Patents by Inventor Do-hwan Kim

Do-hwan 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: 8816330
    Abstract: An organic composition for a semiconductor device includes a compound for an organic semiconductor device including a structural unit; and a metal-containing compound selected from a transition element-containing compound, a lanthanide-containing compound, and a combination thereof, which results in improved charge mobility due to a reduced grain boundary.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: August 26, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong Won Chung, Do-Hwan Kim, Bang Lin Lee, Jeong il Park, Yong Wan Jin, Sang Yoon Lee
  • Patent number: 8809839
    Abstract: An organic semiconductor polymer, a transistor including an organic semiconductor polymer and methods of fabricating the same are provided, the organic semiconductor polymer including an aromatic or heteroaromatic main chain and at least one of a fluoro or a perfluoroalkyl at a polymer terminal end.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: August 19, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bang-Lin Lee, Do-Hwan Kim, Jeong-il Park, Ji-Youl Lee
  • Patent number: 8680755
    Abstract: A lighting device may be provided that includes: a heat sink which includes a base and a member extending from the base; a light source module which is disposed on a lateral surface of the member; and a reflector which is disposed on the member and has a disposition recess exposing the light source module, wherein the at least two light source modules are provided and the light source module includes a terminal plate which electrically connects the at least two light source modules, and wherein the terminal plate is disposed on the reflector.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: March 25, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Dong Nyung Lim, Tae Young Choi, Do Hwan Kim, Cheon Joo Kim
  • Patent number: 8679984
    Abstract: An example embodiment relates to a method of manufacturing an array of electric devices that includes attaching a platform including a micro-channel structure to a substrate. The method includes injecting first and second solutions into the micro-channel structure to form at least three liquid film columns, where the first and second solutions include different solvent composition ratios and the liquid columns each, respectfully, include different solvent composition ratios. The method further includes detaching the platform the substrate, removing solvent from the liquid film columns to form thin film columns, and treating the thin film columns under different conditions along a length direction of the thin film columns. The solvent is removed from the thin film columns and the thin film columns are treated under different conditions along a length direction of the thin film columns.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 25, 2014
    Assignees: Samsung Electronics Co., Ltd., The United States of America as represented by the National Institutes of Health (NIH), The United States of America as represented by the Dept. of Health and Human Services (DHHS)
    Inventors: Jong Won Chung, Christopher J. Bettinger, Zhenan Bao, Do Hwan Kim, Bang Lin Lee, Jeong Il Park, Yong Wan Jin, Sang Yoon Lee
  • Publication number: 20140077687
    Abstract: There is provided a red phosphor including a compound represented by an empirical formula Az(Sr, M)2(Si, Al)O4-xNy (0<x<3, y=2x/3, and 0.001<z<0.1), and has a grain size distribution corresponding to 6.9 ?m?D50?13.9 ?m, wherein A is at least one element selected from a group consisting of lithium (Li), potassium (K) and sodium (Na), and M is at least one element selected from a group consisting of Barium (Ba), magnesium (Mg) and calcium (Ca).
    Type: Application
    Filed: May 18, 2012
    Publication date: March 20, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Do-Hwan Kim, Sang-Hyun Kim, Chul-Soo Yoon
  • Patent number: 8617709
    Abstract: Disclosed herein is a functionalized metal nanoparticle, a buffer layer including the functionalized metal nanoparticle, and an electronic device including the buffer layer. The buffer layer including the functionalized metal nanoparticle according to example embodiments may improve the injection of electrons or holes and the charge mobility between layers in the electronic device, may form ohmic contacts, and may improve the selectivity between electrodes and the buffer layer at the time of forming the buffer layer on the electrodes, thereby improving the efficiency of the electronic device.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: December 31, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun Sik Moon, Jong Jin Park, Bon Won Koo, Jung Seok Hahn, Do Hwan Kim
  • Publication number: 20130293084
    Abstract: A lighting device may be provided that includes: a heat sink which includes a base and a member extending from the base; a light source module which is disposed on a lateral surface of the member; and a reflector which is disposed on the member and has a disposition recess exposing the light source module, wherein the at least two light source modules are provided and the light source module includes a terminal plate which electrically connects the at least two light source modules, and wherein the terminal plate is disposed on the reflector.
