Patents by Inventor Kyung Lee Park

Kyung Lee Park 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: 11912915
    Abstract: The present invention relates to a phosphine precursor for the preparation of a quantum dot, and a quantum dot prepared therefrom. Using the phosphine precursor for the preparation of a quantum dot of the present invention, a quantum dot with improved luminous efficiency and higher luminous color purity can be provided.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: February 27, 2024
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Hee Il Chae, Jeong Ho Park, Kyung Sil Yoon, Ju-Sik Kang, Yu Mi Chang, Nam-Choul Yang, Jae Kyun Park, Song Lee
  • Publication number: 20230093294
    Abstract: The present invention relates to a ligand compound having a novel structure of the following, a transition metal compound and a catalyst composition including the same: Wherein R1 to R7, and n are described herein.
    Type: Application
    Filed: April 16, 2021
    Publication date: March 23, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Seok Pil Sa, Eun Ji Shin, Seul Ki Im, Hyun Mo Lee, Ki Soo Lee, Bun Yeoul Lee, Kyung Lee Park