发明名称 Magnetic head for magneto-optical recording, and magneto-optical recording apparatus.
摘要 <p>A magnetic head for magneto-optical recording includes a slider sliding on a magneto-optical recording medium, a core made of a magnetic material and mounted to the slider, and a coil wound around the core. The core has an area of main magnetic pole end face of from 0.01 mm&lt;2&gt; to 0.039 mm&lt;2&gt;. The magnetic material for the core is a Mn-Zn ferrite having a Curie temperature of not less than 140 DEG C, a permeability of not less than 200 at frequency 8 MHz at temperature 25 DEG C, and an effective saturation magnetic flux density of not less than 4400 G. A magneto-optical recording apparatus includes an optical head for irradiating a magneto-optical recording medium with a light spot, and a magnetic head for applying a magnetic field to the magneto-optical recording medium. The magnetic head includes a slider being sliding on the magneto-optical recording medium, a core made of a magnetic material and mounted to the slider, and a coil wound around the core. Upon application of a voltage to the coil a modulation magnetic field is applied to a recording surface of the magneto-optical recording medium to record an information signal with maximum frequency of not less than about 8 MHz. &lt;IMAGE&gt;</p>
申请公布号 EP0592219(A1) 申请公布日期 1994.04.13
申请号 EP19930307982 申请日期 1993.10.07
申请人 CANON KABUSHIKI KAISHA 发明人 ISHII, KAZUYOSHI;TACHIBANA, SHINICHI
分类号 G11B5/10;G11B11/105;G11B21/21;(IPC1-7):G11B5/60;G11B5/187;G11B5/105;G11B11/10 主分类号 G11B5/10
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