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1. 发明授权

US06388954B1 Magneto-optical recording medium having clock-marks on recording layer and apparatus for recording and reproducing same 失效
标题翻译：在记录层上具有时钟标记的磁光记录介质以及用于记录和再现记录层的装置
公开(公告)号：US06388954B1
公开(公告)日：2002-05-14
申请号：US09280811
申请日：1999-03-30
申请人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa , Manabu Tani , Masafumi Yoshihiro , Masaki Sekine
发明人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa , Manabu Tani , Masafumi Yoshihiro , Masaki Sekine
IPC分类号： G11B1100
CPC分类号： G11B7/1275 , G11B11/10515 , G11B11/10543
摘要： The magneto-optical recording medium has a magnetic domain magnification reproducing layer and an information recording layer. Clock marks are formed on the information recording layer, making it possible to generate a reproducing clock on the basis of these. The clock marks are detected either by irradiating directly with light of wavelength &lgr;2(&lgr;1≠&lgr;2), being different from the light of wavelength &lgr;1 which is used for reproducing the recording marks, or by applying a direct-current magnetic field, transferring and enlarging the clock marks on to the magnetic domain magnification reproducing layer, and detecting the reproduction signals from this magnetic domain magnification reproducing layer. Since the reproducing clock is in exact synchronisation with the recording marks, it is eminently suitable as a clock for pulse-modulated reproducing light and reproducing magnetic fields used when reproducing the reproducing layer.
摘要翻译：磁光记录介质具有磁畴倍率再现层和信息记录层。在信息记录层上形成时钟标记，从而可以基于这些生成再现时钟。通过直接照射波长为lambd2（lambd1> lambd2）的光，不同于用于再现记录标记的波长lambd1的光，或通过施加直流磁场，转印和将时钟标记放大到磁畴倍率再现层，并检测来自该磁畴倍率再现层的再现信号。由于再现时钟与记录标记完全同步，所以它非常适合用作脉冲调制再现光的时钟并且再现再生层时使用的再现磁场。

2. 发明授权

US06904002B2 Magneto-optical reproducing method using a plurality of different reproducing beams 失效
标题翻译：使用多个不同再现光束的磁光再现方法
公开(公告)号：US06904002B2
公开(公告)日：2005-06-07
申请号：US10452043
申请日：2003-06-03
申请人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa
发明人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa
IPC分类号： G11B11/105 , G11B11/00 , G11B11/10
CPC分类号： G11B11/10515 , G11B11/10528 , G11B11/10584 , G11B11/10586 , G11B11/10595
摘要： A magneto-optical recording medium has magneto-optical recording layers (11, 12, 13) and reproducing layers (21, 22, 23). The information recorded in the reproducing layers are reproduced by means of reproducing light beams (31, 32, 33) of different wavelengths, respectively. In reproduction, magnetic domains (4) recorded in the recording layers are transferred in the reproducing layers formed on the respective recording layers, the transferred magnetic domains (5) are enlarged with an external magnetic field, and the information is reproduced. Since information is recorded and reproduced for each recording layer, the recording density is improved. Further since the reproduction signals are amplified by the magnetic domain enlargement, the C/N is improved.
摘要翻译：磁光记录介质具有磁光记录层（11,12,13）和再现层（21,22,23）。记录在再现层中的信息分别通过再现不同波长的光束（31,32,33）来再现。在再现中，记录在记录层中的磁畴（4）被传送到形成在各个记录层上的再现层中，所传送的磁畴（5）被外部磁场扩大，并且再现信息。由于为每个记录层记录和再现信息，因此提高了记录密度。此外，由于通过磁畴放大来放大再现信号，所以提高了C / N。

3. 发明授权

US06633514B1 Magneto-optical reproducing method using a plural of different reproducing beams 失效
标题翻译：使用多个不同再现光束的磁光再现方法
公开(公告)号：US06633514B1
公开(公告)日：2003-10-14
申请号：US09601196
申请日：2000-08-16
申请人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa
发明人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa
IPC分类号： G11B1100
CPC分类号： G11B11/10515 , G11B11/10528 , G11B11/10584 , G11B11/10586 , G11B11/10595
摘要： A magneto-optical recording medium has magneto-optical recording layers (11, 12, 13) and reproducing layers (21, 22, 23). The information recorded in the reproducing layers are reproduced by means of reproducing light beams (31, 32, 33) of different wavelengths, respectively. In reproduction, magnetic domains (4) recorded in the recording layers are transferred in the reproducing layers formed on the respective recording layers, the transferred magnetic domains (5) are enlarged with an external magnetic field, and the information is reproduced. Since information is recorded and reproduced for each recording layer, the recording density is improved. Further since the reproduction signals are amplified by the magnetic domain enlargement, the C/N is improved.
摘要翻译：磁光记录介质具有磁光记录层（ 11,12,13，）和再现层（ 21,22,23 ）。记录在再现层中的信息分别通过再现不同波长的光束（ 31,32,33 ）来再现。在再现中，记录在记录层中的磁畴（ 4 PDAT>）被传送到形成在各个记录层上的再现层中，转移的磁畴（ 5 ）用外部磁场放大，信息被再现。由于为每个记录层记录和再现信息，因此提高了记录密度。此外，由于再现信号被磁畴放大放大，因此C / N得到改善

