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Class Information
Number: 307/101
Name: Electrical transmission or interconnection systems > Residual or remanent magnetism control
Description: Subject matter relating to the control of residual or remnant magnetism.

Patents under this class:

Patent Number Title Of Patent Date Issued
8643218 Minimizing saturation caused by power transfer in a communication system transformer Feb. 4, 2014
8310106 Magnetizing inrush current suppression device and method for transformer Nov. 13, 2012
8008810 Phase-control switching apparatus and switching control method for phase-control switching apparatus Aug. 30, 2011
7919887 High repetitous pulse generation and energy recovery system Apr. 5, 2011
7898113 Pulse power supply device Mar. 1, 2011
7877170 Remanent voltage generator tachometer and control for induction machine Jan. 25, 2011
7719395 Magnetizer and magnetizing method May. 18, 2010
6497705 Method and apparatus for creating a virtual electrode used for the ablation of tissue Dec. 24, 2002
6262495 Circuit and method for eliminating surface currents on metals Jul. 17, 2001
5986355 Arrangement and method for reduction of magnetic fields and use thereof Nov. 16, 1999
5962978 Apparatus for automatically degaussing a color picture tube in response to a power conservation mode Oct. 5, 1999
5953196 Method and apparatus for an electromagnetic joystick lock with flux canceling driver circuit Sep. 14, 1999
5843567 Electrical component containing magnetic particles Dec. 1, 1998
5705861 Magnetic field pulse generator Jan. 6, 1998
5557493 Method of adjusting linearity Sep. 17, 1996
5198959 Demagnetizing device for magnetic recording media Mar. 30, 1993
5189590 Closed-loop multi-sensor control system and method Feb. 23, 1993
5089716 Simplified driver for controlled flux ferrite phase shifter Feb. 18, 1992
5085464 Air bag firing circuit Feb. 4, 1992
5016134 Driver circuit for single coil magnetic latching relay May. 14, 1991
4862014 Method and apparatus for controlling the phase of signal driving a ferrimagnetic load Aug. 29, 1989
4595022 Method for preventing remanence phenomena from interfering with magnetic field sensing systems and a device for implementation of the method Jun. 17, 1986
4445099 Digital gyromagnetic phase shifter Apr. 24, 1984
4426553 Vehicle loudspeaker arrangement with magnetic-field-sensitive device Jan. 17, 1984
4383535 Method for preventing remanence phenomena from interfering with magnetic field sensing systems and a device for implementation of the method May. 17, 1983
4382237 Temperature compensation of a flux drive gyromagnetic system May. 3, 1983
4047046 Circuit for setting magnetic remanence in a magnetizable core Sep. 6, 1977
4039853 Magnetizing device for permanent magnet motor for electric vehicle Aug. 2, 1977
3988686 Digitally controlled analog flux sensing ferrite phase shifter driver Oct. 26, 1976

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