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61. 发明申请

US20070030776A1 Super-resolution information recording medium, recording/reproducing apparatus, and recording/reproducing method 审中-公开
标题翻译：超分辨率信息记录介质，记录/再现装置和记录/再现方法
公开(公告)号：US20070030776A1
公开(公告)日：2007-02-08
申请号：US11499712
申请日：2006-08-07
申请人： Joo-ho Kim , In-oh Hwang , Narutoshi Fukuzawa , Junji Tominaga , Takashi Kikukawa , Tatsuhiro Kobayashi , Takashi Nakano , Takayuki Shima
发明人： Joo-ho Kim , In-oh Hwang , Narutoshi Fukuzawa , Junji Tominaga , Takashi Kikukawa , Tatsuhiro Kobayashi , Takashi Nakano , Takayuki Shima
IPC分类号： G11B19/02 , G11B3/70
CPC分类号： G11B7/252 , G11B7/00452 , G11B7/0052 , G11B7/24 , G11B7/243 , G11B2007/24304 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316
摘要： A super-resolution information recording medium, a recording/reproducing apparatus, and a recording/reproducing method uses an information recording medium provides a super-resolution effect by fluid bubbles. The fluid bubbles are formed in at least a portion of the medium by a light beam radiated to reproduce a signal from the information recording medium. Accordingly, the super-resolution information recording medium has improved optical characteristics, so that better recording/reproduction is possible.
摘要翻译：超分辨率信息记录介质，记录/再现装置和记录/再现方法使用信息记录介质通过流体气泡提供超分辨率效果。通过辐射的光束在介质的至少一部分中形成流体气泡，以再现来自信息记录介质的信号。因此，超分辨率信息记录介质具有改善的光学特性，使得更好的记录/再现成为可能。

62. 发明申请

US20060165945A1 Optical recording medium 审中-公开
标题翻译：光记录介质
公开(公告)号：US20060165945A1
公开(公告)日：2006-07-27
申请号：US11337611
申请日：2006-01-24
申请人： Tatsuhiro Kobayashi , Takashi Kikukawa , Narutoshi Fukuzawa
发明人： Tatsuhiro Kobayashi , Takashi Kikukawa , Narutoshi Fukuzawa
IPC分类号： B32B3/02
CPC分类号： G11B7/00452 , G11B7/243 , G11B2007/2432
摘要： An optical recording medium includes a laminated body in which at least a dielectric layer 6 is interposed between a recording layer 7 and a light absorbing layer 5, the optical recording medium being constructed so that data recorded by a recording mark train including recording marks whose lengths are less than the resolution limit are reproduced. The optical recording medium has reflectance of 20 to 80% and a laser beam is irradiated at a power density of 5.6×108 to 1.2×1010 W/m2 to reproduce the recorded data.
摘要翻译：光记录介质包括层压体，其中至少介电层6介于记录层7和光吸收层5之间，所述光记录介质被构造成使记录标记列记录的数据包括记录标记，其记录标记的长度小于分辨率限制。光记录媒体的反射率为20〜80％，激光束的功率密度为5.6×10 8〜1.2×10 10 W / m 2 以再现记录的数据。

63. 发明申请

US20060158983A1 Optical reproducing method and optical reproducing system 审中-公开
标题翻译：光学再现方法和光学再现系统
公开(公告)号：US20060158983A1
公开(公告)日：2006-07-20
申请号：US11330188
申请日：2006-01-12
申请人： Narutoshi Fukuzawa , Takashi Kikukawa , Tatsuhiro Kobayashi , Toshiki Aoi
发明人： Narutoshi Fukuzawa , Takashi Kikukawa , Tatsuhiro Kobayashi , Toshiki Aoi
IPC分类号： G11B5/09 , G11B7/12
CPC分类号： G11B7/1362 , G11B7/005 , G11B7/1263 , G11B7/127 , G11B7/1395
摘要： A super resolution optical reproducing system, which can recognize a recording mark less than a resolution limit, removes the effect of a high-frequency noise component of a high power signal obtained by irradiating a laser beam with high read power. The same recording region of an optical recording medium is irradiated according to an irradiation spot by a laser beam with an ordinary read power and an irradiation spot by a laser beam with high read power to obtain a ordinary power signal and a high power signal. The ordinary power signal and the high power signal are normalized to an average level by high pass filters and low pass filters of a high power signal processing circuit and a ordinary power signal processing circuit. Then, a subtracter subtracts the ordinary power signal from the high power signal to obtain a substrated signal. The differential signal and a ordinary reproduced signal that has passed through a parallel processing circuit are amplitude-modulated by a pre-equalizer and a parallel pre-equalizer and then added up by an adder to form a composite signal. The composite signal is output as a reproduced signal.
摘要翻译：可以识别小于分辨率极限的记录标记的超分辨率光学再现系统消除了通过以高读取功率照射激光而获得的高功率信号的高频噪声分量的影响。通过具有普通读取功率的激光束和具有高读取功率的激光束的照射点，根据照射点照射光学记录介质的相同记录区域，以获得普通电力信号和高功率信号。普通功率信号和高功率信号通过高功率信号处理电路和普通功率信号处理电路的高通滤波器和低通滤波器归一化为平均电平。然后，减法器从高功率信号中减去普通功率信号，以获得一个子信号。已经通过并行处理电路的差分信号和普通的再现信号由预均衡器和并行预均衡器进行幅度调制，然后由加法器相加以形成复合信号。复合信号作为再现信号输出。

