公开(公告)号：US07835249B2

公开(公告)日：2010-11-16

申请号：US11779670

申请日：2007-07-18

申请人： Yoshihisa Usami ,  Kazuyuki Masukane

发明人： Yoshihisa Usami ,  Kazuyuki Masukane

IPC分类号： G11B7/0065

CPC分类号： G11B7/0065 ,  G03H1/04 ,  G03H1/041 ,  G03H1/0465 ,  G03H2223/17 ,  G11B7/083 ,  G11B7/1365 ,  G11B7/24044 ,  G11B7/245 ,  G11B7/266

摘要： The present invention provides an optical recording method and an optical recording apparatus for holographically recording information allowing for reductions in uneven consumption of the material through the thickness of a recording layer during recording to achieve high density recording and an increased recording capacity, an optical recording medium, and an optical reproducing method and an optical reproducing apparatus using the optical recording method. The optical recording method includes irradiating the optical recording medium with an information beam and a reference beam, dividing at least one of the information beam and the reference beam into two or more between a light source thereof and an optical recording medium, and adjusting the optical path lengths of the divided information beams and reference beams so that they focus on points different from each other through the thickness of the recording layer.

摘要翻译： 本发明提供了一种全息记录信息的光学记录方法和光学记录装置，它允许在记录期间通过记录层的厚度减少材料的不均匀消耗以实现高密度记录和增加的记录容量，光学记录介质 ，以及使用光学记录方法的光学再现方法和光学再现装置。 光学记录方法包括用信息光束和参考光束照射光学记录介质，将信息光束和参考光束中的至少一个在其光源和光学记录介质之间分成两个或更多个，并且调整光学 划分的信息光束和参考光束的路径长度，使得它们通过记录层的厚度聚焦在彼此不同的点上。

公开(公告)号：US20100246191A1

公开(公告)日：2010-09-30

申请号：US12724851

申请日：2010-03-16

申请人： Shotaro Ogawa ,  Yoshihisa Usami

发明人： Shotaro Ogawa ,  Yoshihisa Usami

IPC分类号： F21V13/04 ,  B29C41/22

CPC分类号： B29C39/006 ,  B29C39/148 ,  B29C39/18 ,  B29C39/24 ,  B29D11/0073 ,  B29L2011/00 ,  B29L2011/0016

摘要： An optical sheet including a first layer having a concavo-convex pattern which reflects light, and a second layer laminated over the concavo-convex pattern and made of a light-transmissive material, wherein the optical sheet is disposed opposite to a light-emitting surface of a light-emitting element.

摘要翻译： 一种光学片，包括具有反射光的凹凸图案的第一层和层叠在所述凹凸图案上并由透光材料制成的第二层，其中所述光学片与发光表面相对地设置 的发光元件。

公开(公告)号：US20090231972A1

公开(公告)日：2009-09-17

申请号：US12158622

申请日：2006-11-30

申请人： Yoshihisa Usami

发明人： Yoshihisa Usami

IPC分类号： G11B20/00 ,  G11B7/26

CPC分类号： G11B7/24044 ,  G03H1/0252 ,  G03H2250/32 ,  G03H2250/34 ,  G03H2250/42 ,  G11B7/00781 ,  G11B7/095 ,  G11B7/24038 ,  G11B7/24079

摘要： An optical information recording medium is provided with a substrate having a pregroove formed on one main plane; a reflecting layer arranged on the one main plane of the substrate and reflecting an access controlling laser beam; a selective reflecting layer arranged on the reflecting layer, transmitting the access controlling laser beam and reflecting a recording laser beam; a recording layer arranged on the selective reflecting layer for having information recorded thereon by the recording laser beam; and a reflection preventing layer arranged on the recoding layer. On the substrate, a dummy groove having a shape similar to that of the pregroove is formed on forming regions adjacent to an effective access region on the one main plane.

