Patents by Inventor Jin-Hyun Seong

Jin-Hyun Seong 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).

  • ADDITIVE, CONTAINING ALUMINUM SILICATE, FOR SECONDARY BATTERY ELECTROLYTE AND PREPARATION METHOD THEREFOR
    Publication number: 20240105993
    Abstract: There is provided an additive for secondary battery electrolyte, containing aluminum silicate. The aluminum silicate has a particle size of 200 nm to 20 ?m. The aluminum silicate has a mass ratio of 60 to 70 wt % of oxygen (O), 0.1 to 2.0 wt % of aluminum (Al), and 25 to 35 wt % of silicon (Si). The aluminum silicate has a surface area of 50 to 1,000 m2/g. The aluminum silicate has a pore size of 0.1 to 20 nm.
    Type: Application
    Filed: February 15, 2022
    Publication date: March 28, 2024
    Applicant: GIANT CHEMICAL CO., LTD
    Inventors: Dong Min SEONG, Dong Hyun KIM, Dong Gyun KANG, Dae Uk KIM, Jin Kyu KANG, Seung Yun HAN
  • ADDITIVE, CONTAINING MAGNESIUM SILICATE, FOR SECONDARY BATTERY ELECTROLYTE AND PREPARATION METHOD THEREFOR
    Publication number: 20240105994
    Abstract: There is provided an additive, containing magnesium silicate, for a secondary battery electrolyte and a preparation method therefor. The magnesium silicate has a mass ratio of 50 to 70 wt % of oxygen (O), 5 to 20 wt % of magnesium (Al), and 15 to 35 wt % of silicon (Si). The magnesium silicate has a surface area of 50 to 500 m2/g. The magnesium silicate has a pore size of 0.1 to 20 nm.
    Type: Application
    Filed: February 15, 2022
    Publication date: March 28, 2024
    Applicant: GIANT CHEMICAL CO., LTD
    Inventors: Dong Min SEONG, Dong Hyun KIM, Dong Gyun KANG, Dae Uk KIM, Jin Kyu KANG, Seung Yun HAN
  • Methods for purifying erythropoietin analogs having lower isoelectric point
    Patent number: 9994627
    Abstract: The present invention relates to a method for purifying an erythropoietin analog having a low isoelectric point below 4 by adding an N-linked sugar chain with high purity. In accordance with the present invention, the erythropoietin analog having an isoelectric point below 4, which is an isoform having more sialic acid residues, can be effectively purified via three-step chromatographic processes in short time at lower cost.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: June 12, 2018
    Assignee: CHONG KUN DANG PHARMACEUTICAL CORP.
    Inventors: Yeo-Wook Koh, Sang-Yong Lee, Cook-Hee Kim, Seung-Hui Lee, Ha-Na Kim, Su-Yon Kim, Jin-Hyun Seong, Yong-Hyun Cho
  • METHODS FOR PURIFYING ERYTHROPOIETIN ANALOGS HAVING LOWER ISOELECTRIC POINT
    Publication number: 20140243510
    Abstract: The present invention relates to a method for purifying an erythropoietin analog having a low isoelectric point below 4 by adding an N-linked sugar chain with high purity. In accordance with the present invention, the erythropoietin analog having an isoelectric point below 4, which is an isoform having more sialic acid residues, can be effectively purified via three-step chromatographic processes in short time at lower cost.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 28, 2014
    Applicant: CHONG KUN DANG PHARMACEUTICAL CORP.
    Inventors: Yeo-Wook Koh, Sang-Yong Lee, Cook-Hee Kim, Seung-Hui Lee, Ha-Na Kim, Su-Yon Kim, Jin-Hyun Seong, Yong-Hyun Cho