Magnetic recording member
    1.
    发明授权
    Magnetic recording member 失效
    磁记录部件

    公开(公告)号:US5204192A

    公开(公告)日:1993-04-20

    申请号:US863680

    申请日:1992-04-01

    摘要: A member is prepared by forming a magnetic surface layer on a magnetic base member having a different composition from the surface layer. A laser beam is radiated onto the member so as to fuse the member and the surface layer, thereby forming a fused portion having magnetic properties. A modified portion is formed in a portion of the fused portion corresponding to the surface layer such that this portion has different permeability from other portions of the surface layer.

    摘要翻译: 通过在具有与表面层不同的组成的磁性基底构件上形成磁性表面层来制备构件。 将激光束照射到构件上,以使构件和表面层熔合,从而形成具有磁特性的熔融部分。 在对应于表面层的熔融部分的一部分中形成改性部分,使得该部分具有与表面层的其它部分不同的渗透性。

    Method of forming a magnetically modified portion
    2.
    发明授权
    Method of forming a magnetically modified portion 失效
    形成磁修饰部分的方法

    公开(公告)号:US5100692A

    公开(公告)日:1992-03-31

    申请号:US320621

    申请日:1989-03-08

    摘要: A member is prepared by forming a magnetic surface layer on a magnetic base member having a different composition from the surface layer. A laser beam is radiated onto the member so as to fuse the member and the surface layer, thereby forming a fused portion having magnetic properties. A modified portion is formed in a portion of the fused portion corresponding to the surface layer such that this portion has different permeability from other portions of the surface layer.

    摘要翻译: 通过在具有与表面层不同的组成的磁性基底构件上形成磁性表面层来制备构件。 将激光束照射到构件上,以使构件和表面层熔合,从而形成具有磁特性的熔融部分。 在对应于表面层的熔融部分的一部分中形成改性部分,使得该部分具有与表面层的其它部分不同的渗透性。