发明授权
- 专利标题： Thin film magnetic head and magnetic recording apparatus
- 专利标题（中）： 薄膜磁头和磁记录装置
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申请号： US10805408申请日： 2004-03-22
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公开(公告)号： US07154707B2公开(公告)日： 2006-12-26
- 发明人: Yuichi Watabe , Norikazu Ota , Yasuyuki Notsuke , Susumu Aoki , Tetsuya Roppongi , Naoto Matono
- 申请人： Yuichi Watabe , Norikazu Ota , Yasuyuki Notsuke , Susumu Aoki , Tetsuya Roppongi , Naoto Matono
- 申请人地址： JP Tokyo CN Hong Kong
- 专利权人： TDK Corporation,SAE Magnetics (H.K) Ltd.
- 当前专利权人： TDK Corporation,SAE Magnetics (H.K) Ltd.
- 当前专利权人地址： JP Tokyo CN Hong Kong
- 代理机构： Oliff & Berridge, PLC
- 优先权： JP2003-085960 20030326
- 主分类号： G11B5/127
- IPC分类号： G11B5/127
摘要：
Provided is a thin film magnetic head capable of securing recording characteristics even in the case where a return pole layer is disposed on a medium-outgoing side of the pole layer. The return yoke layer is disposed on a trailing side of the pole layer, and a neck height NH is within a range of NH≦W1 (a width of a front end portion in a main pole layer)+0.05 μm, and a height ratio (a ratio of the neck height NH to a throat height TH) NH/TH is within a range of 0.5
公开/授权文献
- US20040190197A1 Thin film magnetic head and magnetic recording apparatus 公开/授权日：2004-09-30
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