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    • 36. 发明授权
    • Magnetic head with medium sliding surface having varied curvature and recording/reproducing apparatus
    • 具有中等滑动面的磁头具有不同的曲率和记录/重放装置
    • US06989961B2
    • 2006-01-24
    • US10601169
    • 2003-06-20
    • Kazuhiko MatsuiAkihiro SatoKyoichi Kawase
    • Kazuhiko MatsuiAkihiro SatoKyoichi Kawase
    • G11B5/187
    • G11B5/1878G11B5/0086
    • A magnetic head includes core blocks having a medium sliding surface formed on one surface of the core blocks, the medium sliding surface having a slender convex curved shape formed along a sliding direction of a recording medium from the upstream side of the sliding direction to the downstream side, and the medium sliding surface having a magnetic gap formed thereon, wherein the medium sliding surface is shaped along a longitudinal direction thereof like a circular arc with a radius of curvature R while being shaped along a width direction like a circular arc with a radius of curvature r, which is smaller than the radius of curvature R, so that the radius of curvature r is continuously reduced with closer distance to the downstream end of the recording medium sliding direction from a vicinity of the magnetic gap, so that by employing the above magnetic head, a long life magnetic head with small damage due to foreign material adhesion as well as small abrasion can be provided.
    • 磁头包括具有形成在芯块的一个表面上的介质滑动表面的芯块,介质滑动表面具有从滑动方向的上游侧到下游的沿着记录介质的滑动方向形成的细长的凸形弯曲形状 并且介质滑动面具有形成在其上的磁隙,其中介质滑动表面沿着其纵向方向成像为具有曲率半径R的圆弧,同时沿着具有半径的圆弧的宽度方向成形 的曲率半径r比曲率半径R短,从而使距离磁记录介质滑动方向的下游端更靠近距离的曲率半径r连续地减小,从而通过采用 磁头以上,可以提供由于异物附着而造成的损伤小且磨损小的长寿命磁头。