公开(公告)号：US20090022931A1

公开(公告)日：2009-01-22

申请号：US12176170

申请日：2008-07-18

申请人： Seiji MORITA ,  Koji TAKAZAWA ,  Kazuyo UMEZAWA ,  Naoki MORISHITA ,  Naomasa NAKAMURA

发明人： Seiji MORITA ,  Koji TAKAZAWA ,  Kazuyo UMEZAWA ,  Naoki MORISHITA ,  Naomasa NAKAMURA

IPC分类号： G11B7/24

CPC分类号： G11B7/24079 ,  G11B7/0053 ,  G11B7/24082 ,  G11B7/247 ,  G11B7/2495

摘要： According to one embodiment, an information recording medium including a recording film using an organic recording material recorded by recording light having a wavelength of 405 nm and an organic recording material whose light reflection quantity varies by reproducing light having a wavelength of 650 nm for a recording layer and an optical reflection layer and a land sandwiched between a pre-groove having an irregular shape and an adjoining pre-groove is provided on an interface between the recording layer and the optical reflection layer.

摘要翻译： 根据一个实施例，一种信息记录介质，包括使用通过记录波长为405nm的光记录的有机记录材料的记录膜和通过再现具有650nm波长的光而使光反射量变化的有机记录材料用于记录 层和光反射层，并且在记录层和光反射层之间的界面上设置有夹在具有不规则形状的预制槽和相邻预制槽之间的焊盘。

公开(公告)号：US20080247304A1

公开(公告)日：2008-10-09

申请号：US12021126

申请日：2008-01-28

申请人： Kazuyo Umezawa ,  Seiji Morita ,  Koji Takazawa ,  Hideo Ando ,  Naomasa Nakamura ,  Naoki Morishita

发明人： Kazuyo Umezawa ,  Seiji Morita ,  Koji Takazawa ,  Hideo Ando ,  Naomasa Nakamura ,  Naoki Morishita

IPC分类号： G11B7/26

CPC分类号： G11B7/2495 ,  G11B7/2467 ,  G11B7/2492 ,  G11B7/259

摘要： According to one embodiment, when recording information by using a semiconductor laser at 450 nm or less, an information recording medium satisfies 9.5×10−8≧λ/(X*NA)≧4.6×10−8 (where X is the linear recording velocity, λ is the laser wavelength, and NA is the numerical aperture).

摘要翻译： 根据一个实施例，当通过使用450nm或更小的半导体激光器记录信息时，信息记录介质满足<？in-line-formula description =“In-line Formulas”end =“lead”？> 9.5x10 ^{-8 > = lambda /（X * NA）> = 4.6×10 -8 <？in-line-formula description =“In-line Formulas”end =“tail”？ >（其中X是线性记录速度，λ是激光波长，NA是数值孔径）。}

公开(公告)号：US20080151728A1

公开(公告)日：2008-06-26

申请号：US11960383

申请日：2007-12-19

申请人： Keiichiro Yusu ,  Naomasa Nakamura ,  Nobuhisa Yoshida ,  Yasuaki Ootera

发明人： Keiichiro Yusu ,  Naomasa Nakamura ,  Nobuhisa Yoshida ,  Yasuaki Ootera

IPC分类号： G11B7/20

CPC分类号： G11B7/24038 ,  G11B7/2585 ,  G11B7/259

摘要： An optical disc is provided which realizes desired optical properties, which has a transmissive reflection layer causing no deformation and the like of minute convex pits, and which can realize superior reproduction properties even when high density recording is performed. The above optical disc has at least three information layers independent with respect to a light incident surface, and a reflection layer formed on an information layer other than the layers most close to and most far from the light incident surface has a thickness of 5 to 20 nm and has a refractive index of 3.0 or more and an extinction coefficient of 0.6 or less with respect to the wavelength of incident laser light. This reflection layer is preferably composed of at least one material selected from the group consisting of Si, a SiCr alloy, a SiNb alloy, a SiW alloy, and SiC.

摘要翻译： 提供了实现期望的光学特性的光盘，其具有不产生微小凹坑的变形等的透射反射层，并且即使在执行高密度记录时也可以实现优异的再现特性。 上述光盘具有与光入射面独立的至少三个信息层，形成在信息层以外的反射层，其除了与光入射面最近且最远的层以外的信息层的厚度为5〜20 并且相对于入射激光的波长具有3.0以上的折射率和0.6以下的消光系数。 该反射层优选由选自Si，SiCr合金，SiNb合金，SiW合金和SiC中的至少一种材料构成。

