| 摘要 |
PURPOSE:To obtain a magnetic recording and reproducing device which is small-sized and light, is excellent in recording sensitivity and is capable of high density recording by placing a main magnetic pole and an auxiliary magnetic pole on the side of a recording layer of a recording medium, so that the main magnetic pole is energized by the auxiliary magnetic pole through a high magnetic permeability magnetic layer. CONSTITUTION:A main magnetic pole 1 and an auxiliary magnetic pole 2 are placed on the side of a magnetic recording layer 21 of a recording medium 20. The recording medium 20 is constituted of a magnetic recording layer 21 having a vertical anisotropy, a high magnetic permeability magnetic layer 22 of ''Permalloy'', etc. having a horizontal anisotropy, and a substrate 23, and the magnetic recording layer 21 is formed on the high magnetic permeability magnetic layer 22 by means of sputtering, etc, and is constituted and places to that the magnetic recording layer is not formed on one part of the recording medium, the high magnetic permeability magnetic layer 22 is exposed, and the auxiliary magnetic pole 2 is made to contact directly to the high magnetic permeability magnetic layer 22 or is made adjacent to the latter. Accordingly, a recording signal converted to a magnetic flux by an energizing winding 3 wound round the auxiliary magnetic pole 2 is absorbed to the main magnetic pole 1 through the high magnetic permeability magnetic layer 22 and the magnetic recording layer 21, and in that case, recording is executed magnetically to the magnetic recording layer 21. |
