A magnetic thin-film head with layer-wise buildup on a nonmagnetic substrate is provided for a recording medium which can be magnetized perpendicularly (vertically), and contains a conduction body which carries the magnetic flux, and the magnet legs of which form a main and an auxiliary pole. With these...http://www.google.fr/patents/US4740855?utm_source=gb-gplus-shareBrevet US4740855 - Magnetic thin-film head having a main and an auxiliary pole for vertical magnetization
Magnetic thin-film head having a main and an auxiliary pole for vertical ...