公开(公告)号：US20080002562A1

公开(公告)日：2008-01-03

申请号：US11768570

申请日：2007-06-26

申请人： Seiji Morita ,  Koji Takazawa ,  Kazuyo Umezawa ,  Naoki Morishita ,  Naomasa Nakamura

发明人： Seiji Morita ,  Koji Takazawa ,  Kazuyo Umezawa ,  Naoki Morishita ,  Naomasa Nakamura

IPC分类号： G11B7/24

CPC分类号： G11B7/263 ,  G11B7/0053 ,  G11B7/24038 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/246 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/2495 ,  G11B7/259 ,  G11B7/266

摘要： According to one embodiment, in a multilayered write once information recording medium, the light reflectance of a recording mark formed in a first recording film by irradiation with a short-wavelength laser beam is higher than a light reflectance before irradiation with the short-wavelength laser beam, the light reflectance of a recording mark formed in a second recording film by irradiation with the short-wavelength laser beam is higher or lower than a light reflectance before irradiation with the short-wavelength laser beam, and the light reflectance of a recording mark formed in a third recording film, which is arbitrarily formed, by irradiation with the short-wavelength laser beam is higher or lower than a light reflectance before irradiation with the short-wavelength laser beam.

摘要翻译： 根据一个实施例，在多层一次写入信息记录介质中，通过短波长激光束照射形成在第一记录膜中的记录标记的光反射率高于用短波长激光照射之前的光反射率 通过用短波长激光束照射形成在第二记录膜中的记录标记的光反射率高于或低于用短波长激光束照射之前的光反射率，以及记录标记的光反射率 通过短波长激光束的照射而任意形成的第三记录膜形成在与短波长激光束照射之前的光反射率以上。

公开(公告)号：US20070298207A1

公开(公告)日：2007-12-27

申请号：US11820339

申请日：2007-06-19

申请人： Keiichiro Yusu ,  Naomasa Nakamura ,  Nobuhisa Yoshida ,  Koji Takazawa ,  Seiji Morita ,  Hideo Ando

发明人： Keiichiro Yusu ,  Naomasa Nakamura ,  Nobuhisa Yoshida ,  Koji Takazawa ,  Seiji Morita ,  Hideo Ando

IPC分类号： B32B3/02

CPC分类号： G11B7/24038 ,  G11B7/2467 ,  G11B7/249 ,  G11B7/259 ,  G11B7/268

摘要： According to one embodiment, a single-sided, multilayered optical disc which performs recording and playback when irradiated with a laser beam having a predetermined wavelength, and has at least two recording layers that are independent of each other with respect to the light incident surface, a reflecting layer farthest from the light incident surface contains an Ag alloy, and has a light absorbance of 20% (inclusive) to 50% (inclusive) to a laser beam and/or a thermal conductivity of 50 (inclusive) to 250 (inclusive) W/m·K.

摘要翻译： 根据一个实施例，一种单面多层光盘，其在用具有预定波长的激光束照射时执行记录和重放，并且具有相对于光入射表面彼此独立的至少两个记录层， 离光入射面最远的反射层含有Ag合金，并且对激光束的吸光度为20％（含）〜50％（含），和/或导热系数为50（含）以上且250以下 ）W / mK

公开(公告)号：US20070280094A1

公开(公告)日：2007-12-06

申请号：US11756151

申请日：2007-05-31

申请人： Koji Takazawa ,  Seiji Morita ,  Kazuyo Umezawa ,  Naoki Morishita ,  Yasuaki Ootera ,  Hideo Ando ,  Naomasa Nakamura

发明人： Koji Takazawa ,  Seiji Morita ,  Kazuyo Umezawa ,  Naoki Morishita ,  Yasuaki Ootera ,  Hideo Ando ,  Naomasa Nakamura

IPC分类号： G11B7/24

CPC分类号： G11B7/00736 ,  G11B7/00456 ,  G11B7/0053 ,  G11B7/24038 ,  G11B7/246 ,  G11B7/257 ,  G11B20/1217 ,  G11B2020/122 ,  G11B2020/1298 ,  G11B2220/235 ,  G11B2220/237 ,  G11B2220/2579

摘要： According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, in this optical recording medium, an intermediate layer whose thickness variation is managed to be equal to or less than a predetermined value is provided between a first recording part and a second recording part.

