发明名称 |
Magnetic recording medium |
摘要 |
According to one embodiment, a servo area of a magnetic recording medium includes magnetic dots arrayed at a period L0. The magnetic dots include a plurality of magnetic dot regions divided in the cross track direction. A width Wm in the down track direction of the mth magnetic dot region from the innermost circumference and a number Nm of dot rows in the down track direction of the mth region meet a relationship represented by L0{Nm√3/2−0.3}≦̸Wm≦̸L0{Nm√3/2+0.3}  (1). |
申请公布号 |
US8300340(B2) |
申请公布日期 |
2012.10.30 |
申请号 |
US201113039158 |
申请日期 |
2011.03.02 |
申请人 |
SAKURAI MASATOSHI;YAMAMOTO RYOSUKE;KIHARA NAOKO;YUZAWA AKIKO;KAMATA YOSHIYUKI;KABUSHIKI KAISHA TOSHIBA |
发明人 |
SAKURAI MASATOSHI;YAMAMOTO RYOSUKE;KIHARA NAOKO;YUZAWA AKIKO;KAMATA YOSHIYUKI |
分类号 |
G11B5/09;G11B5/64;G11B5/82;G11B21/02 |
主分类号 |
G11B5/09 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|