摘要翻译： 光学信息记录介质设置有在一个主平面上形成有预制槽的基板; 反射层，设置在所述基板的一个主平面上，并反射存取控制激光束; 布置在所述反射层上的选择性反射层，传送所述存取控制激光束并反射记录激光束; 记录层，布置在所述选择反射层上，用于通过所述记录激光束在其上记录信息; 以及布置在记录层上的防反射层。 在基板上，在与一个主平面上的有效进入区域相邻的形成区域上形成具有与预制槽相同形状的虚拟槽。

公开(公告)号：US20090135702A1

公开(公告)日：2009-05-28

申请号：US12158376

申请日：2006-12-20

申请人： Yoshihisa Usami ,  Masatoshi Yumoto ,  Naoto Yanagihara

发明人： Yoshihisa Usami ,  Masatoshi Yumoto ,  Naoto Yanagihara

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G03H1/0252 ,  G03H2001/2234 ,  G03H2250/34 ,  G11B7/00781 ,  G11B7/24038 ,  G11B7/24044 ,  G11B7/245 ,  G11B7/246 ,  G11B7/252 ,  G11B7/256

摘要： The present invention aims to provide an optical recording medium that is provided with a recording layer for recording information by holography, has an uncomplicated laminate structure, is capable of performing recording and reproducing control such as tracking control and is capable of high-density multiple recording, as well as an optical recording method, an optical recording apparatus and an optical reproducing method. To this end, the present invention provides an optical recording medium which is a transmission medium for recording information based on a holographic principle using an information beam and a reference beam and performing tracking control using a servo beam, the medium including at least a first substrate, a recording layer, a filter layer that selectively reflects the servo beam, and a second substrate being disposed in this order as viewed from the light irradiation side of the information beam and the reference beam.

摘要翻译： 本发明的目的是提供一种光记录介质，其具有用于通过全息记录信息的记录层，具有不复杂的层压结构，能够执行诸如跟踪控制的记录和再现控制，并且能够进行高密度多次记录 ，以及光记录方法，光记录装置和光再现方法。 为此，本发明提供了一种光记录介质，其是用于使用信息光束和参考光束基于全息原理记录信息的传输介质，并且使用伺服光束执行跟踪控制，所述介质至少包括第一基板 ，记录层，选择性地反映伺服光束的滤光层，以及从信息光束和参考光束的光照射侧观察的顺序设置的第二基板。

公开(公告)号：US20090073866A1

公开(公告)日：2009-03-19

申请号：US11665492

申请日：2005-10-18

申请人： Takashi Imai ,  Yoshihisa Usami

发明人： Takashi Imai ,  Yoshihisa Usami

IPC分类号： G11B7/26 ,  B32B37/02

CPC分类号： G11B7/00736 ,  G11B7/268

摘要： The present invention provides an optical information recording medium having a substrate, a recording layer, and a reflective layer, and including a region corresponding to a burst cutting area: wherein the region has a plurality of bar recorded portions and a plurality of non bar recorded portions; and the ratio (A/B) of transmittance (A) with which the bar recorded portions transmit laser light for use in information reproduction to transmittance (B) with which the non bar recorded portions transmit the laser light is 1.5 or greater.The present invention also provides a method of manufacturing the optical information recording medium, the method including: irradiating a region corresponding to a burst cutting area with laser light having a wavelength of 400 to 2000 nm and a recording power of 0.1 to 20 W at a linear velocity of 0.01 to 5 m/s to form a plurality of bar recorded portions in the region.

