Invention Grant
- Patent Title: Magnetic head for perpendicular magnetic recording having a return path section
- Patent Title (中): 具有返回路径部分的垂直磁记录用磁头
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Application No.: US13493652Application Date: 2012-06-11
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Publication No.: US08780497B2Publication Date: 2014-07-15
- Inventor: Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Seiichiro Tomita , Hironori Araki , Tatsuya Shimizu
- Applicant: Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Seiichiro Tomita , Hironori Araki , Tatsuya Shimizu
- 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 PLC
- Main IPC: G11B5/17
- IPC: G11B5/17

Abstract:
A magnetic head includes first and second coils, a main pole, a write shield, a return path section, and a core part. The return path section includes a yoke part magnetically connected to the write shield, and a coupling part located away from a medium facing surface and magnetically coupling the yoke part and the main pole to each other. The first coil is located on the front side in the direction of travel of a recording medium relative to the main pole and wound around the coupling part. The core part is located farther from the medium facing surface than is the coupling part, and is magnetically connected to the main pole. The second coil is located on the front side in the direction of travel of the recording medium relative to the main pole and wound around the core part.
Public/Granted literature
- US20130329319A1 MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING HAVING A RETURN PATH SECTION Public/Granted day:2013-12-12
Information query
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