Patents by Inventor Chang-Jin Lee

Chang-Jin 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: 10525111
    Abstract: The present invention relates to microstructure formulation techniques for botulinum toxin. The microstructure formulation techniques for botulinum toxin according to the present invention make it possible to precisely control the concentration of botulinum toxin and to alleviate the pain occurring when botulinum toxin is administered into the human body, and also enable botulinum toxin to be accurately administered to a desired position. Thus, the present invention is expected to greatly contribute to the safe and convenient medical use of botulinum toxin.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: January 7, 2020
    Assignees: Hugel, Inc., Small Lab Co., Ltd.
    Inventors: Kyeong Yeop Moon, Chang Jin Lee, Dae Gun Kim, Dong Hoon Oh, Do Hyun Kang, Woo Ran Lee, Jeong Gyu Lee, Jun Jin Yoon
  • Publication number: 20190111119
    Abstract: The present invention relates to microstructure formulation techniques for botulinum toxin. The microstructure formulation techniques for botulinum toxin according to the present invention make it possible to precisely control the concentration of botulinum toxin and to alleviate the pain occurring when botulinum toxin is administered into the human body, and also enable botulinum toxin to be accurately administered to a desired position. Thus, the present invention is expected to greatly contribute to the safe and convenient medical use of botulinum toxin.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 18, 2019
    Inventors: Kyeong Yeop Moon, Chang Jin Lee, Dae Gun Kim, Dong Hoon Oh, Do Hyun Kang, Woo Ran Lee, Jeong Gyu Lee, Jun Jin Yoon
  • Patent number: 9969896
    Abstract: The aim of the present invention is to provide an indium-zinc-oxide semiconductor ink composition in which a spontaneous combustion reaction occurs, and provide an inorganic semiconductor thin film produced thereby. To this end, the present invention provides a semiconductor ink composition which includes a complex, represented by formula 1, incorporating a nitrate of a metal A which is an oxidizing material and incorporating a metal B which is a fuel material; wherein the metal A and the metal B are each respectively a metal selected from the group consisting of indium, gallium, zinc, titanium, aluminum, lithium, and zirconium, and metal A and metal B are different from each other.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: May 15, 2018
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Song yun Cho, Chang Jin Lee, Young Hun Kang
  • Patent number: 9852018
    Abstract: A method of detecting an error of a multi-time programmable (MTP) operation in which each gamma-offset and each header-bit at predetermined reference gray-levels are written in a MTP memory device while the MTP operation is performed on a pixel circuit, the each header-bit indicating whether or not the each gamma-offset is written in the MTP memory device, and it is detected whether or not the MTP operation is performed on the pixel circuit based on a logical operation between the header-bits at the predetermined reference gray-levels read from the MTP memory device when the MTP operation is finished on the pixel circuit.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: December 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myoung-Ho Kwon, Chang-Jin Lee, Chang-Kil Lee, Tae-Sik Kim
  • Patent number: 9478756
    Abstract: The present invention relates to a novel organometallic compound, and more particularly, to a luminescent organometallic compound in which intermolecular interaction is inhibited by means of introducing a germanium substituent, thereby improving light-emitting characteristics. The present invention also relates to an organic electronic device, specifically, to an organic light-emitting diode using the compound. According to the present invention, a germanium substituent is introduced to the parent organometallic iridium compound, thus inhibiting an intermolecular interaction in the solid state and enabling the compound of the present invention to be effectively used in solution processing. When the compound of the present invention is used as part of a light-emitting layer of an organic light-emitting diode, the light-emitting efficiency of the light-emitting diode may be significantly improved.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: October 25, 2016
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jaemin Lee, Chan Hyuk Park, Sung Cheol Yoon, Jongsun Lim, Young Hun Kang, Chang Jin Lee
  • Patent number: 9466185
    Abstract: Provided is a medium handling apparatus. The medium handling apparatus comprises a guider to define a first space in which a medium to be deposited and a medium to be withdrawn are handled and a second space in which a rejected medium is handled and at least one pick-up roller to pick up the medium that is disposed in each of the first and second spaces.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: October 11, 2016
    Assignee: LG CNS CO., LTD.
    Inventors: Chang Jin Lee, Sang Hoon Shin
  • Publication number: 20150379797
    Abstract: The present disclosure provides a recognizing and counting apparatus having a medium storing function, including: a hopper in which an inserted medium is stacked; a recognizing unit which recognizes an abnormal medium while counting the medium transferred from the hopper; a reject pocket in which abnormal medium recognized to be abnormal by the counting unit is stacked; a normal medium pocket in which a normal medium normally counted by the counting unit is stacked; one or more storage cassette which is disposed below the normal medium pocket to store the normal medium stacked in the normal medium pocket; and a conveying unit which is provided between the counting unit, the normal medium pocket, and the storage cassette to convey the normal medium.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 31, 2015
    Inventors: Chang Jin Lee, Maeng Cheol Park, Hyun Seok Lee, Seung Bin Jeon
  • Publication number: 20150275017
    Abstract: The aim of the present invention is to provide an indium-zinc-oxide semiconductor ink composition in which a spontaneous combustion reaction occurs, and provide an inorganic semiconductor thin film produced thereby. To this end, the present invention provides a semiconductor ink composition which comprises a complex, represented by formula 1, incorporating a nitrate of a metal A which is an oxidising material and incorporating a metal B which is a fuel material; wherein the metal A and the metal B are each respectively a metal selected from the group consisting of indium, gallium, zinc, titanium, aluminum, lithium, and zirconium, and metal A and metal B are different from each other.
