Patents by Inventor Pin-Jung LAI

Pin-Jung LAI 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).

  • Method for preparing silica nanoparticles
    Patent number: 10000646
    Abstract: A method for preparing silica nanoparticles includes the steps of: slowly titrating a sodium silicate solution with an acid solution to obtain a silicic acid-containing solution; continuously stirring the silicic acid-containing solution; slowly titrating the silicic acid-containing solution with the acid solution to obtain a silicic acid-enriched solution; continuously stirring the silicic acid-enriched solution; collecting the silicic acid-enriched solution as a silica nanoparticle precursor solution when a pH value of the silicic acid-enriched solution reaches a target pH value; and subjecting the silica nanoparticle precursor solution to a flame spray pyrolysis or a drying-grinding-calcining treatment.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 19, 2018
    Assignee: National Cheng Kung University
    Inventors: Yen-Hua Chen, Pin-Jung Lai, Chi-Hui Liang
  • METHOD FOR PREPARING SILICA NANOPARTICLES
    Publication number: 20180127601
    Abstract: A method for preparing silica nanoparticles includes the steps of: slowly titrating a sodium silicate solution with an acid solution to obtain a silicic acid-containing solution; continuously stirring the silicic acid-containing solution; slowly titrating the silicic acid-containing solution with the acid solution to obtain a silicic acid-enriched solution; continuously stirring the silicic acid-enriched solution; collecting the silicic acid-enriched solution as a silica nanoparticle precursor solution when a pH value of the silicic acid-enriched solution reaches a target pH value; and subjecting the silica nanoparticle precursor solution to a flame spray pyrolysis or a drying-grinding-calcining treatment.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 10, 2018
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Yen-Hua CHEN, Pin-Jung LAI, Chi-Hui LIANG