Resources Contact Us Home
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
Detection of procedural deficiency across multiple business applications
Transaction finance processing system and approach
Contact detection between a disk and magnetic head
Endotracheal tube
Binary-to-gray converting circuits and gray code counter including the same
Non-transitory computer readable recording medium storing print management program, print management device, print management method, and print system
Soft co-processors to provide a software service function off-load architecture in a multi-core processing environment
  Randomly Featured Patents
Phosphor and method of making same
Filter cartridge with pressure relief valve
Component mounting method
Steering wheel cover
Replaceable tubular connector
Cooperative utilization of spatial indices between application and rendering hardware
Dynamic, seamless switching of a network session from one connection route to another
System and method for interfacing sensors to a sterile flow stream
Data processing apparatus for chromatograph
Firewood chop saw