Displacement devices and methods for fabrication, use and control of same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9685849
APP PUB NO 20160065043A1
SERIAL NO

14920885

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Displacement devices comprise a stator and a moveable stage. The stator comprises a plurality of coils shaped to provide pluralities of generally linearly elongated coil traces in one or more layers. Layers of coils may overlap in the Z-direction. The moveable stage comprises a plurality of magnet arrays. Each magnet array may comprise a plurality of magnetization segments generally linearly elongated in a corresponding direction. Each magnetization segment has a magnetization direction generally orthogonal to the direction in which it is elongated and at least two of the magnetization directions are different from one another. One or more amplifiers may be connected to selectively drive current in the coil traces and to thereby effect relative movement between the stator and the moveable stage.

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Patent Owner(s)

Patent OwnerAddress
THE UNIVERSITY OF BRITISH COLUMBIAIRC ROOM 31-2194 HEALTH SCIENCES MALL VANCOUVER BRITISH COLUMBIA V6T 1Z3

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lu, Xiaodong Vancouver, CA 56 420
Usman, Irfan-Ur-Rab Richmond, CA 19 166

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