Patents by Inventor Keun Kyu Lee

Keun Kyu 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: 11943987
    Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gak Seok Lee, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Ji Eun Jang, Chang Soon Jang, Sun Kyu Joo, Ha Lim Ji
  • Publication number: 20150291453
    Abstract: A functional water manufacturing apparatus with self-generated electric power is disclosed, the apparatus includes: a water storing chamber configured to store one of a tap water, a purified water, a distilled water, and a water containing an adduct; an electrode unit configured to form a bottom surface by being coupled to a lower part of the water storing chamber, and to expose one of a positive electrode and a negative electrode; and a power supply unit configured to supply an electric power to the electrode unit by being arranged at a lower part of the electrode unit, and to generate an electric power by converting a kinetic energy added by a user to an electric energy, wherein the electrode unit converts the water stored in the water storing chamber to a functional water, by being supplied with the electric power from the power supply unit.
    Type: Application
    Filed: September 26, 2013
    Publication date: October 15, 2015
    Inventors: Seong Tae Kim, Keun Kyu Lee, Ki Seok Na, Young Se Na, Joon Seok Kim
  • Patent number: 8497333
    Abstract: Disclosed is a polylactic acid composition with improved heat-resistance and improved impact-resistance. Specifically, in the disclosed polylactic acid composition, both impact strength and heat-resistance are improved by mixing 30 to 80 wt % of polyketone and 10 to 40 wt % of modified rubber. The disclosed polylactic acid composition does not only exhibit excellent in heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance, etc., but also has improved impact-resistance and improved heat resistance. Thus, it is possible to employ polylactic acid as a bioplastic in interior/exterior parts of a vehicle.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: July 30, 2013
    Assignees: Hyundai Motor Company, Hyosung Corporation, Desco Co., Ltd.
    Inventors: Choon Soo Lee, Min Hee Lee, Bong Hyun Park, Jong Hwal Kim, Sung Kyoun Yoon, Byoung Gook Kang, Keun Kyu Lee, Jong Lee
  • Publication number: 20130066015
    Abstract: Disclosed is a polylactic acid composition with improved heat-resistance and improved impact-resistance. Specifically, in the disclosed polylactic acid composition, both impact strength and heat-resistance are improved by mixing 30 to 80 wt % of polyketone and 10 to 40 wt % of modified rubber. The disclosed polylactic acid composition does not only exhibit excellent in heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance, etc., but also has improved impact-resistance and improved heat resistance. Thus, it is possible to employ polylactic acid as a bioplastic in interior/exterior parts of a vehicle.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 14, 2013
    Applicants: HYUNDAI MOTOR COMPANY, DESCO CO., LTD., HYOSUNG CORPORATION
    Inventors: Choon Soo Lee, Min Hee Lee, Bong Hyun Park, Jong Hwal Kim, Sung Kyoun Yoon, Byoung Gook Kang, Keun Kyu Lee, Jong Lee