Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate
2006-11-07
2006-11-07
Rutledge, D. (Department: 2851)
Photocopying
Projection printing and copying cameras
Step and repeat
C355S072000, C250S491100, C310S010000, C310S012060, C318S649000
Reexamination Certificate
active
07133115
ABSTRACT:
A positioning device for positioning an object includes a movable member movable in X and Y directions, a top plate, disposed above the movable member, for mounting the object, at least four driving units, disposed between the top plate and the movable member, for driving the top plate with respect to the movable member in a Z direction, a position measuring unit for measuring positions of the top plate in the X and Y directions, and a controller for selecting three of the driving units based on an output from the position measuring unit. Another positioning device includes a movable member, a top plate, a driving unit for driving the top plate with respect to the movable member, a measuring unit for measuring a position of the top plate at an elastic mode node, and a controller for controlling the driving unit based on output from the measuring unit.
REFERENCES:
patent: 5909272 (1999-06-01), Osanai et al.
patent: 5939852 (1999-08-01), Akutsu et al.
patent: 6008882 (1999-12-01), Ito et al.
patent: 6028376 (2000-02-01), Osanai et al.
patent: 6359679 (2002-03-01), Ito et al.
patent: 6714842 (2004-03-01), Ito
patent: 6742393 (2004-06-01), Ito
patent: 2004/0164253 (2004-08-01), Ito
patent: 2001-230177 (2001-08-01), None
Ito Hiroshi
Nawata Ryo
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Rutledge D.
LandOfFree
Positioning device, exposure apparatus using the positioning... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Positioning device, exposure apparatus using the positioning..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Positioning device, exposure apparatus using the positioning... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3640087