Oliff & Berridge, PLC
Thermally-assisted magnetic recording head having a waveguide and a return path section
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.
SAE Magnetics (H.K.) Ltd. Headway Technologies, Inc.
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inventional inventional additional inventional
Ryuji Hiroyuki Hironori Kazuki Shigeki Yoshitaka
Fujii Ito Araki Sato Tanemura Sasaki