Patents by Inventor Ling-Yu Chang

Ling-Yu Chang 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).

  • SYNTHESIS OF OIL-SOLUBLE NEW COMPOSITIONS USED FOR DSERSING PIGMENT NANOPARTICLES AND THEIR APPLCATION ON ELECTROWETTING DISPLAY
    Publication number: 20140239241
    Abstract: The present invention provides a macromolecular dispersant and a synthesis method thereof, and the dispersant is synthesized by reacting polyisobutylene-g-succinic anhydride with amine compounds. In addition, the present invention also provides an oil-soluble dispersant composition with nano particle pigments and the manufacturing method thereof. The oil-soluble dispersant composition is manufactured by milling a macromolecular dispersant with a pigment and a grinding media. The oil-soluble dispersant composition is adequate for various pigments, shows the excellent immiscibility of oil/water interface, and owns the low viscosity of ?4 cps and the optical density of ink ?1.1. Therefore, the oil-soluble dispersant of the present invention for the nano particle pigment can be acted as the material of the electrowetting display.
    Type: Application
    Filed: January 3, 2014
    Publication date: August 28, 2014
    Applicant: National Taiwan University
    Inventors: Jiang-Jen Lin, Chih-Wei Chiu, Tzu-Chien Lee, Ling-Yu Chang