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    Improved reproducing stylus and method of making same
    1.
    发明公开
    Improved reproducing stylus and method of making same 失效
    手写笔和方法及其生产。

    公开(公告)号：EP0087020A1

    公开(公告)日：1983-08-31

    申请号：EP83100979.0

    申请日：1983-02-02

    申请人： NAMIKI PRECISION JEWEL CO., LTD.

    发明人： Shimamoto, Hiroshi

    IPC分类号： G11B3/46 ,  G11B3/56 ,  B24B9/16

    CPC分类号： G11B3/56 ,  B24B19/165 ,  G11B3/46 ,  Y10S76/12

    摘要： A reproducing stylus for a record having a sound groove, said stylus formed by removing front and back portions of its contact area with the sound groove to obtain an edge line portion having an orientation perpendicular to the direction of record travel and the said edge portion is rounded at the corners thereof such that a very small radius of stylus curvature is formed at the tip. The edge line portion is formed by reciprocally moving and grinding the tip on a grinding groove.