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1. 发明授权

US11915100B2 Resonator, oscillator, and quantum computer 有权
公开(公告)号：US11915100B2
公开(公告)日：2024-02-27
申请号：US17115971
申请日：2020-12-09
申请人： NEC CORPORATION
发明人： Tomohiro Yamaji , Tsuyoshi Yamamoto
IPC分类号： G06N10/00 , H03B15/00 , G06N10/40 , H10N60/82 , H10N60/80
CPC分类号： G06N10/00 , G06N10/40 , H03B15/003 , H10N60/805 , H10N60/82
摘要： A resonator, an oscillator, and a quantum computer capable of preventing oscillation conditions for generating a parametric oscillation from becoming complicated are provided. A resonator includes at least one loop circuit in which a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction are connected in a ring shape, in which critical current values of the first and second Josephson junctions are different from each other.

2. 发明授权

US5204641A Conducting plane resonator stabilized oscillator 失效
标题翻译：导电平面谐振器稳压振荡器
公开(公告)号：US5204641A
公开(公告)日：1993-04-20
申请号：US849504
申请日：1992-03-11
申请人： Slawomir J. Fiedziuszko , John A. Curtis
发明人： Slawomir J. Fiedziuszko , John A. Curtis
IPC分类号： H01P7/10 , H03B1/04 , H03B5/04 , H03B5/18 , H03B7/14 , H03B15/00
CPC分类号： H03B15/003 , H03B5/1852 , H03B1/04 , H03B15/00 , H03B2009/126 , H03B2200/0016 , H03B5/04 , H03B7/14
摘要： A conducting plane resonator (10) is used to stabilize an oscillating means (12) typically operating at microwave frequencies. The conducting plane resonator (10) is in proximity to the oscillating means (12) and is magnetically coupled thereto. In a first implementation, the conducting plane resonator (10) is magnetically coupled to an input conductor (16) of the oscillating means (12). In a second implementation, the conducting plane resonator (10) is magnetically coupled to an output conductor (18), which is coupled to the oscillating means (12). In a third implementation, the conducting plane resonator (10) is magnetically coupled to both the input conductor (16) and the output conductor (18). The conducting plane resonator (10) preferably comprises a thin, substantially planar conducting plane and is dimensioned such that it is resonant at the desired operating frequency. The conducting plane resonator (10) is preferably fabricated of a superconductor material to achieve high-Q performance.

3. 发明授权

US2914735A Superconductor modulator circuitry 失效
标题翻译：超导体调制器电路
公开(公告)号：US2914735A
公开(公告)日：1959-11-24
申请号：US68722557
申请日：1957-09-30
申请人： IBM
发明人： YOUNG DONALD R
IPC分类号： G11C11/44 , H01L39/00 , H03C1/00 , H03C7/02 , H03D7/00 , H03K17/92
CPC分类号： H03B15/003 , G11C11/44 , H01L39/00 , H03C1/00 , H03C7/02 , H03D7/005 , H03K17/92 , Y10S336/01 , Y10S505/86 , Y10S505/863 , Y10S505/872 , Y10T29/49014

4. 发明授权

US12021520B2 Resonator, oscillator, and quantum computer 有权
公开(公告)号：US12021520B2
公开(公告)日：2024-06-25
申请号：US17626567
申请日：2020-06-26
申请人： NEC Corporation
发明人： Tsuyoshi Yamamoto , Tomohiro Yamaji , Yoshihito Hashimoto
IPC分类号： H03K17/92 , G06N10/40 , H03B15/00
CPC分类号： H03K17/92 , G06N10/40 , H03B15/003
摘要： A resonator, an oscillator, and a quantum computer in which the area occupied by the circuit can be reduced is provided. A resonator (100) includes a loop circuit (110) in which a first superconducting line (101), a first Josephson junction (103), a second superconducting line (102), and a second Josephson junction (104) are connected in a ring shape, and a capacitor (120). The capacitor (120) and the loop circuit (110) are connected in a ring shape.

5. 发明授权

US11955929B2 Oscillation apparatus, quantum computer, and control method 有权
公开(公告)号：US11955929B2
公开(公告)日：2024-04-09
申请号：US17626576
申请日：2020-06-26
申请人： NEC Corporation
发明人： Tsuyoshi Yamamoto , Yoshihito Hashimoto
IPC分类号： H03B15/00 , G06N10/00
CPC分类号： H03B15/003 , G06N10/00
摘要： An oscillation apparatus includes: an oscillator including a resonator and a magnetic-field generating unit, the resonator including a loop circuit and a capacitor, the loop circuit including a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction connected in a ring shape, the magnetic-field generating unit being configured to apply a magnetic field to the loop circuit, and the oscillator being configured to perform parametric oscillation; a read-out unit for reading out an internal state of the oscillator; and a filter configured to restrict transmission of a signal in a predetermined frequency band. A circuit in which the capacitor and the loop circuit are connected in a ring shape is connected to the read-out unit through the filter.

6. 发明公开

US20230299719A1 OSCILLATOR 审中-公开
公开(公告)号：US20230299719A1
公开(公告)日：2023-09-21
申请号：US18134145
申请日：2023-04-13
申请人： NEC Corporation
发明人： Yoshihito HASHIMOTO , Tsuyoshi Yamamoto , Tomohiro Yamaji
IPC分类号： H03B15/00 , H10N60/12
CPC分类号： H03B15/003 , H10N60/12
摘要： An oscillator in which crosstalk can be reduced is provided. An oscillator includes a SQUID, a transmission line connected to the SQUID, a ground plane, and a first connection circuit disposed in a vicinity of a node of an electric field of a standing wave that is generated when the oscillator is oscillating, the first connection circuit connecting parts of the ground plane located on both sides of the transmission line to each other.

7. 发明授权

US08994221B2 Method and system for long range wireless power transfer 有权
标题翻译：远程无线电力传输的方法和系统
公开(公告)号：US08994221B2
公开(公告)日：2015-03-31
申请号：US13151020
申请日：2011-06-01
申请人： Raymond J. Sedwick
发明人： Raymond J. Sedwick
IPC分类号： H01F27/42 , H01F37/00 , H01F38/00 , H03B15/00 , H02J17/00
CPC分类号： H03B15/003 , H02J7/025 , H02J17/00 , H02J50/12 , H02J50/50 , H02J50/70 , Y10T307/25
摘要： A wireless energy transfer system includes a primary and one (or more) secondary oscillators for transferring energy therebetween when resonating at the same frequency. The long range (up to and beyond 100 m) efficient (as high as and above 50%) energy transfer is achieved due to minimizing (or eliminating) losses in the system. Superconducting materials are used for all current carrying elements, dielectrics are either avoided altogether, or those are used with a low dissipation factor, and the system is operated at reduced frequencies (below 1 MHz). The oscillators are contoured as a compact flat coil formed from a superconducting wire material. The energy wavelengths exceed the coils diameter by several orders of magnitude. The reduction in radiative losses is enhanced by adding external dielectric-less electrical capacitance to each oscillator coil to reduce the operating frequency. The dielectric strength of the capacitor is increased by applying a magnetic cross-field to the capacitor to impede the electrons motion across an air gap defined between coaxial cylindrical electrodes.
摘要翻译：无线能量传递系统包括在相同频率下谐振时，用于在其间传递能量的主振荡器和一个（或更多个）次振荡器。由于系统中的损耗最小化（或消除），实现了长距离（高达100 m）的高效（高达50％以上）的能量传输。超导材料用于所有载流元件，电介质完全可以避免，或者以低损耗因子使用，系统以低频（低于1 MHz）工作。振荡器的轮廓是由超导线材形成的紧凑型扁平线圈。能量波长超过线圈直径几个数量级。通过向每个振荡器线圈添加外部无电介质电容来降低工作频率，可以增强辐射损耗的降低。通过向电容器施加磁交变场来增加电容器的介电强度，以阻止跨同轴圆柱形电极间限定的气隙的电子运动。

