containing a niobium composition as the main component including both silicon dioxide or titanium dioxide and a niobium nitrided oxide.
    • 本发明的主要目的是提供一种光记录介质,不需要使用能够用于具有蓝色激光的光学记录装置的PRTR定律的控制对象物质,并且考虑到环境方面。 为了达到上述目的,本发明提供一种光记录介质,其特征在于,具备:包含铝组合物作为主要成分的铝或铝合金和铝以外的金属的金属氧化物的反射层, 以及与反射层接触形成的包含以二氧化硅或二氧化钛为主要成分的铌组合物和氮化铌氧化物的电介质保护层。