Patents for G01R 33 - Arrangements or instruments for measuring magnetic variables (52,887) |
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06/06/1989 | US4837516 Tuning device for nuclear magnetic resonance imaging apparatus and nuclear magnetic resonance imaging apparatus including the tuning device |
06/06/1989 | US4837515 Radio frequency coil for nuclear magnetic resonance imaging |
06/06/1989 | US4837513 MRI using asymmetric RF nutation pulses and asymmetric synthesis of complex conjugated SE data to reduce TE and T2 decay NMR spin echo responses |
06/06/1989 | US4837512 Method and system for acquiring motional information of object in magnetic resonance |
06/06/1989 | US4836209 NMR imaging of moving material using variable spatially selected excitation |
06/01/1989 | WO1989004971A1 Solenoidal surface coils for magnetic resonance imaging |
06/01/1989 | DE3839290A1 Method and apparatus of measuring the specific surface area on porous or pulverulent materials by measuring the spin-lattice relaxation time of protons of an impregnant |
05/31/1989 | EP0318293A2 Apparatus and method for processing tomographic data |
05/31/1989 | EP0318257A2 Coil arrangements for magnetic resonance apparatus |
05/31/1989 | EP0318212A2 Magnetic resonance imaging methods and apparatus |
05/31/1989 | EP0318165A1 NMR spinner speed control |
05/31/1989 | EP0317879A1 Device for detecting a magnetic medium |
05/31/1989 | EP0317853A1 Magnet assembly for a nuclear spin tomography apparatus with superconducting main-field coils and normally conducting gradient coils |
05/31/1989 | EP0317775A2 Balanced self-shielded gradient coils |
05/31/1989 | EP0175789B1 Thermal barrier for variable temperature nmr |
05/31/1989 | CN2038630U Magnetic field dictetor |
05/30/1989 | US4835690 Integrated expert system for medical imaging scan, set-up, and scheduling |
05/30/1989 | US4835510 Magnetoresistive element of ferromagnetic material and method of forming thereof |
05/30/1989 | US4835506 Hollow substantially hemispherical permanent magnet high-field flux source |
05/30/1989 | US4835504 Block for correcting magnetic-field homogeneity and a magnet fitted with blocks of this type |
05/30/1989 | US4835485 Unconditionally-stable ultra low noise R.F. preamplifier |
05/30/1989 | US4835472 Local coil for detecting nuclear magnetic resonance signals from an examination subject |
05/30/1989 | US4835471 Measuring device with oscillation circuit including an exciting coil and tuned to a specific resonant frequency, for determining content of magnetizable substances in materials |
05/30/1989 | US4835415 Circuit for amplifying and shaping an AC signal |
05/30/1989 | CA1254943A1 Method of reducing artefacts in images formed by means of fourier zeugmatography |
05/24/1989 | EP0317090A2 Localised coil arrangements for receiving signals from resonating nuclei |
05/24/1989 | EP0316991A1 Method of and device for automatic phase correction of complex NMR spectra |
05/24/1989 | EP0316901A2 Switch for high magnetic field |
05/24/1989 | EP0316316A1 Medical examination table for nmr or tomodensitometry |
05/24/1989 | EP0316312A1 radio-frequency energization method in an nmr experiment. |
05/23/1989 | US4833434 Superconducting electromagnet for NMR imaging |
05/23/1989 | US4833433 Magnet system for nuclear spin tomography having superconducting coils and a cold shield |
05/23/1989 | US4833429 Quadrature combiner |
05/23/1989 | US4833412 Double tuned circuit for distributed lumped capacitance observe coils |
05/23/1989 | US4833411 Methods of imaging solids by NMR techniques |
05/23/1989 | US4833410 System of coils for producing magnetic field gradients of very uniform polarization in an imaging or spectroscopy installation by NMR |
05/23/1989 | US4833409 Apparatus for dynamically disabling an NMR field coil |
05/23/1989 | US4833408 NMR chemical shift imaging method with influence of intensity distribution of static magnetic field removed |
05/23/1989 | US4833407 Scan time reduction using conjugate symmetry and recalled echo |
05/23/1989 | US4833406 Temperature compensated Hall-effect sensor apparatus |
05/23/1989 | US4832037 Multi-region in-vivo magnetic resonance spectroscopy |
05/23/1989 | CA1254618A1 Magnetic resonance imaging apparatus including a bird- cage r.f. coil |
05/18/1989 | WO1989004494A1 Nmr imaging device, process for correcting non-uniformity and process for obtaining magnets used in said device |
05/18/1989 | WO1989004478A1 Magnetic field homogenization in nmr spectroscopy |
05/17/1989 | EP0316041A1 Method of and device for automatic phase correction of complex NMR spectra |
05/17/1989 | EP0315631A1 Phantom of nmr machine and method for measuring the characteristics of a magnetic field using such a phantom. |
