1997. 01. 23. Method and system for spatial fitering     of an extended radiation source with chromatic     abberration of imaging optics 1997. 04. 26. Method and apparatus for generating     high peak power laser pulses in lamp pumped     continuous wave lasers by current mixing The commissioner of patents and trademarks 1998. 09. 09. The diffused reflection pumping devices 1999. 02. 23. United States Patent     Method and system for spatial filtering of an radiation 1999. 12. 27. Registration of a Venture Company 2000. 03. 31. Promising technical company 2000. 08. 29. Diffused reflection pumping equipment 2001. 10. 29. Various linear bar array of Laser Diode