64. 发明申请

US20060153051A1 Optical recording medium, optical recording/reproducing apparatus, optical, recording apparatus and optical reproducing apparatus, data recording/reproducing method for optical recording medium, and data recording method and data reproducing method 审中-公开
标题翻译：光学记录介质，光学记录/再现装置，光学，记录装置和光学再现装置，用于光学记录介质的数据记录/再现方法，以及数据记录方法和数据再现方法
公开(公告)号：US20060153051A1
公开(公告)日：2006-07-13
申请号：US10562901
申请日：2004-06-29
申请人： Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi
发明人： Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi
IPC分类号： G11B7/24
CPC分类号： G11B7/00454 , G11B7/00452 , G11B7/24038 , G11B7/24065 , G11B7/243 , G11B2007/24304 , G11B2007/2432 , G11B2007/25706 , G11B2007/25715
摘要： An optical recording medium 10 having a substrate 11, an optically transparent layer 12, and a first dielectric layer 31, a noble metal oxide layer 23, a second dielectric layer 32, a light absorbing layer 22, a third dielectric layer 33 and a reflecting layer 21 which are disposed between the optically transparent layer 12 and the substrate 11, records and reproduces data into and from the optical recording medium 10 by irradiating the optical recording medium 10 with a laser beam 40 from the optically transparent layer 12 side. λ/NA is set to be not longer than 640 nm when λ designates a wavelength of the laser beam 40 and NA designates a numerical aperture of an objective lens, and setting is done as Pw×0.1≦Pr≦Pw×0.5 when Pw and Pr designate recording power and reproducing power of the laser beam 40 respectively, while a recording mark train including recording marks each having a length not larger than λ/4 NA is recorded and data are reproduced from the recording mark train.
摘要翻译：具有基板11，光学透明层12和第一介电层31，贵金属氧化物层23，第二电介质层32，光吸收层22，第三电介质层33和反射的光记录介质10 设置在光学透明层12和基板11之间的层21通过用光学透明层12侧的激光束40照射光学记录介质10来记录数据并从光学记录介质10再现数据。当λ表示激光束40的波长，NA表示物镜的数值孔径时，λ/ NA设定为不大于640nm，并且设定为Pwx0.1 <= Pr <= Pwx0.5，当 Pw和Pr分别指示激光束40的记录功率和再现功率，同时记录包括具有不大于λ/ 4NA的长度的记录标记的记录标记列，并且从记录标记列再现数据。

65. 发明申请

US20060126482A1 Optical recording disc 审中-公开
标题翻译：光记录盘
公开(公告)号：US20060126482A1
公开(公告)日：2006-06-15
申请号：US10561096
申请日：2004-06-30
申请人： Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi
发明人： Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi
IPC分类号： G11B7/24
CPC分类号： G11B7/00452 , G11B7/24 , G11B7/252 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316
摘要： It is an object of the present invention to provide an optical recording disc which can record data constituted by a recording mark train including recording marks and blank regions neighboring recording marks therein and reproduce the data therefrom even in the case where the lengths of a recording mark and a blank region between neighboring recording marks are shorter than the resolution limit, thereby markedly increasing the storage capacity thereof and can improve the C/N ratio of the reproduced signal. An optical recording disc includes a substrate 2, a third dielectric layer 3, a light absorption layer 4, a second dielectric layer 5, a decomposition reaction layer 6 containing platinum oxide as a primary component, a first dielectric layer 7 and a light transmission layer 8 and wherein the second dielectric layer has a thickness of 20 nm to 100 nm and the optical recoding disc is constituted so that when it is irradiated with a laser beam 20 from the side of the light transmission layer 8, the platinum oxide contained in the decomposition reaction layer 6 as a primary component is decomposed into platinum and oxygen so that a bubble pit is formed in the decomposition reaction layer 6 by thus generated oxygen gas and fine particles of the noble metal precipitate into the bubble pit, thereby forming a recording mark in the decomposition reaction layer 6.
摘要翻译：本发明的目的是提供一种光学记录盘，其可以记录由包括记录标记和包括记录标记在内的空白区域的记录标记列构成的数据，并且即使在记录标记的长度的情况下再现数据并且相邻记录标记之间的空白区域比分辨率极限短，从而显着增加其存储容量，并且可以提高再现信号的C / N比。光记录盘包括基板2，第三电介质层3，光吸收层4，第二电介质层5，含有氧化铂作为主要成分的分解反应层6，第一电介质层7和光透射层 8，其中所述第二电介质层的厚度为20nm至100nm，并且所述光学记录盘被构造成使得当从所述光透射层8的一侧照射激光束20时，作为主要成分的分解反应层6分解为铂和氧，从而通过这样产生的氧气在分解反应层6中形成气泡，并且贵金属的细颗粒沉淀到气泡坑中，从而形成记录标记在分解反应层6中。

