| Patents for H01F 7 - Magnets (20,067) |
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| 02/05/1991 | US4990879 Magnetic block with adjustable magnetization for producing a permanent magnetic field in a zone of interest |
| 02/01/1991 | WO1991001622A2 High efficiency, flux-path-switching, electromagnetic actuator |
| 02/01/1991 | CA2059530A1 High efficiency, flux-path-switching, electromagnetic actuator |
| 01/30/1991 | EP0409996A1 Electromagnetic valve actuating system |
| 01/30/1991 | CN2070494U All-closed explosion insulated water-proof electromagnet |
| 01/29/1991 | US4988966 Electromagnet, particularly for actuating the switches of a contact maker apparatus |
| 01/29/1991 | US4988907 Independent redundant force motor |
| 01/29/1991 | CA1279695C Electrical coils |
| 01/23/1991 | EP0409664A2 Pressure regulators and valve actuators therefor |
| 01/23/1991 | EP0409577A1 Solenoid controlling apparatus |
| 01/23/1991 | EP0409576A1 Current controlling apparatus |
| 01/23/1991 | EP0408963A2 Method for controlling the armature movement of switching magnets |
| 01/23/1991 | EP0408776A1 Lifting magnet |
| 01/22/1991 | US4987508 Permanent magnet shaped to provide uniform biasing of a magnetoresistive reproduce head |
| 01/22/1991 | US4987398 Multilayered eddy current type power-saved intense AC magnetic field generator |
| 01/22/1991 | US4986078 Refrigerated MR magnet support system |
| 01/22/1991 | CA2021370A1 Ultra precision pressure regulator |
| 01/22/1991 | CA1279347C Magnetic plate having permanent magnets and on-off switching means |
| 01/16/1991 | EP0407384A1 Magnet assembly. |
| 01/15/1991 | US4985794 Rotary drum device having a head drive with positively bonded bobbin fixing members |
| 01/15/1991 | US4985679 Magnet assembly |
| 01/15/1991 | US4985652 Single-phased angular electromagnetic actuator |
| 01/15/1991 | US4985638 Valve control circuit for irrigation system |
| 01/15/1991 | US4984549 Electromagnetic injection valve |
| 01/15/1991 | US4984541 Valve stepping drive apparatus |
| 01/10/1991 | WO1991000641A1 Compact bi-directional torque motor |
| 01/09/1991 | EP0407227A2 Magnetic field generating device for MRI |
| 01/09/1991 | EP0406957A2 Hammer solenoid |
| 01/09/1991 | EP0406782A1 Electromagnetic holding device |
| 01/09/1991 | EP0406781A2 Magasin for coordinate measuring machine |
| 01/09/1991 | EP0406583A1 System for manufacturing permanent magnets generating magnetic fields, and relevant elementary or composite permanent magnets |
| 01/09/1991 | EP0406444A1 Electromagnetic valve actuator |
| 01/09/1991 | EP0406443A1 Electromagnetic valve actuator |
| 01/08/1991 | US4983942 Apparatus for locating passive shim guide rails in MR magnets |
| 01/08/1991 | US4983941 Electromagnetically operated switch |
| 01/08/1991 | US4983922 Magnetic shim for magnetic field correction |
| 01/08/1991 | US4983859 Magnetic device for high-voltage pulse generating apparatuses |
| 01/06/1991 | CA2020211A1 Hammer solenoid |
| 01/04/1991 | CA2020329A1 System for manufacturing permanent magnets generating magnetic fields and relevant elementary composite permanent magnets |
| 01/02/1991 | EP0405191A1 Electromagnetic positioning device |
| 01/02/1991 | EP0405189A1 Electromagnetic positioning device |
| 01/02/1991 | EP0404855A1 Controlled linear motor |
| 01/02/1991 | CN2068719U Safety energy-saving electromagnet |
| 01/01/1991 | US4982121 Expulsive separation apparatus |
| 12/27/1990 | WO1990016018A1 Developing apparatus |
| 12/27/1990 | WO1990016017A1 Developing apparatus |
| 12/27/1990 | EP0404461A1 Gradient coil assemblies for generating magnetic field gradients across a region |
| 12/27/1990 | EP0404336A1 Solenoid-actuated valve assembly |
| 12/27/1990 | EP0404330A1 Solenoid-actuated valve assembly |
| 12/27/1990 | EP0403796A1 Electric driving tool |
| 12/27/1990 | EP0238509B1 Solenoid driver control unit |
| 12/27/1990 | EP0120927B1 Nmr imaging apparatus |
