公开(公告)号：US06661745B1

公开(公告)日：2003-12-09

申请号：US09537235

申请日：2000-03-28

申请人： Junji Tominaga ,  Nobufumi Atoda ,  Hiroshi Fuji ,  Hiroyuki Katayama ,  Kenji Ohta

发明人： Junji Tominaga ,  Nobufumi Atoda ,  Hiroshi Fuji ,  Hiroyuki Katayama ,  Kenji Ohta

IPC分类号： G11B700

CPC分类号： B82Y10/00 ,  G11B7/1387 ,  G11B7/24065 ,  G11B11/10584 ,  G11B11/10586

摘要： An optical device and a recording medium are provided with a recording layer for recording information by radiation of light, and a mask layer which is formed closely to the recording layer, reduces its transmittance of light due to light or heat, and transmits light to the recording layer by using a near-field effect. An optical reproducing and recording method includes the steps of: emitting a laser beam onto the mask layer, generating a near field around an area of the mask layer that has transmittance being reduced by the laser beam, and reproducing or recording optical information in the recording layer by interaction between the near field and the recording layer. With this method, it is possible to provide the optical device, recording medium, and optical reproducing and recording method that can realize a high S/N ratio upon reproducing and recording and that can readily form a recording mark.

摘要翻译： 光学器件和记录介质设置有用于通过照射光来记录信息的记录层和与记录层紧密相邻形成的掩模层，减少其由于光或热导致的光的透射率，并将光透射到 记录层通过使用近场效应。 光学再现和记录方法包括以下步骤：将激光束发射到掩模层上，产生围绕掩模层的区域的近场，该区域具有通过激光束减少的透射率，以及在记录中再现或记录光学信息 通过近场和记录层之间的相互作用来形成层。 利用这种方法，可以提供在再现和记录时可以实现高S / N比并且可以容易地形成记录标记的光学设备，记录介质和光学再现和记录方法。

公开(公告)号：US06819648B1

公开(公告)日：2004-11-16

申请号：US09585554

申请日：2000-06-02

申请人： Junji Tominaga ,  Nobufumi Atoda ,  Hiroshi Fuji ,  Hiroyuki Katayama ,  Kenji Ohta

发明人： Junji Tominaga ,  Nobufumi Atoda ,  Hiroshi Fuji ,  Hiroyuki Katayama ,  Kenji Ohta

IPC分类号： G11B700

CPC分类号： G11B7/252 ,  B82Y10/00 ,  G11B7/24065 ,  G11B7/243 ,  G11B7/2534 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716

摘要： An optical sample includes a mask layer made of a material in which an aperture is produced by a chemical change, which is reversible, upon application of heat or light, and a recording layer provided at a position where an evanescent field produced in the aperture when light is applied to the mask layer can reach. Since the aperture is produced in the mask layer by a chemical change, it can be opened and closed at a high speed and hence a high-speed transfer of information can be achieved.

摘要翻译： 光学样品包括掩模层，其由其中通过化学变化产生孔的材料制成，其在施加热或光时是可逆的，以及设置在在孔中产生的ev逝场的位置处的记录层， 光应用于掩模层可以达到。 由于通过化学变化在掩模层中产生孔径，所以可以高速地打开和关闭孔，因此可以实现高速的信息传递。

公开(公告)号：US06741549B2

公开(公告)日：2004-05-25

申请号：US09922026

申请日：2001-07-10

申请人： Junji Tominaga ,  Jooho Kim ,  Nobufumi Atoda ,  Hiroshi Fuji ,  Hiroyuki Katayama

发明人： Junji Tominaga ,  Jooho Kim ,  Nobufumi Atoda ,  Hiroshi Fuji ,  Hiroyuki Katayama

IPC分类号： G11B370

CPC分类号： B82Y10/00 ,  G11B7/126 ,  G11B11/10508 ,  G11B11/10515 ,  G11B11/10545 ,  G11B11/10584 ,  G11B11/10593 ,  G11B11/10595

摘要： An optical recording medium in accordance with the present invention is provided with a substrate, a mask layer, provided on the substrate, whose index of refraction changes due to light or heat of the substrate, and a recording layer that is provided away from the mask layer by a distance that is not more than a distance which allows the near-field light to reach. The mask layer generates a minute opaque region in a light spot and the recording layer is a magneto-optical layer. An optical recording and reproduction apparatus in accordance with the present invention uses the optical recording medium. This allows to provide an optical recording medium and an optical recording and reproduction apparatus that can suppress the erasure of recorded marks and carry out the reproduction again and again.