66. 发明授权

US06901036B2 Method and apparatus for reproducing an optical signal 失效
标题翻译：用于再现光信号的方法和装置
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。

67. 发明申请

US20050105418A1 Method for determining a reproducing power of a laser beam and an apparatus for recording and reproducing data 有权
标题翻译：用于确定激光束的再现功率的方法和用于记录和再现数据的装置
公开(公告)号：US20050105418A1
公开(公告)日：2005-05-19
申请号：US10929894
申请日：2004-08-30
申请人： Masashi Kuwahara , Takayuki Shima , Junji Tominaga , Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi
发明人： Masashi Kuwahara , Takayuki Shima , Junji Tominaga , Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi
IPC分类号： G11B7/243 , G03G5/05 , G11B5/09 , G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/125 , G11B7/24
CPC分类号： G11B7/24 , G03G5/0564 , G11B7/00456 , G11B7/1267
摘要： A method for determining a read power of a laser beam according to the present invention includes a step of setting a power of a laser beam to a recommended recording power Pw′ and forming a recording mark train including at least one of a recording mark having a length shorter than a resolution limit and a blank region having a length shorter than the resolution limit in an optical recording disc, thereby recording test data therein, a step of setting the power of the laser beam to a recommended read power Pr′ and reproducing the test data recorded in the optical recording disc, a step of judging whether or not signal characteristics of a reproduced signal obtained by reproducing the test data satisfies reference conditions, and determining an optimum read power of the laser beam based on the result of the judgment. According to the thus constituted method for determining a read power of a laser beam, even in the case where the length of a recording mark or the length of a blank region between neighboring recording marks is shorter than the resolution limit, it is possible to record and reproduce a recording mark train including these recording marks and blank regions. Therefore, this method can be applied to an optical recording medium whose storage capacity is markedly increased.
摘要翻译：根据本发明的用于确定激光束的读取功率的方法包括将激光束的功率设置为推荐的记录功率Pw'并形成记录标记列的步骤，该记录标记列包括具有长度短于分辨率极限，并且具有长度短于光学记录盘中的分辨率极限的空白区域，从而在其中记录测试数据，将激光束的功率设置为推荐读取功率Pr'并再现记录在光学记录盘中的测试数据，判断通过再现测试数据获得的再现信号的信号特性是否满足参考条件，并且基于判断结果确定激光束的最佳读取功率的步骤。根据如此构成的确定激光束的读取功率的方法，即使在记录标记的长度或相邻记录标记之间的空白区域的长度短于分辨率限制的情况下，也可以记录并且再现包括这些记录标记和空白区域的记录标记列。因此，该方法可以应用于存储容量明显增加的光记录介质。

68. 发明授权

US06465070B2 Optical recording medium 失效
标题翻译：光记录介质
公开(公告)号：US06465070B2
公开(公告)日：2002-10-15
申请号：US09760847
申请日：2001-01-17
申请人： Takashi Kikukawa , Hajime Utsunomiya
发明人： Takashi Kikukawa , Hajime Utsunomiya
IPC分类号： B32B302
CPC分类号： G11B7/243 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , Y10T428/21
摘要： High temperature reliability, and in particular, the high temperature reliability after repeated overwriting operations is improved in an optical recording medium wherein a material of Ag—In—Sb—Te system is used for the recording layer. Provided is an optical recording medium having a recording layer of phase change type, wherein said recording layer contains Ag, In, Sb, and Te as its main components, and Ge as its sub-component such that, when molar ratio of the elements constituting the main and sub-components is represented by formula (I): (AgaInbSbcTed) (1-e/100)Gee, 2≦a≦20, 2≦b≦20, 35≦c≦80, 8≦d≦40, a+b+c+d=100, and 1≦e≦15.
摘要翻译：特别是在采用Ag-In-Sb-Te系统的材料用于记录层的光记录介质中，改进了重复重写操作后的高温可靠性。提供了具有相变型记录层的光记录介质，其中所述记录层包含Ag，In，Sb和Te作为其主要成分，Ge作为其子组分，使得当构成主分量和子成分由式（I）表示：（AgaInbSbcTed）（1-e / 100）Gee，2 <= a <= 20,2 <= b <= 20,35 <= c < 8 <= d <= 40，a + b + c + d = 100，1 <= e <= 15。

