Patents by Inventor Chang-Oh Kim

Chang-Oh 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: 10707436
    Abstract: The present disclosure relates to an illumination device which is realized by an organic light emitting element having a plurality of stacks and which achieves an improvement in relation to the efficiency difference among wavelengths by changing a light emitting layer structure of a predetermined stack.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: July 7, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Jin-A You, Chang-Oh Kim, Jae-Min Moon, Ju-Hyuk Kwon
  • Patent number: 10535802
    Abstract: The purpose of the present invention is to provide a method for manufacturing a light-amplified optoelectronic device, on which pristine or doped graphene is transferred. Specifically, the method includes the steps of: depositing a first electrode, as a thin film, on the light emitting device; transferring pristine or doped graphene on the electrode thin film; etching the light emitting device in contact with the electrode thin film on which the transferred graphene has been transferred, thereby removing a part of the electrode thereon; spin-coating photoresist on the etched light emitting device; removing the photoresist from the spin-coated light emitting device, thereby forming an electrode thin film in a spin form and the pristine transferred to or graphene doped to the electrode thin film; and depositing metal on a second electrode.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 14, 2020
    Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Suk Ho Choi, Chang Oh Kim, Sung Kim
  • Patent number: 10428451
    Abstract: The present invention relates to a washing machine. A washing machine according to an embodiment of the present invention comprises: a casing for forming the exterior; a tub arranged inside the casing; a drum rotatably provided in the tub to contain laundry; and a water supply/distribution device arranged inside the casing, the water supply/distribution device having a temporary space, in which water flowing in from the outside gathers, a plurality of discharge ports for distributing the water in the temporary space towards a plurality of locations, and a pressure limiting unit for limiting the rise of water pressure in the temporary space.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: October 1, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Bo Sung Seo, Jin Ho Kim, Soo Young Oh, Chang Oh Kim
  • Publication number: 20190181369
    Abstract: The present disclosure relates to an illumination device which is realized by an organic light emitting element having a plurality of stacks and which achieves an improvement in relation to the efficiency difference among wavelengths by changing a light emitting layer structure of a predetermined stack.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 13, 2019
    Inventors: Jin-A YOU, Chang-Oh KIM, Jae-Min MOON, Ju-Hyuk KWON
  • Publication number: 20180114881
    Abstract: The purpose of the present invention is to provide a method for manufacturing a light-amplified optoelectronic device, on which pristine or doped graphene is transferred. Specifically, the method includes the steps of: depositing a first electrode, as a thin film, on the light emitting device; transferring pristine or doped graphene on the electrode thin film; etching the light emitting device in contact with the electrode thin film on which the transferred graphene has been transferred, thereby removing a part of the electrode thereon; spin-coating photoresist on the etched light emitting device; removing the photoresist from the spin-coated light emiting device, thereby forming an electrode thin film in a spin form and the pristine transferred to or graphene doped to the electrode thin film; and depositing metal on a second electrode.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 26, 2018
    Inventors: Suk Ho Choi, Chang Oh Kim, Sung Kim
  • Patent number: 9689104
    Abstract: A system including an enclosure of a washing machine, a drum within the enclosure, a mixing unit, within the enclosure but separate from the drum and in fluid communication with the drum, a water supply unit coupled to the mixing unit, a reservoir having a conduit fluidly coupled to the mixing unit, and a container connecting assembly configured to fix a spout of a container to the reservoir. An apparatus including a reservoir, external to a washing machine, to receive a liquid wash aid, a container connecting assembly coupled to the reservoir and configured to fix a spout of a container containing liquid wash aid to the reservoir, a flexible conduit to pass liquid wash aid from the reservoir to the washing machine, and a wash aid control unit connected to the flexible conduit and adapted to meter a flow of liquid wash aid from the reservoir to the washing machine.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: June 27, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jong Min Lee, Young Ho Kim, Jae Won Chang, Sang Hoon Lee, Chang Oh Kim, Jae Hyun Kim
  • Patent number: 9546443
    Abstract: Disclosed are a washing machine and a control method thereof. The control method of the washing machine, including two or more balancing units which are independently movable, includes sensing the weight of laundry to be washed while identically maintaining a phase difference between the two or more balancing units and rotating a drum, and reducing eccentricity of the drum while moving at least one of the two or more balancing units simultaneously with rotation of the drum.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: January 17, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Soo Lee, Chang Oh Kim
  • Publication number: 20160351738
    Abstract: Provided is a graphene photodetector. The graphene photodetector comprises a first graphene, a graphene quantum dot (GQD) layer formed on the first graphene and including a plurality of GQDs and a second graphene provided on the GQD layer.
