Coherent light generators – Particular active media – Gas
Reexamination Certificate
2005-05-24
2005-05-24
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular active media
Gas
C372S078000
Reexamination Certificate
active
06898229
ABSTRACT:
In a gas circulation fan, a main shaft is supported in a non-contact manner, by magnetic bearings. Between each of the magnetic bearings and a controller, a relay is provided. Each relay includes a position detection sensor circuit, an offset adjuster, a feedback gain adjuster and a filter circuit. Thus, compatibility between a mechanical body unit and the controller is attained.
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patent: 11-303793 (1999-11-01), None
Harvey Minsun Oh
Nguyen Phillip
NTN Corporation
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