Patents by Inventor Dong Guk Kim

Dong Guk 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).

  • Patent number: 9889139
    Abstract: Provided is a method of treating inflammatory bowel disease comprising administering a pharmaceutical composition comprising a 6-aminopyridin-3-ol compound or a pharmaceutically acceptable salt thereof as an active ingredient to a subject, which inhibits colitis in a model of inflammatory bowel disease, and accordingly, they may be suitable for use as a drug for the prevention or treatment of inflammatory bowel disease.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: February 13, 2018
    Assignee: Research Cooperation Foundation of Yeungnam University
    Inventors: Byeong Seon Jeong, Jung Ae Kim, Dong Guk Kim, You Ra Kang, Tae Gyu Nam
  • Patent number: 9802897
    Abstract: An amidopyridinol derivative or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition including the amidopyridinol derivative as an active component represented by Chemical Formula 1 or a pharmaceutically acceptable salt thereof have an antiangiogenic effect in a chorioallantoic membrane model, and thus are useful as an agent for preventing or treating diseases associated with angiogenesis, and also have a colitis-inhibitory effect in a model of inflammatory bowel diseases, and thus are useful as an agent for preventing or treating inflammatory bowel diseases. Upon inoculation of lung cancer cells in a chorioallantoic membrane model, the amidopyridinol derivative of Chemical Formula 1 or the pharmaceutically acceptable salt thereof inhibits angiogenesis and tumor growth that are caused by tumorigenesis, and also inhibits the activity of cathepsin S that plays an important role in metastasis and invasion of cancer, and thus is useful as an inhibitor of cancer growth and metastasis.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: October 31, 2017
    Assignee: Research Cooperation Foundation of Yeungnam University
    Inventors: Byeong Seon Jeong, Jung Ae Kim, Tae gyu Nam, Hyun Ji Lee, Dong Guk Kim, You Ra Kang, Jae Hui Been, You Jin Jin, Sushil Chandra Regmi, Jaya Gautam
  • Publication number: 20160354352
    Abstract: Provided is a method of treating inflammatory bowel disease comprising administering a pharmaceutical composition comprising a 6-aminopyridin-3-ol compound or a pharmaceutically acceptable salt thereof as an active ingredient to a subject, which inhibits colitis in a model of inflammatory bowel disease, and accordingly, they may be suitable for use as a drug for the prevention or treatment of inflammatory bowel disease.
    Type: Application
    Filed: August 16, 2016
    Publication date: December 8, 2016
    Applicant: Research Cooperation Foundation of Yeungnam University
    Inventors: Byeong Seon JEONG, Jung Ae KIM, Dong Guk KIM, You Ra KANG, Tae Gyu NAM
  • Patent number: 9452159
    Abstract: A method or composition including 6-aminopyridin-3-ol derivatives or pharmaceutically acceptable salts thereof for treating a disease caused by angiogenesis, the 6-aminopyridin-3-ol derivatives represented by Formula 1 or the pharmaceutically acceptable salts thereof have excellent neoangiogenesis inhibition effects in the chorioallantoic membrane model, and are suitable for use as a drug for the treatment of disease caused by angiogenesis.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 27, 2016
    Assignee: RESEARCH COOPERATION OF YEUNGNAM UNIVERSITY
    Inventors: Byeong Seon Jeong, Jung Ae Kim, Dong Guk Kim, You Ra Kang, Tae Gyu Nam
  • Patent number: 9368075
    Abstract: A method of driving a dual mode liquid crystal display device includes: applying a first horizontal electric field to the liquid crystal layer for a first duration time during a reset period of a memory mode, the first duration time longer than a frame; eliminating the first horizontal electric field and keeping the liquid crystal layer without the first horizontal electric field for a second duration time during the reset period of the memory mode; applying a first vertical electric field corresponding to a static image for a third duration time during a writing period of the memory mode, the third duration time longer than the frame; and eliminating the first vertical electric field and keeping the liquid crystal layer without the first vertical electric field for a fourth duration time during the writing period of the memory mode.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: June 14, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Joong-Ha Lee, Dong-Guk Kim
  • Publication number: 20160068489
    Abstract: The present invention relates to an amidopyridinol derivative or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition including an amidopyridinol derivative or a pharmaceutically acceptable salt thereof as an active component. An amidopyridinol derivative represented by Chemical Formula 1 or a pharmaceutically acceptable salt thereof has an excellent antiangiogenic effect in a chorioallantoic membrane model, and thus is useful as an agent for preventing or treating diseases associated with angiogenesis, such as macular degeneration or arthritis, and also has an excellent colitis-inhibitory effect in a model of inflammatory bowel diseases, and thus is useful as an agent for preventing or treating inflammatory bowel diseases.
