发明名称 |
Return pole field reduction for perpendicular write head |
摘要 |
In a single vertical pole magnetic writer, flux passing through the return pole can sometimes be strong enough to erase previously recorded data. This problem has been overcome by the addition of a second return pole that is magnetically connected to the conventional return pole for the purpose of collecting leaked flux, thereby preventing it from reaching the underlayer.
|
申请公布号 |
US2005254169(A1) |
申请公布日期 |
2005.11.17 |
申请号 |
US20040844170 |
申请日期 |
2004.05.12 |
申请人 |
HEADWAY TECHNOLOGIES, INC. |
发明人 |
GUAN LIJIE;HU HUNG L.;TANG YAW S.;JU KOCHAN |
分类号 |
G11B5/127;G11B5/31;(IPC1-7):G11B5/127 |
主分类号 |
G11B5/127 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|