    Type: Application
    Filed: January 10, 2013
    Publication date: November 7, 2013
    Inventors: Dong Nyung Lim, Tae Young Choi, Do Hwan Kim, Cheon Joo Kim
  • Publication number: 20130248909
    Abstract: Provided is a red phosphor having superior thermal and chemical stability and excellent luminous efficiency, wherein the red phosphor comprises a compound expressed in the composition formula: Az(Sr, M)2(Si, Al)O4?xNy:R(0<x<3, y=2x/3, 0.001<z<0.1), where A is at least one element selected from a group consisting of lithium (Li), potassium (K) and sodium (Na), M is at least one element selected from a group consisting of barium (Ba), magnesium (Mg), and calcium (Ca), and R is at least one element selected from a group consisting of lanthanide and a transition metal element.
    Type: Application
    Filed: September 20, 2011
    Publication date: September 26, 2013
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Do Hwan Kim, Jeong Ho Ryu, Sang Hyun Kim, Chul Soo Yoon
  • Patent number: 8476682
    Abstract: An example embodiment of the image sensor includes a light-sensing device including a first electrode, a second electrode disposed opposite to the first electrode, and a photoelectric conversion layer positioned between the first electrode and the second electrode. The photoelectric conversion layer includes a block copolymer including electron donating blocks and electron accepting blocks. The electron donating blocks are deposited together and connected to the first electrode and the second electrode. The electron accepting blocks are deposited together and connected to the first electrode and the second electrode. A color filter may be positioned on the second electrode of the light-sensing device.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: July 2, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do Hwan Kim, Woong Choi, Kyung Bae Park, Kyu Sik Kim, Yong Wan Jin, Kwang Hee Lee
  • Publication number: 20130100674
    Abstract: A lighting device may be provided to include a heat sink which includes a receiving recess and a top surface including a hole; a light source module which includes a substrate disposed on the heat sink, a light emitting device disposed on the substrate and a pad disposed on the substrate; a power supplier which is disposed in the receiving recess of the heat sink and includes a projection outputting a power signal for driving the light source module; and a connector which is coupled to the hole of the heat sink, includes a contacting part electrically connected to the pad of the light source module, and is electrically connected to the projection of the power supplier.
    Type: Application
    Filed: July 6, 2012
    Publication date: April 25, 2013
    Inventors: Ji Hoo Kim, Tae Young Choi, Do Hwan Kim, Sung Ku Kang, Chan Hyung Jung
  • Patent number: 8395687
    Abstract: A method for operating image sensors is provided. The method for operating image sensors includes maintaining a charge transmission unit which transfers charges generated in a photoelectric conversion unit by responding to incident light to a charge detection unit in an inactive state; and toggling the charge transmission unit between an active state and an inactive state while a reset unit resets the charge detection unit, wherein the toggling is repeated multiple times while a reset unit which resets the charge detection unit is maintained in active state.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: March 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yu-Yeon Yu, Seok-Ha Lee, Do-Hwan Kim
  • Patent number: 8373158
    Abstract: Disclosed is a surface modifying agent including a compound having an ethynyl group at one terminal end, a laminated structure manufactured using the surface modifying agent, a method of manufacturing the laminated structure, and a transistor including the same.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: February 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-il Park, Byung-wook Yoo, Do-hwan Kim, Sang-yoon Lee, Bang-lin Lee, Eun-jeong Jeong
  • Patent number: 8373161
    Abstract: Disclosed herein are a method for fabricating an organic thin film transistor, including treating the surfaces of a gate insulating layer and source/drain electrodes with a self-assembled monolayer (SAM)-forming compound through a one-pot reaction, and an organic thin film transistor fabricated by the method. According to example embodiments, the surface-treatment of the gate insulating layer and the source/drain electrodes may be performed in a single vessel through a single process.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: February 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do Hwan Kim, Hyun Sik Moon, Byung Wook Yoo, Sang Yoon Lee, Bang Lin Lee, Jeong Il Park, Eun Jeong Jeong
  • Patent number: 8354533