摘要翻译： 本发明提供一种具有基板，记录层和反射层的光学信息记录介质，并且包括对应于突发切割区域的区域：其中该区域具有多个条记录部分和多个非条记录 部分 条记录部分将用于信息再现的激光的透射率（A）与不带条记录部分透射激光的透射率（B）的比（A / B）为1.5以上。 本发明还提供了一种制造光学信息记录介质的方法，该方法包括以下步骤：在波长为400至2000nm的激光和0.1至20W的记录功率下，对与爆裂切割区域相对应的区域进行照射 线速度为0.01〜5m / s，在该区域形成多个条记录部。

公开(公告)号：US20090051988A1

公开(公告)日：2009-02-26

申请号：US12193486

申请日：2008-08-18

申请人： Toshio SASAKI ,  Satoru Yamada ,  Hiroyuki Suzuki ,  Yoshihisa Usami ,  Makoto Kamo

发明人： Toshio SASAKI ,  Satoru Yamada ,  Hiroyuki Suzuki ,  Yoshihisa Usami ,  Makoto Kamo

IPC分类号： G03H1/02

CPC分类号： G11B7/24044 ,  G03F7/001 ,  G03H1/02 ,  G03H2001/0264 ,  G03H2001/186 ,  G03H2240/54 ,  G03H2260/12 ,  G11B7/245 ,  G11B7/246

摘要： A holographic recording medium includes at least two substrates, and a recording layer provided between the substrates. The recording layer has a property such that an average refractive index lowers as irradiation with a beam proceeds. In the recording layer, an optical compensation rate C that is defined by C=(1−(n2/n1))/α satisfies 0.8≦C≦1.0, where α is a rate of thickness change of the recording layer before and after recording, n1 is an average refractive index before recording, and n2 is an average refractive index after recording.

摘要翻译： 全息记录介质包括至少两个基板和设置在基板之间的记录层。 记录层具有这样的性质，使得当光束的照射进行时平均折射率降低。 在记录层中，由C =（1-（n2 / n1））/α定义的光学补偿率C满足0.8 <= C <1.0，其中α是之前记录层的厚度变化率 在记录之后，n1是记录前的平均折射率，n2是记录后的平均折射率。

公开(公告)号：US20070190283A1

公开(公告)日：2007-08-16

申请号：US11659630

申请日：2005-10-18

申请人： Takashi Imai ,  Yoshihisa Usami ,  Kazutoshi Katayama

发明人： Takashi Imai ,  Yoshihisa Usami ,  Kazutoshi Katayama

IPC分类号： B32B3/02

CPC分类号： G11B7/26 ,  G11B7/24038 ,  G11B7/24079

摘要： To provide an optical information recording medium capable of attaining high density recording and reducing the leakage of signals to adjacent tracks (cross-talk). The optical information recording medium includes: a first substrate having a pre-groove; an undercoating layer, a dye recording layer, and a reflective layer provided in this order on the first substrate; and a second substrate bonded to the reflective layer via an adhesive layer or a sticky layer, in which the pre-groove has a track pitch of 0.1 to 0.6 μm and a groove depth of 20 to 200 nm.

摘要翻译： 提供能够实现高密度记录并减少信号到相邻轨道的泄漏（串扰）的光学信息记录介质。 光信息记录介质包括：具有预凹槽的第一基板; 底涂层，染料记录层和反射层依次设置在第一基板上; 以及经由粘合剂层或粘性层粘合到反射层的第二基板，其中预凹槽的轨道间距为0.1至0.6μm，凹槽深度为20至200nm。

公开(公告)号：US20070067785A1

公开(公告)日：2007-03-22

申请号：US11522393

申请日：2006-09-18

申请人： Katsuyoshi Asakura ,  Tomoyuki Takahashi ,  Yoshihisa Usami

发明人： Katsuyoshi Asakura ,  Tomoyuki Takahashi ,  Yoshihisa Usami

IPC分类号： G11B17/04 ,  G11B23/03

CPC分类号： G11B23/0308 ,  G11B17/0405 ,  G11B17/0436

摘要： A recording and reproducing apparatus for a photosensitive recording medium, the apparatus comprising: a case as defined herein; an loading slot shutter as defined herein; an unlocking mechanism as defined herein; and a shutter opening mechanism as defined herein, wherein the unlocking mechanism starts the unlocking of the second locking member immediately after a leading end of the photosensitive recording medium cartridge is inserted into the loading slot and starts the unlocking of the first locking member immediately after the second locking member is unlocked, and the shutter opening mechanism opens the shutter of the photosensitive recording medium cartridge when the photosensitive recording medium cartridge reaches a predetermined position.

