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公开(公告)号：US06608518B2
公开(公告)日：2003-08-19
申请号：US10162577
申请日：2002-06-06
申请人： Futoshi Furuta , Kazuo Saitoh , Kazumasa Takagi
发明人： Futoshi Furuta , Kazuo Saitoh , Kazumasa Takagi
IPC分类号： H03K1792
CPC分类号： B82Y10/00 , G06N99/002 , H03K3/38 , H03K17/92
摘要： The problem of the disclosed technology is as follows. Although a single flux quantum circuit can fabricate a high-speed sequential circuit with ease, the initialization of the circuit is required for guaranteeing the normal operation of the circuit. However, a prior-art circuit has no initializing function, or requires the restructuring of another logic system. For solving the foregoing problem, one Josephson junction is inserted to a flux quantum storage inductor constituting the existing logic circuit, so that a pulse for performing the circuit initialization is injected to the connection point by means of a comparator.
摘要翻译： 所公开技术的问题如下。 尽管单通量量子电路可以容易地制造高速顺序电路，但是为了保证电路的正常工作，需要电路的初始化。 然而，现有技术的电路没有初始化功能，或者需要重构另一个逻辑系统。 为了解决上述问题，将一个约瑟夫逊结插入到构成现有逻辑电路的通量量子存储电感器中，使得用于执行电路初始化的脉冲通过比较器被注入连接点。
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公开(公告)号：US07501877B2
公开(公告)日：2009-03-10
申请号：US11808337
申请日：2007-06-08
申请人： Futoshi Furuta , Kazuo Saitoh
发明人： Futoshi Furuta , Kazuo Saitoh
IPC分类号： H03K17/92
摘要： Objects of the present invention are to provide an integration circuit which produces no integration leak so that the bit accuracy is improved in a sigma-delta modulation circuit or a delta modulator circuit, which is based on a single flux quantum circuit that uses a flux quantum as an information carrier, and to provide a method for reducing thermal noise and quantization noise. According to the present invention, an integration circuit is formed by Josephson junctions and an inductor to reduce the integration leak, and a plurality of modulator circuits are connected to one another so as to add up each output. As a result, it is possible to reduce the influence of thermal noise exerted upon the bit accuracy, the thermal noise having no correlativity to one another. Moreover, by changing the density or phase of a SFQ pulse to be supplied to the Josephson junctions of the integration circuit, the correlativity of quantization noise between the outputs of the modulator circuits is eliminated so that the bit accuracy is improved.
摘要翻译： 本发明的目的是提供一种不产生积分泄漏的积分电路，使得在Σ-Δ调制电路或增量调制器电路中提高比特精度，该Δ-Δ调制电路或增量调制器电路基于使用通量量子的单通量量子电路 作为信息载体，并且提供减少热噪声和量化噪声的方法。 根据本发明，由约瑟夫逊结和电感器形成积分电路以减少积分泄漏，并且多个调制器电路彼此连接，以便将每个输出相加。 结果，可以减少施加在比特精度上的热噪声的影响，热噪声彼此不相关。 此外，通过改变要提供给积分电路的约瑟夫逊结的SFQ脉冲的密度或相位，消除了调制器电路的输出之间的量化噪声的相关性，从而提高了位精度。
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公开(公告)号：US20080129368A1
公开(公告)日：2008-06-05
申请号：US11808337
申请日：2007-06-08
申请人： Futoshi Furuta , Kazuo Saitoh
发明人： Futoshi Furuta , Kazuo Saitoh
IPC分类号： H03K17/92
摘要： Objects of the present invention are to provide an integration circuit which produces no integration leak so that the bit accuracy is improved in a sigma-delta modulation circuit or a delta modulator circuit, which is based on a single flux quantum circuit that uses a flux quantum as an information carrier, and to provide a method for reducing thermal noise and quantization noise. According to the present invention, an integration circuit is formed by Josephson junctions and an inductor to reduce the integration leak, and a plurality of modulator circuits are connected to one another so as to add up each output. As a result, it is possible to reduce the influence of thermal noise exerted upon the bit accuracy, the thermal noise having no correlativity to one another. Moreover, by changing the density or phase of a SFQ pulse to be supplied to the Josephson junctions of the integration circuit, the correlativity of quantization noise between the outputs of the modulator circuits is eliminated so that the bit accuracy is improved.
