| 摘要 |
PURPOSE:To obtain a miniature vertical magnetic recording head having the high efficiency, by enclosing a material of high magnetic permeability that leads the manetic flux generated at a coil to a recording medium with a diamagnetic material and reducing the sectional area of the material having high magnetic permeability as it approaches to the recording medium. CONSTITUTION:A magnetic core 5 made of a conductive matter is made to conduct to generate the magnetic flux. This magnetic flux is converted to a magnetic recording medium 3 by a magnetic core 6 whose sectional area is reduced toward the medium 3. Then a diamagnetic matter 7 encloses the core 6 so that the tip 6a of the core 6 protrudes slightly out of the matter 7, and as a result the magnetic flux passing through the core 6 is prevented from leaking out at the areas excepting the tip part. Thus a magnetic head is obtained. In such way, a miniature vertical magnetic recording head which has the high efficiency with a simple mechanism is produced regardless of the thickness of the medium 3. |
