公开(公告)号：US20100014407A1

公开(公告)日：2010-01-21

申请号：US12375167

申请日：2007-07-24

申请人： Masaki Yamamoto ,  Hirohisa Yamada ,  Toshihiko Sakai ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Masanori Shimo ,  Nobuyuki Takamori

发明人： Masaki Yamamoto ,  Hirohisa Yamada ,  Toshihiko Sakai ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Masanori Shimo ,  Nobuyuki Takamori

IPC分类号： G11B7/26 ,  G11B7/00

CPC分类号： G11B7/00455 ,  G11B7/24079

摘要： In an optical information recording medium (1), a light-transmitting layer (10) or a transparent substrate, an information recording layer (20), and a substrate (30) are stacked in this order from a side from which reproducing light (2) enters. The information recording layer (20) includes at least a reproducing film (21) whose complex refractive index at a light source wavelength (λ) of the reproducing light (2) is changed by heat. The relationship of 0.67×(λ/NA)>TP>0.04×(λ/NA) is satisfied, where TP is a track pitch of prepits (31) formed on the substrate (30), and NA is a numerical aperture of an objective lens (55) for converging the reproducing light (2) on the optical information recording medium.

摘要翻译： 在光信息记录介质（1）中，透光层（10）或透明基板，信息记录层（20）和基板（30）以从再现光（ 2）进入。 信息记录层（20）至少包括其再现光（2）的光源波长（λ）的复合折射率由热改变的再现膜（21）。 满足0.67x（λ/ NA）> TP> 0.04x（λ/ NA）的关系，其中TP是在基板（30）上形成的预凹坑（31）的轨道间距，NA是数字孔径 用于将再现光（2）会聚在光学信息记录介质上的物镜（55）。

公开(公告)号：US20090034388A1

公开(公告)日：2009-02-05

申请号：US11922829

申请日：2006-05-31

申请人： Ikuo Nakano ,  Hideharu Tajima ,  Go Mori ,  Masaki Yamamoto ,  Nobuyuki Takamori ,  Michinobu Mieda ,  Masanori Shimo ,  Toshihiko Sakai

发明人： Ikuo Nakano ,  Hideharu Tajima ,  Go Mori ,  Masaki Yamamoto ,  Nobuyuki Takamori ,  Michinobu Mieda ,  Masanori Shimo ,  Toshihiko Sakai

IPC分类号： G11B7/00

CPC分类号： G11B7/13927 ,  G11B7/24038 ,  G11B2007/0006

摘要： There is provided a storage layer (13) between storage layers (11), (15). The storage layer (13) produces a relatively large spherical aberration for a protection layer thickness error. Information is written to or read from the storage layer (13) with a beam of light having a second wavelength. Information is written to or read from the storage layers (11), (15) with a beam of light having a first wavelength (longer than the second wavelength). Accordingly, a multi-format optical storage medium is realized on which information can be recorded or reproduced with a single objective lens. Also, an optical pickup is realized which is capable of recording or reproducing information on the multi-format optical storage medium.

摘要翻译： 在存储层（11），（15）之间设置有存储层（13）。 存储层（13）对于保护层厚度误差产生相对较大的球面像差。 用具有第二波长的光束将信息写入或从存储层（13）读取。 用具有第一波长（长于第二波长）的光束将信息写入或从存储层（11），（15）读取。 因此，实现了可以用单个物镜记录或再现信息的多格式光存储介质。 此外，实现了能够在多格式光存储介质上记录或再现信息的光学拾取器。

公开(公告)号：US20050213479A1

公开(公告)日：2005-09-29

申请号：US11083463

申请日：2005-03-17

申请人： Nobuyuki Takamori ,  Go Mori ,  Hideharu Tajima ,  Masaki Yamamoto

发明人： Nobuyuki Takamori ,  Go Mori ,  Hideharu Tajima ,  Masaki Yamamoto

IPC分类号： G11B7/24 ,  G11B7/004 ,  G11B7/258

CPC分类号： G11B7/24038 ,  G11B7/24 ,  Y10S430/146

摘要： The subject invention achieves further improvement in recording density for an optical information recording medium using a medium super-resolution effect with a super-resolution film, by reduction of the effective spot diameter in a further effective way. According to the optical information recording medium of the present invention, information is recorded on a recording surface of a substrate 5 in the form of phase pits. On the recording surface, an information layer 4, composed of a reflection film 6, a light-absorbing film 3 and a temperature-responsive film 2, is formed. The temperature-responsive film 2 is made of a ZnO film, which is an inorganic super-resolution film whose complex refractive index changes according to intensity of incident light, the film is also superior in a light transmittance property. The light-absorbing film 3 is made of an Si film 3, which absorbs a part of the incident light so that the temperature of the information layer 4 increases. The reflection film 6 is made of an Al film.

