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公开(公告)号：US06848115B2
公开(公告)日：2005-01-25
申请号：US09969590
申请日：2001-10-04
Applicant: Satoshi Sugiura , Akihiro Tachibana , Yuzo Yamakawa
Inventor： Satoshi Sugiura , Akihiro Tachibana , Yuzo Yamakawa
CPC classification number: B82Y10/00 , G11B7/0052 , G11B7/24 , G11B7/243 , G11B7/257 , G11B2007/24308
Abstract: In an optical recording medium having a super-resolution layer structure using near-field light, comprising a readout layer 3 for forming a light scattering region 9 in the center portion of a laser spot, and a recording layer 5 for receiving near-field light 10 generated from the light scattering region 9 of the readout layer 3, scattering bodies 61 for increasing the generated near-field light are provided while enhancing a scattering effect of the near-field light 10 applied to a mark 51 of the recording layer 5.
Abstract translation: 在具有使用近场光的超分辨率层结构的光记录介质中，包括用于在激光光斑的中心部分形成光散射区域9的读出层3和用于接收近场光的记录层5 在从读出层3的光散射区域9产生的散射体61中，提供用于增加产生的近场光的散射体61，同时增强施加到记录层5的标记51的近场光10的散射效果。
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公开(公告)号：US06970307B2
公开(公告)日：2005-11-29
申请号：US10917366
申请日：2004-08-13
Applicant: Satoshi Sugiura , Yuzo Yamakawa
Inventor： Satoshi Sugiura , Yuzo Yamakawa
CPC classification number: G01Q60/22 , G11B7/1381 , G11B7/1384 , G11B7/1387 , G11B7/1398
Abstract: An optical near-field generating element is provided with: a light shielding member, which is placed on an optical path of light emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light; and a dielectric film placed in close contact with the micro opening. Alternatively, an optical near-field generating element is provided with a light shielding member, which is placed on an optical path of lights emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light, the shielding member equipped with: a main portion for defining a basic shape of the micro opening; and a protrusion portion protruding from the main portion toward the center of the micro opening.
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公开(公告)号：US20050008296A1
公开(公告)日：2005-01-13
申请号：US10917366
申请日：2004-08-13
Applicant: Satoshi Sugiura , Yuzo Yamakawa
Inventor： Satoshi Sugiura , Yuzo Yamakawa
CPC classification number: G01Q60/22 , G11B7/1381 , G11B7/1384 , G11B7/1387 , G11B7/1398
Abstract: An optical near-field generating element is provided with: a light shielding member, which is placed on an optical path of light emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light; and a dielectric film placed in close contact with the micro opening. Alternatively, an optical near-field generating element is provided with a light shielding member, which is placed on an optical path of lights emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light, the shielding member equipped with: a main portion for defining a basic shape of the micro opening; and a protrusion portion protruding from the main portion toward the center of the micro opening.
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Patent Agency Ranking
4.发明授权Optical near-field generating element and optical apparatus including the same 失效光学近场产生元件和包括该光学近场产生元件的光学装置公开(公告)号：US06839191B2
公开(公告)日：2005-01-04
申请号：US10209975
申请日：2002-08-02
Applicant: Satoshi Sugiura , Yuzo Yamakawa
Inventor： Satoshi Sugiura , Yuzo Yamakawa
CPC classification number: G01Q60/22 , G11B7/1381 , G11B7/1384 , G11B7/1387 , G11B7/1398
Abstract: An optical near-field generating element is provided with: a light shielding member, which is placed on an optical path of light emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light; and a dielectric film placed in close contact with the micro opening. Alternatively, an optical near-field generating element is provided with a light shielding member, which is placed on an optical path of lights emitted from a light source, for defining a micro opening having a diameter equal to or shorter than a wavelength of the light, the shielding member equipped with: a main portion for defining a basic shape of the micro opening; and a protrusion portion protruding from the main portion toward the center of the micro opening.
Abstract translation: 光学近场产生元件设置有：遮光构件，其被放置在从光源发射的光的光路上，用于限定直径等于或小于光的波长的微孔; 以及与微孔紧密接触的介电膜。 或者，光学近场产生元件设置有遮光构件，其被放置在从光源发射的光的光路上，用于限定直径等于或小于光的波长的微孔 所述屏蔽构件配备有：用于限定所述微孔的基本形状的主要部分; 以及从主体向微孔的中心突出的突出部。
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5.发明授权
公开(公告)号：US5337301A
公开(公告)日：1994-08-09
申请号：US991748
申请日：1992-12-17
Applicant: Satoshi Sugiura , Yuzo Yamakawa
Inventor： Satoshi Sugiura , Yuzo Yamakawa
CPC classification number: G11B7/24088 , G11B7/005 , G11B7/24085
Abstract: The optical recording medium includes: an information recording substrate; and pits formed on the information recording substrate, each of the pits corresponding to a recording information unit comprising a plurality of bits, and having one of predetermined patterns for respectively generating different optical characteristics by projecting a light spot onto the pits.
