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).

  • RESIN
    Publication number: 20160194426
    Abstract: Provided are a resin, a method of preparing the resin, a resin blend including the resin, a pellet, a method of preparing a resin article using the resin blend and the pellet, and the resin article. An exemplary resin in the present invention may provide a resin article of which a surface has improved mechanical characteristics and surface hardness. Further, the use of the resin enables the resin article to exhibit the above-described effects without an additional coating process for a surface of the resin article, thereby leading to a decrease in manufacturing time and cost and to an increase in productivity.
    Type: Application
    Filed: August 1, 2014
    Publication date: July 7, 2016
    Inventors: Houng Sik YOO, Jin Young RYU, Eun Joo CHOI, Jong Won LEE, Hyeon CHOI
  • THIN-FILM TRANSISTOR SUBSTRATE
    Publication number: 20160197103
    Abstract: A thin-film transistor (TFT) substrate including a first region including a semiconductor layer, a first etch barrier layer covering the semiconductor layer, a first contact hole and a second contact hole, which are formed through the first etch barrier layer, a source electrode, which is disposed on the first etch barrier layer and is electrically connected to the semiconductor layer via the first contact hole, a drain electrode, which is disposed on the first etch barrier layer to be isolated from the source electrode, is electrically connected to the semiconductor layer via the second contact hole and has a transparent conductive oxide layer and a metal layer, and a pixel electrode, which is disposed on the first etch barrier layer and includes the transparent conductive oxide layer.
    Type: Application
    Filed: June 15, 2015
    Publication date: July 7, 2016
    Inventor: Young Joo CHOI
  • THIN FILM TRANSISTOR SUBSTRATE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20160149043
    Abstract: A thin film transistor substrate includes a gate metal pattern comprising a gate line extending in a first direction and a gate electrode electrically connected to the gate line, an active pattern overlapping the gate electrode, an etch-stop layer disposed on the active pattern and having a first through hole and a second through hole adjacent to the first through hole, a data metal pattern comprising a data line extending in a second direction crossing the first direction, a source electrode electrically connected to the active pattern through the first through hole and a drain electrode electrically connected to the active pattern through the second through hole and a first passivation layer disposed on the data metal pattern.
    Type: Application
    Filed: July 21, 2015
    Publication date: May 26, 2016
    Inventors: Young-Joo CHOI, Hyeon-Jun LEE, Byung-Gyu PARK, Eun-Hye PARK, Byung-Hwan CHU
  • SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME
    Publication number: 20160141579
    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: Application
    Filed: September 15, 2015
    Publication date: May 19, 2016
    Inventors: Hoon Seok, Jong-Hwan Park, Jung-Hyun Nam, Eon-Mi Lee, Yeon-Joo Choi, Ae-Hui Goh
  • RESIN BLEND
    Publication number: 20160137829
    Abstract: Provided 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 may provide a protective film for a polarizing plate having an excellent adhesive strength to a polarizer. In addition, when the resin blend is used, additional primer coating on the protective film for a polarizing plate may be omitted, and an excellent adhesive strength to the polarizer may be exhibited, thereby reducing production time and cost and increasing productivity.
    Type: Application
    Filed: July 15, 2014
    Publication date: May 19, 2016
    Inventors: Jong Won LEE, Han Na LEE, Jin Young RYU, Woo Sung KIM, Eun Joo CHOI, Hyeon CHOI
  • Separator For Rechargeable Lithium Battery and Rechargeable Lithium Battery Including Same
    Publication number: 20160141576
    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: Application
    Filed: September 1, 2015
    Publication date: May 19, 2016
    Inventors: Eon-Mi Lee, Jong-Hwan Park, Jung-Hyun Nam, Yeon-Joo Choi, Hoon Seok, Ae-Hui Goh
  • SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME
    Publication number: 20160133903
    Abstract: A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same, the separator including a substrate; and a coating layer on at least one side of the substrate, wherein the coating layer includes a polyvinylidene fluoride-containing compound, and an acryl-containing compound represented by the following Chemical Formula 1:
    Type: Application
    Filed: September 4, 2015
    Publication date: May 12, 2016
    Inventors: Yeon-Joo CHOI, Jong-Hwan PARK, Jung-Hyun NAM, Eun-Gyeong LEE
  • Resin article
    Patent number: 9296178
    Abstract: Provided is a resin article having a layer-separated structure. The resin article may include a first resin layer and a second resin layer formed on the first resin layer. Also, the component of the first resin layer is detected on a surface of the second resin layer by infrared spectrometer. 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 20, 2013
    Date of Patent: March 29, 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
  • Resin blend
    Patent number: 9296888
    Abstract: Provided are a resin blend for melt processing, a pellet and a method of preparing a resin article using the same. The resin blend may include a first resin, and a second resin having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m. The resin blend can improve mechanical and surface characteristics of a resin article. 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: March 29, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Young Jun Hong, Chong Kyu Shin, Eun Joo Choi
  • MULTILAYER CERAMIC ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20160087189
    Abstract: There is provided a multilayer ceramic electronic component including: a ceramic body in which internal electrodes containing a first electrode material and dielectric layers are alternately disposed; external electrodes provided on outer surfaces of the ceramic body and containing a second electrode material; and diffusion parts each disposed to be connected to one end of the internal electrode and the external electrode and containing the first electrode material and the second electrode material mixed with each other, wherein the diffusion part includes an internal diffusion portion disposed within the ceramic body and an external diffusion portion protruding outside of the ceramic body.