4. 发明授权

US07113453B1 Method for recording and reproduction on a magneto-optical recording medium 失效
标题翻译：在磁光记录介质上进行记录和再现的方法
公开(公告)号：US07113453B1
公开(公告)日：2006-09-26
申请号：US09321795
申请日：1999-05-28
申请人： Katsusuke Shimazaki , Norio Ohta , Akiyoshi Ito , Katsuji Nakagawa , Kazuko Inoue
发明人： Katsusuke Shimazaki , Norio Ohta , Akiyoshi Ito , Katsuji Nakagawa , Kazuko Inoue
IPC分类号： G11B11/00 , G11B7/24
CPC分类号： G11B11/10508 , G11B11/10515 , G11B11/10586
摘要： A magneto-optical recording medium and a method for recording and reproduction thereon are provided in order to reproduce information recorded by multi-valued recording at a high S/N ratio. Disclosed is a magneto-optical recording medium including two magnetic layers capable of four-valued recording based on four combined magnetization states. Magnitudes of reproduction signals concerning the four magnetization states, obtained upon reproduction at a wavelength λ1, are different from those obtained upon reproduction at a wavelength λ2. The two magnetic layers, on which a signal (a) is recorded, are irradiated with light beams having the wavelengths λ1 and λ2 respectively. Signals (d), (e) reproduced from respective reflected light beams are sliced by using at least one slice level to obtain two-valued or higher multi-valued reproduction signals respectively. The two-valued or higher multi-valued reproduction signals (f), (g) from the respective wavelengths are mutually subjected to logical operation to reproduce recorded information (i).
摘要翻译：提供磁光记录介质及其上的记录和再现方法，以便以高S / N比再现通过多值记录记录的信息。公开了一种包括基于四个组合磁化状态能够进行四值记录的两个磁性层的磁光记录介质。在波长λ1 1再现时获得的关于四个磁化状态的再现信号的幅度与在波长λ2 2再现时获得的重现信号的大小不同。在其上记录有信号（a）的两个磁性层分别用波长λ1和λ2的光束照射。通过使用至少一个限幅电平对从各反射光束再现的信号（d），（e）进行分片，以分别获得二值或更高的多值再现信号。来自各个波长的两值或更高的多值再生信号（f），（g））相互进行逻辑运算以再现记录信息（i）。

5. 发明授权

US5923625A Magneto-optical recording medium and method for recording and reproduction thereon 失效
标题翻译：磁光记录介质及其上的记录和再现方法
公开(公告)号：US5923625A
公开(公告)日：1999-07-13
申请号：US981308
申请日：1997-12-16
申请人： Katsusuke Shimazaki , Norio Ohta , Akiyoshi Ito , Katsuji Nakagawa , Kazuko Inoue
发明人： Katsusuke Shimazaki , Norio Ohta , Akiyoshi Ito , Katsuji Nakagawa , Kazuko Inoue
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10508 , G11B11/10515 , G11B11/10586
摘要： A magneto-optical recording medium and a method for recording and reproduction thereon are provided in order to reproduce information recorded by multi-valued recording at a high S/N ratio. Disclosed is a magneto-optical recording medium including two magnetic layers capable of four-valued recording based on four combined magnetization states. Magnitudes of reproduction signals concerning the four magnetization states, obtained upon reproduction at a wavelength .lambda..sub.1, are different from those obtained upon reproduction at a wavelength .lambda..sub.2. The two magnetic layers, on which a signal (a) is recorded, are irradiated with light beams having the wavelengths .lambda..sub.1 and .lambda..sub.2 respectively. Signals (d), (e) reproduced from respective reflected light beams are sliced by using at least one slice level to obtain two-valued or higher multi-valued reproduction signals respectively. The two-valued or higher multi-valued reproduction signals (f), (g) from the respective wavelengths are mutually subjected to logical operation to reproduce recorded information (i).
摘要翻译： PCT No.PCT / JP96 / 01938 Sec。 371日期：1997年12月16日 102（e）日期1997年12月16日PCT提交1996年7月12日PCT公布。公开号WO97 / 03439 日期1997年1月30日提供磁光记录介质及其上的记录和再现方法，以便以高S / N比再现由多值记录记录的信息。公开了一种包括基于四个组合磁化状态能够进行四值记录的两个磁性层的磁光记录介质。关于在波长λ1再现时获得的四种磁化状态的再现信号的幅度与在波长λ2再现时获得的不同。将记录有信号（a）的两个磁性层照射分别具有波长λ1和λ2的光束。通过使用至少一个限幅电平对从各反射光束再现的信号（d），（e）进行分片，以分别获得二值或更高的多值再现信号。来自各个波长的两值或更高的多值再生信号（f），（g））相互进行逻辑运算以再现记录信息（i）。

