MAGNETIC RECORDING MEDIUM AND MANUFACTURE METHOD THEREFOR AND MAGNETIC RECORDING APPARATUS

摘要

TO PRODUCE A MAGNETIC RECORDING MEDIUM HAVING EXCELLENT ELECTROMAGNETIC CONVERSION CHARACTERISTICS SUCH AS REDUCED NOISE.THE PARTIAL PRESSURE OF H₂O IN AN AR ATMOSPHERE IS CONTROLLED DURING FILM FORMATION TO MAKE FINER CRYSTAL GRAINS (4a) CONSTITUTING A MAGNETIC LAYER (4) OF A MAGNETIC RECORDING MEDIUM (100), IN ORDER TO OBTAIN A UNIFORM GRAN SIZE.(FIG. 1)