Heat-assisted magnetic recording head

Details Heat-assisted magnetic recording head Heat-assisted magnetic recording head

2006-08-24

2009-10-27

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C369S013170, C360S125030, C360S059000

Reexamination Certificate

active

07609591

ABSTRACT:
A heat-assisted magnetic recording head mounted on an end of a slider having an Air Bearing Surface (“ABS”) for recording data on a recording medium. The heat-assisted magnetic recording head includes a magnetic path forming unit that generates a magnetic field for recording the data, a light source that emits light heating a local region of the recording medium, a waveguide located on a side of the magnet path forming unit to transmit the light emitted from the light source, an optical path conversion unit that changes a direction of the light transmitted from the waveguide to the local region of the recording medium, and a nano-aperture that generates an enhanced near-field effect by converting an energy distribution of the light transmitted via the optical path conversion unit.

REFERENCES:
patent: 2007/0159718 (2007-07-01), Kim et al.
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patent: 1627371 (2002-06-01), None
patent: 1378687 (2002-11-01), None
patent: 1404041 (2003-03-01), None
patent: 1448916 (2003-10-01), None

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