发明申请
- 专利标题： Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same
- 专利标题（中）： 用于垂直记录的磁头和使用该磁头的磁记录盘装置
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申请号： US11116301申请日： 2005-04-28
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公开(公告)号： US20050185335A1公开(公告)日： 2005-08-25
- 发明人: Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
- 申请人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
- 优先权： JP2002-036126 20020214
- 主分类号： G11B5/31
- IPC分类号： G11B5/31 ; G11B5/02 ; G11B5/127 ; G11B5/187
摘要：
A magnetic head includes a main pole having a first portion with a length (W1) in a cross-track direction which continuously increases from a leading edge side to a trailing edge side, a second portion formed on a trailing edge side of the first portion, and a third portion formed on a trailing edge side of the second portion. A length (W2) in the cross-track direction of a boundary line between the second portion and the third portion is longer than W1, and a length (W3) in the cross-track direction of a trailing edge of a third portion is substantially equal to W2.