摘要翻译： 本发明的目的是提供一种不产生积分泄漏的积分电路，使得在Σ-Δ调制电路或增量调制器电路中提高比特精度，该Δ-Δ调制电路或增量调制器电路基于使用通量量子的单通量量子电路 作为信息载体，并且提供减少热噪声和量化噪声的方法。 根据本发明，由约瑟夫逊结和电感器形成积分电路以减少积分泄漏，并且多个调制器电路彼此连接，以便将每个输出相加。 结果，可以减少施加在比特精度上的热噪声的影响，热噪声彼此不相关。 此外，通过改变要提供给积分电路的约瑟夫逊结的SFQ脉冲的密度或相位，消除了调制器电路的输出之间的量化噪声的相关性，从而提高了位精度。
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公开(公告)号：US20050047245A1
公开(公告)日：2005-03-03
申请号：US10862418
申请日：2004-06-08
申请人： Futoshi Furuta , Kazuo Saitoh
发明人： Futoshi Furuta , Kazuo Saitoh
CPC分类号： H03M1/0624 , G11C7/06 , H03M1/1215
摘要： In an A/D converter having a single flux quantum circuit having a flux quantum as an information carrier, a superconducting amplifier circuit driven by an AC current, and a semiconductor circuit, the operations of the circuits are synchronized with each other and a data signal from the single flux quantum circuit is transmitted to the semiconductor circuit. An AC current as the power source of a superconducting amplifier circuit is inputted as a master clock signal to the single flux quantum circuit and the semiconductor circuit to synchronize the operations of the circuits with the master clock signal. The single flux quantum circuit has a clock signal frequency multiplier circuit, a demultiplexing circuit and a memory circuit.
摘要翻译： 在具有作为信息载体的通量量子的单通量量子电路的A / D转换器，由AC电流驱动的超导放大电路和半导体电路的情况下，电路的动作彼此同步，数据信号 从单通量量子电路传输到半导体电路。 将作为超导放大器电路的电源的AC电流作为主时钟信号输入到单通量量电路和半导体电路，以使电路的操作与主时钟信号同步。 单通量量电路具有时钟信号倍频电路，解复用电路和存储电路。
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公开(公告)号：US07129869B2
公开(公告)日：2006-10-31
申请号：US10862418
申请日：2004-06-08
申请人： Futoshi Furuta , Kazuo Saitoh
发明人： Futoshi Furuta , Kazuo Saitoh
IPC分类号： H03M1/00
CPC分类号： H03M1/0624 , G11C7/06 , H03M1/1215
摘要： In an A/D converter having a single flux quantum circuit having a flux quantum as an information carrier, a superconducting amplifier circuit driven by an AC current, and a semiconductor circuit, the operations of the circuits are synchronized with each other and a data signal from the single flux quantum circuit is transmitted to the semiconductor circuit.An AC current as the power source of a superconducting amplifier circuit is inputted as a master clock signal to the single flux quantum circuit and the semiconductor circuit to synchronize the operations of the circuits with the master clock signal. The single flux quantum circuit has a clock signal frequency multiplier circuit, a demultiplexing circuit and a memory circuit.
摘要翻译： 在具有作为信息载体的通量量子的单通量量子电路的A / D转换器，由AC电流驱动的超导放大电路和半导体电路的情况下，电路的动作彼此同步，数据信号 从单通量量子电路传输到半导体电路。 将作为超导放大器电路的电源的AC电流作为主时钟信号输入到单通量量电路和半导体电路，以使电路的操作与主时钟信号同步。 单通量量电路具有时钟信号倍频电路，解复用电路和存储电路。
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6.发明申请公开(公告)号：US20080064605A1
公开(公告)日：2008-03-13
申请号：US11798021
申请日：2007-05-09
IPC分类号： H01L39/24
CPC分类号： H01L39/2487 , H01L39/141
摘要： A superconducting magnesium diboride (MgB2) thin film showing a high critical current density to an angle of an applied magnetic field for a wide range is provided. Columnar crystal grains of MgB2 grow with the same tilted to the normal line of the substrate by supplying a magnesium (Mg) flux and a boron (B) flux from direction tilted each to the normal axis of a substrate in high vacuum. The superconducting magnesium diboride (MgB2) thin film comprising a plurality of layers containing MgB2 columnar crystal grains with the angle of the grain boundaries being different from each other is formed by controlling the angle of supplying the magnesium (Mg) flux and the boron (B) flux to the substrate.