摘要翻译： 本发明通过以更有效的方式降低有效光斑直径，使用超分辨率膜的中等超分辨率效果进一步提高了用于光学信息记录介质的记录密度。 根据本发明的光学信息记录介质，信息以相位坑的形式记录在基板5的记录表面上。 在记录表面上形成由反射膜6，光吸收膜3和温度响应膜2构成的信息层4。 温度响应膜2由ZnO膜制成，ZnO膜是复合折射率根据入射光的强度而变化的无机超分辨率膜，该膜也具有优异的透光性。 光吸收膜3由Si膜3制成，其吸收一部分入射光，使得信息层4的温度升高。 反射膜6由Al膜构成。

公开(公告)号：US08400903B2

公开(公告)日：2013-03-19

申请号：US12814331

申请日：2010-06-11

申请人： Hideharu Tajima ,  Masaki Yamamoto ,  Go Mori ,  Nobuyuki Takamori

发明人： Hideharu Tajima ,  Masaki Yamamoto ,  Go Mori ,  Nobuyuki Takamori

IPC分类号： G11B7/24

CPC分类号： G11B7/243 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/1267 ,  G11B7/24 ,  G11B7/24085

摘要： A super-resolution medium (1) has a medium identification information for specifying a type of medium recorded in a medium information area (3) by use of pre-pits having a length not shorter than a length of a resolution limit of an optical system in a reproducing device (10).

公开(公告)号：US08379505B2

公开(公告)日：2013-02-19

申请号：US13425060

申请日：2012-03-20

申请人： Toshihiko Sakai ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Nobuyuki Takamori

发明人： Toshihiko Sakai ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Nobuyuki Takamori

IPC分类号： G11B7/24

CPC分类号： G11B7/007 ,  G11B7/0053 ,  G11B7/00745 ,  G11B7/24 ,  G11B7/24091

摘要： A super-resolution optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus, a super-resolution optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.

摘要翻译： 超分辨率光记录介质包括：记录有介质识别信息的介质信息区域; 记录内容信息的内容区域; 以及设置在所述介质信息区域和所述内容区域之间的空白区域，并且其中设置有至少两个轨道，以便连接所述介质信息区域中的一列预凹坑和所述内容区域中的一列预凹坑。 没有信息记录在空白区域。 因此，提供了一种超分辨率光学记录介质，其中记录有介质识别信息的区域和记录有内容信息的区域在磁道间距上不同，并且当再现从该区域移位时几乎不发生再现错误 将介质识别信息记录在其上记录有内容信息的区域。

公开(公告)号：US20100254247A1

公开(公告)日：2010-10-07

申请号：US12802672

申请日：2010-06-11

申请人： Hideharu Tajima ,  Nobuyuki Takamori ,  Go Mori ,  Masaki Yamamoto

发明人： Hideharu Tajima ,  Nobuyuki Takamori ,  Go Mori ,  Masaki Yamamoto

IPC分类号： G11B7/00

CPC分类号： G11B7/257 ,  G11B7/24 ,  G11B7/243 ,  G11B7/258 ,  G11B2007/24304 ,  G11B2007/2432 ,  G11B2007/2571

摘要： An optical data recording medium, in which irradiation of a light beam is used for recording and/or reproducing data includes (i) a substrate having an a rise and/or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.

摘要翻译： 使用光束的照射用于记录和/或再现数据的光学数据记录介质包括（i）具有作为光入射表面的上升和/或凹部的基板，（ii）反射 层，设置在基板的光入射面上，用于反射光束;（iii）光吸收层，用于转换加热光束的光以在反射层的表面上加热;（iv） ）再现层，其设置在所述热光转换层的表面上，具有根据所述光束的光强度分布而变化的透射率。 光学数据记录介质具有优异的超分辨率特性，并且能够再现更短的标记长度。

公开(公告)号：US20100103807A1

公开(公告)日：2010-04-29

申请号：US12587506

申请日：2009-10-08

申请人： Hideharu Tajima ,  Nobuyuki Takamori ,  Go Mori ,  Masaki Yamamoto

发明人： Hideharu Tajima ,  Nobuyuki Takamori ,  Go Mori ,  Masaki Yamamoto

IPC分类号： G11B7/24

CPC分类号： G11B7/257 ,  G11B7/24 ,  G11B7/243 ,  G11B7/258 ,  G11B2007/24304 ,  G11B2007/2432 ,  G11B2007/2571

摘要： An optical data recording medium, in which irradiation of a light beam is used for recording and/or reproducing data includes (i) a substrate having an a rise and/or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.

