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    Magnetic recording medium, its production method and magnetic storage device using the medium
    1.
    发明授权
    Magnetic recording medium, its production method and magnetic storage device using the medium 失效
    磁记录介质，其制作方法和使用介质的磁存储装置

    公开(公告)号：US06706363B2

    公开(公告)日：2004-03-16

    申请号：US09928421

    申请日：2001-08-14

    申请人： Yoshinori Honda ,  Yuuichi Kokaku ,  Toshinori Ono ,  Shigehiko Fujimaki ,  Hiroyuki Kataoka

    发明人： Yoshinori Honda ,  Yuuichi Kokaku ,  Toshinori Ono ,  Shigehiko Fujimaki ,  Hiroyuki Kataoka

    IPC分类号： D06N704

    CPC分类号： G11B5/72 ,  G11B5/74 ,  G11B5/82 ,  Y10T428/30

    摘要： A magnetic recording medium is provided in which film thickness of the DLC layer is 5 nm or less. A tangential force of the magnetic head is small. The magnetic recording medium has excellent durability to sliding property. A magnetic storage device can be realized that is capable of stable floating of the magnetic head at 10 nm or less. The magnetic recording medium has a primary coat layer, a magnetic layer, and an overcoat layer on a substrate, wherein the overcoat layer is composed of a DLC film, and in an area in which depth from the surface of the DLC film is 13 Å or less, there is formed a CN bond.

    摘要翻译： 提供了DLC层的膜厚为5nm以下的磁记录介质。 磁头的切向力很小。 磁记录介质对滑动性能具有优异的耐久性。 可以实现能够将磁头稳定浮动在10nm以下的磁存储装置。 磁记录介质在基板上具有初级涂层，磁性层和外涂层，其中外涂层由DLC膜构成，并且在DLC膜的表面深度为13的区域中， 或更少，形成CN键。

    Magnetic recording medium, the manufacturing method and magnetic recording apparatus using the same
    2.
    发明申请
    Magnetic recording medium, the manufacturing method and magnetic recording apparatus using the same 审中-公开
    磁记录介质，制造方法及使用其的磁记录装置

    公开(公告)号：US20060153975A1

    公开(公告)日：2006-07-13

    申请号：US11371912

    申请日：2006-03-10

    申请人： Toshinori Ono ,  Yuuichi Kokaku ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

    发明人： Toshinori Ono ,  Yuuichi Kokaku ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

    IPC分类号： B05D5/12

    CPC分类号： G11B5/8408

    摘要： This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic layer on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective layer mainly composed of carbon for protecting the magnetic layer exceeds 20%. The bonding force between the protective layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.

    摘要翻译： 该磁记录介质的特征在于，在通过插入至少下层在非磁性基板上具有磁性层的磁记录介质中，主要由主要构成的金刚石状碳保护层中的每100个碳原子的官能团的比例 用于保护磁性层的碳超过20％。 磁记录介质的保护层和润滑层之间的结合力增加，使得在高速旋转的情况下，不会引起润滑层的减少，从而提供具有高可靠性的磁记录装置。

    Magnetic recording medium and magnetic storage apparatus
    9.
    发明授权
    Magnetic recording medium and magnetic storage apparatus 失效
    磁记录介质和磁存储装置

    公开(公告)号：US06491798B2

    公开(公告)日：2002-12-10

    申请号：US09982161

    申请日：2001-10-19

    申请人： Yuuichi Kokaku ,  Yoshinori Honda ,  Toshinori Ono

    发明人： Yuuichi Kokaku ,  Yoshinori Honda ,  Toshinori Ono

    IPC分类号： G11B572

    CPC分类号： G11B5/72 ,  G11B5/725 ,  Y10S428/90 ,  Y10T428/1164 ,  Y10T428/24975 ,  Y10T428/30

    摘要： A magnetic recording medium includes at least a substrate, a recording layer formed of a non-magnetic underlying layer and a ferromagnetic thin film, deposited on the substrate, a sputtered carbon protective layer and a lubricant layer overlying the recording layer. The sputtered carbon protective layer is laminate layer formed by sputtering alternating first and second carbon layers, wherein a Young's modulus in a head pressing direction is twice or more larger than a Young's modulus in a head running direction. In this way, the durability of the magnetic disk can be significantly improved, and consequently, the protective layer can be made extremely thin, so that it can also contribute to an increased recording density.

    摘要翻译： 磁记录介质至少包括一个衬底，一个沉积在衬底上的非磁性底层和铁磁性薄膜形成的记录层，溅射碳保护层和覆盖在记录层上的润滑层。 溅射碳保护层是通过溅射交替的第一和第二碳层形成的层压层，其中头部挤压方向上的杨氏模量比头部行进方向上的杨氏模量大两倍或更多。这样， 可以显着改善磁盘，因此保护层可以非常薄，从而也可以有助于提高记录密度。

    Magnetic recording medium, process for producing same and magnetic disc apparatus
    10.
    发明授权
    Magnetic recording medium, process for producing same and magnetic disc apparatus 失效
    磁记录介质，其制造方法和磁盘装置

    公开(公告)号：US06403194B1

    公开(公告)日：2002-06-11

    申请号：US09382703

    申请日：1999-08-23

    申请人： Toshinori Ono ,  Yuuichi Kokaku ,  Yoshinori Honda ,  Hiroyuki Suzuki

    发明人： Toshinori Ono ,  Yuuichi Kokaku ,  Yoshinori Honda ,  Hiroyuki Suzuki

    IPC分类号： G11B572

    CPC分类号： G11B5/72 ,  G11B31/003 ,  G11B31/006 ,  Y10S428/90 ,  Y10T428/24975 ,  Y10T428/265 ,  Y10T428/30

    摘要： An object of the present invention is to provide a magnetic recording medium which has a sufficient impact resistance to withstand its accidental collision with a magnetic head and is neither worn away nor fractured in the CSS area by contact or friction between the magnetic recording medium and the magnetic head even if the thickness of a protective filmy layer is reduced in the data area. In order to achieve this object, a magnetic film and a protective film are formed on a substrate, and for example, the other portion of said protective film than a portion where said protective film comes into contact with a magnetic head is made of not only carbon and nitrogen but also hydrogen for increasing the hardness of said protective film.

    摘要翻译： 本发明的目的是提供一种磁记录介质，其具有足够的抗冲击性以抵抗其与磁头的意外碰撞，并且在CSS区域中既不磨损也不断裂，通过磁记录介质和 即使在数据区域中保护膜层的厚度减小，磁头也是如此。 为了实现该目的，在基板上形成磁性膜和保护膜，例如，除了保护膜与磁头接触的部分之外，所述保护膜的另一部分不仅形成 碳和氮，而且氢也用于增加所述保护膜的硬度。