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    Magnetic recording medium and method for producing the same
    4.
    发明公开
    Magnetic recording medium and method for producing the same 失效
    磁记录介质及其制造方法

    公开(公告)号：EP0198472A3

    公开(公告)日：1989-02-08

    申请号：EP86105179.5

    申请日：1986-04-15

    Applicant: Hitachi Maxell Ltd.

    Inventor： Niimi, Hideaki ,  Isoe, Noboru ,  Wakai, Kunio ,  Mizumura, Tetsuo

    IPC: G11B5/66

    CPC classification number: G11B5/66 ,  G11B5/72 ,  Y10S428/90 ,  Y10T428/265

    Abstract: A magnetic recording medium comprising a substrate and a ferromagnetic metal layer, wherein the ferromagnetic metal layer has a skin layer consisting of an amorphous cobalt compound, X-ray photoelectron spectra of which is characterized in that, in the C 02 p spectrum, a ratio of a peak height at 785.9±0.3 eV to that at 780.0±0.3 eV is 40/100 or less when a background (BG) line is drawn between lower energy side leading edge points of peaks at 780.0±0.3 eV - (2p 3/2 ) and 795.6±0.3 eV (2p 1/2 ) and, in the O 1s spectrum, a ratio of a peak height at 529.3±0.4 eV to that at 530.8±0.4 eV is from 100:110 to 100:50 when a background line is drawn between the lower energy side leading edge point and the higher energy side leading edge point of a complex peak at 530.5±2.5 eV from which the peaks at 529.3±0.4 eV and 530.8±0.4 are derived by peak synthesis, which has good corrosion and wear resistance.

    Magnetic recording medium
    7.
    发明公开
    Magnetic recording medium 失效
    MagnetischerAufzeichnungsträger。

    公开(公告)号：EP0274437A2

    公开(公告)日：1988-07-13

    申请号：EP88300103.4

    申请日：1988-01-07

    Applicant: Hitachi Maxell Ltd.

    Inventor： Isoe, Noboru ,  Mizumura, Tetsuo ,  Wakai, Kunio ,  Niimi, Hideaki

    IPC: G11B5/64 ,  G11B5/72

    CPC classification number: G11B5/64 ,  G11B5/722

    Abstract: A magnetic recording medium comprising a non-magnetic substrate, a ferromagnetic metal (12) laid on the non-magnetic substrate (4) and a protective film (13) laid on the ferromagnetic metal film (12), the ferromagnetic metal film (12) and the protective film (13) being composed of aggregates of columnar particles inclined to the normal line to the non-magnetic substrate (4) and the protective film (13) being free of highly inclined aggregates of columnar particles has improved corrosion resistance and wearing resistance.

    Abstract translation: 一种磁记录介质，包括非磁性衬底，放置在非磁性衬底（4）上的强磁性金属（12）和放置在强磁性金属膜（12）上的保护膜（13），强磁性金属膜 ），并且保护膜（13）由与非磁性基板（4）的法线相反的柱状颗粒的聚集体和没有高度倾斜的柱状颗粒的聚集体的保护膜（13）组成，具有改善的耐腐蚀性和 耐磨性

    Vacuum deposition apparatus and process for preparing magnetic recording medium
    9.
    发明公开
    Vacuum deposition apparatus and process for preparing magnetic recording medium 失效
    一种用于真空沉积和用于生产磁性记录载体的过程。

    公开(公告)号：EP0355766A2

    公开(公告)日：1990-02-28

    申请号：EP89115378.5

    申请日：1989-08-21

    Applicant: Hitachi Maxell Ltd.

    Inventor： Niimi, Hideaki ,  Mizumura, Tetsuo ,  Isoe, Noboru

    IPC: G11B5/85 ,  C23C14/30 ,  C23C14/56 ,  H01J37/317 ,  H01J37/06

    CPC classification number: C23C14/14 ,  C23C14/30 ,  G11B5/85 ,  H01J37/075 ,  H01J37/3053

    Abstract: The present invention provides an electron beam heating vacuum deposition apparatus in which the generating body (5) of said electron beam comprises at least 95 at % of tantalum and a process for preparing a magnetic recording medium comprising vapor-depositing a ferromagnetic metal onto a non-magnetic substrate (12) with an electron beam heating vapor deposition apparatus, in which process the generating body (5) of said electron beam comprises at least 95 at % of tantalum.

    Abstract translation: 本发明提供了对电子束加热的真空沉积装置，其中，所述生成体（5）的所述电子束包括钽％，至少95和用于制备磁性记录介质的方法，包括汽相淀积的强磁性金属到非 - 磁性基片（12），在电子束加热汽相淀积设备，在该方法中生成所述主体（5）。所述的电子束在钽％包含至少95。

    An arrangement for preventing entrance of harmful particles for use in a cartridge
    10.
    发明公开
    An arrangement for preventing entrance of harmful particles for use in a cartridge 失效
    Vorrichtung，um den Eintritt vonschädlichenTeilchen在eine Kassette zu verhindern。

    公开(公告)号：EP0311089A2

    公开(公告)日：1989-04-12

    申请号：EP88116620.1

    申请日：1988-10-07

    Applicant: Hitachi Maxell Ltd.

    Inventor： Mizutani, Hikaru ,  Wakai, Kunio ,  Fujiwara, Hideo ,  Niimi, Hideaki ,  Isoe, Noboru ,  Doi, Toshio

    IPC: G11B23/087 ,  G11B23/03

    CPC classification number: G11B23/0308 ,  G11B23/08735 ,  G11B23/08785

    Abstract: In a recording tape cartridge having a cartridge case, magnetic recording tape (2) and a front lid and a rear lid (11) for protecting the magnetic tape (2), there are provided en­trance preventing members (50) at a bottom the cartridge case facing to clearances between side edges of the rear lid (11) and case body for preventing entrance of floating harmful particles into the area near the recording tape so as to preventing corrosion of the recording tape by the floating harmful particles.

    Abstract translation: 在具有盒壳体，磁记录带（2）和用于保护磁带（2）的前盖和后盖（11）的记录带盒中，在底部设有入口防止构件（50） 面向后盖（11）的侧边缘和壳体之间的间隙的壳体，用于防止浮动有害颗粒进入记录带附近的区域，以防止由漂浮的有害颗粒引起的记录带的腐蚀。

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