Patents by Inventor Jrjeng Ruan

Jrjeng Ruan 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).

  • Polyester films with low thermal expansion and methods for manufacturing the same
    Patent number: 8772419
    Abstract: Disclosed is a method for manufacturing a polyester film with low thermal expansion. 95 wt % to 55 wt % of crystalline polyester and 5 wt % to 45 wt % of amorphous polyester are mixed. The blend is then melt extruded to form a sheet. The sheet is then biaxially stretched to obtain a film. The biaxially stretched film is then treated with a heat-setting procedure.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: July 8, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Li-Cheng Jheng, Jrjeng Ruan, Ming-Tsong Leu, Kuo-Chen Shih, Jyh-Horng Wu, Cheng-Hsing Fan
  • POLYESTER FILMS WITH LOW THERMAL EXPANSION AND METHODS FOR MANUFACTURING THE SAME
    Publication number: 20130150532
    Abstract: Disclosed is a method for manufacturing a polyester film with low thermal expansion. 95 wt % to 55 wt % of crystalline polyester and 5 wt % to 45 wt % of amorphous polyester are mixed. The blend is then melt extruded to form a sheet. The sheet is then biaxially stretched to obtain a film. The biaxially stretched film is then treated with a heat-setting procedure.
    Type: Application
    Filed: June 12, 2012
    Publication date: June 13, 2013
    Inventors: Li-Cheng JHENG, Jrjeng Ruan, Ming-Tsong Leu, Kuo-Chen Shih, Jyh-Horng Wu, Cheng-Hsing Fan