Patents by Inventor Chang-Jong Kim

Chang-Jong 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: 20240132442
    Abstract: The present disclosure relates to a crystallization method of branched-chain amino acids capable of sustainably cycling ammonia, and branched-chain amino acid crystal produced by the method.
    Type: Application
    Filed: November 9, 2020
    Publication date: April 25, 2024
    Inventors: Jun Woo KIM, Shin Ae PARK, Ji Hyun SHIN, Jae Hun YU, Chang Yub OH, Min Jong KIM
  • Patent number: 11963386
    Abstract: A display apparatus includes a base substrate, a light emitting structure disposed on the base substrate, and a thin film encapsulation layer disposed on the light emitting structure and including at least one inorganic layer and at least one organic layer. The at least one inorganic layer includes a high density layer having a density of greater than or equal to about 2.0 g/cm3 and a low density layer having a density of less than about 2.0 g/cm3. The high density layer and the low density layer are in contact with each other.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang Yeong Song, Won Jong Kim, Yi Su Kim, Jong Woo Kim, Hye In Yang, Woo Suk Jung, Yong Chan Ju, Jae Heung Ha
  • Patent number: 7468839
    Abstract: A backlight unit having a polarization film for performing the function of a reflective polarization film, wherein the backlight unit includes a light source, an optical film and a polarization film. The light source emits a light having a certain wavelength, the optical film is located proximate to the light source to transmit the light outputted from the light guiding plate in a certain direction, and the polarization film is located proximate to the optical film. Here, the polarization film has a UV curing resin and lines disposed on the UV curing resin, and polarizes the light transmitted from the optical film. The backlight unit manufactures the polarization film by using an UV curing resin and a metal substance, and thus the manufacture period of the polarization film may be reduced enabling the polarization film to be manufactured in great quantities.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: December 23, 2008
    Assignee: LG Electronics Inc.
    Inventors: Jung Hoon Lee, Sang Gon Lee, Kang Yoon Kim, Chang Jong Kim, Kab Jin Hwang
  • Publication number: 20080239756
    Abstract: A backlight assembly of an LCD is provided. The backlight assembly includes a lamp for generating a light, a light guide plate disposed at a side of the lamp, for guiding the light, and a diffusion sheet and a prism sheet disposed on the light guide plate, for enhancing efficiency of the light outputted from the light guide plate, wherein the prism sheet comprises a body part and a plurality of protrusion parts each having a concavely inclined surface formed on the body part.
    Type: Application
    Filed: December 3, 2007
    Publication date: October 2, 2008
    Inventors: Yun Ho Choi, Chang Jong Kim, Young Gun Kim, Sang Gon Lee, Ung Sang Lee
  • Patent number: 7413335
    Abstract: The present invention relates to a prism sheet having a side which is perpendicular to the normal of a light guiding plate. The prism sheet includes a prism sheet base film and a plurality of linearly aligned prisms. The prisms are formed on one side of the prism sheet base film. Here, one side of each prism is perpendicular to the prism sheet base film. The prism sheet condenses a light outputted from a light guiding plate using its internal total reflection, and so the efficiency of the light is enhanced.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: August 19, 2008
    Assignee: LG Electronics Inc.
    Inventors: Seoung Ho Lee, Sang Gon Lee, Kang Yoon Kim, Chang Jong Kim, Hyun Seok Cho, Jung Hoon Lee
  • Patent number: 7303323
    Abstract: A backlight assembly of an LCD is provided. The backlight assembly includes a lamp for generating a light, a light guide plate disposed at a side of the lamp, for guiding the light, and a diffusion sheet and a prism sheet disposed on the light guide plate, for enhancing efficiency of the light outputted from the light guide plate, wherein the prism sheet comprises a body part and a plurality of protrusion parts each having a concavely inclined surface formed on the body part.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: December 4, 2007
    Assignee: LG Electronics Inc.