摘要翻译： 根据本发明的光记录介质设置有设置在基板上的基板，掩模层，其折射率由于基板的光或热而变化，以及远离掩模设置的记录层 层距离不大于允许近场光到达的距离。 掩模层在光点中产生微小的不透明区域，记录层是磁光层。 根据本发明的光学记录和再现装置使用光学记录介质。 这允许提供可以抑制记录标记的擦除并且一次又一次地执行再现的光学记录介质和光学记录和再现装置。

公开(公告)号：US20060156986A1

公开(公告)日：2006-07-20

申请号：US11368410

申请日：2006-03-07

申请人： Takashi Hiraga ,  Tetsuo Moriya ,  Qiying Chen ,  Junji Tominaga ,  Nobufumi Atoda ,  Norio Tanaka ,  Hiromitsu Yanagimoto ,  Ichiro Ueno ,  Koji Tsujita

发明人： Takashi Hiraga ,  Tetsuo Moriya ,  Qiying Chen ,  Junji Tominaga ,  Nobufumi Atoda ,  Norio Tanaka ,  Hiromitsu Yanagimoto ,  Ichiro Ueno ,  Koji Tsujita

IPC分类号： B28B7/38 ,  C23C16/00

CPC分类号： C23C14/12 ,  C23C14/24 ,  C23C14/562 ,  C23C14/566

摘要： An organic compound having an affinity for a resin of a molded resin article and sublimation properties is allowed to penetrate/disperse into the surface of the molded resin article, thereby modifying and/or coloring a resin surface layer. The molded resin article and the organic compound having the affinity for the resin and the sublimation properties are put into a tightly closable container, and the pressure and the temperature in the container are adjusted to place them in a saturated sublimation pressure state of the organic compound, whereby a vapor of the organic compound is uniformly deposited on the surface of the molded resin article and it further penetrates/disperses into the resin surface layer, and in consequence, the resin surface layer can be modified and/or colored. In addition, the modification of the resin surface layer permits imparting a function thereto.

公开(公告)号：US06498776B1

公开(公告)日：2002-12-24

申请号：US09494180

申请日：2000-01-31

申请人： Takashi Nakano ,  Junji Tominaga ,  Nobufumi Atoda ,  Akira Sato ,  Takuji Hatano

发明人： Takashi Nakano ,  Junji Tominaga ,  Nobufumi Atoda ,  Akira Sato ,  Takuji Hatano

IPC分类号： G11B7135

CPC分类号： G01Q60/22 ,  G11B7/1387

摘要： A near field light emitting element has a first film made of e.g. Al, an intermediate film made of e.g. SiN and a second film made of e.g. Al on an emergent surface of a solid immersion lens made of a high-refractive material. A first hole is made in the first film, and a second hole is made in the second film. The second hole is smaller in area than the first hole.

摘要翻译： 近场发光元件具有由例如玻璃制成的第一膜。 Al，例如由中间膜制成的中间膜。 SiN和由例如硅胶制成的第二膜。 Al在由高折射材料制成的固体浸没透镜的紧急表面上。 在第一膜中形成第一孔，在第二膜中形成第二孔。 第二个孔的面积小于第一个孔。

公开(公告)号：US07016290B2

公开(公告)日：2006-03-21

申请号：US10270047

申请日：2002-10-15

申请人： Takashi Nakano ,  Hisako Fukuda ,  Junji Tominaga ,  Nobufumi Atoda ,  Takashi Kikukawa

发明人： Takashi Nakano ,  Hisako Fukuda ,  Junji Tominaga ,  Nobufumi Atoda ,  Takashi Kikukawa

IPC分类号： G11B7/00

CPC分类号： B82Y10/00 ,  G11B7/0052 ,  G11B7/135 ,  G11B7/1356 ,  G11B7/24085

摘要： In an optical information medium comprising an information recording layer having a mark train of marks and spaces, the mark train is read out by scanning it with a laser beam and detecting a light intensity change pattern of reflected laser beam. Provided that the reflected laser beam includes polarized light components which define an angle θ with the mark train, a polarized light component giving θ=0 is x0 component, and a polarized light component giving θ=90° is y0 component, the mark train is read out utilizing at least a light intensity change of x0 component. When pits or recorded marks having a size approximate to or below the resolution limit are read out, the present invention allows high read outputs to be obtained and prevents omission of readout signals.

