| 摘要 |
PURPOSE:To obtain a magnetic head suitable for reproduction of short-wavelength and long-wavelength recording and to reduce a contour effect by forming a magnetic recording medium facing surface of a bulky magnetic material with high magnetic permeability to sufficient length in a track direction. CONSTITUTION:In a groove 34 made in the surface of the bulky magnetic material 30 with high magnetic permeability, a high magnetic permeability material 36 is flattened with a nonmagnetic material 35 between while forming a surface nearly equal in level to the surface of said material 30, and on the surface of the material 30, a bulky magnetic material 30' with high magnetic permeability is arranged through a nonmagnetic film 31 for specifying a gap while coupling magnetically and tightly with the embedded magnetic material 36 with high magnetic permeability. A magnetic head of said structure has the magnetic recording medium facing surface formed of the bulky magnetic material with high magnetic permeability, so it is made sufficiently long in the track direction, so enough sensitivity for even long-wavelength recording is obtained. |
