Patents by Inventor Seon-ll Kim

Seon-ll Kim 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).

  • ETCHANT AND METHOD OF MANUFACTURING DISPLAY DEVICE BY USING THE SAME
    Publication number: 20150307779
    Abstract: An etchant composition is provided comprising a persulfate from 0.5 to 20 wt %; a fluoride compound from 0.01 to 2 wt %; an inorganic acid from 1 to 10 wt %; a N (nitrogen atom)-containing heterocyclic compound from 0.5 to 5 wt %; a chloride compound from 0.1 to 5 wt %; a copper salt from 0.05 to 3 wt %; an organic acid or an organic acid salt from 0.1 to 10 wt %; an electron-donating compound from at 0.1 to 5 wt %; and a solvent of the residual amount. Also provided is a method of manufacturing a display device by using the same.
    Type: Application
    Filed: October 7, 2014
    Publication date: October 29, 2015
    Inventors: Jong-Hyun Choung, In-Bae Kim, Hong-Sick Park, Seon-ll Kim, In-Seol Kuk, Gi-Yong Nam, Young-Chul Park, In-Ho Yu, Young-Jin Yoon, Suck-Jun Lee