Patents by Inventor Yun-Jeong Yang

Yun-Jeong Yang 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: 12084569
    Abstract: A thermoplastic resin composition of the present invention comprises: about 100 parts by weight of a rubber-modified aromatic vinyl-based copolymer resin containing a rubber-modified vinyl-based graft copolymer and an aromatic vinyl-based copolymer resin; about 0.1 to about 15 parts by weight of a polyalkyl(meth)acrylate resin; about 5 to about 20 parts by weight of a polyether ester amide block copolymer; and about 0.2 to about 5 parts by weight of sodium perchlorate (NaClO4). The thermoplastic resin composition is excellent in terms of static resistance, transparency, impact resistance, and the like.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: September 10, 2024
    Assignee: Lotte Chemical Corporation
    Inventors: Dong Hyun Park, Yun Jeong Yang, Gi Sun Kim
  • Patent number: 11661510
    Abstract: A thermoplastic resin composition of the present invention is characterized by comprising: a base resin containing a rubber-modified vinyl-based graft copolymer, a large-diameter rubber polymer having an average particle size of about 3 to about 8 ?m, and an aromatic vinyl-based copolymer resin; and polyorganosilsesquioxane fine particles having an average particle size of about 0.1 to about 10 ?m. The thermoplastic resin composition is excellent in low gloss, weather resistance, and the like.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 30, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Eun Joo Lee, Yun Jeong Yang, Young Chul Kwon, Dong Hyun Park
  • Publication number: 20220025168
    Abstract: A thermoplastic resin composition of the present invention comprises: about 100 parts by weight of a rubber-modified aromatic vinyl-based copolymer resin containing a rubber-modified vinyl-based graft copolymer and an aromatic vinyl-based copolymer resin; about 0.1 to about 15 parts by weight of a polyalkyl(meth)acrylate resin; about 5 to about 20 parts by weight of a polyether ester amide block copolymer; and about 0.2 to about 5 parts by weight of sodium perchlorate (NaClO4). The thermoplastic resin composition is excellent in terms of static resistance, transparency, impact resistance, and the like.
    Type: Application
    Filed: November 5, 2019
    Publication date: January 27, 2022
    Inventors: Dong Hyun PARK, Yun Jeong YANG, Gi Sun KIM
  • Patent number: 11124643
    Abstract: A thermoplastic resin composition of the present invention is characterized by comprising: a thermoplastic resin containing an acrylate-based rubber-modified vinyl-based graft copolymer and an aromatic vinyl-based copolymer resin; an ultraviolet stabilizer containing a hindered amine light stabilizer (HALS)-based ultraviolet stabilizer and a benzotriazole-based ultraviolet stabilizer; and zinc oxide having an average particle size of about 0.5 to about 3 ?m and a specific surface area BET of about 1 to about 10 m2/g. The thermoplastic resin composition has excellent weather resistance and antibacterial properties.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: September 21, 2021
    Assignee: Lotte Chemical Corporation
    Inventor: Yun Jeong Yang
  • Patent number: 11091624
    Abstract: A thermoplastic resin composition of the present invention comprises: a thermoplastic resin comprising an acrylate rubber-modified vinyl graft copolymer and an aromatic vinyl copolymer resin; a crosslinked aromatic vinyl copolymer resin; and zinc oxide having an average particle size of about 0.3 to 3 ?m and a BET specific surface area of about 1 to 10 m2/g. The thermoplastic resin composition and the article formed therefrom are excellent in low-glossiness, weather resistance, antibacterial properties, etc.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 17, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Min Kyoung Ham, Dong Hyun Park, Eun Joo Lee, Young Chul Kwon, Yun Jeong Yang, Hyun Ji Oh
  • Publication number: 20200347220
    Abstract: A thermoplastic resin composition of the present invention is characterized by comprising: a base resin containing a rubber-modified vinyl-based graft copolymer, a large-diameter rubber polymer having an average particle size of about 3 to about 8 ?m, and an aromatic vinyl-based copolymer resin; and polyorganosilsesquioxane fine particles having an average particle size of about 0.1 to about 10 ?m. The thermoplastic resin composition is excellent in low gloss, weather resistance, and the like.
    Type: Application
    Filed: December 11, 2018
    Publication date: November 5, 2020
    Inventors: Eun Joo LEE, Yun Jeong YANG, Young Chul KWON, Dong Hyun PARK
  • Publication number: 20200079951
    Abstract: A thermoplastic resin composition of the present invention is characterized by comprising: a thermoplastic resin containing an acrylate-based rubber-modified vinyl-based graft copolymer and an aromatic vinyl-based copolymer resin; an ultraviolet stabilizer containing a hindered amine light stabilizer (HALS)-based ultraviolet stabilizer and a benzotriazole-based ultraviolet stabilizer; and zinc oxide having an average particle size of about 0.5 to about 3 ?m and a specific surface area BET of about 1 to about 10 m2/g. The thermoplastic resin composition has excellent weather resistance and antibacterial properties.
    Type: Application
    Filed: December 19, 2017
    Publication date: March 12, 2020
    Inventor: Yun Jeong YANG
  • Publication number: 20190249001
    Abstract: A thermoplastic resin composition of the present invention comprises: a thermoplastic resin comprising an acrylate rubber-modified vinyl graft copolymer and an aromatic vinyl copolymer resin; a crosslinked aromatic vinyl copolymer resin; and zinc oxide having an average particle size of about 0.3 to 3 ?m and a BET specific surface area of about 1 to 10 m2/g. The thermoplastic resin composition and the article formed therefrom are excellent in low-glossiness, weather resistance, antibacterial properties, etc.
    Type: Application
    Filed: December 21, 2017
    Publication date: August 15, 2019
    Inventors: Min Kyoung HAM, Dong Hyun PARK, Eun Joo LEE, Young Chul KWON, Yun Jeong YANG, Hyun Ji OH
  • Patent number: 6900635
    Abstract: A partially parallel acquisition RF coil array for imaging a human head having a summit and a lower portion includes at least a first, a second and a third quadrature coil pair adapted to be arranged circumambiently about the lower portion of the head; and at least a forth, a fifth and a sixth quadrature coil pair adapted to be conformably arranged about the summit of the head.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: May 31, 2005
    Assignee: General Electric Company
    Inventors: Labros S. Petropoulos, Hiroyuki Fujita, Mark Xueming Zou, Yun-Jeong Yang, Dan K. Spence, Joseph Murphy-Boesch, Pei H. Chan, Dashen Chu