摘要翻译： 根据一个实施例，提供了一种光记录介质，其中层间串扰低，并且其中可以获得稳定和高质量的记录特性。 为此，在这种光记录介质中，在第一记录部分和第二记录部分之间设置厚度变化被控制在等于或小于预定值的中间层。

公开(公告)号：US07291375B2

公开(公告)日：2007-11-06

申请号：US11453855

申请日：2006-06-16

申请人： Tsukasa Nakai ,  Sumio Ashida ,  Keiichiro Yusu ,  Takayuki Tsukamoto ,  Noritake Oomachi ,  Naomasa Nakamura ,  Urara Ichihara, legal representative

发明人： Katsutaro Ichihara, deceased

IPC分类号： B32B3/02

CPC分类号： G11B7/252 ,  G11B7/24038 ,  G11B7/243 ,  G11B7/2437 ,  G11B7/2534 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2571 ,  G11B2007/25711 ,  G11B2007/25715 ,  Y10T428/21

摘要： A phase-change optical recording medium has a phase-change recording film to which recording and erasure can be reversibly performed by irradiation with light, and at least one dielectric film formed of a SiOC film containing Si, O and C, and having a carbon concentration within a range of between 0.1 and 30 atomic %.

公开(公告)号：US20070178272A1

公开(公告)日：2007-08-02

申请号：US11669406

申请日：2007-01-31

申请人： Tsukasa NAKAI ,  Noritake Oomachi ,  Sumio Ashida ,  Naomasa Nakamura ,  Keiichiro Yusu ,  Yasuhiro Satoh

发明人： Tsukasa NAKAI ,  Noritake Oomachi ,  Sumio Ashida ,  Naomasa Nakamura ,  Keiichiro Yusu ,  Yasuhiro Satoh

IPC分类号： B32B3/02

CPC分类号： G11B7/24038 ,  G11B7/2578 ,  G11B7/266 ,  G11B2007/0013 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  Y10T428/21

摘要： According to one embodiment, in a phase change optical disk which has a substrate and a multi-layered including an interference film, phase change recording film, interface film, and reflecting film, and in which information is reversibly recorded in or erased from the recording film by using light, an element (e.g., Ge or Te) forming the phase change recording film has segregation or a concentration distribution in the thickness direction of the recording film from a portion in contact with the phase change recording film.

摘要翻译： 根据一个实施例，在具有基板和包括干涉膜，相变记录膜，界面膜和反射膜的多层的相变光盘中，其中信息被可逆地记录在记录或从记录中被擦除 通过使用光，形成相变记录膜的元件（例如，Ge或Te）从与相变记录膜接触的部分在记录膜的厚度方向上具有偏析或浓度分布。

公开(公告)号：US20070148396A1

公开(公告)日：2007-06-28

申请号：US11709186

申请日：2007-02-22

申请人： Tsukasa Nakai ,  Sumio Ashida ,  Keiichiro Yusu ,  Takayuki Tsukamoto ,  Noritake Oomachi ,  Naomasa Nakamura ,  Katsutaro Ichihara

发明人： Tsukasa Nakai ,  Sumio Ashida ,  Keiichiro Yusu ,  Takayuki Tsukamoto ,  Noritake Oomachi ,  Naomasa Nakamura ,  Katsutaro Ichihara

IPC分类号： B32B3/02

CPC分类号： G03G9/097 ,  G03G5/147 ,  G03G5/14726 ,  G03G5/14756 ,  G03G9/0821 ,  G11B7/2403 ,  G11B7/24038 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24306 ,  G11B2007/24308 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24328 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25711 ,  G11B2007/25713 ,  G11B2007/25715 ,  Y10T428/21

摘要： A phase-change optical recording medium has a recording film that brings about reversible phase-change between a crystalline phase and an amorphous phase upon irradiation with light and an interface film formed in contact with at least one surface of the recording film and comprising hafnium (Hf), silicon (Si), oxygen (O) and carbon (C).

公开(公告)号：US20060291370A1

公开(公告)日：2006-12-28

申请号：US11448877

申请日：2006-06-08

申请人： Tsukasa Nakai ,  Noritake Oomachi ,  Sumio Ashida ,  Naomasa Nakamura ,  Keiichiro Yusu ,  Yasuhiro Satoh

发明人： Tsukasa Nakai ,  Noritake Oomachi ,  Sumio Ashida ,  Naomasa Nakamura ,  Keiichiro Yusu ,  Yasuhiro Satoh

IPC分类号： G11B3/70

CPC分类号： G11B7/257 ,  G11B7/24038 ,  G11B7/243 ,  G11B7/256 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/24322

摘要： In a single-sided, recordable/rewritable phase change optical recording medium having one or more layers, an interface layer adjacent to a phase change optical recording film contains at least Zr (zirconium), O (oxygen), and N (nitrogen), and further contains one or both of Y (yttrium) and Nb (niobium).

摘要翻译： 在具有一个或多个层的单面，可记录/可重写的相变光学记录介质中，与相变光学记录膜相邻的界面层至少含有Zr（锆），O（氧）和N（氮） 并且还含有Y（钇）和Nb（铌）中的一种或两种。