发明名称 |
Vertical recording magnetic head |
摘要 |
A vertical recording magnetic head is disposed for movement close to or into sliding contact with a vertical recorded magnetic medium for purpose of magnetic recording and playback. To prevent the influences of external magnetic field upon a recording or reproduced magnetic field, a main magnetic pole of the head is surrounded by a block of a magnetizable material which exhibits a high permeability, which serves as a magnetic shield.
|
申请公布号 |
US5003423(A) |
申请公布日期 |
1991.03.26 |
申请号 |
US19890327258 |
申请日期 |
1989.03.22 |
申请人 |
OLYMPUS OPTICAL COMPANY LTD. |
发明人 |
IMAMURA, TATSUO;YOSHIMORI, HIROYUKI;FUKUDA, YOSHIO;ABE, HIROYUKI;WATANABE, HIROYUKI;KOIKE, MAKOTO |
分类号 |
G11B5/11;G11B5/127;G11B5/31 |
主分类号 |
G11B5/11 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|