    Inventors: Yun Ho Choi, Chang Jong Kim, Young Gun Kim, Sang Gon Lee, Ung Sang Lee
  • Patent number: 7252428
    Abstract: A prism sheet of an LCD includes a body part made of a transparent resin material and a plurality of polypyramid-shaped optical unit structures formed in a intaglio type on the body part. The plurality of optical unit structures have intaglio-type polypyramid shapes in an inside of their polygonal structure. A center of the intaglio portion corresponds to a vertex of the polypyramid, thereby forming a point.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: August 7, 2007
    Assignee: LG.Electronics, Inc.
    Inventors: Sang Gou Lee, Chang Jong Kim, Young Gun Kim, Yun Ho Choi, Ho Sung Chin, Bong Taek Hong, Kab Jin Hwang, Ung Sang Lee, Chul Young Kim
  • Publication number: 20060039073
    Abstract: A prism sheet of a liquid crystal display (LCD) includes a body part made of a transparent resin material; and a plurality of intaglio-type optical unit structures arranged on the body part, each of the optical unit structures having an intaglio-type or a relief type polyhedron inside of a rectangular structure thereof, a center of the intaglio portion forming a line, not a dot.
    Type: Application
    Filed: December 30, 2004
    Publication date: February 23, 2006
    Inventors: Sang Gon Lee, Chang Jong Kim, Young Gun Kim, Yun Ho Choi, Ho Sung Chin, Boug Taek Hong, Kab Jin Hwang, Ung Sang Lee, Chul Young Kim
  • Patent number: 6835722
    Abstract: The present invention relates to a pharmaceutical composition for the treatment of metabolic bone disease and the method of preparation thereof, and more particularly, to an improved pharmaceutical composition for the therapeutic treatment of metabolic disease and the method of preparation thereof, wherein said composition is prepared as a composite pharmaceutical agent which comprises calcitriol; which reduces the rate of spine fractures and increases bone density; alendronate, a bone resorption inhibitor, as two main active ingredients in an optimal mixing ratio to exert the greatest synergistic therapeutic effect; and adequate amount of other additives such as a resorption fortifier of alendronate.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: December 28, 2004
    Assignee: Yuyu Industrial Co., Ltd.
    Inventors: Sung An Kang, Kyung Hee Lee, Chung Shil Kwak, Chang Jong Kim, Yong Oh Lee
  • Patent number: 6570833
    Abstract: A method and apparatus for initializing a recording film by heating it over its crystallizing temperature with heat that is generated based on the current flowing on the recording film or induced thereon, the current being generated from applying electric energy to the recording film of a phase transformation typed optical disk. The electric energy is provided through conductive wires being directly in contact with the recording film, or through an induction heating technique in which electric energy is provided via induction.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: May 27, 2003
    Assignee: LG Electronics Inc.
    Inventors: Chang-Jong Kim, Woon-Seng Yeo, Myong-Ryeong Kim, Hun Seo
  • Publication number: 20010043550
    Abstract: Method and apparatus are disclosed for initializing a recording film by heating it over its crystallizing temperature with Joule heat which is obtained by the current flowing on the recording film or induced thereon, the current being generated from applying electric energy to the recording film of a phase transformation typed optical disk. According to a feature of the present invention, the electric energy is provided through conductive wires being directly in contact with the recording film. According to another feature of the present invention, the recording film is heated by the induction heating technique.
    Type: Application
    Filed: April 6, 1998
    Publication date: November 22, 2001
    Inventors: CHANG-JONG KIM, WOON-SENG YEO, MYONG-RYEONG KIM, HUN SEO
  • Patent number: 6295182
    Abstract: A cartridge for reducing air resistance therein which is induced by the rotation of a disc-shaped storage medium housed in the cartridge. Air resistance is reduced by forming holes and/or grooves on a housing case through which air flows in and out spontaneously.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: September 25, 2001
    Assignee: LG Electronics Inc.
    Inventors: Woon-Sung Yeo, Chang-Jong Kim