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    Vertical magnetization type recording medium and manufacturing method therefor
    1.
    发明授权
    Vertical magnetization type recording medium and manufacturing method therefor 失效
    垂直磁化型记录介质及其制造方法

    公开(公告)号：US4717592A

    公开(公告)日：1988-01-05

    申请号：US809828

    申请日：1985-12-17

    申请人： Makoto Nagao ,  Fusao Yamanaka ,  Kunihiko Sano ,  Akira Nahara

    发明人： Makoto Nagao ,  Fusao Yamanaka ,  Kunihiko Sano ,  Akira Nahara

    IPC分类号： G11B5/66 ,  G11B5/85 ,  B05D5/00 ,  B05D5/12

    CPC分类号： G11B5/66 ,  G11B5/85 ,  Y10S428/90 ,  Y10S428/928

    摘要： In forming a vertical magnetization type recording medium, a first soft magnetic film layer is formed on each side of a film-shaped support by vacuum deposition or sputtering at a temperature of 30.degree. C. or lower, a second soft magnetic film layer is formed on each of the first soft magnetic film layers, and a vertical magnetization film layer essentially containing Co-Cr is formed on each of the second soft magnetic film layers. The thickness of the first soft magnetic film layer on one side of the support may be made different from that of the first soft magnetic film layer on the other side so that curling of the recording medium is substantially eliminated.

    摘要翻译： 在形成垂直磁化型记录介质时，在30℃或更低的温度下通过真空沉积或溅射在薄膜状载体的每一侧上形成第一软磁膜层，形成第二软磁膜层 并且在每个第二软磁性膜层上形成基本上含有Co-Cr的垂直磁化膜层。 支撑体一侧上的第一软磁性膜层的厚度可以与另一侧的第一软磁性膜层的厚度不同，从而基本上消除了记录介质的卷曲。

    Method of manufacturing vertical magnetization type recording medium
    5.
    发明授权
    Method of manufacturing vertical magnetization type recording medium 失效
    制造垂直磁化型记录介质的方法

    公开(公告)号：US4865878A

    公开(公告)日：1989-09-12

    申请号：US203840

    申请日：1988-06-07

    申请人： Makoto Nagao ,  Fusao Yamanaka ,  Akira Nahara

    发明人： Makoto Nagao ,  Fusao Yamanaka ,  Akira Nahara

    IPC分类号： G11B5/66 ,  G11B5/851

    CPC分类号： G11B5/851 ,  G11B5/66 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/12569 ,  Y10T428/12937 ,  Y10T428/265 ,  Y10T428/269

    摘要： In a method of manufacturing a vertical magnetization type recording medium, a soft magnetic film layer is formed on each of the two sides of a non-magnetic support, and then a vertical magnetization film layer is formed on each soft magnetic film layer thus formed, thereby to provide a vertical magnetization type recording medium which has both sides uniform in characteristics and has characteristics making it excellent as a vertical magnetization type recording medium.This is a division of application Ser. No. 59,242 filed 6/10/87, which is a continuation of application Ser. No. 802,150 filed 11/27/85 both are now abandoned.

    摘要翻译： 在制造垂直磁化型记录介质的方法中，在非磁性载体的两侧形成软磁性膜层，然后在如此形成的各个软磁性膜层上形成垂直磁化膜层， 从而提供一种垂直磁化型记录介质，其具有两个特性均匀的特性，并且具有优异的垂直磁化型记录介质。 这是一个应用程序系列 第59,242号，申请日为6/10/87，是申请序号的延续。 2000年11月27日提交的第802,150号现在都被放弃。

    Apparatus for producing magnetic recording medium
    6.
    发明授权
    Apparatus for producing magnetic recording medium 失效
    磁记录介质的制造装置

    公开(公告)号：US4867101A

    公开(公告)日：1989-09-19

    申请号：US71941

    申请日：1987-07-10

    申请人： Fusao Yamanaka ,  Makoto Nagao ,  Akira Nahara

    发明人： Fusao Yamanaka ,  Makoto Nagao ,  Akira Nahara

    IPC分类号： C23C14/56 ,  G11B5/85 ,  G11B5/851

    CPC分类号： C23C14/564 ,  G11B5/85 ,  G11B5/851 ,  Y10S15/13

    摘要： Contaminant magnetic dust particles and flakes generated during the thin film coating of a substrate 9 in a vacuum chamber 1 are gravitationally collected in catch pans or troughs 8 disposed below the deposition zones. Magnets 10 are provided under the bottoms of the pans to enhance the attraction and retention of the particles. The contaminants may alternatively or additionally be removed directly from an upper surface of the substrate web by sandwiching one or more of its horizontal conveyance runs between a pair of magnets 22, 23, with the pole face area of the lower magnet being larger than that of the upper one.

