Patent ID: 6624972
Filing Date: 2003-09-23
Classification: G11B

Abstract:
A magnetic head comprising:a pair of magnetic poles disposed to be adjacent to or in contact with a moving recording medium, said pair of magnetic poles being placed adjacent one another with a predetermined interval at an adjacent point or a contact point with respect to the recording medium, in which a magnetic field is generated between the magnetic poles so that the recording medium is magnetized as it moves, a pair of sub-magnetic poles disposed between said pair of magnetic poles; and a pair of non-magnetic films disposed between said pair of sub-magnetic poles, a soft magnetic film extending between said pair of non-magnetic films, and wherein said soft magnetic film has a saturation magnetic flux density not more than a saturation magnetic flux density of one of said pair of magnetic poles located at said lower stream side with respect to a moving direction of said recording medium and also has a saturation magnetic flux density not less than a saturation magnetic flux density of another one of said pair of magnetic poles located at an upper stream side with respect to said moving direction of said recording medium.