Patents
Patents for G01R 33 - Arrangements or instruments for measuring magnetic variables (52,887)
10/1991
10/01/1991US5053706 Compact low-distortion squid magnetometer
10/01/1991US5053705 Read/write coaxial magnetic head for use with apparatus for measuring the surface of superconductors
10/01/1991US5053704 Flow imager for conductive materials
10/01/1991US5053703 Electromagnetic probe for measuring the thickness of skin layers
10/01/1991US5053617 Instrument for concurrently optically measuring thermal and electric quantities
10/01/1991US5053383 Method of reducing critical current density of oxide superconductors by radiation damage
10/01/1991US5052398 QRS filter for real time heart imaging with ECG monitoring in the magnetic field of an NMR imaging system and NMR imaging apparatus employing such filter
09/1991
09/27/1991CA2034477A1 Gradient amplifier system with flexible amplifier allocation
09/25/1991WO1991014457A1 Method for the study of internal body tissues
09/25/1991EP0448475A1 Magnometer with improved shield
09/25/1991EP0448368A2 Multichannel SQUID flux meter
09/25/1991EP0448331A2 Mass spectrometry systems
09/25/1991EP0448114A1 Thin-film magnetic material and process of production thereof
09/25/1991EP0447970A2 Method and apparatus for imaging blood vessels employing magnetic resonance
09/25/1991CA2079099A1 Method for the study of internal body tissues
09/24/1991US5051903 Method and apparatus for predicting values of a varying periodic phenomenon
09/24/1991US5051700 Feedback circuit for noiseless damping of the Q of an MRI receiver coil antenna
09/24/1991US5051699 Magnetic resonance imaging system
09/24/1991US5051698 NMR imaging systems
09/24/1991US5051697 Flow angiology with static signal suppression
09/24/1991US5051695 Thin film vector magnetometer
09/24/1991US5050609 Magnetization transfer contrast and proton relaxation and use thereof in magnetic resonance imaging
09/24/1991US5050607 High resolution magnetic resonance imaging of body cavities
09/24/1991US5050605 Magnetic resonance imaging antennas with spiral coils and imaging methods employing the same
09/24/1991CA2038529A1 Shielded magnetometer
09/24/1991CA1289621C Frequency difference digital compass and magnetometer
09/18/1991EP0447039A2 Resizing MRI images using fourier transformation
09/18/1991EP0446998A2 Nuclear spin examination apparatus
09/18/1991EP0446923A2 High-sensitive magnetometer
09/18/1991EP0446496A2 Shielded magnetizing device and angular rate sensor in which such a device is used
09/18/1991CN1054668A Zero magnetic flow direct current mutual-inductor
09/17/1991US5049848 High field strength magnet, preferably having remote shimming of field
09/17/1991US5049821 Continuously variable field of view surface coil for NMR imaging
09/17/1991US5049820 Magnetic resonance signal acquisition methods
09/17/1991US5049819 Magnetic resonance analysis in real time, industrial usage mode
09/17/1991US5049818 Gradiometer for detecting weak magnetic fields including grooves carrying superconducting thin film conductors and method of making same
09/17/1991CA1289081C Masking sound device
09/13/1991WO1991014178A1 Lipophilic contrast agents for diagnostic image analysis
09/13/1991CA2077556A1 Lipophilic contrast agents for diagnostic image analysis
09/11/1991EP0445960A1 NMR imaging
09/11/1991EP0445441A1 Angular rate sensor
09/11/1991EP0445362A1 Magnetic induction measuring apparatus
09/11/1991EP0445125A1 Low field nmr machine with dynamic polarization
09/11/1991EP0233237B1 Low r.f. dosage magnetic resonance imaging of high velocity flows
09/10/1991WO1991014186A1 Improvements in and relating to magnetic resonance imaging
09/10/1991US5048105 Method and apparatus for enlarging or reducing images
09/10/1991US5047720 Correction device using magnetic elements for correcting unhomogeneities of the magnetic field in a magnet
09/10/1991US5047636 Linear prediction ion cyclotron resonance spectrometry apparatus and method
09/10/1991US5046498 Magnetic resonance human medical and veterinary imaging method
09/10/1991CA1288812C Thermometry using phase transitions in encapsulated liquid crystals andmagnetic resonance detection methods
09/10/1991CA1288806C Method for homogenizing a static magnetic field over an arbitrary volume
09/05/1991WO1991013451A1 Method and apparatus for tuning and matching an nmr coil
09/05/1991WO1991013367A1 Roll-over aliasing suppression in undersampled images
09/05/1991WO1991013366A1 Method and apparatus for magnetic detection
09/05/1991WO1991013351A1 Method for enhancing nuclear magnetic resonance imaging using a nitroxide
09/05/1991DE4106470A1 Sensor using Hall effect - has measuring transducer in magnetic circuit consisting of two flux conductive pieces opposite permanent magnet
09/04/1991EP0445017A1 Coaxial resonator with distributed tuning capacity
09/04/1991EP0444873A2 Apparatus for measuring distribution of magnetic field
09/04/1991EP0444151A1 Magnetic susceptibility imaging (msi).
