Patents by Inventor Ji Yeon Choi

Ji Yeon Choi 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: 8742025
    Abstract: Disclosed are an adhesive composition and a polarizing plate including the same and, more particularly, an adhesive composition including a vinyl-acrylate copolymer including a hydroxyalkylvinylether monomer as a repeating unit, a cross-linking agent, ionic solid, and a silane coupling agent and, in addition, a polarizing plate including the same. Such adhesive composition may have desired re-workability without decrease in durability caused by surface transfer of an ionic compound, and allow effective gelling of adhesive fraction, to thereby considerably reduce a curing period.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: June 3, 2014
    Assignee: Dongwoo Fine-Chem Co., Ltd.
    Inventors: Kyung Moon Jung, Han Young Choi, Ji Yeon Choi
  • Publication number: 20140123292
    Abstract: A method for an apparatus which operates in a data cloud includes requesting trust information from a service cloud, receiving the trust information from the service cloud, performing a trust assessment of the service cloud based on the trust information, and controlling transmission of data to the service cloud according to a result of the trust assessment.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: SAMSUNG SDS CO., LTD.
    Inventors: Andreas SCHMIDT, Andreas LEICHER, Lakshmi SUBRAMANIAN, Won Young KIM, Inhyok Cha, Ji Yeon Choi
  • Publication number: 20130280335
    Abstract: A biomedical implant according to this invention comprises ceramic complex, which includes a surface-modified basic ceramic particles, which are basic ceramic particles modified their surface with first biodegradable polymers, and the second biodegradable polymers. The first and second biodegradable polymer are combined each other and form a stereo complex. The biomedical implant has a superior effect to suppress inflammation caused by degradation of biodegradable polymers with improving its mechanical property.
    Type: Application
    Filed: October 2, 2012
    Publication date: October 24, 2013
    Applicant: Korea Institute of Science and Technology
    Inventors: Dong Keun HAN, Yoon Ki JOUNG, Jong Hee KANG, Ji Yeon CHOI, Chang Hun KUM
  • Publication number: 20120070650
    Abstract: Disclosed are biomedical implants comprising surface-modified metal particles and biodegradable polymers; its use for suppressing inflammation; and a method for preparing a biomedical material, comprising: (a) modifying surface of basic metal particles with a polymer to obtain surface-modified metal particles; and (b) mixing the surface-modified metal particles with a biodegradable polymer, followed by manufacturing a biodegradable biomedical implant, or coating the resulting mixture on a conventional biomedical implant.
    Type: Application
    Filed: January 6, 2011
    Publication date: March 22, 2012
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Keun Han, Kwi Deok Park, Jong Hee Kang, Bong Soo Lee, Ji Yeon Choi, Chang Hun Kum
  • Publication number: 20110293933
    Abstract: Disclosed are an adhesive composition and a polarizing plate including the same and, more particularly, an adhesive composition including a vinyl-acrylate copolymer including a hydroxyalkylvinylether monomer as a repeating unit, a cross-linking agent, ionic solid, and a silane coupling agent and, in addition, a polarizing plate including the same. Such adhesive composition may have desired re-workability without decrease in durability caused by surface transfer of an ionic compound, and allow effective gelling of adhesive fraction, to thereby considerably reduce a curing period.
    Type: Application
    Filed: May 26, 2011
    Publication date: December 1, 2011
    Applicant: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Kyung Moon Jung, Han Young Choi, Ji Yeon Choi