    Type: Application
    Filed: July 3, 2013
    Publication date: December 1, 2016
    Inventors: Suk Ho Choi, Sung Kim, Chang Oh Kim, Dong Hee Shin
  • Patent number: 9343601
    Abstract: Provided is a photodetector including a graphene p-n homogeneous vertical-junction diode by evaluating photodetection characteristics of the manufactured graphene p-n vertical junction according to the amount of doping. The photodetector comprises a substrate and graphene having a p-n homogeneous vertical junction as a photodetection layer formed on the substrate, wherein the photodetection layer has a detectability of 10E11 (Jones) or higher within the range of 350 nm to 1100 nm, and first and second electrodes are formed on the photodetection layer.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: May 17, 2016
    Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Suk Ho Choi, Sung Kim, Chang Oh Kim
  • Publication number: 20160122935
    Abstract: The present invention relates to a washing machine. A washing machine according to an embodiment of the present invention comprises: a casing for forming the exterior; a tub arranged inside the casing; a drum rotatably provided in the tub to contain laundry; and a water supply/distribution device arranged inside the casing, the water supply/distribution device having a temporary space, in which water flowing in from the outside gathers, a plurality of discharge ports for distributing the water in the temporary space towards a plurality of locations, and a pressure limiting unit for limiting the rise of water pressure in the temporary space.
    Type: Application
    Filed: June 11, 2014
    Publication date: May 5, 2016
    Inventors: Bo Sung SEO, Jin Ho KIM, Soo Young OH, Chang Oh KIM
  • Publication number: 20160056340
    Abstract: The purpose of the present invention is to provide a method for manufacturing a light-amplified optoelectronic in device, on which pristine or doped graphene is transferred. Specifically, the method includes the steps of: depositing a first electrode, as a thin film, on the light emitting device; transferring pristine or doped graphene on the electrode thin film; etching the light emitting device in contact with the electrode thin film on which the transferred graphene has been transferred, thereby removing a part of the electrode thereon; spin-coating photoresist on the etched light emitting device; removing the photoresist from the spin-coated light emitting device, thereby forming an electrode thin film in a spin form and the pristine transferred to or graphene doped to the electrode thin film; and depositing metal on a second electrode.
    Type: Application
    Filed: June 21, 2013
    Publication date: February 25, 2016
    Inventors: Suk Ho Choi, Chang Oh Kim, Sung Kim
  • Publication number: 20150357485
    Abstract: Provided is a photodetector including a graphene p-n homogeneous vertical-junction diode by evaluating photodetection characteristics of the manufactured graphene p-n vertical junction according to the amount of doping. The photodetector comprises a substrate and graphene having a p-n homogeneous vertical junction as a photodetection layer formed on the substrate, wherein the photodetection layer has a detectability of 10E11 (Jones) or higher within the range of 350 nm to 1100 nm, and first and second electrodes are formed on the photodetection layer.
    Type: Application
    Filed: June 27, 2013
    Publication date: December 10, 2015
    Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Suk Ho CHOI, Sung KIM, Chang Oh KIM
  • Patent number: 9159957
    Abstract: A white organic light emitting device which has high color temperature characteristics and no change in color coordinates according to luminance change, includes a first electrode and a second electrode opposite to each other on a substrate, a charge generation layer formed between the first electrode and the second electrode, a second stack including a second light emitting layer formed between the charge generation layer and the second electrode, and a first stack including a first light emitting layer formed between the first electrode and the charge generation layer, wherein the first emitting layer has low singlet-triplet exchange energy to change triplet excitons into a singlet state by triplet-triplet annihilation and a dopant concentration of the first light emitting layer is adjusted according to a luminance change curve of the second stack.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: October 13, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Sung-Hoon Pieh, Chang-Oh Kim, Ki-Woog Song
  • Patent number: 8963127
    Abstract: A white organic light emitting device having a dual stack structure is disclosed, in which an electron transport layer adjacent to a blue light emitting layer includes an electron transport catalyst layer including metal to improve blue light emitting efficiency, and a greenish yellow dopant is used to improve white display efficiency, increase lifespan, and reduce power consumption.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: February 24, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Sung-Hoon Pieh, Chang-Oh Kim
  • Patent number: 8915094
    Abstract: A bypass device of a refrigerator connected to an inrush current preventing device bypasses an input power when the input power is applied to the refrigerator, and a controller controls the input power input through the inrush current preventing device in response to a voltage measured by a voltage measuring device, recovers a function of the inrush current preventing device, and drives a compressor. Therefore, a standby time to re-drive the refrigerator is decreased and convenience is enhanced.
