Patents by Inventor Ji-Yeon Seo

Ji-Yeon Seo 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).

  • Publication number: 20200030845
    Abstract: The present invention relates to a cured product having excellent stain resistance and low gloss, a method of manufacturing the same, and an interior material including the cured product. The cured product according to the present invention includes, along with an acrylic oligomer, an oligomer having a functional group containing silicon (Si) and an oligomer having a functional group containing fluorine (F), and thus, has excellent stain resistance and can implement a micro-folded structure on a surface thereof through extreme ultraviolet rays to be used during curing, thereby being capable of realizing low gloss without a matting agent.
    Type: Application
    Filed: August 21, 2018
    Publication date: January 30, 2020
    Inventors: Ji Yeon SEO, Heon Jo KIM, Min Kyung PARK, Tae Yi CHOI
  • Publication number: 20200024439
    Abstract: The present invention relates to a cured product having excellent stain resistance and low gloss, a method of manufacturing the same, and an interior material including the cured product. The cured product according to the present invention is formed by sequentially applying light in different specific wavelength ranges to a composition to cure the composition, thereby being capable of realizing a low gloss of 9 or less, based on a 60 degree gloss meter, without use of a matting agent and excellent stain resistance and exhibiting excellent abrasion resistance. Accordingly, the cured product may be usefully used as an interior material such as a flooring material.
    Type: Application
    Filed: May 18, 2018
    Publication date: January 23, 2020
    Inventors: Ji Yeon SEO, Heon Jo KIM, Tae Yi CHOI
  • Publication number: 20190382616
    Abstract: The present invention relates to a UV coating composition, and more particularly, to an environmentally friendly biomaterial-based UV coating composition having physical properties equal or superior to those of conventional petrochemical-based UV coating compositions.
    Type: Application
    Filed: April 19, 2018
    Publication date: December 19, 2019
    Inventors: Ji Yeon SEO, Heon Jo KIM, Jongdae PARK, Dong Hyung PARK, Samhun YUN, Hyemin CHO
  • Publication number: 20190054760
    Abstract: The present invention relates to: an ink-receiving layer composition for a decorative member, the composition comprising an acrylic emulsion, a metal salt, and organic particles or inorganic particles; a decorative member comprising a base layer, a printing layer formed on the base layer, and an ink-receiving layer disposed between the base layer and the printing layer and formed of a composition comprising an acrylic emulsion, a metal salt, and organic particles or inorganic particles; and a method for manufacturing a decorative member, the method comprising a step for preparing a base layer in a flat state, a step for coating a composition comprising an acrylic emulsion, a metal salt, and organic particles or inorganic particles on the base layer, a step for drying or UV curing the coated composition to form an ink-receiving layer, and a step for forming a printing layer on the ink-receiving layer.
    Type: Application
    Filed: December 21, 2016
    Publication date: February 21, 2019
    Inventors: Ji-Yeon SEO, Heon-Jo KIM, Sam-Hun YUN
  • Publication number: 20150307721
    Abstract: Provided is a coating composition for a layer having a low refractive index and comprising a siloxane compound and a metal salt. In addition, provided is a transparent conductive film including the layer having a low refractive index and formed by using the coating composition for a layer having a low refractive index.
    Type: Application
    Filed: November 8, 2013
    Publication date: October 29, 2015
    Applicant: LG HAUSYS, LTD.
