Patents by Inventor Li Xiaochun

Li Xiaochun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • UV pulsed laser machining apparatus and method
    Publication number: 20060097430
    Abstract: A method of cutting polycarbonate thin sheets generally less than 2 millimeters includes providing a source of pulse ultraviolet (UV) radiation. In operation, the method includes directing the UV radiation at the polycarbonate sheet to photo-ablate the polycarbonate sheet. A combination of parameters associated with the radiation may be selected, including at least one of a group of fluence, speed, coating of polycarbonate, number of passes, increasing or decreasing focal length, changing focus position and focus spot size.
    Type: Application
    Filed: November 5, 2004
    Publication date: May 11, 2006
    Inventors: Li Xiaochun, Choi Hongseok, Jeffrey Platkowski