PURPOSE: To provide a magnetic field generator for magnetooptical recording, etc., suitable for high frequency driving and capable of dealing with a multi- beam recording, by making coils and magnetic yokes into the specific constitution by application of a thin film molding technology and enabling plural magnetic field generating parts to be obtained with lesser mutual interference.
CONSTITUTION: Plural magnetic field generating elements are formed on the surface of nonmagnetic substrate 1 confronted with a recording medium in parallel, by the thin film technology. Each magnetic field generating element is furnished with independent thin film coils 17, 19, magnetic yokes 24, 25 and magnetic poles P3, P5 respectively. Each magnetic pole P3, P5 is formed so as projecting to the upper part of substrate surface from one end of corresponding magnetic yokes 17, 19. The each magnetic poles of respective magnetic field generating elements are arranged so as to be mutually adjacent.
MATSUDA TORU
HASEGAWA MITSUHIRO
