Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Reexamination Certificate
2007-03-20
2007-03-20
Lee, K. (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
C335S285000, C269S008000
Reexamination Certificate
active
10670241
ABSTRACT:
An alignment apparatus moves an X-Y slider together with X and Y beams. Electromagnetic guides (electromagnetic mechanisms) are interposed between the X-Y slider, the X beam, and the Y beam. The electromagnetic guides include alignment and acceleration electromagnets attached to the X-Y slider, and targets attached to the X and Y beams. The alignment electromagnet is feedback-controlled, whereas the acceleration electromagnet is feedforward-controlled.
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Japanese Office Action dated Jul. 11, 2005, issued in corresponding Japanese patent application number 2003-324688.
Asano Toshiya
Shibata Yugo
Fitzpatrick ,Cella, Harper & Scinto
Lee K.
Rojas Bernard
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