Patent ID: 6480355
Filing Date: 2002-11-12
Classification: G11B

Abstract:
A thin-film magnetic head including a recording head element, said element comprising:a lower magnetic pole; a recording gap; and an upper magnetic pole facing to said lower magnetic pole through said recording gap, said upper magnetic pole having a first width which is constant in a region from a first edge of said upper magnetic pole at the side of said recording gap to a point at a predetermined distance from said first edge, and having a second width at a second edge of said upper magnetic pole at the opposite side of said recording gap, said second width being larger than said first width, wherein said first width of the upper magnetic pole is continuously varied from said point to said second edge, wherein an edge of said lower magnetic pole at the side of said recording gap has a protruded part facing to said upper magnetic pole, and wherein said protruded part has a width which is equal to the first width at said first edge of said upper magnetic pole.