Patent ID: 8730616
Filing Date: 2014-05-20
Classification: G11B

Abstract:
1. A magnetic recording head comprising: a main pole configured to apply a recording magnetic field to a recording layer of a recording medium; a trailing shield opposing the main pole with a write gap therebetween; and a high-frequency oscillator between a distal end portion of the main pole and the trailing shield, configured to produce a high-frequency magnetic field, the high-frequency oscillator comprising a lower end surface facing the recording medium, an upper end surface substantially parallel to the lower end surface, and opposite side surfaces extending from the lower end surface to the upper end surface, the width of the lower end surface in a track-width direction being smaller than that of the upper end surface, wherein the opposite side surfaces of the high-frequency oscillator extend spreading at an angle of 10 to 30° to the lower end surface.