    Type: Application
    Filed: June 11, 2015
    Publication date: October 1, 2015
    Inventors: Song yun CHO, Chang Jin LEE, Young Hun KANG
  • Patent number: 8901415
    Abstract: The present invention relates to a pyrene-containing conductive polymer represented by formula 1 and an organic solar cell comprising the same as an organic photovoltaic material. The conductive polymer has improved hole mobility as a result of introducing a specific amount of pyrene either into a polymer, which consists only of a donor functional group comprising one or more aromatic monomers, or into a donor-acceptor type polymer comprising a repeating acceptor introduced into a donor functional group. Thus, the conductive polymer can be used as an organic photovoltaic material in organic photodiodes (OPDs), organic light-emitting diodes (OLEDs), organic thin-film transistors (OTFTs), organic solar cells and the like. In addition, an organic solar cell showing high power conversion efficiency (PCE) can be provided using an organic photovoltaic material comprising the pyrene-containing conductive polymer as an electron donor.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: December 2, 2014
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Sang Jin Moon, Jong Cheol Lee, Won Wook So, Won Suk Shin, Sang Kyu Lee, Sung Cheol Yoon, Dohoon Hwang, Chang Jin Lee
  • Publication number: 20140318925
    Abstract: Provided is a medium handling apparatus. The medium handling apparatus comprises a guider to define a first space in which a medium to be deposited and a medium to be withdrawn are handled and a second space in which a rejected medium is handled and at least one pick-up roller to pick up the medium that is disposed in each of the first and second spaces.
    Type: Application
    Filed: April 30, 2014
    Publication date: October 30, 2014
    Applicant: LG CNS CO., LTD.
    Inventors: Chang Jin LEE, Sang Hoon SHIN
  • Publication number: 20140189444
    Abstract: A method of detecting an error of a multi-time programmable (MTP) operation in which each gamma-offset and each header-bit at predetermined reference gray-levels are written in a MTP memory device while the MTP operation is performed on a pixel circuit, the each header-bit indicating whether or not the each gamma-offset is written in the MTP memory device, and it is detected whether or not the MTP operation is performed on the pixel circuit based on a logical operation between the header-bits at the predetermined reference gray-levels read from the MTP memory device when the MTP operation is finished on the pixel circuit.
    Type: Application
    Filed: July 31, 2013
    Publication date: July 3, 2014
    Applicant: Samsung Display Co., Ltd
    Inventors: Myoung-Ho KWON, Chang-Jin LEE, Chang-Kil LEE, Tae-Sik KIM
  • Patent number: 8642375
    Abstract: Disclosed is a method of manufacturing the photoactive layer of organic photovoltaic cells using aerosol jet printing. The photoactive layer of the organic photovoltaic cell has high crystallinity and is easily formed into a multilayer structure, thus simplifying the process of manufacturing the organic photovoltaic cells. The solar power conversion efficiency of the organic photovoltaic cells including the photoactive layer is increased, thus facilitating the production of environmentally friendly energy.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: February 4, 2014
    Assignee: kOREA Research Institute of Chemical Technology
    Inventors: Sung Cheol Yoon, Hak Sung Lee, Chang Jin Lee, Jongsun Lim, Yong Gu Kang
  • Publication number: 20130334521
    Abstract: The present invention relates to a novel organometallic compound, and more particularly, to a luminescent organometallic compound in which intermolecular interaction is inhibited by means of introducing a germanium substituent, thereby improving light-emitting characteristics. The present invention also relates to an organic electronic device, specifically, to an organic light-emitting diode using the compound. According to the present invention, a germanium substituent is introduced to the parent organometallic iridium compound, thus inhibiting an intermolecular interaction in the solid state and enabling the compound of the present invention to be effectively used in solution processing. When the compound of the present invention is used as part of a light-emitting layer of an organic light-emitting diode, the light-emitting efficiency of the light-emitting diode may be significantly improved.
    Type: Application
    Filed: April 6, 2012
    Publication date: December 19, 2013
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jaemin Lee, Chan Hyuk Park, Sung Cheol Yoon, Jongsun Lim, Young Hun Kang, Chang Jin Lee
  • Publication number: 20130269575
    Abstract: Provided is a financial device. The financial device includes a medium depositing and withdrawal unit for allowing media to be deposited or withdrawn, a discrimination unit sensing media to be deposited or withdrawn, one or more medium storage boxes storing media deposited through the medium depositing and withdrawal unit or media to be withdrawn through the medium depositing and withdrawal unit, a collection storage box for storing media determined by the discrimination unit as bad media or media that are not picked up by a customer, and a single safety box containing the one or more medium storage boxes and the collection storage box for security.
