Patents by Inventor Kyung-Jae Kwon

Kyung-Jae Kwon 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: 11932618
    Abstract: Disclosed are novel compounds of Chemical Formula 1, optical isomers of the compounds, and pharmaceutically acceptable salts of the compounds or the optical isomers. The compounds, isomers, and salts exhibit excellent activity as GLP-1 receptor agonists. In particular, they, as GLP-1 receptor agonists, exhibit excellent glucose tolerance, thus having a great potential to be used as therapeutic agents for metabolic diseases. Moreover, they exhibit excellent pharmacological safety for cardiovascular systems.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: March 19, 2024
    Assignee: ILDONG PHARMACEUTICAL CO., LTD.
    Inventors: Hong Chul Yoon, Kyung Mi An, Myong Jae Lee, Jin Hee Lee, Jeong-geun Kim, A-rang Im, Woo Jin Jeon, Jin Ah Jeong, Jaeho Heo, Changhee Hong, Kyeojin Kim, Jung-Eun Park, Te-ik Sohn, Changmok Oh, Da Hae Hong, Sung Wook Kwon, Jung Ho Kim, Jae Eui Shin, Yeongran Yoo, Min Whan Chang, Eun Hye Jang, In-gyu Je, Ji Hye Choi, Gunhee Kim, Yearin Jun
  • Patent number: 11359086
    Abstract: Provided is a thermoplastic resin composition which comprises: a first copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a second copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a third copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; a fourth copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; and a fifth copolymer comprising maleimide-based units, aromatic vinyl-based units, and vinyl cyan-based units, wherein the first and second copolymers comprise alkyl acrylate-based rubber polymers with mutually different average particle sizes, and the third and fourth copolymers have mutually different weight average molecular weights.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 14, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Tae Hoon Kim, Seong Lyong Kim, Kyung Jae Kwon, Joon Hwi Jo, Kyu Seong Jeong
  • Publication number: 20200283614
    Abstract: Provided is a thermoplastic resin composition which comprises: a first copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a second copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a third copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; a fourth copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; and a fifth copolymer comprising maleimide-based units, aromatic vinyl-based units, and vinyl cyan-based units, wherein the first and second copolymers comprise alkyl acrylate-based rubber polymers with mutually different average particle sizes, and the third and fourth copolymers have mutually different weight average molecular weights.
    Type: Application
    Filed: November 29, 2018
    Publication date: September 10, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Tae Hoon KIM, Seong Lyong KIM, Kyung Jae KWON, Joon Hwi JO, Kyu Seong JEONG
  • Patent number: 9690020
    Abstract: There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr?1 ?m?1 in a wavelength band of 290 to 320 nm and a second peak with a maximum absorption coefficient of 0.11 to 0.16 phr?1 ?m?1 in a wavelength band of 330 to 400 nm, an acrylic resin, and a hindered amine light stabilizer (HALS), and a polarizing plate including the same.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 27, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Suk-Il Youn, Nam-Jeong Lee, Sang-Min Kwak, Kyung-Jae Kwon
  • Patent number: 9581734
    Abstract: There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr?1?m?1 in a wavelength band of 290 to 320 nm and a second peak with a maximum absorption coefficient of 0.11 to 0.16 phr?1?m?1 in a wavelength band of 330 to 400 nm, and acrylic resin, wherein the content of the ultraviolet light absorbent is 0.3 to 1.0 parts by weight with respect to 100 parts by weight of the acrylic resin, and a polarizing plate including the same.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: February 28, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Suk-Il Youn, Sang-Min Kwak, Kyung-Jae Kwon, Nam-Jeong Lee
  • Publication number: 20160018565
    Abstract: There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr?1?m?1 in a wavelength band of 290 to 320 nm and a second peak with a maximum absorption coefficient of 0.11 to 0.16 phr?1?m?1 in a wavelength band of 330 to 400 nm, and acrylic resin, wherein the content of the ultraviolet light absorbent is 0.3 to 1.0 parts by weight with respect to 100 parts by weight of the acrylic resin, and a polarizing plate including the same.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 21, 2016
    Inventors: Suk-II YOUN, Sang-Min KWAK, Kyung-Jae KWON, Nam-Jeong LEE
  • Publication number: 20150092264
    Abstract: There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr?1 ?m?1 in a wavelength band of 290 to 320 nm and a second peak with a maximum absorption coefficient of 0.11 to 0.16 phr?1 ?m?1 in a wavelength band of 330 to 400 nm, an acrylic resin, and a hindered amine light stabilizer (HALS), and a polarizing plate including the same.
    Type: Application
    Filed: March 4, 2014
    Publication date: April 2, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Suk-Il Youn, Nam-Jeong Lee, Sang-Min Kwak, Kyung-Jae Kwon