    Inventors: Ji Yeon SEO, Won Kook KIM, Heon Jo KIM, Mu Seon RYU, Jin Ki HONG
  • Patent number: 9102647
    Abstract: Disclosed is a method for preparing lactide by using a solvent. According to the method, since an ionic liquid is used as a solvent in a second step in the course of preparing lactide, it is possible to secure mobility of the resulting reactant, and decrease a reaction temperature. In addition, the ionic liquid absorbs moisture generated during the reaction, and thus prevents degradation of lactide which is susceptible to moisture. Furthermore, to the present method allows for the preparation of lactide successively through the continuous supply of lactic acid oligomers. Because the use of an ionic liquid minimizes the contamination of a reactive group with by-products, the use of a solvent for reactor washing is unnecessary. Further, owing to a high boiling point of the ionic liquid, the ionic liquid can be easily harvested and recycled.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: August 11, 2015
    Assignee: Hyundai Motor Company
    Inventors: Si Hwan Kim, Chae Hwan Hong, Do Suck Han, Ji Yeon Seo
  • Publication number: 20150125690
    Abstract: Disclosed is a transparent conductive film for a touch panel that uses a single hybrid undercoating layer so as to be capable of index matching and has excellent barrier properties. The conductive film according to the present invention includes: a transparent base material; said hybrid undercoating layer, which is formed on the transparent base material, which consists of an inorganic network/organic network hybrid polymer, which has a refractive index of between 1.55 and 1.7, and which has a thickness of between 10 nm and 1.5 ?m; and a transparent conductive layer which is formed on the hybrid undercoating layer. Compared to the transparent conductive films of the prior art, the present invention has significantly higher productivity, has excellent barrier properties, and exhibits stable index matching.
    Type: Application
    Filed: May 7, 2013
    Publication date: May 7, 2015
    Inventors: Mu-Seon Ryu, Won-Kook Kim, Dong-Joo Kwon, Ji-Yeon Seo
  • Patent number: 8779426
    Abstract: A thin film transistor for increasing the conductivity of a channel region and suppressing the leakage current of a back channel region, and a display device including the thin film transistor, are discussed. According to an embodiment, the thin film transistor includes a gate electrode arranged on a substrate, a source electrode and a drain electrode spaced from each other on the substrate, a gate insulating film to insulate the gate electrode from the source electrode and the drain electrode, and a semiconductor layer insulated from the gate electrode through the gate insulating film, the semiconductor layer including a channel region and a back channel region, the semiconductor layer made of (In2O3)x(Ga2O3)y(ZnO)z(0?x?5, 0?y?5, 0?z?5), wherein X or Z is greater than Y in the channel region of the semiconductor layer, and Y is greater than X and Z in the back channel region of the semiconductor layer.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: July 15, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Seok Heo, Ji-Yeon Seo
  • Publication number: 20140187798
    Abstract: Disclosed is a method for preparing lactide by using a solvent. According to the method, since an ionic liquid is used as a solvent in a second step in the course of preparing lactide, it is possible to secure mobility of the resulting reactant, and decrease a reaction temperature. In addition, the ionic liquid absorbs moisture generated during the reaction, and thus prevents degradation of lactide which is susceptible to moisture. Furthermore, to the present method allows for the preparation of lactide successively through the continuous supply of lactic acid oligomers. Because the use of an ionic liquid minimizes the contamination of a reactive group with by-products, the use of a solvent for reactor washing is unnecessary. Further, owing to a high boiling point of the ionic liquid, the ionic liquid can be easily harvested and recycled.
    Type: Application
    Filed: October 23, 2013
    Publication date: July 3, 2014
    Applicant: Hyundai Motor Company
    Inventors: Si Hwan Kim, Chae Hwan Hong, Do Suck Han, Ji Yeon Seo
  • Publication number: 20110156021
    Abstract: A thin film transistor for increasing the conductivity of a channel region and suppressing the leakage current of a back channel region, and a display device including the thin film transistor, are discussed. According to an embodiment, the thin film transistor includes a gate electrode arranged on a substrate, a source electrode and a drain electrode spaced from each other on the substrate, a gate insulating film to insulate the gate electrode from the source electrode and the drain electrode, and a semiconductor layer insulated from the gate electrode through the gate insulating film, the semiconductor layer including a channel region and a back channel region, the semiconductor layer made of (In2O3)x(Ga2O3)y(ZnO)z(0?x?5, 0?y?5, 0?z?5), wherein X or Z is greater than Y in the channel region of the semiconductor layer, and Y is greater than X and Z in the back channel region of the semiconductor layer.
    Type: Application
    Filed: July 12, 2010
    Publication date: June 30, 2011
    Inventors: Jae-Seok HEO, Ji-Yeon Seo