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Class Information
Number: 324/248
Name: Electricity: measuring and testing > Magnetic > Magnetometers > Superconductive magnetometers
Description: Subject matter wherein the apparatus to sense and indicate the sensing of a magnetic field includes a sensor of the magnetic field or a magnetic shield for the apparatus to sense a magnetic field made of a material which has nearly zero resistance in one state and appreciable resistance in a second state.










Patents under this class:
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Patent Number Title Of Patent Date Issued
5894220 Apparatus for microscopic imaging of electrical and magnetic properties of room-temperature objects Apr. 13, 1999
5891031 Biomedical magnetic field measuring apparatus having different types of pickup coils arranged at the same position and including crosstalk correction Apr. 6, 1999
5885215 Method of reconstructing the spatial current distribution in a biological object, and device for performing the method Mar. 23, 1999
5880647 High frequency signal generator using superconducting quantum interference device Mar. 9, 1999
5880588 Magnetic measuring apparatus with sensor guide device and method for installing sensors therein Mar. 9, 1999
5867024 RF-squid with an integrated lambda-microwave resonator useful as highly sensitive magnetometer Feb. 2, 1999
5863868 Superconductive quantum interference device for digital logic circuits Jan. 26, 1999
5854492 Superconducting quantum interference device fluxmeter and nondestructive inspection apparatus Dec. 29, 1998
5844407 Method using squid array for improving the sensitivity of a slot antenna Dec. 1, 1998
5834938 Nondestructive inspection apparatus with superconducting magnetic sensor Nov. 10, 1998
5825183 Radial differential squid magnetic flux meter Oct. 20, 1998
5817291 Method of ultrasonic imaging comprising administering biocompatible spheres or particles Oct. 6, 1998
5794620 Method of reconstructing the spatial current distribution in a biological object, and device for performing the method Aug. 18, 1998
5793203 Measurement system with noise reduction circuit Aug. 11, 1998
5786690 High resolution three-axis scanning squid microscope having planar solenoids Jul. 28, 1998
5767043 Multiple squid direct signal injection device formed on a single layer substrate Jun. 16, 1998
5752514 Biomagnetism measuring method and apparatus May. 19, 1998
5730131 Method of estimating bioelectric current source Mar. 24, 1998
5713354 Biomagnetometer with whole head coverage of a seated reclined subject Feb. 3, 1998
5686836 Apparatus for reducing noise due to sensor vibration during measurement of a weak magnetic field Nov. 11, 1997
5682889 Method and apparatus for deducing bioelectric current sources Nov. 4, 1997
5671740 Method and apparatus for deducing bioelectric current sources Sep. 30, 1997
5668472 Multichannel flux measuring apparatus having function for compensating interference due to crosstalk Sep. 16, 1997
5666052 Magnetic sensor having a superconducting quantum interference device and a pickup coil wound on a tubular resinous bobbin with embedded high thermal conductivity material Sep. 9, 1997
5658636 Method to prevent adhesion of micromechanical structures Aug. 19, 1997
5656937 Low-noise symmetric dc SQUID system having two pairs of washer coils and a pair of Josephson junctions connected in series Aug. 12, 1997
5646526 Josephson signal detector, measurement device using the same, and method of use Jul. 8, 1997
5635836 Mechanical apparatus with rod, pivot, and translation means for positioning a sample for use with a scanning microscope Jun. 3, 1997
5635834 SQUID detector with flux feedback coil sized and located to produce uniform feedback flux Jun. 3, 1997
5633583 Magnetic telescope with enhanced noise suppression May. 27, 1997
5625290 Complex superconducting quantum interference device and circuit Apr. 29, 1997
5617856 Biological information-measuring apparatus Apr. 8, 1997
5601081 Method and apparatus for deducing bioelectric current sources Feb. 11, 1997
5600243 Magnetically shielded magnetic sensor with squid and ground plane Feb. 4, 1997
5600242 Electrically small broadband high linear dynamic range deceiver including a plurality of active antenna elements Feb. 4, 1997
5596273 Highly sensitive magnetic field detector using low-noise DC SQUID Jan. 21, 1997
5574369 Detection and communications device employing stochastic resonance Nov. 12, 1996
5574290 Superconducting quantum interference device Nov. 12, 1996
5548130 DC superconducting quantum interference device with shield layer Aug. 20, 1996
5548262 Flux transformer formed of an oxide superconducting thin film and method for manufacturing the same Aug. 20, 1996
5537037 Apparatus with cancel coil assembly for cancelling a field parallel to an axial direction to the plural coils and to a squid pick up coil Jul. 16, 1996
5532592 Squid control apparatus with non-cryogenic flux-locked loop disposed in close proximity to the squid Jul. 2, 1996
5526811 Apparatus and process for determining the sources of biomagnetic activity Jun. 18, 1996
5523686 Probes for scanning SQUID magnetometers Jun. 4, 1996
5506500 Magnetic property characterization system employing a single sensing coil arrangement to measure both AC susceptibility and DC magnetization Apr. 9, 1996
5506200 Compact superconducting magnetometer having no vacuum insulation Apr. 9, 1996
5495849 Biologic magnetometer for determining an electric current distribution in a living organ Mar. 5, 1996
5494035 Method for detecting presence of ferromagnetic objects in a medical patient Feb. 27, 1996
5494033 Biomagnetometer with sealed vacuum enclosure and solid conduction cooling Feb. 27, 1996
5491410 Superconducting magnetic sensor having a ferromagnetic element for converging an external magnetic field Feb. 13, 1996

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