| 12/26/1990 | CN2068272U High-attraction large-travel liquid magnetic pulling electromagnet |
| 12/26/1990 | CN2068271U Compound permanent magnet |
| 12/25/1990 | US4980801 Protection module for a contact-maker electromagnet |
| 12/21/1990 | CA2012856A1 Compact bi-directional torque motor |
| 12/20/1990 | DE4003606A1 Electromagnetically operated valve for vehicle braking system - has armature located in tube of magnetic and non-magnetic layers |
| 12/20/1990 | DE3919617A1 Servo valve - with temp. compensation for permanent magnet actuator and hydraulic intensifier |
| 12/20/1990 | DE3919509A1 Proportional electromagnetic activator - has linear motion combined with limited rotation of armature |
| 12/19/1990 | EP0403216A2 Electromagnetic actuator arrangement |
| 12/19/1990 | EP0402548A1 Magnetic field generating device for ESR system |
| 12/19/1990 | EP0402359A1 Circuit arrangement for cyclic supply. |
| 12/18/1990 | US4978920 Magnetic field screens |
| 12/18/1990 | US4978074 Solenoid actuated valve assembly |
| 12/14/1990 | CA2018965A1 Electromagnetic actuator arrangement |
| 12/13/1990 | DE4017260A1 Mfg. gradient coil arrangement for MRI - achieving high coil position accuracy using removable formers, adhesive and setting resin |
| 12/12/1990 | EP0401390A1 Electromagnetic valve actuator |
| 12/12/1990 | CN1010818B Radiative orientation nd-fe-b permanent-magnet ring and its making method |
| 12/11/1990 | US4977384 Micropole undulator |
| 12/05/1990 | EP0401067A1 Excitation device for electromagnetic actuator |
| 12/05/1990 | EP0401066A1 Permanent magnet helical wiggler for free-electron lasers |
| 12/05/1990 | EP0400389A2 Solenoid closure detection |
| 12/05/1990 | CN2067026U Rapid electromagnetic system |
| 12/04/1990 | US4975668 Electromagnetic focusing |
| 12/04/1990 | US4974918 Device with oscillating mirrors for deviating electromagnetic beams |
| 12/04/1990 | CA1277377C Ferrimagnetic resonator device |
| 11/28/1990 | EP0070873B1 Driver circuit for use with inductive loads or the like |
| 11/27/1990 | US4972996 Dual lift electromagnetic fuel injector |
| 11/27/1990 | US4972810 Electromagnetic force valve driving apparatus |
| 11/27/1990 | CA1276979C Magnetic field coils |
| 11/22/1990 | EP0398567A2 Method of operating AC magnetic devices with high efficiency at high frequency |
| 11/20/1990 | WO1990014716A1 Method and apparatus for controlling the operation of a solenoid |
| 11/20/1990 | US4972284 Deposited permanent magnet for hard and easy axes biasing of a magnetoresistive head |
| 11/20/1990 | US4971278 Pony shoe refrigerator magnet |
| 11/20/1990 | US4971116 Pressure control valve |
| 11/20/1990 | CA1276697C Ferromagnetic resonator having temperature compensation means using pre-coded compensation data |
| 11/20/1990 | CA1276679C Control of the energization of an electromagnet |
| 11/14/1990 | EP0396880A1 NdFeB magnet and surface passivation process of NdFeB magnets |
| 11/13/1990 | US4970622 Method and apparatus for controlling the operation of an electromagnet |
| 11/13/1990 | US4970476 Electric noise absorber using a granular or liquid magnetic substance |
| 11/08/1990 | DE4011153A1 Elektromagnetische steuervorrichtung in fotografischen geraeten Electromagnetic control device in photographic equipment |
| 11/07/1990 | EP0396235A2 Method for producing permanent magnet alloy particles for use in producing bonded permanent magnets |
| 11/06/1990 | US4968915 Cyclotron |
| 11/06/1990 | US4968909 Compact bi-directional torque motor |
| 11/06/1990 | US4968529 Process for producing a corrosion resistant permanent magnet |
| 11/06/1990 | US4967996 Pilot type controlled electromagnetic valve system |
| 11/06/1990 | US4967966 Electromagnetically actuatable valve |
| 11/05/1990 | CA2014191A1 Method for producing permanent/magnet alloy particles for use in producing bonded permanent magnets |
| 11/01/1990 | WO1990009095A3 Magnetic field transfer device and method |
| 10/31/1990 | EP0394782A2 Etched z-axis gradient coils for NMR System |