发明名称 Permanent magnet type erasing head
摘要 A permanent magnet type demagnetizing head is made by successively molding a resin-magnet which forms a body having a magnetic member forming a part of a tape contact surface and a resin which forms protection member forming a remainder part of the tape contact surface, and therefore a manufacturing process is simplified, and further quality of the demagnetizing head is improved, since size precision is enhanced.
申请公布号 US4965688(A) 申请公布日期 1990.10.23
申请号 US19900498478 申请日期 1990.03.23
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 YOSHINO, TUYOSHI
分类号 G11B5/325 主分类号 G11B5/325
代理机构 代理人
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