6. 发明授权

US06337478B1 Electrostatic force detector with cantilever and shield for an electrostatic force microscope 有权
标题翻译：带静电力显微镜的悬臂和屏蔽静电力检测器
公开(公告)号：US06337478B1
公开(公告)日：2002-01-08
申请号：US09434668
申请日：1999-11-05
申请人： Toshio Uehara , Akiyoshi Itoh , Katsuji Nakagawa , Manabu Tani , Bruce T. Williams
发明人： Toshio Uehara , Akiyoshi Itoh , Katsuji Nakagawa , Manabu Tani , Bruce T. Williams
IPC分类号： G01R2912
CPC分类号： G01Q60/30 , Y10S977/852 , Y10S977/864
摘要： An electrostatic force microscope for measuring electrostatic force of a sample under test including a detector comprising a cantilever arm having a tip formation at one end and located so that electrostatic force is induced at the tip due to electrostatic charge on the sample under test, an optical system for transforming bending of the cantilever arm due to electrostatic force induced at the tip into an electrical signal containing a frequency component of the electrostatic force induced at the detector tip, a source for applying bias voltage to the detector, a detector for detecting the frequency component of the electrostatic force induced at the detector tip so that a measurement of electrostatic force on the sample under test can be obtained, and an electrostatic shield operatively associated with the cantilever arm. The shield is located between the cantilever arm and the sample under test, in particular in close spaced relation to the arm. The cantilever arm and the shield are maintained at the same electrical potential so that lines of electrostatic force are terminated at the shield.
摘要翻译：一种用于测量被测样品的静电力的静电力显微镜，包括检测器，该检测器包括悬臂，所述悬臂臂在一端具有尖端形成，并且定位成使得由于被测试样品上的静电荷引起的尖端处的静电力，光学用于将由尖端引起的静电力引起的悬臂的弯曲变形为包含在检测器尖端感应的静电力的频率分量的电信号的系统，用于向检测器施加偏置电压的源，用于检测频率的检测器在检测器尖端处感应的静电力的分量，使得可以获得在被测试样品上的静电力的测量，以及与悬臂相配合的静电屏蔽。屏蔽位于悬臂与试验样品之间，特别是与臂紧密隔开。悬臂和屏蔽件保持相同的电位，使得静电力线在屏蔽处终止。

7. 发明授权

US06507197B1 Electrostatic force detector with cantilever for an electrostatic force microscope 有权
标题翻译：静电力显微镜用悬臂静电力检测器
公开(公告)号：US06507197B1
公开(公告)日：2003-01-14
申请号：US09183082
申请日：1998-10-30
申请人： Akiyoshi Itoh , Katsuji Nakagawa , Manabu Tani , Toshio Uehara , Bruce T. Williams
发明人： Akiyoshi Itoh , Katsuji Nakagawa , Manabu Tani , Toshio Uehara , Bruce T. Williams
IPC分类号： G01N2760
CPC分类号： G01Q40/00 , G01Q60/30 , G01Q60/40 , Y10S977/852 , Y10S977/864
摘要： An electrostatic force microscope wherein electrostatic force applied to the detector is determined through obtaining the field distribution on several different shaped detectors with the calculation of the voltage distribution near the detector with the Finite Element Method to direct the measurement of the absolute charge amount on surface under test so that one can define the differences between the analysis and the results from the parallel plate model. Of interest is how large the error in the charge detection occurs in conjunction with thickness change of dielectric materials to be tested. There is provided a detector with cantilever which has proper shape for the spatial resolution of 10&mgr; made out of nickel foil for an electrostatic force microscope and the electrostatic force which appeared on it has been calculated.
摘要翻译：静电力显微镜，其中施加到检测器的静电力是通过在几个不同形状的检测器上获得场分布来确定的，其中利用有限元法计算检测器附近的电压分布，以指示在绝对电荷量的测量下测试，以便可以定义分析和平行板模型的结果之间的差异。感兴趣的是电荷检测中的误差与要测试的介电材料的厚度变化一起发生多大。提供了具有悬臂的检测器，其具有用于静电力显微镜的由镍箔制成的10mu的空间分辨率的适当形状，并且已经计算了出现在其上的静电力。