    Abstract: Example embodiments provide a nitrogen-containing heteroaromatic ligand-transition metal complex, a buffer layer including the complex, which may improve the injection and transport of electrical charges, an organic thin film transistor and an electronic device including the buffer layer, in which the injection of electrons or holes and the transport of charges between layers are accelerated, thereby improving the efficiency thereof, and methods of manufacturing the same.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 15, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun Sik Moon, Do Hwan Kim, Jong Jin Park, Jung Seok Hahn
  • Publication number: 20130001554
    Abstract: An example embodiment relates to a method of manufacturing an array of electric devices that includes attaching a platform including a micro-channel structure to a substrate. The method includes injecting first and second solutions into the micro-channel structure to form at least three liquid film columns, where the first and second solutions include different solvent composition ratios and the liquid columns each, respectfully, include different solvent composition ratios. The method further includes detaching the platform the substrate, removing solvent from the liquid film columns to form thin film columns, and treating the thin film columns under different conditions along a length direction of the thin film columns. The solvent is removed from the thin film columns and the thin film columns are treated under different conditions along a length direction of the thin film columns.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicants: The Board of Trustees of the Leland Stanford Junior University, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Won Chung, Christopher J. Bettinger, Zhenan Bao, Do Hwan Kim, Bang Lin Lee, Jeong il Park, Yong Wan Jin, Sang Yoon Lee
  • Patent number: 8331599
    Abstract: A speaker device for use in a mobile terminal includes a speaker frame with a speaker unit mounted therein, and a frame cover provided at the rear side of the speaker frame to form a resonance space between the speaker frame and the frame cover. Sound that is output in a forward direction of the speaker unit is emitted to a front space of the speaker frame, and sound that isoutput to the rear of the speaker unit is emitted through the resonance space. The speaker device provides the resonance space at the rear side of the speaker frame to reinforce the output of midrange and bass tones, thereby reproducing the original sound as accurately as possible. The speaker device enables a user to enjoy vivid sound when reproducing a multimedia file or viewing a digital, multimedia broadcast (DMB) program on a small-sized device, such as a mobile terminal.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: December 11, 2012
    Assignees: Samsung Electronics Co., Ltd., Kwangwon Tech Co., Ltd.
    Inventors: Heung-Sik Yun, Byeong-Kuk Lee, Joon-Woo Lim, Do-Hwan Kim
  • Publication number: 20120291857
    Abstract: According to example embodiments, an organic passivation layer composition includes a cross-linking agent and an oligomer or a polymer including structural units represented by the following Chemical Formulae 1 and 2: In Chemical Formulae 1 and 2, each substituent is defined in the detailed description.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 22, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo Young Kim, Myung-Sup Jung, Byong Gwon Song, Bon Won Koo, Byung Wook Yoo, Ji Youl Lee, Do Hwan Kim
  • Publication number: 20120261649
    Abstract: An example embodiment of the image sensor includes a light-sensing device including a first electrode, a second electrode disposed opposite to the first electrode, and a photoelectric conversion layer positioned between the first electrode and the second electrode. The photoelectric conversion layer includes a block copolymer including electron donating blocks and electron accepting blocks. The electron donating blocks are deposited together and connected to the first electrode and the second electrode. The electron accepting blocks are deposited together and connected to the first electrode and the second electrode. A color filter may be positioned on the second electrode of the light-sensing device.
    Type: Application
    Filed: September 2, 2011
    Publication date: October 18, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Do Hwan Kim, Woong Choi, Kyung Bae Park, Kyu Sik Kim, Yong Wan Jin, Kwang Hee Lee
  • Patent number: 8283038
    Abstract: A layered structure including graphene, wherein a basal plane of the graphene is a (0001) plane; and a layer including an organic material having a conjugated system disposed on the graphene, wherein the layer comprising the organic material layer having the conjugated system is bound to the (0001) plane of the graphene by a ?-? interaction, and a method of preparing the same.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: October 9, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-young Choi, Do-hwan Kim, Soo-ghang Ihn
  • Patent number: D666748
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: September 4, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventors: Ji Hoo Kim, Do Hwan Kim, Tae Young Choi, Ji Hoon Kim, Chan Hyung Jung