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1. 发明授权

US06352753B2 Optical recording medium 失效
标题翻译：光记录介质
公开(公告)号：US06352753B2
公开(公告)日：2002-03-05
申请号：US09433059
申请日：1999-11-03
申请人： Toshihisa Nonaka , Kunihisa Nagino , Takeshi Arai , Hideo Nakakuki
发明人： Toshihisa Nonaka , Kunihisa Nagino , Takeshi Arai , Hideo Nakakuki
IPC分类号： B32B302
CPC分类号： G11B7/2578 , G11B7/252 , G11B7/2534 , G11B7/2585 , G11B2007/24304 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25711 , G11B2007/25713 , G11B2007/25715 , G11B2007/25716 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： A rewritable phase change type optical recording medium having excellent in storage durability such as archival property and overwrite shelf property and is less likely to have increased jitters, lower contrast and bursting due to deterioration by repeated overwriting is disclosed. The optical recording medium comprises a first dielectric layer, a first boundary layer and a recording layer, in tis order, wherein the first boundary layer is in contact with the recording layer. The information in the optical recording medium can be recorded, erased and reproduced by irradiating the recording layer with light. The recording and erasure of information are affected by reversible phase change between amorphous phase and crystalline phase of the recording layer. The first boundary layer comprises a material comprising an oxide, a carbide, a nitride of one or more elements (excluding carbon) belonging to a group 3A through group 6B of the 2nd period through the 6th period in the periodic table; carbon; or a compound with carbon and oxygen and/or nitrogen.
摘要翻译：公开了一种具有优异的存储性能和重写搁架性能的存储耐久性优异的可重写相变型光学记录介质，并且不太可能由于重复重写而导致的抖动增加，较低的对比度和破裂。该光记录介质包括第一介质层，第一边界层和记录层，其中第一边界层与记录层接触。通过用光照射记录层，可以记录，擦除和再现光学记录介质中的信息。信息的记录和擦除受到记录层的非晶相和结晶相之间的可逆相变的影响。第一边界层包括属于周期表中第二周期至第六周期的第3A至第6B组的一种或多种元素（不包括碳）的氧化物，碳化物，氮化物的材料; 碳; 或具有碳和氧和/或氮的化合物。

2. 发明授权

US06406771B1 Optical recording medium and optical recording apparatus 失效
标题翻译：光记录介质和光记录装置
公开(公告)号：US06406771B1
公开(公告)日：2002-06-18
申请号：US09692458
申请日：2000-10-20
申请人： Hideo Nakakuki , Takeshi Arai , Toshihisa Nonaka
发明人： Hideo Nakakuki , Takeshi Arai , Toshihisa Nonaka
IPC分类号： B32B302
CPC分类号： G11B7/006 , G11B7/00454 , G11B7/007 , G11B7/24 , G11B7/24085 , G11B7/243 , G11B7/2534 , G11B7/2585 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/25711 , G11B2007/25713 , G11B2007/25715 , Y10T428/21
摘要： The object of this invention is to provide a rewritable phase change type optical recording medium and an optical recording apparatus that are good in erasure characteristics and small in jitter even in high linear velocity high density recording, are unlikely to cause cross erasure even in the use of a substrate with a narrow track width, are unlikely to be deteriorated in signal quality even after repeated irradiation with a laser beam, and are good also in storage durability. The object of this invention can be achieved by a phase change type optical recording medium, characterized in that at least a first dielectric layer, a first boundary layer, a recording layer, a second boundary layer, an absorption correction layer and a reflection layer are provided in this order on a substrate, that the recording layer has a specific composition, that the first and second boundary layers are respectively mainly composed of at least one selected from carbon, carbides, oxides and nitrides, and that the absorption correction layer is 1.0 to 4.0 in refractive index and 0.5 to 3.0 in attenuation coefficient.
摘要翻译：本发明的目的是提供即使在高线速度高密度记录中也具有良好的擦除特性和抖动小的可重写相变型光学记录介质和光学记录装置，即使在使用中也不会引起交叉擦除具有窄轨道宽度的基板，即使在用激光束重复照射之后也不可能劣化信号质量，并且也具有良好的储存耐久性。本发明的目的可以通过相变型光学记录介质其特征在于，至少第一介电层，第一边界层，记录层，第二边界层，吸收校正层和反射层依次设置在基板上，记录层具有特定的组成第一和第二边界层分别主要由选自碳，碳化物，氧化物和氮化物中的至少一种构成吸收校正层的折射率为1.0〜4.0，衰减系数为0.5〜3.0。

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