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    • 5. 发明申请
    • Magnetic recording medium and manufacturing method thereof
    • 磁记录介质及其制造方法
    • US20090213497A1
    • 2009-08-27
    • US12378894
    • 2009-02-20
    • Toshinori OnoHiroshi KanaiTatsuysa HinoueHiroyuki SuzukiHiroshi Inaba
    • Toshinori OnoHiroshi KanaiTatsuysa HinoueHiroyuki SuzukiHiroshi Inaba
    • G11B5/82B05D5/12
    • G11B5/82G11B5/855
    • Embodiments of the present invention provide recording area separated magnetic recording media (DTMs, BPMs) allowing magnetic heads to fly lower. According to one embodiment, the recording area separated magnetic recording media are configured so that magnetic recording layers have parts with the relatively higher element ratio of a ferromagnetic material, and parts with the lower element ratio of the ferromagnetic material, occurring periodically in the in-plane direction, and the average height from the substrate surface of the parts with the relatively higher element ratio of a ferromagnetic material is higher than the average height from the substrate surface of the parts with the lower element ratio of the ferromagnetic material. In producing recording area separated magnetic recording media with the element ratio of a ferromagnetic material relatively lowered by ion implantation, preliminarily etching the part to be ion implanted makes the height after ion implantation relatively lower than the non-implanted part.
    • 本发明的实施例提供了允许磁头较低飞行的记录区分离的磁记录介质(DTM,BPM)。 根据一个实施例,记录区域分离的磁记录介质被配置为使得磁记录层具有铁磁材料的相对较高的元件比的部件,并且具有铁磁材料的较低元件比的部件在内部周期性地出现, 并且与铁磁材料相对较高的元件比的部件的基板表面的平均高度高于具有铁素体的较低元素比的部件的基板表面的平均高度。 在通过离子注入相对降低的铁磁材料的元素比率的记录区域分离的磁记录介质中,预先蚀刻待离子注入的部分使离子注入后的高度相对低于非注入部分。
    • 6. 发明授权
    • Magnetic recording medium having ion-implanted parts
    • 具有离子注入部件的磁记录介质
    • US08361640B2
    • 2013-01-29
    • US12378894
    • 2009-02-20
    • Toshinori OnoHiroshi KanaiTatsuysa HinoueHiroyuki SuzukiHiroshi Inaba
    • Toshinori OnoHiroshi KanaiTatsuysa HinoueHiroyuki SuzukiHiroshi Inaba
    • G11B5/66
    • G11B5/82G11B5/855
    • Embodiments of the present invention provide recording area separated magnetic recording media (DTMs, BPMs) allowing magnetic heads to fly lower. According to one embodiment, the recording area separated magnetic recording media are configured so that magnetic recording layers have parts with the relatively higher element ratio of a ferromagnetic material, and parts with the lower element ratio of the ferromagnetic material, occurring periodically in the in-plane direction, and the average height from the substrate surface of the parts with the relatively higher element ratio of a ferromagnetic material is higher than the average height from the substrate surface of the parts with the lower element ratio of the ferromagnetic material. In producing recording area separated magnetic recording media with the element ratio of a ferromagnetic material relatively lowered by ion implantation, preliminarily etching the part to be ion implanted makes the height after ion implantation relatively lower than the non-implanted part.
    • 本发明的实施例提供了允许磁头较低飞行的记录区分离的磁记录介质(DTM,BPM)。 根据一个实施例,记录区域分离的磁记录介质被配置为使得磁记录层具有铁磁材料的相对较高的元件比的部件,并且具有铁磁材料的较低元件比的部件在内部周期性地出现, 并且与铁磁材料相对较高的元件比的部件的基板表面的平均高度高于具有铁素体的较低元素比的部件的基板表面的平均高度。 在通过离子注入相对降低的铁磁材料的元素比率的记录区域分离的磁记录介质中,预先蚀刻待离子注入的部分使离子注入后的高度相对低于非注入部分。
    • 9. 发明申请
    • Magnetic recording medium and manufacturing method thereof
    • 磁记录介质及其制造方法
    • US20090214895A1
    • 2009-08-27
    • US12378777
    • 2009-02-18
    • Tatsuya HinoueHiroshi KanaiToshinori OnoHiroyuki SuzukiHiroshi Inaba
    • Tatsuya HinoueHiroshi KanaiToshinori OnoHiroyuki SuzukiHiroshi Inaba
    • G11B5/66C23C14/04
    • G11B5/855C23C14/3414C23C30/00G11B5/66H01F41/34
    • Embodiments of the present invention produce discrete track media and bit patterned media having both excellent read/write performance and reliability. According to one embodiment, the medium comprises a magnetic layers formed by at least two ferromagnetic alloy layers with different compositions on a substrate. The ferromagnetic alloy layer located closest to the medium surface has more concentrated parts and less concentrated parts of nonmagnetic element in the in-plane direction. The more concentrated parts of the nonmagnetic element contain more nonmagnetic elements than the other parts except for an intermediate layer in the magnetic recording layer. The more concentrated parts and the less concentrated parts of the nonmagnetic element in the ferromagnetic alloy layer located closest to the medium surface are formed substantially concentric. The more concentrated parts of the nonmagnetic element is formed by being doped with ions of nonmagnetic element.
    • 本发明的实施例产生具有优异的读/写性能和可靠性的离散轨道介质和位图案化介质。 根据一个实施例,介质包括由衬底上具有不同组成的至少两个铁磁性合金层形成的磁性层。 位于最靠近介质表面的铁磁合金层在面内方向具有更多的集中部分和更少的非磁性元件的集中部分。 除了磁记录层中的中间层之外,非磁性元件的集中部分比其他部分含有更多的非磁性元件。 位于最靠近介质表面的铁磁性合金层中的非磁性元件的集中部分和较不集中的部分基本上是同心的。 通过掺杂非磁性元素的离子形成非磁性元件越集中的部分。