Patents by Inventor Do-kyung Lee

Do-kyung Lee 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: 9348060
    Abstract: The present invention relates to a polymeric triarylmethane dye, a blue resin composition for a color filter including the polymeric dye, and a color filter using the resin composition. The blue resin composition of the present invention is highly soluble in solvents and has excellent luminance, contrast, heat resistance, and chemical resistance due to the use of the polymeric triarylmethane dye. Particularly, the blue resin composition exhibits higher luminance and contrast than blue resin compositions using existing pigments. In addition, the blue resin composition of the present invention has greatly improved heat resistance and chemical resistance compared to blue resin compositions using existing triarylmethane dye monomers.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: May 24, 2016
    Assignee: Kyung-In Synthetic Co., Ltd.
    Inventors: Soonhyun Park, Jung Rok Kim, Jeong Gi Kim, Hyun Jae Chun, Do Kyung Lee, Min-Jung Lee, Youna Lee
  • Patent number: 9340673
    Abstract: Disclosed is a blue dye compound for a color filter represented by Chemical Formula 1. The blue colored resin composition including the blue dye compound has excellent solubility to an organic solvent, such as propylene glycol methyl ether acetate (PGMEA), excellent miscibility with the other dyes or pigments and high heat resistance. Therefore, when using the blue dye compound, it is possible to obtain a color filter having high luminance and contrast.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: May 17, 2016
    Assignee: KYUNG-IN SYNTHETIC CO., LTD.
    Inventors: Soonhyun Park, Jung Rok Kim, Jeong Gi Kim, Hyun Jae Chun, Do Kyung Lee, Min-Jung Lee, Youn A Lee
  • Publication number: 20160122545
    Abstract: Disclosed is a blue dye compound for a color filter represented by Chemical Formula 1. The blue colored resin composition including the blue dye compound has excellent solubility to an organic solvent, such as propylene glycol methyl ether acetate (PGMEA), excellent miscibility with the other dyes or pigments and high heat resistance. Therefore, when using the blue dye compound, it is possible to obtain a color filter having high luminance and contrast.
    Type: Application
    Filed: June 2, 2014
    Publication date: May 5, 2016
    Applicant: KYUNG-IN SYNTHETIC CO., LTD.
    Inventors: Soonhyun PARK, Jung Rok KIM, Jeong Gi KIM, Hyun Jae CHUN, Do Kyung LEE, Min-Jung LEE, Youn A LEE
  • Publication number: 20150322265
    Abstract: The present disclosure relates to a purple dye compound for a color filter and a coloring resin composition for a color filter containing the same. The novel xanthene-based purple dye compound or the polymer dye compound obtained using the same as a monomer has superior solvent resistance and superior miscibility with a pigment in an organic solvent. Further, it exhibits superior heat resistance, chemical resistance, light resistance and brightness due to the homopolymer structure. Accordingly, a coloring resin composition containing the same can be used widely as a dye for synthetic resins and synthetic fibers, as a coloring agent for polymer materials, for a color filter used in LCDs, PDPs, etc., and so forth.
    Type: Application
    Filed: February 27, 2013
    Publication date: November 12, 2015
    Inventors: Soonhyun PARK, Jeong Gi KIM, Jung Rok KIM, Do Kyung LEE, Heon PARK
  • Publication number: 20150316687
    Abstract: The present invention relates to a polymeric triarylmethane dye, a blue resin composition for a color filter including the polymeric dye, and a color filter using the resin composition. The blue resin composition of the present invention is highly soluble in solvents and has excellent luminance, contrast, heat resistance, and chemical resistance due to the use of the polymeric triarylmethane dye. Particularly, the blue resin composition exhibits higher luminance and contrast than blue resin compositions using existing pigments. In addition, the blue resin composition of the present invention has greatly improved heat resistance and chemical resistance compared to blue resin compositions using existing triarylmethane dye monomers.
    Type: Application
    Filed: March 20, 2013
    Publication date: November 5, 2015
    Inventors: Soonhyun PARK, Jung Rok KIM, Jeong Gi KIM, Hyun Jae CHUN, Do Kyung LEE, Min-Jung LEE, Youna LEE
  • Publication number: 20150060744
    Abstract: The present disclosure relates to a blue dye compound for a color filter and a coloring resin composition for a color filter containing the same. Since the blue resin composition according to the present disclosure, which contains the novel triarylmethane blue dye compound or the polymer dye compound obtained using the same as a monomer, has superior solubility in an organic solvent such as propylene glycol monomethyl ether acetate (PGMEA), cyclohexanone, etc. as well as superior miscibility with another pigment and high brightness, it can be used to prepare a color filter exhibiting superior heat resistance, light resistance and brightness.
    Type: Application
    Filed: February 27, 2013
    Publication date: March 5, 2015
    Inventors: Soonhyun Park, Jeong Gi Kim, Jung Rok Kim, Do Kyung Lee, Heon Park
  • Patent number: 8837914
    Abstract: A digital multimedia playback method and apparatus is provided, in which a user interface is used for allowing a user to conveniently play various multimedia contents. The digital multimedia playback method includes navigating contents stored in an external device connected to a digital multimedia playback apparatus through a communication line and providing a list of the found contents through a user interface, playing first found contents that have been first found among the found contents, analyzing a user input signal input through the user interface, and controlling playback, providing an additional function, or stopping playback and providing a navigation screen based on the analyzed user input signal. When a playback stop signal is consecutively input through the user interface, a message requesting removal of the communication line is displayed on the user interface.
    Type: Grant
    Filed: November 24, 2006
    Date of Patent: September 16, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Do-kyung Lee
  • Publication number: 20130259835
    Abstract: The present invention relates to a bifidobacterium adolescentis SPM0212 having antiviral activity for hepatitis B virus, and a pharmaceutical composition for preventing and treating hepatitis B comprising thereof. The bifidobacterium adolescentis SPM0212 or its fraction of the present invention shows antiviral activity for hepatitis B virus by blocking the production of antigen s of hepatitis B virus, and by inhibiting the expression of DNA, RNA and HBsAg of the HBV.
    Type: Application
    Filed: June 5, 2013
    Publication date: October 3, 2013
    Applicant: SAHMYOOK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION
    Inventors: Nam Joo HA, Kang Oh LEE, Do Kyung LEE
  • Publication number: 20130156738
    Abstract: The present invention relates to a bifidobacterium adolescentis SPMO212 having antiviral activity for hepatitis B virus, and a pharmaceutical composition for preventing and treating hepatitis B comprising thereof. The bifidobacterium adolescentis SPMO212 or its fraction of the present invention shows antiviral activity for hepatitis B virus by blocking the production of antigen s of hepatitis B virus, and by inhibiting the expression of DNA, RNA and HBsAg of the HBV.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 20, 2013
    Applicant: SAHMYOOK UNIVERSITY
    Inventors: Nam Joo HA, Kang Oh LEE, Do Kyung Lee
  • Publication number: 20070124780
    Abstract: A digital multimedia playback method and apparatus is provided, in which a user interface is used for allowing a user to conveniently play various multimedia contents. The digital multimedia playback method includes navigating contents stored in an external device connected to a digital multimedia playback apparatus through a communication line and providing a list of the found contents through a user interface, playing first found contents that have been first found among the found contents, analyzing a user input signal input through the user interface, and controlling playback, providing an additional function, or stopping playback and providing a navigation screen based on the analyzed user input signal. When a playback stop signal is consecutively input through the user interface, a message requesting removal of the communication line is displayed on the user interface.
    Type: Application
    Filed: November 24, 2006
    Publication date: May 31, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Do-kyung Lee