69. 发明授权

US06461710B1 Optical recording medium 失效
标题翻译：光记录介质
公开(公告)号：US06461710B1
公开(公告)日：2002-10-08
申请号：US09456404
申请日：1999-12-08
申请人： Takashi Kikukawa , Hajime Utsunomiya
发明人： Takashi Kikukawa , Hajime Utsunomiya
IPC分类号： B32B302
CPC分类号： B82Y10/00 , C23C14/0623 , G11B7/24 , G11B7/243 , G11B7/257 , Y10T428/21
摘要： In an optical recording medium wherein a layer of nonlinear optical material and a recording layer of phase change type are formed extreme close to each other to enable reading of small record marks beyond diffraction limit, a high C/N is realized and decrease of the C/N in the reading is also suppressed. More illustratively, the optical recording medium has a mask layer (nonlinear optical material layer) and a recording layer of phase change type formed to sandwich an intermediate dielectric layer such that an optical aperture can be formed in the mask layer by irradiation of reading light beam from the side of the mask layer. The intermediate dielectric layer has a thickness of 5 to 70 nm; or near field light generated near the optical aperture is used in the reading. The recording layer contains Ag, In, Sb and Te as its main components and Ge and/or N as its sub-component.
摘要翻译：在其中非线性光学材料层和相变型记录层形成为非常接近以使得能够读取超出衍射极限的小记录标记的光记录介质中，实现了高C / N，并降低了C / N在阅读中也被抑制。更具体地说，光学记录介质具有掩模层（非线性光学材料层）和相变型记录层，以形成夹层中间介质层，使得通过读取光束的照射可以在掩模层中形成光学孔从掩模层的一侧。中间介电层的厚度为5〜70nm; 或在光学孔径附近产生的近场光用于读取。记录层包含Ag，In，Sb和Te作为其主要组分，Ge和/或N作为其子组分。

70. 发明授权

US06406772B2 Optical recording medium and method for making 失效
标题翻译：光记录媒体及制作方法
公开(公告)号：US06406772B2
公开(公告)日：2002-06-18
申请号：US09737776
申请日：2000-12-18
申请人： Junji Tominaga , Isamu Kuribayashi , Makoto Takahashi , Takashi Kikukawa
发明人： Junji Tominaga , Isamu Kuribayashi , Makoto Takahashi , Takashi Kikukawa
IPC分类号： B32B302
CPC分类号： B60L11/1809 , B60L2210/20 , G11B7/243 , G11B7/257 , G11B7/2595 , G11B7/26 , G11B7/266 , G11B2007/24308 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , H02J7/0011 , H02J7/0063 , H02J7/14 , Y02T10/7005 , Y02T10/7072 , Y02T10/725 , Y02T90/127 , Y02T90/14 , Y10S430/146 , Y10T428/21
摘要： A phase change optical recording medium has on a substrate a recording layer consisting essentially of a Sb base thin film and a reactive thin film. The Sb base thin film is formed by depositing a Sb base material containing at least 95 at % of Sb to a thickness of 70-150 Å. The reactive thin film is formed of a material which forms a phase change recording material when mixed with Sb. The reactive thin film is typically formed of an In—Ag—Te or Ge—Te material. Stable write/read characteristics are accomplished at the first overwriting, initializing operation is eliminated, and rewriting is impossible at the same linear velocity as recording.
摘要翻译：相变光记录介质在基板上具有基本上由Sb基薄膜和反应性薄膜组成的记录层。 Sb基薄膜通过沉积含有至少95原子％的Sb的Sb基材料形成，厚度为70-150埃。反应性薄膜由与Sb混合时形成相变记录材料的材料形成。反应性薄膜通常由In-Ag-Te或Ge-Te材料形成。在第一次重写时可以实现稳定的写入/读取特性，消除了初始化操作，并且以与记录相同的线速度不可能进行重写。

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