Patents by Inventor Seul-ki Kim

Seul-ki Kim 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: 20130010239
    Abstract: A display substrate includes a first blocking pattern and a color filter pattern. The first blocking pattern defines a plurality of pixel areas on a base substrate. The plurality of pixel areas includes a first pixel area and a second pixel area disposed adjacent to each other along a first direction. The color filter pattern partially overlaps each of the first pixel area and the second pixel area, for providing tolerance against misalignment of the color filter pattern with respect to the first and second pixel areas along the first direction, thereby maintaining the reliability of a display panel that includes the display substrate.
    Type: Application
    Filed: April 27, 2012
    Publication date: January 10, 2013
    Inventors: Jae-Hyun PARK, Seung-Sok SON, Yu-Jun KIM, Man-Hong NA, Hyun-Seong KANG, Seul-Ki KIM
  • Patent number: 7662310
    Abstract: Disclosed herein is a phosphor paste composition, which includes a phosphor, a dispersant, and a binder solution composed of a solvent and an organic binder, in which the dispersant includes iso-octylphenol ethoxylated phosphoric acid, phosphate ester of a block copolymer of nonylphenol and polyoxyethyleneglycol, or phosphate ester containing an acryl backbone. In addition, a display device using the phosphor paste composition is provided. The phosphor paste composition of this invention can be applied to various phosphor screens for display devices and to display devices, thus increasing high physical properties, including luminance, and greatly improving workability.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: February 16, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seul Ki Kim, Eun Sung Lee, Jae Young Choi
  • Patent number: 7662317
    Abstract: Provided is a dispersant including a hydrophobic moiety with a branched alkyl group and an arylene group and a hydrophilic moiety with an alkylene oxide group and a carboxylic acid group. The alkyl group is a substituted or unsubstituted alkyl group of 5-30 carbon atoms, the arylene group is a substituted or unsubstituted arylene group of 6-30 carbon atoms, and the alkylene oxide group is a substituted or unsubstituted alkylene oxide group of 2-10 carbon atoms. The dispersant has good dispersibility, and a low residual carbon content after sintering. Thus, a paste composition including the dispersant can maintain a low viscosity and disperse many inorganic particles. Thus, an inorganic device prepared using the paste composition can have a low residual carbon content and a high packing density.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 16, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-sung Lee, Jae-young Chol, Seul-ki Kim, Seon-mi Yoon, Nam-seok Baik, Sung-gi Yoon, Don-ik Lee
  • Patent number: 7463477
    Abstract: A mixed dispersant which can improve the efficiency of dispersing metal powder by effectively adsorbing on the surface of the metal powder and preventing aggregation thereof, and a paste composition and a dispersion method using the same are provided. A multilayer ceramic capacitor (MLCC) is also provided. The mixed dispersant includes a basic dispersant and an acidic dispersant in accordance with the acidity and basicity of nickel metal powder and thus can achieve an optimal dispersion efficiency. An improvement in the dispersion efficiency as such can consequently suppress aggregation of the nickel metal powder during the preparation of a conductive paste composition containing a nickel metal powder, and therefore a larger amount of the nickel metal powder can be used in the paste composition. The increased amount of nickel metal powder allows producing an internal nickel electrode having improved electric properties and mechanical properties during the production of MLCCs.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: December 9, 2008
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seon-mi Yoon, Eun-sung Lee, Jae-young Choi, Seul-ki Kim, Jong-gab Baek, Seo-ho Lee
  • Publication number: 20070184307
    Abstract: Provided are perpendicular magnetic recording media including a soft magnetic underlayer with a diffusion barrier layer. The soft magnetic underlayer includes an underlayer, a diffusion barrier layer, and an AFM layer, and a soft magnetic layer.
