Magneto-optical head and magneto-optical disk drive

Details Magneto-optical head and magneto-optical disk drive Magneto-optical head and magneto-optical disk drive

2006-10-24

2006-10-24

Castro, Angel (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Protecting optical transducer

C369S013010, C369S023000

Reexamination Certificate

active

07127729

ABSTRACT:
A magneto-optical head including a lens forming a light spot on a storage disk, a magnetic field generating coil arranged between the lens and the disk to surround the optical center of the lens, and an annular heat sink arranged around the coil. The distance between the outer circumference of the coil and the inner circumference of the heat sink is 70–100 μm.

REFERENCES:
patent: 6584045 (2003-06-01), Ishii et al.
patent: 6631099 (2003-10-01), Kouchiyama
patent: 6697305 (2004-02-01), Yoshikawa
patent: 2002/0031056 (2002-03-01), Penning et al.
patent: 2002/0097639 (2002-07-01), Ishizaki et al.
patent: 2003/0026174 (2003-02-01), Yoshikawa et al.
patent: 2003/0099053 (2003-05-01), Yoshikawa
patent: 2004/0246877 (2004-12-01), Ishizaki et al.
patent: 2003-051144 (2003-02-01), None
Research and Developmetn of Nanometer Control Optical Disk System (magnetic domain response three-dimensional optical memory technology); Development of Technology for Rationalizing the Use of Energy, Optoelectronic Industry and Technology Developement Assoc. Promotion Organization of Next-Generation Optical Memory; Mar. 2003.

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