Tape drive head with lower core layer side inclined at angle equal to or greater than azimuth angle and aligned with upper core layer edge

A magnetic tape drive including means for running a magnetic tape and a recording head for recording signals on the magnetic tape driven by said means for running the magnetic tape while making sliding contact therewith, wherein said recording head is an inductive thin film magnetic head, in which:

• at least a lower magnetic core layer, a nonmagnetic layer and an upper magnetic core layer are laminated on a substrate;
• each of said lower magnetic core layer and said upper magnetic core layer has a protrusion on one end portion thereof on a side of a medium sliding contact plane to make a sliding contact with said magnetic tape, which protrudes with a predetermined track width corresponding to a recording track to be formed on said magnetic tape;
• a magnetic gap is formed by disposing each of said protrusions adjacent to each other via said nonmagnetic layer in a direction of lamination;
• said lower magnetic core layer and said upper magnetic core layer are connected at the other ends thereof remote from said medium sliding contact plane in a direction of depth therefrom;
• and a thin film coil is wound around said other ends thereof connected, wherein:
• said thin film magnetic head comprises:
• said magnetic gap which is disposed slantingly on said medium facing plane relative to a direction orthogonal to a scanning direction of said head corresponding to an azimuth angle;
• said upper magnetic core layer which is disposed on a leading side in the scanning direction of said head preceding said lower magnetic core layer;
• said protrusion on said lower magnetic core layer which has an inclined side surface inclined at an angle equal to or greater than said azimuth angle at least on one side thereof in a direction of a track width;
• and
• said protrusion on said upper magnetic core layer which has at least one edge of a side thereof adjacent to said magnetic gap being aligned on a line drawn extending from said inclined side surface of said protrusion on said lower magnetic core layer.