Patents by Inventor Jung-Hwan Choi

Jung-Hwan Choi 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: 10578940
    Abstract: A display device includes: a display panel in which a plurality of pixels are arranged; a plurality of gate lines disposed in the display panel and transmitting a gate signal to the plurality of pixels; a gate driver disposed in the display panel and including a plurality of stages for generating the gate signal and outputting the gate signal to the plurality of gate lines; and a plurality of clock signal lines disposed in the display panel and transmitting a clock signal to the plurality of stages. Each stage of the plurality of stages includes a clock signal terminal connected to one of the plurality of clock signal lines to receive the clock signal, a first output terminal connected to a corresponding gate line to output the gate signal, and a first transistor and a second transistor connected to the first output terminal.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: March 3, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chan Wook Shim, Jung Hwan Hwang, Jae-Jin Song, Kook Hyun Choi
  • Publication number: 20200067088
    Abstract: A negative electrode active material as well as a method of preparing a negative electrode active material which includes preparing a silicon-based compound including SiOx, wherein 0.5<x<1.3; disposing a polymer layer including a polymer compound on the silicon-based compound; disposing a metal catalyst layer on the polymer layer; heat treating the silicon-based compound on which the polymer layer and the metal catalyst layer are disposed; and removing the metal catalyst layer, wherein the polymer compound includes any one selected from the group consisting of glucose, fructose, galactose, maltose, lactose, sucrose, a phenolic resin, a naphthalene resin, a polyvinyl alcohol resin, a urethane resin, polyimide, a furan resin, a cellulose resin, an epoxy resin, a polystyrene resin, a resorcinol-based resin, a phloroglucinol-based resin, a coal-derived pitch, a petroleum-derived pitch, a tar and a mixture of two or more thereof.
    Type: Application
    Filed: November 1, 2019
    Publication date: February 27, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Dong Hyuk KIM, Eun Kyung KIM, Yong Ju LEE, Rae Hwan JO, Jung Hyun CHOI
  • Publication number: 20200066437
    Abstract: A magnetic composition includes first, second, and third magnetic metal particles. The first magnetic metal particles have an average particle size of 10 ?m to 28 ?m; the second magnetic metal particles have an average particle size of 1 ?m to 4.5 ?m; and the third magnetic metal particles include insulating layers disposed on surfaces thereof and have a particle size of 300 nm or less. Therefore, eddy current loss of an inductor having a body formed of the magnetic composition may be improved, and high efficiency and inductance of the inductor may be secured.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 27, 2020
    Inventors: Se Hyung LEE, Je Ik MOON, Jung Wook SEO, Jun Sung LEE, Woo Jin LEE, Kang Ryong CHOI, Il Jin PARK, Gwang Hwan HWANG
  • Patent number: 10573401
    Abstract: A memory device includes a plurality of receivers that each include a first input terminal coupled to one pin of a plurality of input/output pins. The memory devices further includes a transmitter having an output terminal coupled to the first input terminals of the plurality of receivers. The memory device further includes a control circuit configured to control the transmitter to output a particular test signal. The plurality of receivers are each configured to generate output data based on receiving the particular test signal from the transmitter. The control circuit is further configured to adjust the plurality of receivers based on the output data generated by the plurality of receivers and received at the control circuit from the plurality of receivers.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: February 25, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Seok Heo, Jung Hwan Choi, Wang Soo Kim, Yoo Chang Sung, Jun Ha Lee, Ju Ho Jeon
  • Patent number: 10564792
    Abstract: A display device with a touch screen, which executes at least one application and a method for controlling the display device are provided. The method includes receiving an application execution command to execute at least one application, determining at least one of a size and a position of a window that executes the at least one application according to a position at which the application execution command is input, and displaying the window according to the at least one of the size and position of the window.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: February 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Jin Kim, Kang-Tae Kim, Dae-Wook Park, Tae-Soo Kim, Jung-Hwan Choi, Sung-Hee Kim
  • Patent number: 10561688
    Abstract: The present invention relates to a method of preparing vascular endothelial cells by transforming (transdifferentiating) adult fibroblasts and a composition, which includes vascular endothelial cells prepared according to the method, for preventing and treating ischemic diseases, the method including a step of transducing adult fibroblasts with a gene. In particular, the present invention confirms that five factors, Foxo1, Er71, Klf2, Tal1, and Lmo2, induce transdifferentiation of adult fibroblasts into induced vascular endothelial cells. Furthermore, the present invention confirms that three factors, Er71, Klf2, and Tal1 induce transdifferentiation of human adult fibroblasts into induced vascular endothelial cells. The resultant induced endothelial cells enable lower limb salvaging by angiogenesis in lower limb ischemic animal models, showing that the induced endothelial cells can be effectively used for prevention or treatment of ischemic diseases.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: February 18, 2020