摘要翻译： 在包括具有标记和空格的标记列的信息记录层的光学信息介质中，通过用激光束扫描并检测反射的激光束的光强度变化图案来读出标记列。 假设反射的激光束包括与标记列限定角度θ的偏振光分量，则给出θ= 0的偏振光分量是x 0分量，并且给出θ= 90°的偏振光分量 是零分量，则利用至少x 0分量的光强度变化来读出标记列。 当读出尺寸接近或低于分辨率极限的凹坑或记录标记时，本发明允许获得高读取输出并且防止省略读出信号。

公开(公告)号：US06319582B1

公开(公告)日：2001-11-20

申请号：US09506322

申请日：2000-02-18

申请人： Junji Tominaga ,  Nobufumi Atoda

发明人： Junji Tominaga ,  Nobufumi Atoda

IPC分类号： B32B302

CPC分类号： G11B7/257 ,  B82Y10/00 ,  G11B7/005 ,  G11B7/24 ,  G11B7/243 ,  G11B2007/24306 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

摘要： Disclosed is an optical recording layer in which the microaperture for reproducing optical near-field light is controllable so as to read out the optical near-field signals with stability by keeping the signal-reproducing head at a height safe from crashing with the recording medium even when the recording marks are smaller than 100 nm. The optical recording medium is a layered body comprising: (a) a transparent substrate; (b) a first protective layer formed on the substrate; (c) an optically or thermally active layer, which is capable of reversibly generating a micro-aperture by application of light or heat, formed on the first protective layer; (d) a second protective layer, which is under a compressive stress of 200 MPa to 1 GPa, formed on the active layer; (e) an optical recording layer formed on the second protective layer; and (f) a third protective layer formed on the optical recording layer.

摘要翻译： 公开了一种光学记录层，其中用于再现光学近场光的微孔可以被控制，以便通过将信号重放头保持在高度上而不会与记录介质碰撞，从而稳定地读出光学近场信号 当记录标记小于100nm时。 光记录介质是层叠体，其包括：（a）透明基板; （b）形成在所述基板上的第一保护层; （c）光学或热活性层，其能够通过施加光或热而可逆地产生形成在第一保护层上的微孔; （d）形成在活性层上的处于200MPa〜1GPa的压缩应力的第二保护层; （e）形成在第二保护层上的光学记录层; 和（f）形成在光学记录层上的第三保护层。

公开(公告)号：US07078072B1

公开(公告)日：2006-07-18

申请号：US09913315

申请日：2000-03-31

申请人： Takashi Hiraga ,  Tetsuo Moriya ,  Qiying Chen ,  Junji Tominaga ,  Nobufumi Atoda ,  Norio Tanaka ,  Hiromitsu Yanagimoto ,  Ichiro Ueno ,  Koji Tsujita

发明人： Takashi Hiraga ,  Tetsuo Moriya ,  Qiying Chen ,  Junji Tominaga ,  Nobufumi Atoda ,  Norio Tanaka ,  Hiromitsu Yanagimoto ,  Ichiro Ueno ,  Koji Tsujita

IPC分类号： B32B7/38 ,  C23C16/00

CPC分类号： C23C14/12 ,  C23C14/24 ,  C23C14/562 ,  C23C14/566

摘要： An organic compound having an affinity for a resin of a molded resin article and sublimation properties is allowed to penetrate/disperse into the surface of the molded resin article, thereby modifying and/or coloring a resin surface layer. The molded resin article and the organic compound having the affinity for the resin and the sublimation properties are put into a tightly closable container, and the pressure and the temperature in the container are adjusted to place them in a saturated sublimation pressure state of the organic compound, whereby a vapor of the organic compound is uniformly deposited on the surface of the molded resin article and it further penetrates/disperses into the resin surface layer, and in consequence, the resin surface layer can be modified and/or colored. In addition, the modification of the resin surface layer permits imparting a function thereto.