8. 发明申请

US20100209738A1 THIN FILM MATERIAL AND RECORDING MEDIUM 审中-公开
标题翻译：薄膜材料和记录介质
公开(公告)号：US20100209738A1
公开(公告)日：2010-08-19
申请号：US12708139
申请日：2010-02-18
申请人： Akiyoshi Itoh , Katsuji Nakagawa , Arata Tsukamoto
发明人： Akiyoshi Itoh , Katsuji Nakagawa , Arata Tsukamoto
IPC分类号： G11B5/66 , G11B5/73 , B32B3/00
CPC分类号： G11B5/66 , G11B5/7325 , Y10T428/249975
摘要： Disclosed is a thin film material including a substrate and an underlying layer formed on the substrate. A large number of recesses of an extremely small size are demonstrated in a surface of the underlying layer. On this surface of the underlying layer is formed a magnetic film or a non-magnetic film.
摘要翻译：公开了一种薄膜材料，其包括在基板上形成的基板和下层。在下层的表面中示出了大量的极小尺寸的凹部。在该底层的该表面上形成磁性膜或非磁性膜。

9. 发明申请

US20090117410A1 Thin Film Material and Recording Medium 审中-公开
标题翻译：薄膜材料和记录介质
公开(公告)号：US20090117410A1
公开(公告)日：2009-05-07
申请号：US10599665
申请日：2005-02-25
申请人： Akiyoshi Itoh , Katsuji Nakagawa , Arata Tsukamoto
发明人： Akiyoshi Itoh , Katsuji Nakagawa , Arata Tsukamoto
IPC分类号： G11B5/74 , B32B9/04 , B32B3/26
CPC分类号： G11B5/66 , G11B5/7325 , Y10T428/249975
摘要： Disclosed is a thin film material including a substrate (10) and an underlying layer (11) formed on the substrate. A large number of recesses of an extremely small size are demonstrated in a surface of the underlying layer (11). On this surface of the underlying layer is formed a magnetic film (12) or a non-magnetic film (12).
摘要翻译：公开了一种薄膜材料，其包括在基板上形成的基板（10）和下层（11）。在下层（11）的表面中示出了大量非常小尺寸的凹部。在该底层的该表面上形成有磁性膜（12）或非磁性膜（12）。

10. 发明授权

US4839208A Optical information recording medium 失效
标题翻译：光信息记录介质
公开(公告)号：US4839208A
公开(公告)日：1989-06-13
申请号：US43626
申请日：1987-04-28
申请人： Katsuji Nakagawa , Masaki Itoh , Akio Morimoto , Mitsuru Sakai
发明人： Katsuji Nakagawa , Masaki Itoh , Akio Morimoto , Mitsuru Sakai
IPC分类号： G11B7/24 , G11B7/243 , G11B7/253 , G11B7/2531 , G11B7/2533 , G11B7/257
CPC分类号： G11B7/243 , G11B7/257 , G11B2007/24312 , G11B2007/24316 , G11B2007/24322 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25711 , G11B2007/25713 , G11B2007/25715 , G11B2007/25716 , G11B2007/25718 , G11B7/00453 , G11B7/2531 , G11B7/2533 , Y10S428/913 , Y10T428/24355 , Y10T428/261
摘要： An optical information recording medium according to the present invention is featured by its recording layer which contains a compound of tellurium (Te), selenium (Se) and nitrogen (N). The thickness of the recording layer 2 favorably ranges from about 100 angstroms (.ANG.) to about 1000 .ANG. and more favorably from 180 .ANG. to 400 .ANG.. The content of Se in the recording layer 2 favorably lies within a range from 2 to 40 atomic percent, more favorably from 10 to 30 atomic percent. The content of N is favorably to be from 2 to 20 atomic percent, and more favorably from 2 to 10 atomic percent.
摘要翻译：根据本发明的光学信息记录介质的特征在于包含碲（Te），硒（Se）和氮（N）的化合物的记录层。记录层2的厚度有利地在约100埃（ANGSTROM）至约1000安士之间，更优选地从180安培到400安培。记录层2中的Se的含量优选在2〜40原子％的范围内，更优选为10〜30原子％。 N的含量优选为2〜20原子％，更优选为2〜10原子％。

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