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Hyo-Soo Kim, Jung-Kyu Han, Sung-Hwan Chang, Hyun-Ju Cho, Saet-Byeol Choi, Youngchul Shin
  • Patent number: 10566038
    Abstract: A method of controlling on-die termination (ODT) in a multi-rank system including a plurality of memory ranks is provided. The method includes: enabling ODT circuits of the plurality of memory ranks into an initial state when the multi-rank system is powered on; enabling the ODT circuits of a write target memory rank and non-target memory ranks among the plurality of memory ranks during a write operation; and disabling the ODT circuit of a read target memory rank among the plurality of memory ranks while enabling the ODT circuits of non-target memory ranks among the plurality of memory ranks during a read operation.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Hoon Son, Si-Hong Kim, Chang-Kyo Lee, Jung-Hwan Choi, Kyung-Soo Ha
  • Patent number: 10566968
    Abstract: An output driver includes a pre-driver receiving a driver control code to generate a pull-up control signal or a pull-down control signal in response to data while a read operation is performed, an on-die termination controller receiving a first on-die termination control code to generate a first on-die termination control signal in response to an on-die termination enable signal while a write operation is performed, and a main driver including a pull-up n-channel metal-oxide-semiconductor (NMOS) driver generating high-level output data in response to the pull-up control signal while the read operation is performed, and terminating high-level input data with a first high voltage and terminating low-level input data with a first low voltage in response to the first on-die termination control signal while the write operation is performed, and a pull-down NMOS driver generating low-level output data in response to the pull-down control signal while the read operation is performed.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Hoon Son, Jung Hwan Choi, Seok Hun Hyun
  • Patent number: 10564843
    Abstract: A method of displaying for allowing a plurality of application windows to be easily controlled and a display device therefor are provided. A method of displaying a screen on a display device includes displaying a button on a touch screen; splitting the touch screen into a plurality of regions based on the position at which the button is displayed, receiving a touch input to move a displayed button, obtaining a slope value of a line connecting a start point of the touch input to an end point thereof, selecting a region corresponding to the slope value from among the plurality of regions split, and moving the button to a certain position included in a selected region.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: February 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-hwan Choi, Young-jin Kim, Tae-soo Kim, Kang-tae Kim, Tae-hyung Kim
  • Publication number: 20200050339
    Abstract: The present disclosure provides a display device configured to float a display electrode coupled to a touch sensor by a parasitic capacitance when a downlink signal is received from a touch pen to the touch sensor.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 13, 2020
    Inventors: Jung Min Choi, Kyung Hwan Kim, Jae Duck Kim
  • Patent number: 10558078
    Abstract: A polarizing layer includes a substrate and a plurality of parallel wires disposed on the substrate. Each of the plurality of wires includes a base layer disposed on the substrate and an anti-reflective layer disposed on the base layer. The base layer includes aluminum or an aluminum alloy. The anti-reflective layer has a thickness within a range of 12 nm to 40 nm.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 11, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung In Baek, Hyun Eok Shin, Su Jin Choi, Sang Gab Kim, Ji Hun Kim, Hyeon Hwan Kim, Jung Gun Nam, Young Eun Park, Joon Yong Park, Jin Ho Park, Gyung Min Baek, Yun Jong Yeo, Gug Rae Jo, Hyun Ji Ha, Youn Ho Han
  • Publication number: 20200044259
    Abstract: The present invention relates to a paper current collector, a method of manufacturing the same, and an electrochemical device including the same. Since a paper current collector according to the present invention includes a conductive layer which includes a conductive material forming a conductive network with nanocellulose fiber on a fiber layer including the nanocellulose fiber, there are advantages in that a weight is low, an energy density of an electrode is high when the electrode is manufactured, mechanical flexibility is superior, and electrical properties and transparency of a material may also be secured.
    Type: Application
    Filed: December 6, 2016
    Publication date: February 6, 2020
    Applicant: National Institute Of Forest Science
    Inventors: Sun Young Lee, Sang Young Lee, Jung Hwan Kim, Sang Jin Chun, Sang Bum Park, Don Ha Choi
  • Publication number: 20200044645
    Abstract: An output driver includes a pre-driver receiving a driver control code to generate a pull-up control signal or a pull-down control signal in response to data while a read operation is performed, an on-die termination controller receiving a first on-die termination control code to generate a first on-die termination control signal in response to an on-die termination enable signal while a write operation is performed, and a main driver including a pull-up n-channel metal-oxide-semiconductor (NMOS) driver generating high-level output data in response to the pull-up control signal while the read operation is performed, and terminating high-level input data with a first high voltage and terminating low-level input data with a first low voltage in response to the first on-die termination control signal while the write operation is performed, and a pull-down NMOS driver generating low-level output data in response to the pull-down control signal while the read operation is performed.
