Patents by Inventor Joo Choi

Joo 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).

  • Method of manufacturing thin film transistor substrate having etched trenches with color filter material disposed therein
    Patent number: 9595548
    Abstract: A method of manufacturing a color filter substrate includes forming a plurality of trenches having a predetermined depth by etching a surface of a transparent substrate, disposing a color filter material in the plurality of trenches to form a color filter layer, and forming a transparent electrode on the transparent substrate including the color filter layer therein.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: March 14, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se-Hwan Yu, Byoung-Joo Kim, Hyang-Shik Kong, Kweon-Sam Hong, Yoon-Ho Kang, Young-Joo Choi
  • Rechargeable lithium battery
    Patent number: 9553293
    Abstract: A rechargeable lithium battery includes a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode. The separator includes a substrate having a first side facing the negative electrode and a second side facing the positive electrode. A first layer is positioned on the first side of the substrate and includes an organic material, and a second layer is positioned on the second side of the substrate and includes an inorganic material.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: January 24, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jung-Hyun Nam, Jong-Hwan Park, Yeon-Joo Choi, Eon-Mi Lee, Hoon Seok
  • RESIN BLEND (As Amended)
    Publication number: 20160376388
    Abstract: Disclosed are a resin blend, a copolymer, a pellet, a method of manufacturing a resin-molded article using the same, and a resin-molded article. The exemplary resin blend can be useful in providing a protective film for polarizing plates having excellent adhesive strength to a polarizer. Also, the resin blend can be useful in exhibiting excellent adhesive strength to the polarizer without performing an additional primer coating process on a surface(s) of the protective film for polarizing plate, thereby reducing production time and cost and improving productivity.
    Type: Application
    Filed: July 8, 2014
    Publication date: December 29, 2016
    Inventors: Eun Joo CHOI, Jin Young RYU, Jong Won LEE, Kyoung Hoon KIM, Hyeon CHOI
  • Multilayer ceramic capacitor, manufacturing method thereof and board for mounting the same thereon
    Patent number: 9520234
    Abstract: A multilayer ceramic capacitor and manufacturing method therefor, in which the capacitor includes a ceramic body including dielectric layers and internal electrodes; electrode layers connected to the internal electrodes; and a conductive resin layer formed on the electrode layers and including a first conductor, a second conductor having a fiber shape, and a base resin.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: December 13, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sim Chung Kang, Seung Hee Yoo, Jun Hyeong Kim, Eun Joo Choi, Kyu Ha Lee
  • Thin film transistor panel having an etch stopper on semiconductor
    Patent number: 9520412
    Abstract: A thin film transistor panel includes an insulating substrate, a gate insulating layer disposed on the insulating substrate, an oxide semiconductor layer disposed on the gate insulating layer, an etch stopper disposed on the oxide semiconductor layer, and a source electrode and a drain electrode disposed on the etch stopper.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: December 13, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Pil-Sang Yun, Ki-Won Kim, Hye-Young Ryu, Woo-Geun Lee, Seung-Ha Choi, Jae-Hyoung Youn, Kyoung-Jae Chung, Young-Wook Lee, Je-Hun Lee, Kap-Soo Yoon, Do-Hyun Kim, Dong-Ju Yang, Young-Joo Choi
  • Liquid crystal display and method of fabricating the same
    Patent number: 9496063
    Abstract: A liquid crystal display and a method of fabricating a liquid crystal display (LCD), the LCD including a substrate; gate wiring including a gate pad, a gate electrode, and a gate line, which are formed on the substrate; a gate insulating layer disposed on the gate wiring; an electrode pattern including a connecting electrode, which is disposed on the gate insulating layer and is electrically connected to the gate pad, a source electrode and a drain electrode, which partially overlap the gate electrode; a pixel electrode, which is electrically connected to the drain electrode; a data line, which intersects the gate line; a semiconductor layer disposed on the gate electrode; first auxiliary wiring overlapping the data line and spaced from the semiconductor layer; and second auxiliary wiring overlapping the gate line.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: November 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Joo Choi, Seung Ho Jung, Joon Geol Kim, Kang Moon Jo
  • Resin blend
    Patent number: 9493644
    Abstract: Provided are a resin blend, which includes a first resin, and a second resin having hydrogen-binding donor and acceptor, and having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m, and is formed in a layer-separated structure, a pellet, a method of manufacturing the same, and a resin molded article having a specific layer-separated structure. Because of the resin blend, a molded article may have enhanced mechanical properties and surface hardness, and additional surface coating may be omitted, thereby reducing a processing time, increasing productivity, and reducing production costs.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: November 15, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Houng Sik Yoo, Han Na Lee, Jin Young Ryu, Hyeon Choi, Woo Sung Kim, Eun Joo Choi
  • Resin article
    Patent number: 9481149
    Abstract: Provided is a resin article produced by melt processing and having layers formed by a layer-separation. The resin article may include a first resin layer, a second resin layer formed on the first resin layer and an interface layer including a first resin and a second resin and formed between the first resin layer and the second resin layer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: November 1, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Houng Sik Yoo, Hak Shin Kim, Jin Young Ryu, Chong Kyu Shin, Young Jun Hong, Jeong Min Kim, Eun Joo Choi
  • MULTILAYER CERAMIC CAPACITOR AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20160314902
    Abstract: A multilayer ceramic capacitor includes a ceramic body including a plurality of dielectric layers and first and second internal electrodes; and first and second external electrodes connected to the first and second internal electrodes, respectively. The first and second external electrodes include: first and second connection layers including the same first conductive material as the first and second internal electrodes and formed on opposite surfaces of the ceramic body to be connected to the first and second internal electrodes, respectively; and first and second terminal layers including a second conductive material different from the first conductive material and formed on the opposite surfaces of the ceramic body to cover the first and second connection layers.