8. 发明申请

US20120154065A1 OSCILLATING CIRCUIT WITH GIANT MAGNETORESISTANCE EFFECT JUNCTIONS 失效
标题翻译：具有巨大磁阻效应功能的振荡电路
公开(公告)号：US20120154065A1
公开(公告)日：2012-06-21
申请号：US13327388
申请日：2011-12-15
申请人： Mykhailo ZARUDNIEV , Eric COLINET , Patrick VILLARD
发明人： Mykhailo ZARUDNIEV , Eric COLINET , Patrick VILLARD
IPC分类号： H03B5/20
CPC分类号： H03B15/003 , Y10T428/1107
摘要： An oscillator including two groups of elementary junctions having giant magnetoresistance effect traversed by electric currents, the junctions of each of the two groups being in series and energized by respective main currents and the voltages across the terminals of the groups being added together to provide a voltage on an output of the oscillating circuit. The voltage across the terminals of one or more junctions of a first group is applied to a first input of a phase comparator and the voltage across the terminals of one or more junctions of the other group is applied to another input of the phase comparator, the phase comparator providing on two outputs secondary currents of the same amplitude and of opposite signs, which are dependent on the mean phase difference between the voltages applied to the inputs, the secondary currents each being added to a respective main current.
摘要翻译：包括由电流穿过的具有巨磁电阻效应的两组基本结的振荡器，两组中的每一个的接点串联并由相应的主电流激励，并且将该组的端子两端的电压加在一起以提供电压在振荡电路的输出上。将第一组的一个或多个结的端子上的电压施加到相位比较器的第一输入端，并且将另一组的一个或多个结的端子两端的电压施加到相位比较器的另一个输入端，相位比较器提供两个输出具有相同幅度和相反符号的二次电流，其取决于施加到输入端的电压之间的平均相位差，每个次级电流被加到相应的主电流。

9. 发明授权

US5790078A Superconducting mixer antenna array 失效
标题翻译：超导混频天线阵
公开(公告)号：US5790078A
公开(公告)日：1998-08-04
申请号：US742386
申请日：1996-11-01
申请人： Katsumi Suzuki , Youichi Enomoto , Shoji Tanaka , Keiichi Yamaguchi , Arthur T. Murphy
发明人： Katsumi Suzuki , Youichi Enomoto , Shoji Tanaka , Keiichi Yamaguchi , Arthur T. Murphy
IPC分类号： H01Q1/24 , H01Q1/36 , H03D9/06 , H01Q1/38
CPC分类号： H03B15/003 , H01Q1/247 , H01Q1/364 , H03D9/06 , Y10T29/49016
摘要： A superconducting patch antenna array, operative at a temperature lower than or equal to that of liquid nitrogen, includes a superconducting mixer comprising at least one non-linear Josephson junction to transform the received high frequency signal to a lower intermediate frequency for purposes of reducing the transmission loss and thereby increasing the antenna performance.
摘要翻译：在低于或等于液氮的温度下工作的超导贴片天线阵列包括包含至少一个非线性约瑟夫逊结的超导混频器，以将接收到的高频信号转换为较低的中频，目的是减少传输损耗，从而增加天线性能。

10. 发明授权

US12034404B2 Method of fabricating a superconducting parallel plate capacitor 有权
公开(公告)号：US12034404B2
公开(公告)日：2024-07-09
申请号：US17158484
申请日：2021-01-26
申请人： D-WAVE SYSTEMS INC.
发明人： Andrew J. Berkley , Loren J. Swenson , Mark H. Volkmann , Jed D. Whittaker , Paul I. Bunyk , Peter D. Spear , Christopher B. Rich
IPC分类号： H03B15/00 , G06N10/20 , G06N10/40 , H01P7/08 , H01P7/10 , H03H7/01 , H10N60/12 , G06N10/00
CPC分类号： H03B15/003 , G06N10/20 , G06N10/40 , H01P7/08 , H01P7/105 , H03H7/01 , H10N60/12 , G06N10/00 , H03B2201/02
摘要： A superconducting input and/or output system employs at least one microwave superconducting resonator. The microwave superconducting resonator(s) may be communicatively coupled to a microwave transmission line. Each microwave superconducting resonator may include a first and a second DC SQUID, in series with one another and with an inductance (e.g., inductor), and a capacitance in parallel with the first and second DC SQUIDs and inductance. Respective inductive interfaces are operable to apply flux bias to control the DC SQUIDs. The second DC SQUID may be coupled to a Quantum Flux Parametron (QFP), for example as a final element in a shift register. A superconducting parallel plate capacitor structure and method of fabricating such are also taught.

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