    Type: Application
    Filed: February 2, 2007
    Publication date: August 9, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Cheol Lee, Seong-yong Yoon, Hoon-sang Oh, Seul-ki Kim
  • Publication number: 20070157852
    Abstract: Provided is a dispersant including a hydrophobic moiety with a branched alkyl group and an arylene group and a hydrophilic moiety with an alkylene oxide group and a carboxylic acid group. The alkyl group is a substituted or unsubstituted alkyl group of 5-30 carbon atoms, the arylene group is a substituted or unsubstituted arylene group of 6-30 carbon atoms, and the alkylene oxide group is a substituted or unsubstituted alkylene oxide group of 2-10 carbon atoms. The dispersant has good dispersibility, and a low residual carbon content after sintering. Thus, a paste composition including the dispersant can maintain a low viscosity and disperse many inorganic particles. Thus, an inorganic device prepared using the paste composition can have a low residual carbon content and a high packing density.
    Type: Application
    Filed: June 30, 2006
    Publication date: July 12, 2007
    Inventors: Eun-sung Lee, Jae-young Choi, Seul-ki Kim, Soon-mi Yoon, Nam-seok Baik, Sung-gi Yoon, Don-ik Lee
  • Publication number: 20070014074
    Abstract: A mixed dispersant which can improve the efficiency of dispersing metal powder by effectively adsorbing on the surface of the metal powder and preventing aggregation thereof, and a paste composition and a dispersion method using the same are provided. A multilayer ceramic capacitor (MLCC) is also provided. The mixed dispersant includes a basic dispersant and an acidic dispersant in accordance with the acidity and basicity of nickel metal powder and thus can achieve an optimal dispersion efficiency. An improvement in the dispersion efficiency as such can consequently suppress aggregation of the nickel metal powder during the preparation of a conductive paste composition containing a nickel metal powder, and therefore a larger amount of the nickel metal powder can be used in the paste composition. The increased amount of nickel metal powder allows producing an internal nickel electrode having improved electric properties and mechanical properties during the production of MLCCs.
    Type: Application
    Filed: December 28, 2005
    Publication date: January 18, 2007
    Applicant: Samsung Electro-mechanics Co., Ltd.
    Inventors: Seon-mi Yoon, Eun-sung Lee, Jae-young Choi, Seul-ki Kim, Jong-gab Baek, Seo-ho Lee
  • Publication number: 20070012899
    Abstract: A phosphate dispersant which can improve the efficiency of dispersing nickel metal powder by effectively adsorbing on the surface of the metal powder and preventing aggregation thereof, and a paste composition and a dispersion method using the same are provided. A multilayer ceramic capacitor (MLCC) is also provided. The phosphate dispersant can achieve the optimal dispersion efficiency by strongly adsorbing on the surface of the nickel metal powder. An improvement in the dispersion efficiency as such can consequently suppress aggregation of the nickel metal powder during the preparation of a conductive paste composition containing a nickel metal powder, and therefore a larger amount of the nickel metal powder can be used in the paste composition. The increased amount of nickel metal powder allows producing an internal nickel electrode having improved electric properties and mechanical properties during the production of MLCCs.
    Type: Application
    Filed: December 29, 2005
    Publication date: January 18, 2007
    Applicant: Samsung Electro-mechanics Co., Ltd.
    Inventors: Eun-sung Lee, Jae-young Choi, Seon-mi Yoon, Seul-ki Kim, Jun-hee Kim, Jong-gab Baek
  • Publication number: 20070001608
    Abstract: Provided is paste composition that includes inorganic particles, an organic solvent, and a phosphate ester dispersant having a hydrophilic moiety with an alkylene group. The dispersant has good dispersibility and strong viscosity decreasing ability, so that contains more inorganic particles than a conventional paste composition at the same viscosity. Thus, a display device prepared using the paste composition has a better packing density.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 4, 2007
    Inventors: Eun-sung Lee, Jae-young Choi, Seul-ki Kim, Seon-mi Yoon, Nam-seok Baik, Yong-jun Jang
  • Publication number: 20060281624
    Abstract: A paste composition containing a mix of dispersants includes a dispersant containing a hydrophilic moiety having an acidic functional group; a dispersant containing a hydrophilic moiety having a basic functional group; an inorganic particle; and an organic solvent. The paste composition containing the mixed dispersants according to the present invention has low viscosity due to its excellent dispersibility, and a display device including the exemplary paste composition has an improved filling density.
    Type: Application
    Filed: June 13, 2006
    Publication date: December 14, 2006
    Inventors: Eun-sung Lee, Jae-young Choi, Seon-mi Yoon, Seul-ki Kim