发明申请
- 专利标题: MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING APPARATUS
- 专利标题(中): 磁记录介质和磁记录和再现装置
-
申请号: US11780521申请日: 2007-07-20
-
公开(公告)号: US20080049359A1公开(公告)日: 2008-02-28
- 发明人: RYUJI TSUCHIYAMA , Masahumi Mochizuki , Kyosuke Ono , Yuko Tsuchiya , Hiroshi Ikekame
- 申请人: RYUJI TSUCHIYAMA , Masahumi Mochizuki , Kyosuke Ono , Yuko Tsuchiya , Hiroshi Ikekame
- 优先权: JP2006-229709 20060825
- 主分类号: G11B5/82
- IPC分类号: G11B5/82
摘要:
In a discrete track medium and a patterned medium, a meniscus adsorptive force is reduced and writing into adjacent tracks is prevented. A magnetic layer in lands or patterns in the discrete track medium or the patterned medium is formed into a cylindrical shelly or spherical shelly shape with a uniform thickness. Moreover, a height of cylindrical shelly land or a height of spherical shelly land is changed between 5 nm and 30 nm according to radial positions. Thus, an effect is achieved for providing a magnetic recording medium and a magnetic disk apparatus which are excellent in realizing higher recording density and higher reliability.