    Type: Application
    Filed: January 4, 2012
    Publication date: October 17, 2013
    Applicant: LG CNS CO., LTD.
    Inventor: Chang Jin Lee
  • Patent number: 8519068
    Abstract: The present invention relates to a 2,7-carbazole-containing polymer represented by formula 1 and an organic photovoltaic device comprising the conductive polymer as a photoelectric conversion material. The conductive polymer has high photon absorption efficiency and improved hole mobility and is prepared by introducing a specific amount of a carbazole compound either into a polymer, consisting only of a donor functional group containing one or more aromatic monomers, or into a donor-acceptor type polymer comprising a repeating acceptor group introduced into a donor functional group. The conductive polymer can be used as a photoelectric conversion material for organic thin film transistors (OTFTs) or organic light-emitting diodes (OLEDs). Furthermore, the invention provides an organic photovoltaic device comprising the carbazole-containing conductive polymer as an electron donor, and thus can achieve high photoelectric conversion efficiency in organic thin film solar cells.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: August 27, 2013
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Sang Jin Moon, Won Suk Shin, Won Wook So, Hye Young Lee, Kyu Nam Kim, Sung Cheol Yoon, Chang Jin Lee
  • Publication number: 20130128170
    Abstract: A liquid crystal display device is disclosed which, according to one aspect, includes first and second substrates facing each other and a liquid crystal layer interposed between the first and second substrates. The first substrate includes a plurality of first pixels arranged in a first pixel column and a plurality of second pixels arranged in a second pixel column. The first pixels and the second pixels are connected to different ones of a plurality of gate lines and connected to any one of a plurality of data lines.
    Type: Application
    Filed: March 8, 2012
    Publication date: May 23, 2013
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Myong Ho Kwon, Chang-Jin Lee, Chang-Gil Lee, Tae-Sik Kim, Hwal Choi
  • Publication number: 20120305082
    Abstract: The present invention relates to a pyrene-containing conductive polymer represented by formula 1 and an organic solar cell comprising the same as an organic photovoltaic material. The conductive polymer has improved hole mobility as a result of introducing a specific amount of pyrene either into a polymer, which consists only of a donor functional group comprising one or more aromatic monomers, or into a donor-acceptor type polymer comprising a repeating acceptor introduced into a donor functional group. Thus, the conductive polymer can be used as an organic photovoltaic material in organic photodiodes (OPDs), organic light-emitting diodes (OLEDs), organic thin-film transistors (OTFTs), organic solar cells and the like. In addition, an organic solar cell showing high power conversion efficiency (PCE) can be provided using an organic photovoltaic material comprising the pyrene-containing conductive polymer as an electron donor.
    Type: Application
    Filed: October 13, 2010
    Publication date: December 6, 2012
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Sang Jin Moon, Jong Cheol Lee, Won Wook So, Won Suk Shin, Sang Kyu Lee, Sung Cheol Yoon, Dohoon Hwang, Chang Jin Lee
  • Patent number: 8214865
    Abstract: A video signal receiving apparatus, includes: a plurality of receiving parts which receive a video signal; a plurality of communicating parts which transmit the video signal to a plurality of external display devices, and transmit and receive control data for changing a display property of the video signal and a setting of the display devices to and from the external display devices; and a control part which controls the communicating parts to transmit the video signal received by the receiving part to the external display devices, and to receive the control data and to transmit a signal which controls the corresponding display devices if the control data is input from the external display devices.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: July 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-jin Lee
  • Patent number: 8213462
    Abstract: Provided is a media player comprising a connector to which a cable for transmitting a media signal from an external source is connected, and a user manipulator, the media player including a signal processor for processing the media signal transmitted through the cable; a UI generator for generating a setting menu for setting characteristics of the cable; and a controller for controlling the signal processor to process the media signal on the basis of the set characteristics of the cable inputted through the setting menu by the user manipulator. The media player and a control method thereof provides a user interface (UI) allowing a user to input information about cable characteristics, and process a signal according to the cable characteristics inputted by a user.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: July 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-jin Lee, Kwang-hoon Jeon
  • Publication number: 20120018715
    Abstract: The present invention relates to a 2,7-carbazole-containing polymer represented by formula 1 and an organic photovoltaic device comprising the conductive polymer as a photoelectric conversion material. The conductive polymer has high photon absorption efficiency and improved hole mobility and is prepared by introducing a specific amount of a carbazole compound either into a polymer, consisting only of a donor functional group containing one or more aromatic monomers, or into a donor-acceptor type polymer comprising a repeating acceptor group introduced into a donor functional group. The conductive polymer can be used as a photoelectric conversion material for organic thin film transistors (OTFTs) or organic light-emitting diodes (OLEDs). Furthermore, the invention provides an organic photovoltaic device comprising the carbazole-containing conductive polymer as an electron donor, and thus can achieve high photoelectric conversion efficiency in organic thin film solar cells.
    Type: Application
    Filed: March 31, 2010
    Publication date: January 26, 2012
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Sang Jin Moon, Won Suk Shin, Won Wook So, Hye Young Lee, Kyu Nam Kim, Sung Cheol Yoon, Chang Jin Lee