| 摘要 |
PURPOSE:To attain the high efficiency for the reproducing state by using part of both a thin film inductive head and a sealed type MR head made individually in common and incorporating it without reducing the function of both the heads. CONSTITUTION:The MR element 5, yokes 2, 3 being two return paths leading magnetic flux to a face oppose to a medium through the upper and lower parts of the MR element 5 and coupled magnetically to the MR element 5 at the opposite side of the face opposed to the medium, and a coil 4 wound in spiral between the yokes 2, 3 are provided. The signal magnetic flux from the medium led by the yoke 7 passes through the MR element 5 at the reproduction and returns to the medium through the upper yoke 2 and the lower yoke 3. That is, the upper yoke 2 and the lower yoke 3 act like the return path of the signal magnetic field and the shield of the MR element 5. Since the MR element 5 detects the vertical magnetic field from the medium, high resolution is attained and since the return path is provided, a high efficiency is attained. |
