发明名称 MAIN MAGNETIC POLE EXCITING TYPE VERTICAL MAGNETIC HEAD
摘要 PURPOSE:To improve the recording and reproducing sensitivity and to reduce the winding impedance while keeping a mechanical strength to form a vertical magnetic head superior in frequency characteristic by arranging a magnetic member (yoke part) only on one side of a main magnetic pole film. CONSTITUTION:Though a conventional vertical magnetic head has two yoke parts, a vertical magnetic head 20 has only a yoke part 22A0 on one side face of a main magnetic pole film 24. If the thickness of this yoke part 22A0 is equalized to the thickness of each yoke part of the conventional vertical magnetic head, the practical thickness of the yoke part in the magnetic head 20 is reduced to a half, and not only the sensitivity for magnetic recording and reproducing is improved but also the winding impedance is reduced while keeping the mechanical strength, and the magnetic head 20 is superior in frequency characteristic.
申请公布号 JPS61264503(A) 申请公布日期 1986.11.22
申请号 JP19850105548 申请日期 1985.05.17
申请人 OLYMPUS OPTICAL CO LTD 发明人 KOIKE MAKOTO;IMAMURA TATSUO;YAMAMOTO HIROYUKI;WATABE HIROYUKI;FUKUDA JIRO
分类号 G11B5/127;G11B5/17 主分类号 G11B5/127
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