    Type: Grant
    Filed: March 29, 2008
    Date of Patent: December 23, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jae Yoo Yoo, Chang Oh Kim
  • Publication number: 20140041418
    Abstract: A system including an enclosure of a washing machine, a drum within the enclosure, a mixing unit, within the enclosure but separate from the drum and in fluid communication with the drum, a water supply unit coupled to the mixing unit, a reservoir having a conduit fluidly coupled to the mixing unit, and a container connecting assembly configured to fix a spout of a container to the reservoir. An apparatus including a reservoir, external to a washing machine, to receive a liquid wash aid, a container connecting assembly coupled to the reservoir and configured to fix a spout of a container containing liquid wash aid to the reservoir, a flexible conduit to pass liquid wash aid from the reservoir to the washing machine, and a wash aid control unit connected to the flexible conduit and adapted to meter a flow of liquid wash aid from the reservoir to the washing machine.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 13, 2014
    Applicant: LG Electronics Inc.
    Inventors: Jong Min LEE, Young Ho KIM, Jae Won CHANG, Sang Hoon LEE, Chang Oh KIM, Jae Hyun KIM
  • Patent number: 8555678
    Abstract: A system including an enclosure of a washing machine, a drum within the enclosure, a mixing unit, within the enclosure but separate from the drum and in fluid communication with the drum, a water supply unit coupled to the mixing unit, a reservoir having a conduit fluidly coupled to the mixing unit, and a container connecting assembly configured to fix a spout of a container to the reservoir. An apparatus including a reservoir, external to a washing machine, to receive a liquid wash aid, a container connecting assembly coupled to the reservoir and configured to fix a spout of a container containing liquid wash aid to the reservoir, a flexible conduit to pass liquid wash aid from the reservoir to the washing machine, and a wash aid control unit connected to the flexible conduit and adapted to meter a flow of liquid wash aid from the reservoir to the washing machine.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: October 15, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jong Min Lee, Young Ho Kim, Jae Hyun Kim, Jae Won Chang, Sang Hoon Lee, Chang oh Kim
  • Patent number: 8528353
    Abstract: There are provided a refrigerator and a method of controlling the same. The method of controlling a refrigerator includes varying stroke of an inverter linear compressor to operate the inverter linear compressor by a maximum output when a temperature of an inside of a freezer compartment or a refrigerator compartment is higher than a maximum output temperature and varying the stroke of the inverter linear compressor at one period interval to operate the inverter linear compressor when the temperature of the inside of the freezer compartment or the refrigerator compartment is no more than the maximum output temperature.
    Type: Grant
    Filed: January 26, 2008
    Date of Patent: September 10, 2013
    Assignee: LG Electronics Inc.
    Inventors: Ji Won Sung, Chan Ho Chun, Chang Oh Kim
  • Patent number: 8464560
    Abstract: A washing machine and associated washing method are provided. The washing machine may include a cabinet, a drum rotatably installed in the cabinet, and a spray nozzle provided inside the cabinet to spray washing fluid into the drum. A spraying direction of the spray nozzle may be varied based on a rotation direction of the drum to improve washing performance of the washing machine.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: June 18, 2013
    Assignee: LG Electronics Inc.
    Inventors: Woo Young Kim, Soo Young Oh, Chang Oh Kim, Kyeong Hwan Kim, Jae Won Chang, Kyung Chul Woo, Byung Keol Choi, Myong Hun Im
  • Patent number: 8421341
    Abstract: An electroluminescent device includes: first to third pixel regions; a first electrode in each of the first to third pixel regions, wherein the first electrode of the third pixel region has a first thickness, the first electrode of the first pixel region has a second thickness less than the first thickness, and the first electrode of the second pixel region has a third thickness less than the second thickness; a second electrode in each of the first to third pixel regions; at least two electroluminescent units in each of the first and third pixel regions and disposed between the first electrode and second electrode, wherein one of the at least two electroluminescent units includes a blue light emitting layer and the other of the at least two electroluminescent units include a red/green light emitting layer; and a charge generation layer disposed between the at least two electroluminescent units.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: April 16, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Oh Kim, Hwa-Kyung Kim, Sung-Hoon Pieh