Patents by Inventor Li-Jiuan Chen

Li-Jiuan Chen 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).

  • Patent number: 9944567
    Abstract: A method of inhibiting an irregular aggregation of a nanosized powder includes (A) providing a nanosized ceramic powder to perform thereon a thermal analysis and thereby attain an endothermic peak temperature; (B) performing an impurity-removal heat treatment on the nanosized ceramic powder at a temperature higher than the endothermic peak temperature; (C) switching the nanosized ceramic powder from a temperature environment of the impurity-removal heat treatment to an environment of a temperature higher than a phase change temperature of the nanosized ceramic powder, followed by performing a calcination heat treatment on the nanosized ceramic powder in the environment of the temperature higher than the phase change temperature of the nanosized ceramic powder, wherein the nanosized ceramic powder skips the temperature environment between impurity-removal heat treatment and calcination heat treatment to shun generating a vermicular structure, avoid crystalline irregularity and abnormal growth, reduce particle
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: April 17, 2018
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Li-Jiuan Chen, Yen-Chung Chen, Hong-Fang Huang, Yu-Chun Wu
  • Publication number: 20170327426
    Abstract: A method of inhibiting an irregular aggregation of a nanosized powder includes (A) providing a nanosized ceramic powder to perform thereon a thermal analysis and thereby attain an endothermic peak temperature; (B) performing an impurity-removal heat treatment on the nanosized ceramic powder at a temperature higher than the endothermic peak temperature; (C) switching the nanosized ceramic powder from a temperature environment of the impurity-removal heat treatment to an environment of a temperature higher than a phase change temperature of the nanosized ceramic powder, followed by performing a calcination heat treatment on the nanosized ceramic powder in the environment of the temperature higher than the phase change temperature of the nanosized ceramic powder, wherein the nanosized ceramic powder skips the temperature environment between impurity-removal heat treatment and calcination heat treatment to shun generating a vermicular structure, avoid crystalline irregularity and abnormal growth, reduce particle
    Type: Application
    Filed: May 10, 2016
    Publication date: November 16, 2017
    Inventors: LI-JIUAN CHEN, YEN-CHUNG CHEN, HONG-FANG HUANG, YU-CHUN WU
  • Publication number: 20120060708
    Abstract: The invention discloses a metal pattern formation system produced in the following steps: an organic liquid is first printed on a substrate to form a base pattern. A metal is then evaporated to generate several metal particles for covering the printed substrate. At last, the substrate is heated to vaporize the base pattern, and the metal particles adhered to the substrate forms a metal pattern complementary to the base pattern.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 15, 2012
    Inventors: Li-Jiuan Chen, Chien-Ho Huang, Hsiou-Jeng Shy, Shang-Wanq Yeh, Ching-Yu Tso
  • Publication number: 20100151147
    Abstract: The invention discloses a metal pattern formation method including the following steps. At first, an organic liquid is printed on a substrate to form a base pattern. Afterward, a metal is evaporated to generate several metal particles for covering the printed substrate. At last, the substrate is heated to vaporize the base pattern, and the metal particles adhered to the substrate forms a metal pattern complementary to the base pattern.
    Type: Application
    Filed: December 13, 2008
    Publication date: June 17, 2010
    Inventors: Li-Jiuan Chen, Chien-Ho Huang, Hsiou-Jeng Shy, Shang-Wano Yeh, Ching-Yu Tso