    摘要翻译： 在真空室1中的基板9的薄膜涂覆期间产生的污染性磁粉尘颗粒和薄片被重力收集在设置在沉积区下方的卡盘或槽8中。 磁盘10设置在平底锅的底部以增强颗粒的吸引和保留。 可以通过将一个或多个水平输送路径夹在一对磁体22,23之间，从而可以直接从基板的上表面去除污染物，其中下磁体的极面区域大于 上一个。

    Recording and reproducing method by a change in composition on a solid surface
    8.
    发明授权
    Recording and reproducing method by a change in composition on a solid surface 失效
    通过在固体表面上的组成变化来记录和再现方法

    公开(公告)号：US4748592A

    公开(公告)日：1988-05-31

    申请号：US842719

    申请日：1986-03-20

    申请人： Makoto Nagao ,  Akira Nahara ,  Goro Akashi

    发明人： Makoto Nagao ,  Akira Nahara ,  Goro Akashi

    IPC分类号： G11B9/00 ,  G11B9/10 ,  G11C13/04

    CPC分类号： G11B9/10

    摘要： In a vacuum, recording is conducted by exposing a solid surface to a neutral particle beam or an ion beam modulated with a recording signal and converged, thereby to locally develop a change in composition on the solid surface. Then, reproducing is conducted by exposing said solid surface to an electron beam, an ion beam or a neutral particle beam which has been converged, thereby to emit electrons from the solid surface, and detecting the emitted electrons to read out the change in composition. If necessary, erasing is conducted by exposing the solid surface to the same beam as used in reproducing, thereby to eliminate the change in composition.

    摘要翻译： 在真空中，通过将固体表面暴露于中性粒子束或用记录信号调制的离子束并进行收敛来进行记录，从而局部地形成固体表面上的组成变化。 然后，通过将所述固体表面暴露于已经会聚的电子束，离子束或中性粒子束进行再现，从而从固体表面发射电子，并且检测发射的电子以读出组成的变化。 如果需要，通过将固体表面暴露于与再现中使用的相同的光束进行擦除，从而消除组成的变化。

    Magnetic recording medium
    9.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4511635A

    公开(公告)日：1985-04-16

    申请号：US537620

    申请日：1983-09-30

    申请人： Makoto Nagao ,  Akira Nahara

    发明人： Makoto Nagao ,  Akira Nahara

    IPC分类号： G11B5/66 ,  C08L67/02 ,  C22C19/07 ,  G11B5/64 ,  G11B5/65 ,  G11B5/73 ,  G11B5/85 ,  H01F10/16

    CPC分类号： G11B5/85 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/12535 ,  Y10T428/12771 ,  Y10T428/12931

    摘要： A magnetic recording medium comprises a non-magnetic high-molecular film and at least one magnetic layer containing Co, Ni, Cr and oxygen and formed on the non-magnetic high-molecular film by an oblique incidence vacuum deposition method. The Cr content is within the range of 2 to 8 atom %, the content of oxygen is within the range of 5 to 25 atom %, and the ratio of the number of oxygen atoms to the number of Cr atoms is within the range of 2:1 to 10:1.

    摘要翻译： 磁记录介质包括非磁性高分子膜和至少一个含有Co，Ni，Cr和氧的磁性层，并通过倾斜入射真空沉积法形成在非磁性高分子膜上。 Cr含量在2〜8原子％的范围内，氧的含量在5〜25原子％的范围内，氧原子数与Cr原子数的比例在2以下 ：1到10：1。

    Method of making a magnetic recording medium
    10.
    发明授权
    Method of making a magnetic recording medium 失效
    制造磁记录介质的方法

    公开(公告)号：US4451501A

    公开(公告)日：1984-05-29

    申请号：US368861

    申请日：1982-04-15

    申请人： Makoto Nagao ,  Akira Nahara ,  Goro Akashi

    发明人： Makoto Nagao ,  Akira Nahara ,  Goro Akashi

    IPC分类号： H01F41/20 ,  C23C14/24 ,  C23C14/56 ,  G11B5/85 ,  G11B5/851 ,  B05D3/06 ,  B05D5/12 ,  H01F10/02

    CPC分类号： C23C14/562 ,  C23C14/24 ,  G11B5/851

    摘要： A magnetic metal deposition material contained in a hearth is heated and evaporated in a vacuum to form a flow of vapor, which is then ionized and converged toward a predetermined deposition surface of a flexible substrate. The flexible substrate is moved obliquely downwardly along a convex course by sliding contact with the curved surface a fixed curved guiding body between a pair of guide rollers located at different heights above the hearth. The fixed curved guiding body communicates with a coolant source for cooling the substrate moving in contact therewith and may be provided with oscillators. Thus a thin film of the magnetic metal is deposited on the convex surface of the substrate.

    摘要翻译： 包含在炉床中的磁性金属沉积材料被加热并在真空中蒸发以形成蒸气流，然后将其蒸发并会聚到柔性基板的预定沉积表面。 柔性基板通过与位于炉床上方不同高度的一对导向辊之间的弯曲表面与固定弯曲导向体滑动接触而沿着凸面向斜下方移动。 固定的弯曲引导体与冷却剂源连通，用于冷却与其接触移动的衬底并且可以设置有振荡器。 因此，磁性金属的薄膜沉积在基板的凸面上。