Patent ID: 9076463
Filing Date: 2015-07-07
Classification: G11B

Abstract:
1. A magnetic head comprising: a main pole configured to apply a recording magnetic field to a recording layer included in a recording medium; a trailing shield opposing the main pole in a down-track direction, with a write gap interposed therebetween; a pair of side shields opposing the main pole on opposite sides of the main pole in a cross-track direction, with respective gaps interposed therebetween; a recording coil configured to cause the main pole to generate a magnetic field; a first high-frequency oscillator provided between the main pole and one of the side shields and electrically connected to the main pole and the one side shield, the main pole, the first high-frequency oscillator and the one side shield constituting a power distribution circuit configured to distribute power to the main pole, the first high-frequency oscillator and the one side shield in this order; and a second high-frequency oscillator provided between the main pole and the other side shield and electrically connected to the main pole and the other side shield, the main pole, the second high-frequency oscillator and the other side shield constituting a power distribution circuit configured to distribute power to the main pole, the second high-frequency oscillator and the other side shield in this order.