Rotor magnet, spindle motor comprising the same, recording...

Details Rotor magnet, spindle motor comprising the same, recording... Rotor magnet, spindle motor comprising the same, recording...

2008-03-21

2010-11-23

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156380, C310S156620, C310S156680, C310S156820

Reexamination Certificate

active

07839044

ABSTRACT:
An object of the present invention is to provide a rotor magnet that is capable of adjusting attraction of magnet that is mounted in a spindle motor, a spindle motor including the same, a recording and reproducing apparatus, and a jig for manufacturing the same, with a simple configuration. A rotor magnet is an approximately annular member that is attached to a rotor hub rotating around a shaft forming a part of a spindle motor. The rotor magnet is magnetized such that magnetization properties of axially top and bottom surfaces of the rotor magnet are different from each other.

REFERENCES:
patent: 6384503 (2002-05-01), Iwaki et al.
patent: 6817507 (2004-11-01), Yeon
patent: 2002/0117909 (2002-08-01), Gomyo
patent: 2003/0168923 (2003-09-01), Gomyo et al.
patent: 2005/0253471 (2005-11-01), Enomoto et al.
patent: 2006/0197395 (2006-09-01), Iguchi
patent: 1-76007 (1989-05-01), None
patent: 2003-274602 (2003-09-01), None
patent: 2004-248461 (2004-09-01), None
patent: 2004-328978 (2004-11-01), None

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