    Type: Application
    Filed: January 13, 2016
    Publication date: October 27, 2016
    Inventors: Kyoung No LEE, Hyun Hee GU, Kyu Ha LEE, Jun Hyeong KIM, Eun Joo CHOI
  • Thin film transistor panel having an etch stopper on semiconductor
    Patent number: 9443877
    Abstract: A thin film transistor panel includes an insulating substrate, a gate insulating layer disposed on the insulating substrate, an oxide semiconductor layer disposed on the gate insulating layer, an etch stopper disposed on the oxide semiconductor layer, and a source electrode and a drain electrode disposed on the etch stopper.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: September 13, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Pil-Sang Yun, Ki-Won Kim, Hye-Young Ryu, Woo-Geun Lee, Seung-Ha Choi, Jae-Hyoung Youn, Kyoung-Jae Chung, Young-Wook Lee, Je-Hun Lee, Kap-Soo Yoon, Do-Hyun Kim, Dong-Ju Yang, Young-Joo Choi
  • CERAMIC ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20160254094
    Abstract: A ceramic electronic component includes a ceramic body; internal electrodes disposed in the ceramic body; external electrodes disposed on outer surfaces of the ceramic body and electrically connected to the internal electrodes; and tin plating layers disposed on the external electrodes.
    Type: Application
    Filed: October 22, 2015
    Publication date: September 1, 2016
    Inventors: Kyoung No LEE, Kyu Ha LEE, Seung Hee YOO, Eun Joo CHOI, Jun Hyeong KIM, Byung Jun JEON
  • Electrolyte for rechargeable lithium battery and rechargeable lithium battery including same
    Patent number: 9419305
    Abstract: An electrolyte for rechargeable lithium battery includes a lithium salt, a non-aqueous organic solvent, a first additive represented by the following Chemical Formula 1, and a second additive represented by the following Chemical Formula 2. A rechargeable lithium battery includes the electrolyte.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: August 16, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yeon-Joo Choi, Young-Kee Kim, Sumihito Ishida
  • Metal matrix composite, and preparation method thereof
    Patent number: 9410228
    Abstract: The present invention provides a preparation method of a metal matrix composite. The method comprises the following steps of: 1) pulverizing a solid carbon material to a micrometer size; 2) plastic deforming a metal matrix powder and dispersing the pulverized nanometer-sized carbon material into the metal matrix powder during the plastic deformation; 3) integrating the metal/carbon nano-material composite powder obtained in step 2) by using a hot forming process; and 4) heat treating the integrated bulk material at a predetermined temperature to form a composite having a metal-carbon nanophase, a metal-carbon nanoband formed by growth of the metal-carbon nanophase, or a metal-carbon nano-network structure formed by self-coupling of the metal-carbon nanoband.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: August 9, 2016
    Assignee: Industry-Academic Cooperation Foundation Yonsei University
    Inventors: Dong Hyun Bae, Hyun Joo Choi
  • LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF
    Publication number: 20160216584
    Abstract: A liquid crystal display and a manufacturing method thereof are disclosed, whereby a common electrode having a planar shape is formed directly on a common voltage line, and a semiconductor layer is formed on the common electrode and a gate line. The common electrode and a pixel electrode are formed on one substrate, with the common electrode being formed directly on the common voltage line. Accordingly, the costs of manufacturing the liquid crystal display may be reduced, and signal delay of a common voltage can be prevented.
    Type: Application
    Filed: July 21, 2015
    Publication date: July 28, 2016
    Inventors: Keum Hee LEE, Young Joo CHOI
  • LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF
    Publication number: 20160216586
    Abstract: A liquid crystal display and a manufacturing method thereof include a planar-shaped common electrode disposed directly on a common voltage line, and a semiconductor layer disposed on the common electrode and a gate line, serving as a gate insulating layer. Accordingly, it is possible to prevent signal delay of the common voltage and lower the manufacturing cost by disposing a common electrode and a pixel electrode on one substrate and disposing a common electrode directly on a common voltage line.
    Type: Application
    Filed: December 2, 2015
    Publication date: July 28, 2016
    Inventors: Young Joo CHOI, Chang Ha KWAK, Hee Jung YOON, Jin Yool KIM, Jae Phil LEE
  • Microwave
    Patent number: D773233
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 6, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Wook Suh, Jae-Moon Lee, Binna Kim, Hyeong-Ju Seo, Woo-Joo Choi, Gi-Sung Han
  • Microwave
    Patent number: D773234
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 6, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Wook Suh, Jae-Moon Lee, Binna Kim, Hyeong-Ju Seo, Woo-Joo Choi, Gi-Sung Han
  • Pedestal for wine glass
    Patent number: D773752
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 6, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Wook Suh, Hyeong-Ju Seo, Woo-Joo Choi, Jae-Jun Kim
  • Wine glass hanger
    Patent number: D774711
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: December 20, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeong-Ju Seo, Woo-Joo Choi, Jae-Jun Kim, Seung-Wook Suh
  • Wine glass hanger
    Patent number: D774712
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: December 20, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeong-Ju Seo, Woo-Joo Choi, Jae-Jun Kim, Seung-Wook Suh