Invention Grant
- Patent Title: Thermally-assisted magnetic recording head having a waveguide and a return path section
- Patent Title (中): 具有波导和返回路径部分的热辅助磁记录头
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Application No.: US13660479Application Date: 2012-10-25
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Publication No.: US08498183B1Publication Date: 2013-07-30
- Inventor: Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Hironori Araki , Shigeki Tanemura , Ryuji Fujii
- Applicant: Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Hironori Araki , Shigeki Tanemura , Ryuji Fujii
- Applicant Address: US CA Milpitas CN Hong Kong
- Assignee: Headway Technologies, Inc.,SAE Magnetics (H.K.) Ltd.
- Current Assignee: Headway Technologies, Inc.,SAE Magnetics (H.K.) Ltd.
- Current Assignee Address: US CA Milpitas CN Hong Kong
- Agency: Oliff & Berridge, PLC
- Main IPC: G11B11/00
- IPC: G11B11/00
Abstract:
A thermally-assisted magnetic recording head includes a coil, a main pole, a return path section, a waveguide, and a plasmon generator. The waveguide includes a core and a cladding. The return path section includes: first and second columnar portions located on opposite sides of the core in the track width direction; a coupling portion coupling the first and second columnar portions to each other; and a third columnar portion connected to the coupling portion. The third columnar portion is smaller than the coupling portion in width in the track width direction. The coil includes a winding portion wound around the third columnar portion.
Information query
IPC分类:
