Thermally assisted magnetic head with optical waveguide and...

Details Thermally assisted magnetic head with optical waveguide and... Thermally assisted magnetic head with optical waveguide and...

2011-06-07

2011-06-07

Blouin, Mark (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

07957099

ABSTRACT:
A thermally assisted magnetic head which can realize high-density writing onto magnetic recording media is provided.The thermally assisted magnetic head includes a magnetic head part having a medium-opposing surface and a back face opposing the medium-opposing surface. The magnetic head part has a recording head part, an optical waveguide, and light shields. The optical waveguide extends along the opposing direction of the medium-opposing surface and back face. Each of the light shields extends along the opposing direction of the medium-opposing surface and back face and inhibits laser light from passing between the medium-opposing surface and back face. The optical waveguide and light shields are arranged on a first line when seen from the back face. When seen from the back face, the light shields oppose each other while interposing the first line therebetween and are arranged on a second line substantially orthogonal to the first line.

REFERENCES:
patent: 7538978 (2009-05-01), Sato et al.
patent: 7609480 (2009-10-01), Shukh et al.
patent: 7710686 (2010-05-01), Kim et al.
patent: 7729085 (2010-06-01), Jin et al.
patent: 7791838 (2010-09-01), Sato et al.
patent: 2004/0081030 (2004-04-01), Jang et al.
patent: 2006/0187564 (2006-08-01), Sato et al.
patent: A-2006-185548 (2006-07-01), None

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