Abstract translation: 光记录介质包括：信息记录基板; 和形成在信息记录基板上的凹坑，每个凹坑对应于包括多个位的记录信息单元，并且具有通过将光斑投影到凹坑上来分别产生不同光学特性的预定图案之一。
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公开(公告)号：US08097323B2
公开(公告)日：2012-01-17
申请号：US12441609
申请日：2007-08-17
Applicant: Takayuki Shima , Yuzo Yamakawa , James Paul Fons , Junji Tominaga
Inventor： Takayuki Shima , Yuzo Yamakawa , James Paul Fons , Junji Tominaga
IPC: B32B3/02
CPC classification number: G11B7/252 , G11B7/24 , G11B7/2534 , G11B7/259 , G11B2007/24306 , G11B2007/2432 , G11B2007/25706 , Y10T428/21
Abstract: An object of the invention is to write-once record and reproduce, or only reproduce, a mark smaller than the resolution limit; obtain a high level of reproduction performance (CNR and the like); and realize a high level of reproduction durability. In the invention, between a signal reproducing functional layer composed of Sb or Te and a protecting layer there is introduced a thermally stable diffusion preventing layer, and thereby reactions between the signal reproducing functional layer and the protecting layer due to increased temperature can be prevented or suppressed while increasing reproduction durability.
Abstract translation: 本发明的目的是一次记录和再现或仅复制小于分辨率限制的标记; 获得高水平的再现性能（CNR等）; 并实现高水平的再现耐久性。 在本发明中，在由Sb或Te组成的信号再现功能层与保护层之间引入热稳定的扩散防止层，从而可以防止信号再现功能层与保护层因温度升高而发生反应， 抑制同时增加再现耐久性。
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公开(公告)号：US20100142362A1
公开(公告)日：2010-06-10
申请号：US12088216
申请日：2006-09-25
Applicant: Kazuma Kurihara , Yuzo Yamakawa , Takashi Nakano , Junji Tominaga
Inventor： Kazuma Kurihara , Yuzo Yamakawa , Takashi Nakano , Junji Tominaga
CPC classification number: G11B7/24079 , G11B7/0901 , G11B7/24085
Abstract: When a method for increasing density by providing a tracking guide such as a land/groove and introducing a plurality of strings of super-resolution pits into one track thereof is applied to a reproduction-dedicated optical disk, there are problems in that the production cost is increased, the structure is complicated, and the space which can be used for a recording pits is narrowed because of the land/groove structure.In the invention, a concept of group tracking is applied. One track is formed by a plurality of pit strings having a size not greater than the optical resolution limit in the radial direction and a size not less than or not greater than the optical resolution limit or only not greater than the optical resolution limit in the tangential direction. Reproduction of the super-resolution pit itself is performed by using a non-linear phenomenon generated locally, but, in tracking, a plurality of strings of pits are considered to be one track, and detection of the movement of a laser light for read out is realized by the method used for an existing optical disk by using a reflected light or a transmitted light from the optical disk.
Abstract translation: 当通过提供诸如平台/凹槽的跟踪引导件和将多个超分辨率凹坑串引入其一个轨道中的密度增加的方法被应用于再现专用光盘时，存在生产成本 增加，结构复杂，可以用于记录坑的空间由于槽脊/槽结构而变窄。 在本发明中，应用了组跟踪的概念。 一个轨迹由具有不大于径向的光学分辨率极限的尺寸的多个凹坑串形成，并且尺寸不小于或不大于光学分辨率极限，或者不大于切向中的光学分辨率极限 方向。 通过使用局部产生的非线性现象来实现超分辨率凹坑本身的再现，但是在跟踪中，多个凹坑串被认为是一个轨道，并且检测用于读出的激光的移动 通过使用来自光盘的反射光或透射光通过用于现有光盘的方法来实现。
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公开(公告)号：US20090269542A1
公开(公告)日：2009-10-29
申请号：US12441609
申请日：2007-08-17
Applicant: Takayuki Shima , Yuzo Yamakawa , James Paul Fons , Junji Tominaga
Inventor： Takayuki Shima , Yuzo Yamakawa , James Paul Fons , Junji Tominaga
IPC: B32B3/02
CPC classification number: G11B7/252 , G11B7/24 , G11B7/2534 , G11B7/259 , G11B2007/24306 , G11B2007/2432 , G11B2007/25706 , Y10T428/21
Abstract: An object of the invention is to write-once record and reproduce, or only reproduce, a mark smaller than the resolution limit; obtain a high level of reproduction performance (CNR and the like); and realize a high level of reproduction durability. In the invention, between a signal reproducing functional layer composed of Sb or Te and a protecting layer there is introduced a thermally stable diffusion preventing layer, and thereby reactions between the signal reproducing functional layer and the protecting layer due to increased temperature can be prevented or suppressed while increasing reproduction durability.
Abstract translation: 本发明的目的是一次记录和再现或仅复制小于分辨率限制的标记; 获得高水平的再现性能（CNR等）; 并实现高水平的再现耐久性。 在本发明中，在由Sb或Te组成的信号再现功能层与保护层之间引入热稳定的扩散防止层，从而可以防止信号再现功能层与保护层因温度升高而发生反应， 抑制同时增加再现耐久性。
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