US Patent 10204727 Systems and methods for producing magnetic structures

A system for magnetizing magnetic sources into a rare earth permanent magnet material includes a first inductor coil, a second inductor coil, and at least one magnetizing circuit for supplying a first current having a first direction for a first duration to said first inductor coil to produce a first magnetic field and a second current having a second direction for a second duration to said second inductor coil to produce a second magnetic field. The first inductor coil comprises a first plurality of layers of a flat conductor about a first aperture positioned on a first side of the rare earth permanent magnet material at a first location where a magnetic source is to be magnetized into the rare earth permanent magnet material from the first side of the rare earth permanent magnet material. The second inductor coil comprising a second plurality of layers of a flat conductor coiled about a second aperture positioned on a second side of the rare earth permanent magnet material at a second location where a magnetic source is to be magnetized into the rare earth permanent magnet material from the second side of said rare earth permanent magnet material, where the second side is opposite the first side.