公开(公告)号：US07682678B2

公开(公告)日：2010-03-23

申请号：US10804328

申请日：2004-03-18

申请人： Nobuyuki Takamori ,  Hideharu Tajima ,  Go Mori ,  Masaki Yamamoto

发明人： Nobuyuki Takamori ,  Hideharu Tajima ,  Go Mori ,  Masaki Yamamoto

IPC分类号： B32B3/02

CPC分类号： G11B7/243 ,  G11B7/257 ,  Y10T428/21

摘要： An optical information recording medium includes a substrate formed in a concave-convex state by providing pits or grooves corresponding to recorded information, used for optically reproducing the information by irradiation of a light beam, and may also include a recording layer. The optical information recording medium includes a temperature responsive layer 21 whose reflectance and/or transmittance for the light beam changes with an increase in temperature caused by the irradiation of a light beam and a light absorption layer 22. With such an arrangement, the present invention provides an optical information recording medium enabling secure and highly accurate readout of information recorded with high density, a recording method and a readout method using the same, a readout device, and a recording device.

摘要翻译： 光学信息记录介质包括通过提供与记录信息相对应的凹坑或凹槽来形成为凹凸状的基板，用于通过照射光束光学地再现信息，并且还可以包括记录层。 光信息记录介质包括温度响应层21，其温度响应层21，其光束的反射率和/或透射率随着由光束和光吸收层22的照射引起的温度升高而改变。通过这样的布置，本发明 提供了一种能够以高密度记录的信息的安全且高度准确的读出的光学信息记录介质，使用该信息的记录方法和读出方法，读出装置和记录装置。

公开(公告)号：US07618768B2

公开(公告)日：2009-11-17

申请号：US10912028

申请日：2004-08-04

申请人： Masaki Yamamoto ,  Go Mori ,  Hideharu Tajima ,  Nobuyuki Takamori ,  Michinobu Mieda

发明人： Masaki Yamamoto ,  Go Mori ,  Hideharu Tajima ,  Nobuyuki Takamori ,  Michinobu Mieda

IPC分类号： G03F7/00

CPC分类号： G03F7/0017 ,  G03F7/11 ,  G11B7/261 ,  Y10T156/1041

摘要： By using an existing, relatively inexpensive manufacturing device, micropatterns (e.g. guiding grooves, prepits) having such track pitch and pit pitch that are smaller than the diameter of a light spot are formed more finely. There are provided at least two layers, i.e. (i) a resin substrate and (ii) a depressed part inducing layer made of dielectric material or metal oxide. A light beam is radiated and focused onto the depressed part inducing layer so as to form pit parts and/or guiding grooves on irradiated parts of the resin substrate. The depressed part inducing layer is then removed, so as to expose the pit parts and/or guiding grooves.

摘要翻译： 通过使用现有的，相对便宜的制造装置，更细微地形成具有比光点的直径小的轨道间距和凹坑间距的微图案（例如导向槽，预凹坑）。 提供至少两层，即（i）树脂基材和（ii）由介电材料或金属氧化物制成的凹陷部分诱导层。 将光束照射并聚焦到凹陷部诱导层上，以在树脂基板的照射部分上形成凹坑部分和/或引导凹槽。 然后去除凹陷部分诱导层，以露出凹坑部分和/或引导凹槽。

公开(公告)号：US20060192017A1

公开(公告)日：2006-08-31

申请号：US11365126

申请日：2006-02-28

申请人： Hideharu Tajima ,  Masaki Yamamoto ,  Go Mori ,  Nobuyuki Takamori

发明人： Hideharu Tajima ,  Masaki Yamamoto ,  Go Mori ,  Nobuyuki Takamori

IPC分类号： G06K19/00

CPC分类号： G11B7/243 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/256

摘要： An optical information storage medium includes a light transmitting layer, a first information storage layer, an intermediate layer mainly made of resin, a second information storage layer, and a substrate. The light transmitting layer, the first information storage layer, the intermediate layer, the second information storage layer, and the substrate are layered in this order from a reproduction light incident side. Each of the first information storage layer and the second information storage layer includes: a light absorbing film that absorbs reproduction light to generate heat; and a reproduction film that is heated by the heat generated by the light absorbing film so as to reproduce a signal shorter in mark length than a resolution limit of an optical system of a reproducing apparatus.

摘要翻译： 光信息存储介质包括透光层，第一信息存储层，主要由树脂制成的中间层，第二信息存储层和基板。 透光层，第一信息存储层，中间层，第二信息存储层和基板从再现光入射侧依次层叠。 第一信息存储层和第二信息存储层中的每一个包括：吸收再现光以产生热量的光吸收膜; 以及由光吸收膜产生的热量加热的再现膜，以便再现比标记长度短的再现装置的光学系统的分辨率限制的信号。