Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Projection and exposure apparatus including an optical member and a holding member










Image Number 9 for United States Patent #6144504.

A projection and exposure apparatus includes an optical member, a holding member for holding the optical member with a gap between the optical member and the holding member, and a powder charged in the gap between the optical member and the holding member, such that the optical member and the holding member are maintained in a spaced-apart relationship.








 
 
  Recently Added Patents
Clip
Level-shift circuit, electro-optical device, and level shift method
Method of manufacturing semiconductor device and semiconductor device
Maintenance tool of control systems
Compounds and compositions for treating chemical warfare agent-induced injuries
Micromechanical component, device for beam deflection of monochromatic light, and spectrometer
Isolated SCR ESD device
  Randomly Featured Patents
Bottle
Dual panel display backlight power controller chip for handheld apparatus
Handle
Power inverter
Bottle
Instrumentation for implanting a spherical prosthesis
Picture hanging system
Fibrous padding material and process for its manufacture
Printer with automatic density adjusting function and density adjusting method of printer
Adenosine triphosphate derivative