摘要翻译： 提供了一种超导二硼化镁（MgB 2 O 2）薄膜，其显示出对于宽范围施加的磁场的角度具有高的临界电流密度。 MgB 2的柱状晶粒通过从方向倾斜的方向以相对于基板的法线方向倾斜的方式以与基板的法线相同的方式生长，从而提供镁（Mg）助熔剂和硼（B） 底物在高真空中。 包含晶界的角度彼此不同的包含MgB 2柱状晶粒的多个层的超导二硼化镁（MgB 2 O 2）薄膜通过 控制向基板供应镁（Mg）助熔剂和硼（B）助焊剂的角度。
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公开(公告)号：US20060119360A1
公开(公告)日：2006-06-08
申请号：US11192081
申请日：2005-07-29
IPC分类号： G01V3/00
CPC分类号： G01R33/34053 , G01R33/34007 , G01R33/34023 , G01R33/34069 , G01R33/34092 , H01F5/003 , H01F6/00 , H01F6/06 , H01F17/0013
摘要： An NMR probe having a high-sensitivity solenoid probe coil for receiving free induction decay (FID) signals in nuclear magnetic resonance (NMR) spectroscopy, and an NMR spectrometer which incorporates this probe. The solenoid probe coil is fabricated by a building block approach where it mainly consists of coil substrates having superconducting thin film coils made from superconducting thin film thereon, and side holding plates and a wiring substrate with line pattern of superconducting thin films which are both perpendicular to the coil substrates. The superconducting thin film coils are connected with the line patterns of superconducting thin films by capacitive coupling to make the solenoid coil configuration and solenoid probe coil of superconducting material.
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公开(公告)号：US06958608B2
公开(公告)日：2005-10-25
申请号：US10852254
申请日：2004-05-25
申请人： Kazumasa Takagi , Kazuo Saitoh , Hisaaki Ochi , Hiroshi Morita , Masae Kiryu , Michiya Okada
发明人： Kazumasa Takagi , Kazuo Saitoh , Hisaaki Ochi , Hiroshi Morita , Masae Kiryu , Michiya Okada
IPC分类号： G01R33/32 , G01R33/34 , G01R33/343 , G01V3/00
CPC分类号： G01R33/34053 , G01R33/34007 , G01R33/34023 , G01R33/34092 , G01R33/3456
摘要： The invention provides nuclear magnetic resonance equipment realizing improved sensitivity of a probe for receiving a free induction decay (FID) signal in nuclear magnetic resonance (NMR) spectroscopy in a high frequency band of 600 MHz or higher. By manufacturing a solenoid coil of a higher filling factor by using a superconductor of extremely low resistance to high frequency current, sensitivity is increased. A superconducting thin film made of magnesium diboride (MgB2) formed on a donut plate-type substrate is disposed so that the film surface becomes parallel with the uniform magnetic field. The object is realized by a probe made by a solenoid coil formed by connecting a plurality of coil parts by capacitive coupling via a normal metal lead.
