| 摘要 |
PURPOSE:To improve the reproduced output in a high-frequency region and to decrease tape hiss noise with the magnetic head for VTRs, etc. CONSTITUTION:The single crystal ferrite which is low in magnetic permeability in the high-frequency region and is added and solid solution treated with In 203 is subjected to a heat treatment, by which the magnetic permeability in the high-frequency region is improved. The magnetic head is formed by using this material, by which the reproduced output in the high-frequency region is improved and the tape hiss noise is decreased. |
