发明名称 |
Magnetic head for perpendicular magnetic recording capable of producing a write magnetic field of sufficient magnitude from the main pole while reducing the length of a magnetic path that connects the write shield and the main pole |
摘要 |
A magnetic head includes a coil, a main pole, a write shield, first and second yoke layers, and first and second coupling parts. The first yoke layer is located on the trailing side relative to the main pole whereas the second yoke layer is located on the leading side relative to the main pole. The first coupling part couples the main pole and the first yoke layer to each other. The second coupling part couples the first yoke layer and the second yoke layer to each other. The first coupling part includes a plurality of first magnetic path portions, and the second coupling part includes a plurality of second magnetic path portions. The coil includes one winding portion extending to pass around the first and second magnetic path portions alternately in a zigzag manner.
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申请公布号 |
US8593762(B1) |
申请公布日期 |
2013.11.26 |
申请号 |
US201213722378 |
申请日期 |
2012.12.20 |
申请人 |
SASAKI YOSHITAKA;ITO HIROYUKI;SATO KAZUKI;TANEMURA SHIGEKI;ARAKI HIRONORI;SHIMIZU TATSUYA;HEADWAY TECHNOLOGIES, INC.;SAE MAGNETICS (H.K.) LTD. |
发明人 |
SASAKI YOSHITAKA;ITO HIROYUKI;SATO KAZUKI;TANEMURA SHIGEKI;ARAKI HIRONORI;SHIMIZU TATSUYA |
分类号 |
G11B5/127 |
主分类号 |
G11B5/127 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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