发明申请
- 专利标题： PATTERNED MAGNETIC RECORDING MEDIA, STAMPER FOR MANUFACTURE OF PATTERNED MAGNETIC RECORDING MEDIA, METHOD OF MANUFACTURING PATTERNED MAGNETIC RECORDING MEDIA, AND MAGNETIC RECORDING/REPRODUCTION APPARATUS
- 专利标题（中）： 图形磁记录介质，图形磁记录介质的制造用冲压器，制造图形磁记录介质的方法和磁记录/再现装置
-
申请号： US12419052申请日： 2009-04-06
-
公开(公告)号： US20090195925A1公开(公告)日： 2009-08-06
- 发明人: Akira Kikitsu , Yoshiyuki Kamata , Takayuki Yamamoto , Hiroyuki Hyodo
- 申请人： Akira Kikitsu , Yoshiyuki Kamata , Takayuki Yamamoto , Hiroyuki Hyodo
- 申请人地址： JP Tokyo
- 专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址： JP Tokyo
- 优先权： JP2005-024160 20050131
- 主分类号： G11B5/127
- IPC分类号： G11B5/127 ; G11B5/82
摘要：
According to one embodiment, a patterned magnetic recording media has a magnetic recording layer and a protective layer formed on a substrate, in which the magnetic recording layer including a magnetic material patterned in tracks and a nonmagnetic material filled in between the tracks in a data area, and has a recessed portion formed in an area within 1 mm from an outer media end and extending to the media end. The recessed portion being formed 1 to 50 nm deeper than the data area.
公开/授权文献
信息查询
IPC分类:
