Spinel video disc playback stylus
    2.
    发明授权
    Spinel video disc playback stylus 失效
    尖晶石视频光盘播放手写笔

    公开(公告)号:US4370739A

    公开(公告)日:1983-01-25

    申请号:US158062

    申请日:1980-06-09

    IPC分类号: G11B3/44 G11B9/07 G11B9/06

    CPC分类号: G11B9/075 G11B3/445

    摘要: An improved information storage and playback system comprising a playback stylus and a disc record. The information is recorded in the surface of the disc record and there is relative motion between the disc and the playback stylus during recovery of the recorded information. The stylus is fabricated out of a dielectric support material and contacts the record disc surface during the recovery of the information. The improvement comprises employing a playback stylus whose dielectric support material is single crystal magnesium aluminate spinel. The spinel composition comprises a ratio of MgO to Al.sub.2 O.sub.3 of from about 1:1 to about 1:2.5.

    摘要翻译: 一种改进的信息存储和播放系统,包括重放触笔和盘记录。 信息被记录在光盘记录的表面中,并且在恢复记录的信息期间在盘和回放笔之间存在相对运动。 触笔由电介质支撑材料制成,并在信息恢复期间与记录盘表面接触。 该改进包括采用其电介质支撑材料是单晶铝酸镁尖晶石的重放触笔。 尖晶石组合物包含MgO与Al 2 O 3的比例为约1:1至约1:2.5。

    Method of depositing an abrasive layer
    5.
    发明授权
    Method of depositing an abrasive layer 失效
    沉积研磨层的方法

    公开(公告)号:US4260647A

    公开(公告)日:1981-04-07

    申请号:US48161

    申请日:1979-06-13

    IPC分类号: C23C16/509 H01G4/14 B05D3/06

    CPC分类号: C23C16/5096 H01G4/145

    摘要: In a method for the glow discharge deposition of an amorphous, continuous layer from an organosilane and oxygen where the deposition is interrupted, wherein a glow discharge in oxygen is employed prior to resumption of glow discharge layer deposition.

    摘要翻译: 在用于辉光放电沉积来自有机硅烷和氧气的无定形连续层的方法中,其中沉积被中断,其中在恢复辉光放电层沉积之前采用氧气中的辉光放电。