摘要翻译： 本发明提供了在600MHz或更高的高频带内实现核磁共振（NMR）光谱中接收自由感应衰减（FID）信号的探头的灵敏度提高的核磁共振设备。 通过使用对高频电流具有极低电阻的超导体制造具有较高填充系数的电磁线圈，灵敏度增加。 设置形成在环状基板上的由二硼化镁（MgB 2 N 2）构成的超导薄膜，使得膜表面与均匀的磁场平行。 该目的通过由螺线管线圈制成的探针实现，该螺线管通过通过电容耦合经由正常金属引线连接多个线圈部分而形成。
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9.发明授权Herbicidal composition containing 2-(4-chloro-2-fluoro-5-(N-pentyloxy carbonylmethoxy)-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione 失效含有2-（4-氯-2-氟-5-（N-戊氧基羰基甲氧基）-4,5,6,7-四氢-2H-异吲哚-1,3-二酮的除草组合物
公开(公告)号：US5698492A
公开(公告)日：1997-12-16
申请号：US958695
申请日：1992-10-09
申请人： Masaharu Sakaki , Kazuo Saitoh
发明人： Masaharu Sakaki , Kazuo Saitoh
CPC分类号： A01N57/20
摘要： There is disclosed a herbicidal composition containing (a) 2-�4-chloro-2-fluoro-5-(n-pentyloxycarbonylmethoxy)phenyl!-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione and (b) at least one selected from the group consisting of N-(phosphonomethyl)glycine, (2-amino-4-methylphosphinobutyryl)alanylalanine, DL-homoalanin-4-yl(methyl)phosphinic acid and salts thereof. Also disclosed is a method for controlling undesired weeds by application of the herbicidal composition.
摘要翻译： 公开了一种除草组合物，其含有（a）2- [4-氯-2-氟-5-（正戊氧基羰基甲氧基）苯基] -4,5,6,7-四氢-2H-异吲哚-1,3-二酮 和（b）选自N-（膦酰基甲基）甘氨酸，（2-氨基-4-甲基膦酰基丁酰基）丙氨酸丙氨酸，DL-高丙氨酸-4-基（甲基）次膦酸及其盐中的至少一种。 还公开了通过施用除草组合物来控制不需要的杂草的方法。
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10.发明授权Superconducting device including plural superconducting electrodes formed on a normal conductor 失效超导装置包括形成在正常导体上的多个超导电极
公开(公告)号：US5442195A
公开(公告)日：1995-08-15
申请号：US136984
申请日：1993-10-18
申请人： Kazuo Saitoh , Toshikazu Nishino , Mutsuko Hatano
发明人： Kazuo Saitoh , Toshikazu Nishino , Mutsuko Hatano
CPC分类号： H01L27/18 , Y10S505/832
摘要： A superconducting device may include a superconducting weak link equipped with plural superconducting devices that are used as input-output terminals formed on the same plane and at least one current source for applying current to at least one of these superconducting electrodes. A superconducting device suitable for high integration can be realized as it enables structuring of a superconducting weak link 1 equipped with plural superconducting electrodes 101, 102, 103 and 104 that can be used as input-output terminals and changing symmetry of superconducting electrode arrangement through the form of a normal conductor 201 which is forming a superconducting weak link. In addition, when this superconducting device is used as a quasi-particle injection type device, a superconducting device with plural superconducting electrodes that can be used for a gate electrode, drain electrode or control electrode can be realized. Further, a superconducting device equipped with new functions (e.g. motion as a neuron device) which are capable of high integration can be realized by utilizing these characteristics. Furthermore, being a proximity effect type, superconducting weak link has an advantage of realizing an ultra highspeed, low electricity consuming switching device.
摘要翻译： 超导装置可以包括配备有多个超导装置的超导弱连接器，所述多个超导装置用作形成在同一平面上的输入 - 输出端子和用于向这些超导电极中的至少一个施加电流的至少一个电流源。 可以实现适用于高集成度的超导装置，因为它能够构成配备有可用作输入 - 输出端子的多个超导电极101,102,103和104的超导弱连接件1，并且通过所述超导电极装置改变超导电极装置的对称性 形成超导弱连接的正常导体201的形式。 此外，当该超导装置用作准粒子注入型装置时，可以实现具有可用于栅电极，漏电极或控制电极的多个超导电极的超导装置。 此外，可以通过利用这些特性来实现配备有能够高集成度的新功能（例如作为神经元装置的运动）的超导装置。 此外，作为接近效应型，超导弱连接具有实现超高速，低耗电开关器件的优点。
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