发明名称 |
Thermally-assisted magnetic recording head having a gap between propagation edge and magnetic pole |
摘要 |
A thermally-assisted magnetic recording head includes a waveguide, a near-field optical device which emits near-field light from a near-field-light-generating end surface that forms a portion of an opposed-to-medium surface, and a magnetic pole generates write field from its end on the opposed-to-medium surface side. The near-field optical device includes a contact-to-waveguide surface, and a propagation edge configured to propagate there on the surface plasmon excited by the light. A gap between a near-field optical device-opposed surface of the magnetic pole and the propagation edge of the near-field optical device is larger at a section far from the end on the opposed-to-medium surface side than that at a section near the opposed-to-medium surface side. |
申请公布号 |
US8208349(B2) |
申请公布日期 |
2012.06.26 |
申请号 |
US20100688367 |
申请日期 |
2010.01.15 |
申请人 |
TANAKA KOSUKE;MIYAUCHI DAISUKE;AOKI SUSUMU;ROPPONGI TETSUYA;CHOU TSUTOMU;IZAWA TAKAHIKO;KURIHARA KATSUKI;TDK CORPORATION |
发明人 |
TANAKA KOSUKE;MIYAUCHI DAISUKE;AOKI SUSUMU;ROPPONGI TETSUYA;CHOU TSUTOMU;IZAWA TAKAHIKO;KURIHARA KATSUKI |
分类号 |
G11B11/00 |
主分类号 |
G11B11/00 |
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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