09/04/1991EP0444096A1 System for determining the position of receptor regions.
09/04/1991EP0316312B1 radio-frequency energization method in an nmr experiment
09/04/1991EP0242391B1 A magnetic self-ranging system for use in the degaussing of ships
09/04/1991EP0216925B1 Determination of t1 relaxation times used in automated nuclear magnetic resonance image synthesis
09/04/1991CA2037394A1 Determination of magnetic interference in a borehole
09/03/1991US5045826 Actively shielded magnetic resonance magnet without cryogens
09/03/1991US5045794 Method of optimizing passive shim placement in magnetic resonance magnets
09/03/1991US5045793 Toroids as NMR detectors in metal pressure probes and in flow systems
09/03/1991US5045792 Split and non-circular magnetic resonance probes with optimum field uniformity
09/03/1991US5045791 Nuclear magnetic resonance imaging method
09/03/1991US5045790 Investigating a sample using NMR
09/03/1991US5045788 Digital SQUID control system for measuring a weak magnetic flux
09/03/1991US5045777 Electric signal producing system
09/03/1991US5045304 Metallic imaging agent, incubation, encapsulation, labelling, suspension, administering by intravenous infusion
09/03/1991US5044368 Diagnostic electrode for use with magnetic resonance imaging
09/03/1991CA1288475C Instrument and method for testing for fluid constituents
09/02/1991CA2036752A1 Solenoid actuator having a magnetic flux sensor
08/1991
08/28/1991EP0443677A2 Quadrature surface coil construction for magnetic resonance imaging apparatus
08/28/1991EP0443069A1 Method of measuring the electric or magnetic field pattern with a sensor arrangement
08/28/1991CN2083754U Pliers type wide frequency band current tester
08/27/1991US5043665 Magnetic resonance imaging system
08/27/1991US5043664 Magnetic resonance spectroscopy method and device for performing the method
08/27/1991US5043529 Construction of shielded rooms using sealants that prevent electromagnetic and magnetic field leakage
08/27/1991US5042488 Methods employing deuterium for obtaining direct, observable deuterium magnetic resonance images in vivo and in situ
08/27/1991US5042485 Cine mr imaging method and apparatus
08/22/1991WO1991012545A1 Method for producing an index lattice in an optical fibre, and a quasi-distributed sensor array formed therein
08/22/1991WO1991012538A1 Magnetic field generating assembly
08/22/1991WO1991012537A1 Series/parallel double-tuned nmr coils
08/22/1991WO1991012024A1 Triarylmethyl radicals and the use of inert carbon free radicals in mri
08/22/1991DE4104246A1 Generating NMR tomography image with nonlinear image processing - using relative amplification of strong image data signals and achieving reduced processing times
08/22/1991DE4005079A1 Magnetic field gradient tensor measurement - uses five or more planar gradiometers on three or more non-parallel surfaces
08/21/1991EP0442536A2 Atomic force sensor head for measuring the properties of a data store
08/21/1991EP0442407A1 Ferromagnetic thin film magnetic field sensor
08/21/1991EP0442034A1 Thermomagnetic oxygen sensor
08/21/1991EP0441862A1 Magnetic field generating assembly.
08/21/1991EP0441797A1 Vascular magnetic imaging method and agent.
08/20/1991US5042077 Method of highlighting subtle contrast in graphical images
08/20/1991US5041891 Amplifier section can output high voltage
08/20/1991US5041791 Magnetic resonance RF probe with electromagnetically isolated transmitter and receiver coils
08/20/1991US5041790 Dual-tuned RF coil for MRI spectroscopy
08/20/1991US5041789 Magnetic-resonance instrument employing barcode experiment specification