Patents by Inventor Jin Myung Cha

Jin Myung Cha 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).

  • Carbon nanotube dispersion and method for preparing the same
    Patent number: 11845655
    Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: December 19, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Dong Hyun Kim, Houng Sik Yoo, Jin Myung Cha, Gye Min Kwon, Hyun Sik Chae, Dong Hyun Cho, Sang Hoon Choy, Hyeon Choi, Hyung Suk Cho
  • CARBON NANOTUBE DISPERSION AND METHOD FOR PREPARING THE SAME
    Publication number: 20230085066
    Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.
    Type: Application
    Filed: November 23, 2022
    Publication date: March 16, 2023
    Inventors: Dong Hyun KIM, Houng Sik YOO, Jin Myung CHA, Gye Min KWON, Hyun Sik CHAE, Dong Hyun CHO, Sang Hoon CHOY, Hyeon CHOI, Hyung Suk CHO
  • Carbon nanotube dispersion and method for preparing the same
    Patent number: 11542164
    Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: January 3, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Dong Hyun Kim, Houng Sik Yoo, Jin Myung Cha, Gye Min Kwon, Hyun Sik Chae, Dong Hyun Cho, Sang Hoon Choy, Hyeon Choi, Hyung Suk Cho
  • CARBON NANOTUBE DISPERSION AND METHOD FOR PREPARING THE SAME
    Publication number: 20210246028
    Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.
    Type: Application
    Filed: June 7, 2019
    Publication date: August 12, 2021
    Inventors: Dong Hyun KIM, Houng Sik YOO, Jin Myung CHA, Gye Min KWON, Hyun Sik CHAE, Dong Hyun CHO, Sang Hoon CHOY, Hyeon CHOI, Hyung Suk CHO
  • Preparation method of magnetic cluster colloid and magnetic cluster colloid prepared thereby
    Patent number: 8840801
    Abstract: This invention relates to a manufacturing method of colloid comprising magnetic nanoclusters and magnetic nanocluster colloid made by the same. More particularly, this invention relates to a manufacturing method of colloid comprising magnetic nanoclusters comprising magnetic precursor and heterometal precursor by a certain ratio and magnetic nanocluster colloid made by the same.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: September 23, 2014
    Assignees: Seoul National University R&DB Foundation, Nanobrick Co., Ltd.
    Inventors: Jin Kyu Lee, Jin Myung Cha
  • PREPARATION METHOD OF MAGNETIC CLUSTER COLLOID AND MAGNETIC CLUSTER COLLOID PREPARED THEREBY
    Publication number: 20130099152
    Abstract: This invention relates to a manufacturing method of colloid comprising magnetic nanoclusters and magnetic nanocluster colloid made by the same. More particularly, this invention relates to a manufacturing method of colloid comprising magnetic nanoclusters comprising magnetic precursor and heterometal precursor by a certain ratio and magnetic nanocluster colloid made by the same.
    Type: Application
    Filed: April 5, 2011
    Publication date: April 25, 2013
    Applicants: NANOBRICK CO., LTD., SUN R & D B
    Inventors: Jin Kyu Lee, Jin Myung Cha