05/17/1989 | CN1032987A Device for reading information from magnetic recording medium |
05/16/1989 | US4831330 Probe for magnetic resonance imaging system |
05/16/1989 | US4831329 Method and apparatus to correct for a phase error in central section magnetic resonance imaging data |
05/16/1989 | US4830012 High speed NMR imaging method and apparatus |
05/16/1989 | CA1254298A1 Method and apparatus for reading recorded data by a magnetoresistive head |
05/11/1989 | DE3737133A1 Homogeneous field magnet with profiled pole plates |
05/11/1989 | DE3736791A1 Interferometer having Josephson contacts made from monocrystalline oxidic superconductors |
05/10/1989 | EP0315382A2 Enhanced decoupling of MRI RF coil pairs during tuning of MRI RF transmit coil |
05/10/1989 | EP0315258A1 Device for reading information from a magnetic recording medium |
05/10/1989 | EP0314790A1 Method of correcting image distortion for nmr imaging apparatus |
05/10/1989 | CN1032867A Mageneto-sensitive type measuring instrument for intensive mageneto-leakage of ac field |
05/09/1989 | US4829277 Ring comprising segments |
05/09/1989 | US4829252 MRI system with open access to patient image volume |
05/09/1989 | US4829251 Electromagnetic probe for measuring the thickness of thin coatings on magnetic substrates |
05/09/1989 | US4829249 Method of inspecting magnetic disks for surface defects |
05/09/1989 | US4827945 Magnetic resonance imaging |
05/09/1989 | US4827931 Surgical catheters with suturing device and NMR opaque material |
05/09/1989 | US4827761 Sample holder |
05/09/1989 | CA1253917A1 Method and device for determining an nmr distribution in a region of a body |
05/09/1989 | CA1253916A1 Nuclear magnetic resonance apparatus |
05/09/1989 | CA1253799A1 Nmr contrast agents |
05/05/1989 | WO1989004049A1 Magnet assembly |
05/05/1989 | WO1989003693A1 Method of using fluorocarbons in nuclear magnetic resonance imaging |
05/03/1989 | EP0314359A2 MRI RF coil holder for imaging temporomandibular joint |
05/03/1989 | EP0314262A2 MRI system with open access to patient image volume |
05/03/1989 | CN1032706A Induction type ammeter with measuring head |
05/03/1989 | CN1004106B High precision magnetic determining device |
05/02/1989 | US4827235 Magnetic field generator useful for a magnetic resonance imaging instrument |
05/02/1989 | US4827219 Remotely adjustable MRI RF coil impedance matching circuit with mutualy coupled resonators |
05/02/1989 | US4827218 Linear magnetoresistance-effect sensor with semiconductor and ferrimagnetic layers and its application in a magnetic-domain detector |
05/02/1989 | US4827217 Low noise cryogenic apparatus for making magnetic measurements |
05/02/1989 | US4827214 Method for measuring losses of a magnetic core |
04/27/1989 | DE3733836A1 Magnetic field probe for measuring the magnetic field strength by using the Hall effect |
04/27/1989 | DE3732714A1 Biotelemetry receiver operating without a transmitter |
04/26/1989 | EP0313450A1 Superconducting magnetometer device |
04/26/1989 | EP0313435A1 Process and device for characterizing a sample of a crosslinked plastic material by its gel fraction during its continuous manufacture |
04/26/1989 | EP0313213A2 Magnetic gradient coil set for nuclear magnetic resonance system having substantially different coil-patient spacings |
04/26/1989 | EP0313132A2 Device for multichannel measuring of weak magnetic fields |
04/26/1989 | EP0312896A2 Hydraulically actuated cryogenic leads |
04/26/1989 | EP0312605A1 Detector for force, acceleration and magnetism using resistor element |
04/26/1989 | EP0312596A1 Image diagnosing apparatus |
04/26/1989 | EP0312586A1 Spurious resonance control for nmr observe coils. |
04/26/1989 | EP0312570A1 Apparatus and method for making biomagnetic measurements |
04/25/1989 | US4825166 Nonmagnetic alloy welded to magnetic permalloy; magnetic strip wrapped around bobbin |
04/25/1989 | US4825164 Surface resonator for nuclear magnetic resonance equipment |
04/25/1989 | US4825163 Quadrature probe for nuclear magnetic resonance |
04/25/1989 | US4825162 Nuclear magnetic resonance (NMR) imaging with multiple surface coils |
04/25/1989 | US4825161 Noise reduction in magnetic resonance images |
04/25/1989 | US4825160 Method and device for MR tomography |
04/25/1989 | US4825159 Method for operating a nuclear magnetic resonance tomography apparatus |
04/25/1989 | US4825152 Transient field indicator |
04/25/1989 | CA1253201A1 Magnetic structure for nmr applications and the like |
04/20/1989 | WO1989003535A1 Magnetometer |
04/20/1989 | DE3832973A1 Verfahren zum hervorheben von schwachen kontrasten in graphischen abbildungen Method for highlighting weak contrasts in graphical illustrations |