    Type: Application
    Filed: March 20, 2019
    Publication date: February 6, 2020
    Inventors: YOUNG HOON SON, JUNG HWAN CHOI, SEOK HUN HYUN
  • Patent number: 10553135
    Abstract: A flexible display panel of an expandable display device includes a first side with a display unit, and a second side opposite to the first side. A bending guide includes an external guide that faces part of the first side and has a first curved side, and an internal guide that faces part of the second side and has a second curved side. A slider that slides on the bending guide is attached to one end portion of the flexible display panel. A radius of the first curved side is greater than a radius of the second curved side. When the slider moves toward the bending guide, the first side contacts the first curved side and is bent by the first curved side, and when the slider moves away from the bending guide, the second side contacts the second curved side and is bent by the second curved side.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hun Lee, Sun Ho Kim, Young-Seok Seo, Tae An Seo, Jin Hwan Choi
  • Patent number: 10547731
    Abstract: A method and electronic device are disclosed herein. The electronic device includes a display, a communication unit, a processor and a memory storing instructions. The process executes the instructions to implement the method, including establishing wireless communication with one or more IoT devices, displaying a user interface for managing IoT devices, receiving a user input selecting a group of IoT devices, transmitting first information including user account data to an external server, transmitting second information to another device, the first information also indicating a selected group of IoT devices, and the second information causing the other device to communicatively connect with the first external server.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: January 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Jin Kim, Tae Jun Kim, Hae Na Kim, Yoe Chan Song, Jung Hwan Song, Sung Yeon Woo, Joon Hwan Lee, Pyo Je Cho, Han Jib Kim, Gyu Cheol Choi, Bo Kun Choi
  • Publication number: 20200029448
    Abstract: A display device including: a display panel configured to display an image; and a winder configured to fix a first end portion of the display panel thereinto, wherein the winder includes a first fixing portion including a first external surface which is curved, and a second fixing portion that includes a second external surface which is curved and that faces the first external surface, wherein the first end portion of the display panel may be interposed between the first external surface and the second external surface.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Inventors: MIN-SUNG KIM, TAE AN SEO, JUNG HUN LEE, JIN HWAN CHOI
  • Patent number: 10541401
    Abstract: A separator for a rechargeable lithium battery includes a substrate, an organic layer positioned on at least one side of the substrate and including an organic material and an inorganic layer positioned on at least one side of the substrate and including an inorganic material, wherein the organic material includes two or more kinds of organic particles having different particle sizes from each other.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: January 21, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Eon-Mi Lee, Jong-Hwan Park, Jung-Hyun Nam, Yeon-Joo Choi, Hoon Seok, Ae-Hui Goh
  • Patent number: 10534483
    Abstract: The present invention relates to a touch panel and, more particularly, to a touch panel capable of improving electrical conductive characteristics of the touch panel, reducing the size of the touch panel, improving the visibility of the touch panel, and minimizing damage to a substrate when a failure test is performed on the touch panel.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: January 14, 2020
    Assignee: LG Innotek Co., Ltd.
    Inventors: Jin Woong Lee, Byung Youl Moon, Jung Hwan Bang, Kwang Yong Jin, Yong Jae Choi
  • Patent number: 10528222
    Abstract: Disclosed is a method for executing at least one application by a display device having a touch screen. An application execution method according to the present invention may include the steps of: displaying a window for executing an application in each of a plurality of areas arranged on a touch screen; displaying a button on at least one boundary line dividing the plurality of areas; receiving an input for selecting the button; and displaying, in a predetermined area, on the basis of the received input, a list of at least one application executed in the predetermined area among the plurality of areas.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: January 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-wook Park, Young-jin Kim, Jae-yeol Lee, Tae-soo Kim, Jung-hwan Choi, Kang-tae Kim
  • Patent number: 10529972
    Abstract: A separator for a rechargeable lithium battery includes a substrate; an organic layer on at least one side of the substrate and including an organic material; and an inorganic layer on at least one side of the substrate and including an inorganic material, where the organic material includes two or more organic particles having respective melting points that are different from each other. A rechargeable lithium battery includes the separator.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: January 7, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hoon Seok, Jong-Hwan Park, Jung-Hyun Nam, Eon-Mi Lee, Yeon-Joo Choi, Ae-Hui Goh