Patents by Inventor Pyuck-Pa Choi

Pyuck-Pa Choi 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).

  • Publication number: 20220158067
    Abstract: Disclosed is a method for producing a Heusler-based phase thermoelectric material using an amorphous phase precursor. More specifically disclosed is a method for producing a powder or bulk thermoelectric material having a microstructure including a Heusler-based phase with a thermoelectric effect by crystallization of an amorphous phase precursor prepared by a non-equilibrium processes. Also disclosed is a device using a Heusler-based phase thermoelectric material produced by the method. The method largely avoids the efficiency problems of conventional methods, including low productivity in scaling up caused by long annealing time, high annealing temperature, and contamination during nanopowder production, achieving improved process efficiency. In addition, the method enables efficient production of a thermoelectric material having a nano-sized microstructure that is difficult to produce by a conventional method.
    Type: Application
    Filed: November 17, 2021
    Publication date: May 19, 2022
    Applicants: Kyungpook National University Industry-Academic Cooperation Foundation, Korea Advanced Institute of Science and Technology
    Inventors: Seong Hoon YI, Gi Tae PARK, Seong Tae KIM, Pyuck Pa CHOI, Chan Won JUNG
  • Publication number: 20210166791
    Abstract: An apparatus for constructing a library for deriving a material composition using empirical result, which enables acceleration of research on the material-properties relationship. By applying the empirical results of the material composition, missing data of the material compositions can be statistically calculated by using supervised non-linear imputation techniques. The completed composition information of the materials is passed as an input of machine learning material-properties relationship prediction.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 3, 2021
    Inventors: Seung Bum HONG, Eun Ae CHO, Jong Min YUK, Hye Ryung BYON, Yong Soo YANG, Pyuck Pa CHOI, Jong Hwa SHIN, Hyuck Mo LEE, CHI HAO LIOW, Seong Woo CHO, Gun PARK, Yong Ju LEE, Yoon Su SHIM, Moo Ny NA, Ho Sun JUN, Ki Hoon BANG, Myung Joon KIM, Chae Hwa JEONG, Seung Gu KIM, Chung Ik OH, Hong Jun KIM, Jae Gyu KIM, Ji Min OH, Ji Won YEOM, Seong Mun EOM, Hyoung Kyu KIM, Young Joon HAN, Dae Hee LEE, Ho Jun LEE, Jae Woon KIM, Jae Wook SHIN, Hyeon Muk KANG, Jae Yeol PARK, Han Beom JEONG, Jae Sang LEE, Joon Ha CHANG, Yo Han KIM, Su Jung KIM, Hyun Jeong OH, Arthur Baucour, Jae Wook HAN, Kyu Seon JANG, Hye Sung JO, Bo Ryung YOO, Hyeon Jin PARK, Min Gwan CHO, Jun Hyung PARK, Yea Eun KIM, Seok Hwan MIN, Jung Woo CHOI, Young Tae PARK, Doo Sun HONG
  • Patent number: 9090048
    Abstract: A counter electrode and a dye-sensitized photovoltaic cell having the counter electrode are provided. The counter electrode includes a conductive substrate, an adhesive layer formed on the conductive substrate, and a porous carbon material layer formed on the adhesive layer.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: July 28, 2015
    Assignee: Korea Institute of Science and Technology
    Inventors: Jong-Ku Park, Seung-Yong Lee, Yeon-Ik Jang, Pyuck-Pa Choi, Dong-Hwan Kim
  • Publication number: 20080087322
    Abstract: A counter electrode and a dye-sensitized photovoltaic cell having the counter electrode are provided. The counter electrode includes a conductive substrate, an adhesive layer formed on the conductive substrate, and a porous carbon material layer formed on the adhesive layer.
    Type: Application
    Filed: February 14, 2007
    Publication date: April 17, 2008
    Applicant: Korea Institute of Science and Technology
    Inventors: Jong-Ku Park, Seung-Yong Lee, Yeon-Ik Jang, Pyuck-Pa Choi, Dong-Hwan Kim