摘要翻译： 一种用于感光记录介质的记录和再现装置，该装置包括：如本文所定义的壳体; 如本文所定义的装载狭槽挡板; 如本文所定义的解锁机制; 以及如本文所定义的快门打开机构，其中，在光敏记录介质卡盘的前端插入装载槽中之后，解锁机构立即开始解锁第二锁定构件，并且在第一锁定构件的紧固后立即开始解锁 第二锁定构件被解锁，并且当感光记录介质卡盘到达预定位置时，挡板打开机构打开感光记录介质卡盘的挡板。

公开(公告)号：US20070064578A1

公开(公告)日：2007-03-22

申请号：US11525043

申请日：2006-09-22

申请人： Yoshihisa Usami ,  Nobuyuki Tada

发明人： Yoshihisa Usami ,  Nobuyuki Tada

IPC分类号： G11B3/70

CPC分类号： G11B23/0035 ,  G11B7/24044

摘要： A photosensitive recording medium comprising a substrate in a shape of disc having a center hole in a center part, and a holographic recording layer made from a photosensitive material, said photosensitive recording medium including a clamp area provided near an edge of said center hole and extending over 360 degree so as to surround said center hole, and a recording area provided at a distance from said clamp area and extending over 360 degree so as to surround said clamp area, wherein an RFID is embedded in a region between said clamp area and said recording area, or an RFID is embedded in an unrecordable region between said recording area and an outer circumferential edge of said recording medium.

摘要翻译： 一种光敏记录介质，包括具有中心部分中心孔的盘状基板和由感光材料制成的全息记录层的光敏记录介质，所述感光记录介质包括设置在所述中心孔的边缘附近并延伸的夹持区域 360度以围绕所述中心孔，以及设置在距所述夹持区域一定距离并延伸超过360度以便围绕所述夹持区域的记录区域，其中RFID嵌入在所述夹持区域和所述第二区域之间的区域中 记录区域或RFID被嵌入在所述记录区域和所述记录介质的外周边缘之间的不可记录区域中。

公开(公告)号：US07190659B2

公开(公告)日：2007-03-13

申请号：US10434280

申请日：2003-05-09

申请人： Yoshihisa Usami

发明人： Yoshihisa Usami

IPC分类号： G11B7/00 ,  G11B5/09

CPC分类号： G11B7/00456 ,  G11B7/0062

摘要： An optical information recording method of recording information on an optical information recording medium by irradiation of laser beam, the method comprises the steps of: forming a recording waveform which forms a first pit having a shortest pit length, by using a top pulse having a width narrower than a width of a channel clock cycle; forming a recording waveform which forms a second pit that is second shortest following the first pit, by using the top pulse and a terminal pulse having a width narrower than the width of the channel clock cycle; and forming a recording waveform which forms a pit that is longer than the second pit, by using the top pulse, the terminal pulse, and at least one multipulse formed between the top pulse and the terminal pulse. According to the method described above, pits having stable shape can be formed and thus jitter of reproduced signals can be reduced in an optical information recording medium having a narrow track pitch and high recording density.

摘要翻译： 一种光信息记录方法，通过照射激光束在光信息记录介质上记录信息，该方法包括以下步骤：通过使用具有宽度的顶部脉冲形成具有最短凹坑长度的第一凹坑的记录波形 窄于通道时钟周期的宽度; 通过使用顶部脉冲和宽度窄于通道时钟周期的宽度的端子脉冲形成形成第二凹坑之后第二最短的第二凹坑的记录波形; 以及通过使用顶部脉冲，端子脉冲和形成在顶部脉冲和终端脉冲之间的至少一个脉冲，形成形成比第二凹坑更长的凹坑的记录波形。 根据上述方法，可以形成具有稳定形状的凹坑，从而可以在具有窄轨道间距和高记录密度的光学信息记录介质中减少再现信号的抖动。