    Type: Application
    Filed: April 21, 2014
    Publication date: March 10, 2016
    Applicant: Research Cooperation Foundation of Yeungnam University
    Inventors: Byeong Seon JEONG, Jung Ae KIM, Tae gyu NAM, Hyun Ji LEE, Dong Guk KIM, You Ra KANG, Jae Hui BEEN, You Jin JIN, Sushil Chandra REGMI, Jaya GAUTAM
  • Patent number: 9170445
    Abstract: Disclosed are a flexible liquid crystal display (LCD) device and a method of manufacturing the same. The flexible LCD device comprises a first flexible substrate and a second flexible substrate. A layer is disposed on the first flexible substrate and first pixel control lines are disposed on the second flexible substrate. The LCD device also includes polymer walls disposed between the first flexible substrate and the second flexible substrate that maintain a cell gap between the first flexible substrate and the second flexible substrate. The polymer walls are substantially aligned with the first pixel control lines and light transparent gaps in the layer disposed on the first flexible substrate.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: October 27, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Guk Kim, Gee Sung Chae, Dongcheon Shin, Won Bong Jang, Joong Ha Lee, Tae Hyoung Kwak
  • Publication number: 20150238471
    Abstract: A method or composition including 6-aminopyridin-3-ol derivatives or pharmaceutically acceptable salts thereof for treating a disease caused by angiogenesis, the 6-aminopyridin-3-ol derivatives represented by Formula 1 or the pharmaceutically acceptable salts thereof have excellent neoangiogenesis inhibition effects in the chorioallantoic membrane model, and are suitable for use as a drug for the treatment of disease caused by angiogenesis.
    Type: Application
    Filed: December 21, 2012
    Publication date: August 27, 2015
    Inventors: Byeong Seon Jeong, Jung Ae Kim, Dong Guk Kim, You Ra Kang, Tae Gyu Nam
  • Patent number: 8913204
    Abstract: A method of driving a bi-stable chiral splay nematic mode liquid crystal display device including first and second substrates, a liquid crystal layer between the first and second substrates, first and second reset electrodes on one of inner surfaces of the first and second substrates, a pixel electrode on the inner surface of the first substrate and a common electrode on the inner surface of the second substrate includes: applying a data voltage and a common voltage to the pixel electrode and the common electrode, respectively, such that a vertical electric field is generated and the liquid crystal layer transitions from a splay state to a ?-twist state during a writing period; and floating the pixel electrode and the common electrode such that the liquid crystal layer keeps the ?-twist state and displays a present image during a memory period.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: December 16, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Guk Kim, Wook-Sung Kim
  • Patent number: 8823891
    Abstract: A liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a gate line and a data line on the first substrate, the gate line and the data line crossing each other to define a pixel region; a thin film transistor and a pixel electrode in the pixel region on the first substrate, the thin film transistor connected to the gate line and the data line, the pixel electrode connected to the thin film transistor; a common electrode on the second substrate, the common electrode facing the pixel electrode; at least one first reset electrode and at least one second reset electrode on one of the first and second substrates, the at least one first reset electrode and the at least one second reset electrode spaced apart from each other; and a bi-stable chiral splay nematic liquid crystal layer between the first and second substrates, the bi-stable chiral splay nematic liquid crystal layer having bi-stable states of a splay state as an initial state and a ?-twist state, whe
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: September 2, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Guk Kim, Wook-Sung Kim
  • Patent number: 8793858
    Abstract: A method of fabricating an alignment layer comprises depositing an alignment material on a substrate, the alignment material including reactive mesogens and a photoinitiator, the reactive mesogen having a mesogen, flexible spacers at ends of the mesogen, and photo-reactive end groups formed at ends of the flexible spacers, applying an electric field to the alignment material in a predetermined direction, and applying UV light to the alignment material applied by the electric field applied thereto to polymerize the photo-reactive end groups with each other.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: August 5, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Dong-Guk Kim
  • Publication number: 20140111746
    Abstract: Disclosed are a flexible liquid crystal display (LCD) device and a method of manufacturing the same. The flexible LCD device comprises a first flexible substrate and a second flexible substrate. A layer is disposed on the first flexible substrate and first pixel control lines are disposed on the second flexible substrate. The LCD device also includes polymer walls disposed between the first flexible substrate and the second flexible substrate that maintain a cell gap between the first flexible substrate and the second flexible substrate. The polymer walls are substantially aligned with the first pixel control lines and light transparent gaps in the layer disposed on the first flexible substrate.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 24, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Dong Guk KIM, Gee Sung CHAE, Dongcheon SHIN, Won Bong JANG, Joong Ha LEE, Tae Hyoung KWAK
  • Patent number: 8659736
    Abstract: A dual mode LCD device includes first and second substrates facing each other; a first electrode on an inner surface of the first substrate and having a plate shape; a first insulating layer on the first electrode; a second electrode and a third electrode on the first insulating layer, being spaced apart from each other and extending along a first direction; a fourth electrode on an inner surface of the second substrate; and a liquid crystal layer interposed between the first and second substrates and including chiral dopants, wherein liquid crystal molecules of the liquid crystal layer are stably arranged in a first twist state and a second twist state, wherein the first and second twist states are used for a memory mode and the second twist state and a vertical alignment state are used for a dynamic mode.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 25, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Joong-Ha Lee, Wook-Sung Kim, Dong-Guk Kim
  • Patent number: 8654280
    Abstract: A bi-stable chiral splay nematic mode liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a gate line and a data line on an inner surface of the first substrate; a thin film transistor connected to the gate line and the data line; a reflecting plate on the thin film transistor, the reflecting plate including an embossing pattern; a first passivation layer including a flat top surface on the reflecting plate; a first electrode on the first passivation layer; a second passivation layer on the first electrode; at least one second electrode and at least one third electrode on the second passivation layer; a fourth electrode on an inner surface of the second substrate; and a liquid crystal layer including bi-stable chiral splay nematic liquid crystal molecules between the first and second substrates.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: February 18, 2014
    Assignee: LG Display Co., Ltd
    Inventors: Dong-Guk Kim, Wook-Sung Kim
  • Publication number: 20140009454
    Abstract: A method of driving a dual mode liquid crystal display device includes: applying a first horizontal electric field to the liquid crystal layer for a first duration time during a reset period of a memory mode, the first duration time longer than a frame; eliminating the first horizontal electric field and keeping the liquid crystal layer without the first horizontal electric field for a second duration time during the reset period of the memory mode; applying a first vertical electric field corresponding to a static image for a third duration time during a writing period of the memory mode, the third duration time longer than the frame; and eliminating the first vertical electric field and keeping the liquid crystal layer without the first vertical electric field for a fourth duration time during the writing period of the memory mode.
    Type: Application
    Filed: June 19, 2013
    Publication date: January 9, 2014
    Inventors: Joong-Ha LEE, Dong-Guk KIM
  • Patent number: 8576361
    Abstract: A transflective liquid crystal display device and a fabricating method thereof are disclosed in the present invention. The transflective liquid crystal display device includes a substrate having a reflective portion and a transmissive portion, a gate line on the substrate, a data line crossing the gate line and defining a pixel region, a thin film transistor connected to the gate line and the data line, a first organic material layer in the pixel region, the first organic material layer having a plurality of uneven patterns at the reflective portion, a second organic material layer on the first organic material layer, the second organic material layer having an open portion at the transmissive portion, and a reflective layer on the second organic material layer having a transmissive hole at the open portion.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: November 5, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Sook Nam, Dong-Guk Kim
  • Patent number: 8427616
    Abstract: A bistable chiral splay nematic mode liquid crystal display device including a first substrate; a first electrode on the first substrate, the first electrode having a plate shape; a first insulating layer covering the first electrode; a second electrode and a third electrode on the first insulating layer along a first direction; a second substrate facing the first substrate; a fourth electrode on the second substrate, the fourth electrode having a plate shape; a second insulating layer covering the fourth electrode; a fifth electrode and a sixth electrode on the second insulating layer along a second direction; and a bistable chiral splay nematic liquid crystal layer between the first substrate and the second substrate.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: April 23, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Guk Kim, Wook-Sung Kim, Dong-Jin Kim, Jae-Chang Kim, Joong-Ha Lee
  • Patent number: 8399182
    Abstract: A method of fabricating a transflective type liquid crystal display device includes: forming gate and data lines with a gate insulating layer therebetween on a substrate and crossing each other to define a pixel region that includes a switching region, a reflective region, and a transmissive region; forming a thin film transistor corresponding to the switching region and connected to the gate and data lines; forming a first passivation layer on the thin film transistor; forming a reflective plate on the first passivation layer in the reflective region; forming a second passivation layer on the reflective plate; forming a pixel electrode on the second passivation layer and connected to a drain electrode of the thin film transistor; forming a third passivation layer on the pixel electrode.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: March 19, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Hyung Lim, Dong-Guk Kim, Jong-Hwae Lee
  • Publication number: 20130063672
    Abstract: A method of manufacturing an LCD device includes providing a lower substrate including a first substrate on which a thin film transistor, a pixel electrode, and a common electrode are formed, and forming a first light alignment layer on the first substrate that is light aligned in a ultraviolet (UV) irradiation process; providing an upper substrate including a second substrate on which a color filter and a black matrix are formed, and forming a second light alignment layer on the second substrate that is light aligned in the UV irradiation process; providing a light polymerization compound between the lower substrate and upper substrate; and forming an alignment assistant layer between a liquid crystal layer and the first and second light alignment layers by performing a front UV irradiation process on the upper substrate and lower substrate which are coupled to each other with the liquid crystal layer therebetween.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 14, 2013
    Inventors: Dong Guk KIM, Kazuhiko Tamai
  • Patent number: 8395739
    Abstract: An in-plane-switching mode liquid crystal display device is disclosed. The LCD device includes: first and second substrates opposite to each other; a liquid crystal layer interposed between the first and second substrates; a passivation film formed on the first substrate in which a thin film transistor is disposed; pixel and common electrodes arranged alternately with each other; and a first alignment film formed on the pixel and common electrodes. The liquid crystal layer and the passivation film are formed to have lower non-resistances than that of the first alignment film.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: March 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Han Shin Hwang, Joung Won Woo, Dong Guk Kim, Woo Keun Lee, Han Jin Ahn