A magnetic field applicator to heat magnetic substances in biological tissue, having a magnetic yoke with two pole shoes across from each other and separated from each other by a distance that defines the magnetic field exposure volume produced by the applicator, and with two magnetic coils, one assigned...http://www.google.de/patents/US20010012912?utm_source=gb-gplus-sharePatent US20010012912 - Magnetic field applicator for heating magnetic substances in biological tissue