发明授权
- 专利标题： Recording head with high-frequency oscillator and bi-layer main pole height/width arrangement
- 专利标题（中）： 录音头采用高频振荡器和双层主极高/宽布置
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申请号： US13591012申请日： 2012-08-21
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公开(公告)号： US08705204B2公开(公告)日： 2014-04-22
- 发明人: Tomoko Taguchi , Kenichiro Yamada , Katsuhiko Koui , Tomomi Funayama , Norihito Fujita
- 申请人： Tomoko Taguchi , Kenichiro Yamada , Katsuhiko Koui , Tomomi Funayama , Norihito Fujita
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Knobbe Martens Olson & Bear LLP
- 优先权： JP2012-033161 20120217
- 主分类号： G11B5/31
- IPC分类号： G11B5/31
摘要：
According to one embodiment, a main pole of a recording head includes a first magnetic pole layer and a second magnetic pole layer laminated on the trailing side of the first magnetic pole layer. The first magnetic pole layer includes a tapered portion and a first tip portion. The second magnetic pole layer includes a tapered portion and a second tip portion. A width in a track direction of the second tip portion is smaller than that of the first tip portion. The high-frequency oscillator is between the second tip portion and the trailing shield and includes a width in the track direction substantially equal to the width in the track direction of the second tip portion, and a height of the first tip portion is taller than that of the second tip portion.
公开/授权文献
- US20130215532A1 RECORDING HEAD AND DISK DRIVE WITH THE SAME 公开/授权日：2013-08-22
信息查询
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