公开(公告)号：US20100290155A1

公开(公告)日：2010-11-18

申请号：US12741175

申请日：2008-10-31

申请人： Masato FUKUSHIMA ,  Gohel KUROKAWA ,  Yuzo SASAKI

发明人： Masato FUKUSHIMA ,  Gohel KUROKAWA ,  Yuzo SASAKI

IPC分类号： G11B5/127 ,  G11B5/74 ,  G11B5/84

CPC分类号： G11B5/851 ,  G11B5/65

摘要： A method of manufacturing a perpendicular magnetic recording medium is provided which is capable of improving fineness of a particle diameter and vertical orientation of a perpendicular magnetic recording layer, improving corrosion resistance of the magnetic recording medium, and recording and reproducing high-density information. Provided is the method of manufacturing a perpendicular magnetic recording medium (10) of the invention having at least a soft magnetic layer (2), an underlayer (4), an intermediate layer (5), and a perpendicular magnetic recording layer (6) which has a granular magnetic layer including at least an oxide, on a nonmagnetic substrate (1), the method including at least one of: a process of irradiating a surface of the soft magnetic layer with inert gas ions, after forming the soft magnetic layer; a process of irradiating a surface of the intermediate layer with inert gas ions, forming the intermediate layer; and a process of irradiating a surface of the granular magnetic layer with inert gas ions, after forming the granular magnetic layer that constitutes the perpendicular magnetic recording layer.

摘要翻译： 提供一种制造垂直磁记录介质的方法，其能够改善垂直磁记录层的粒径和垂直取向的细度，提高磁记录介质的耐腐蚀性，以及记录和再现高密度信息。 本发明的制造具有至少软磁性层（2），下层（4），中间层（5）和垂直磁记录层（6）的垂直磁记录介质（10）的制造方法， 其在非磁性基板（1）上具有至少包含氧化物的粒状磁性层，所述方法包括以下至少一个：在形成所述软磁性层之后，用惰性气体离子照射所述软磁性层的表面的工序 ; 用惰性气体离子照射中间层的表面的方法，形成中间层; 以及在形成构成垂直磁记录层的粒状磁性层之后，用惰性气体离子照射粒状磁性层的表面的工序。

公开(公告)号：US20100039730A1

公开(公告)日：2010-02-18

申请号：US12542372

申请日：2009-08-17

申请人： Shinichi ISHIBASHI ,  Migaku TAKAHASHI ,  Shin SAITO ,  Yuzo SASAKI ,  Atsushi HASHIMOTO ,  Gohei KUROKAWA ,  Tomoyuki MAEDA ,  Akihiko TAKEO

发明人： Shinichi ISHIBASHI ,  Migaku TAKAHASHI ,  Shin SAITO ,  Yuzo SASAKI ,  Atsushi HASHIMOTO ,  Gohei KUROKAWA ,  Tomoyuki MAEDA ,  Akihiko TAKEO

IPC分类号： G11B5/127 ,  G11B5/66 ,  C23C16/44

CPC分类号： G11B5/732 ,  B82Y25/00 ,  B82Y40/00 ,  G11B5/65 ,  G11B5/667 ,  H01F10/3272 ,  H01F41/306

摘要： The present invention provides a magnetic recording medium which is capable of improving the perpendicular orientation of a perpendicular magnetic recording layer while maintaining a writing performance during recording and obtaining both an improvement in the perpendicular orientation and fine magnetic crystal particles with a uniform diameter, and which enables information to be recorded or reproduced at high density, a method of manufacturing the same, and a magnetic recording/reproducing apparatus. A magnetic recording medium 10 according to the present invention includes at least a soft magnetic underlayer 2, an orientation control layer 3, a magnetic recording layer 4, and a protective layer 5 formed on a non-magnetic substrate 1. The orientation control layer 3 has a seed layer 6 and an intermediate layer 7. The seed layer 6 is made of a Cu—Ti alloy that has a face-centered cubic structure and includes Cu as a main component. The Cu—Ti alloy has a (111) crystal plane oriented substantially perpendicular to the surface of the non-magnetic substrate 1 and has a pseudo-hexagonal structure.

摘要翻译： 本发明提供一种磁记录介质，其能够在记录期间保持写入性能并且获得具有均匀直径的垂直取向和精细磁性结晶颗粒的改善的同时改善垂直磁记录层的垂直取向，并且其中 能够以高密度记录或再现信息，其制造方法和磁记录/再现装置。 根据本发明的磁记录介质10至少包括形成在非磁性基板1上的软磁性底层2，取向控制层3，磁记录层4和保护层5.取向控制层3 具有种子层6和中间层7.种子层6由具有面心立方结构并且包括Cu作为主要成分的Cu-Ti合金制成。 Cu-Ti合金具有大致垂直于非磁性基板1的表面定向的（111）晶面，并且具有假六边形结构。