摘要翻译： 对模塑树脂制品的树脂具有亲和性的有机化合物和升华性能被允许渗透/分散到模制树脂制品的表面中，从而改性和/或着色树脂表面层。 将树脂成型品和对树脂具有亲和性的有机化合物和升华性进入紧密封闭的容器中，调节容器内的压力和温度，使其成为有机化合物的饱和升华压力状态 由此，有机化合物的蒸气均匀地沉积在模制树脂制品的表面上，并且进一步渗透/分散到树脂表面层中，因此树脂表面层可以被改性和/或着色。 此外，树脂表面层的改性允许赋予其功能。

公开(公告)号：US06901036B2

公开(公告)日：2005-05-31

申请号：US09942036

申请日：2001-08-30

申请人： Junji Tominaga ,  Takashi Nakano ,  Nobufumi Atoda ,  Akira Sato ,  Manami Kuiseko ,  Takashi Kikukawa

发明人： Junji Tominaga ,  Takashi Nakano ,  Nobufumi Atoda ,  Akira Sato ,  Manami Kuiseko ,  Takashi Kikukawa

IPC分类号： G11B7/005 ,  G11B7/013 ,  G11B7/13 ,  G11B7/135 ,  G11B7/00

CPC分类号： G11B7/131 ,  G11B7/1381 ,  G11B7/24085

摘要： An apparatus for reproducing information stored in an optical recording medium which comprises marks or pits which are arranged at a pitch less than λ/2NA, wherein λ is a wavelength of light used for reproduction and NA is an numerical aperture of an objective lens. The apparatus generally comprises a laser diode, a polarization beam splitter, an objective lens, beam splitters, a low-frequency light detecting system with a photodetector, a high-frequency light detecting system with a photodetector, and a signal processing circuit for combining detection signals from the photodetectors. In the high-frequency light detecting system, before a convergent lens, a shielding band is provided so as to shield the middle of a bundle of rays of reproduction light.

摘要翻译： 一种用于再现存储在光学记录介质中的信息的装置，包括以小于λ/ 2NA的间距排列的标记或凹坑，其中λ是用于再现的光的波长，NA是物镜的数值孔径。 该装置通常包括激光二极管，偏振分束器，物镜，分束器，具有光电检测器的低频光检测系统，具有光电检测器的高频光检测系统，以及用于组合检测的信号处理电路 来自光电探测器的信号。 在高频光检测系统中，在会聚透镜之前，设置屏蔽带以屏蔽再生光束的中间。

公开(公告)号：US06226258B1

公开(公告)日：2001-05-01

申请号：US09256103

申请日：1999-02-24

申请人： Junji Tominaga ,  Takashi Nakano ,  Nobufumi Atoda

发明人： Junji Tominaga ,  Takashi Nakano ,  Nobufumi Atoda

IPC分类号： G11B370

CPC分类号： G11B7/252 ,  G11B7/24 ,  G11B7/243 ,  G11B7/2531 ,  G11B7/2534 ,  G11B7/257 ,  G11B2007/24306 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

摘要： Disclosed is a novel optical recording medium which is a multi-layered body comprising: (a) a substrate disk of a transparent material; (b) a first protective layer formed on one surface of the substrate disk; (c) a recording layer formed on the first protective layer, which is made from a material capable of causing a change in the optical properties in response to light or heat; (d) a second protective layer formed on the recording layer; (e) a transmissivity-controlling layer formed on the second protective layer, which is made from a material capable of reversibly and continuously causing a change in the optical properties in response to light or heat at a speed higher than the speed of changes in the recording layer; and, optionally, (f) a third protective layer formed on the transmissivity-controlling layer. Method and apparatus for recording of signals and reproduction of recorded signals by using the above defined optical recording medium are also disclosed.

摘要翻译： 公开了一种新型的光记录介质，它是一种多层体，它包括：（a）透明材料的基片盘; （b）形成在基板盘的一个表面上的第一保护层; （c）形成在第一保护层上的记录层，其由能够引起光或热的光学特性变化的材料制成; （d）形成在记录层上的第二保护层; （e）形成在所述第二保护层上的透射率控制层，其由能够可逆地且连续地以高于所述第二保护层的变化速度的速度响应于光或热而导致的光学特性的变化的材料制成 记录层 和（f）形成在透射率控制层上的第三保护层。 还公开了通过使用上述定义的光记录介质来记录信号和再现记录信号的方法和装置。