    Type: Application
    Filed: May 27, 2015
    Publication date: March 24, 2016
    Inventors: Kyoung No LEE, Kyu Ha LEE, Eun Joo CHOI, Jun Hyeong KIM, Byung Jun JEON
  • Thin film transistor array panel and method for manufacturing the same
    Patent number: 9281322
    Abstract: A thin film transistor array panel is disclosed. The thin film transistor array panel may include a gate line disposed on a substrate and including a gate electrode, a semiconductor layer including an oxide semiconductor disposed on the substrate, a data wiring layer disposed on the substrate and including a data line crossing the gate line, a source electrode connected to the data line and a drain electrode facing the source electrode, a polymer layer covering the source electrode and the drain electrode, and a passivation layer disposed on the polymer layer. The data wiring layer may include copper or a copper alloy and the polymer layer may include fluorocarbon.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: March 8, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung-Ho Jung, Young Joo Choi, Joon Geol Kim, Kang Moon Jo, Sho Yeon Kim, Byung Hwan Chu, Woo Geun Lee, Woo-Seok Jeon
  • DISPLAY SUBSTRATE AND METHOD OF FABRICATING THE SAME
    Publication number: 20160064414
    Abstract: Disclosed are a display substrate, of which productivity is improved by decreasing five mask (M) processes utilized for fabricating the display substrate used in a liquid crystal display device in a horizontal field (Plane to Line Switching (PLS)) mode to four mask processes, and a method of fabricating the same.
    Type: Application
    Filed: June 29, 2015
    Publication date: March 3, 2016
    Inventor: Young-Joo CHOI
  • DISPLAY SUBSTRATE AND METHOD OF FABRICATING THE SAME
    Publication number: 20160064412
    Abstract: A display substrate including a lower common electrode disposed on a substrate, an insulating layer disposed on the lower common electrode, a gate pattern including a gate electrode disposed on the insulating layer and a common electrode contact part and a direct contact part spaced apart from the gate electrode, a gate insulating layer disposed on the gate pattern, a semiconductor layer disposed on the gate insulating layer, an etch stopping layer disposed on the gate insulating layer, source and drain electrodes disposed on the etch stopping layer, pixel part extending from the source and drain electrodes, a first conductive layer connected to the common electrode contact part, a second conductive layer connected to the direct contact part, and a passivation layer disposed on the source and drain electrodes, the first conductive layer, and the second conductive layer.
    Type: Application
    Filed: May 29, 2015
    Publication date: March 3, 2016
    Inventor: Young-Joo Choi
  • DISPLAY SUBSTRATE AND METHOD OF FABRICATING THE SAME
    Publication number: 20160064420
    Abstract: A display substrate and its fabricating method have been disclosed. In a horizontal-field-mode liquid crystal display device, while maintaining five mask processes, additional direct contact has been formed to implement a narrow bezel.
    Type: Application
    Filed: June 4, 2015
    Publication date: March 3, 2016
    Inventor: Young-Joo CHOI
  • Core-shell resin pellet having melt viscosity difference between the core resin and the shell resin
    Patent number: 9243134
    Abstract: Provided are a resin blend for melt processing, a pellet and a method of preparing a resin article using the same. The resin blend may include a first resin, and a second resin having a difference in melt viscosity from the first resin of 0.1 to 3000 pa*s at a shear rate of 100 to 1000 s?1 and a processing temperature of the resin blend. The resin blend can improve mechanical and surface characteristics of a resin article. 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: January 26, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Young Jun Hong, Chong Kyu Shin, Eun Joo Choi
  • Thin film transistor array panel
    Patent number: 9245906
    Abstract: A thin film transistor array panel includes: a gate line disposed on a substrate and including a gate electrode, a semiconductor layer including an oxide semiconductor disposed on the substrate, and a data wire layer disposed on the substrate and including a data line intersecting the gate line, a source electrode connected to the data line, and a drain electrode facing the source electrode. In addition, at least one of the data line, the source electrode or the drain electrode of the data wire layer includes a barrier layer and a main wiring layer disposed on the barrier layer. The main wiring layer includes copper or a copper alloy. Also, the barrier layer includes a metal oxide, and the metal oxide includes zinc.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: January 26, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Woo Park, Do-Hyun Kim, Young Joo Choi, Dong Hoon Lee, Sung Haeng Cho
  • Standby power reduction device
    Patent number: 9240735
    Abstract: A standby power reduction device is provided, including a capacitor connected in parallel to a main switch controlling a switching mode power supply, without the necessity of providing a starting circuit, thereby reducing the cost and enabling miniaturization of product.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: January 19, 2016
    Assignee: Korchip Corporation
    Inventors: Soon Joo Choi, Jin Hyoung Son
  • LINE-FOCUSED ULTRASOUND TRANSDUCER AND HIGH-INTENSITY LINE FOCUSED ULTRASOUND GENERATOR INCLUDING SAME
    Publication number: 20160001097
    Abstract: The present invention has been made in an effort to provide a line-focused ultrasound transducer and a high intensity line-focused ultrasound generation device including the same in which ultrasound is focused in a line so that the treatment time can be reduced and the structure can be simplified. A line-focused ultrasound transducer which focuses in a line shape includes: a therapeutic piezoelectric member having a hollow semi-cylindrical shape; a first electrode portion which is provided on an inner surface of the therapeutic piezoelectric member; and a second electrode portion which is provided on an outer surface of the therapeutic piezoelectric member in correspondence with the first electrode portion.
    Type: Application
    Filed: December 6, 2013
    Publication date: January 7, 2016
    Applicant: KORUST CO., LTD.
    Inventors: Sung-Chan CHO, Min-Joo CHOI
  • Handle for home appliance
    Patent number: D749901
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: February 23, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-Young Shin, Woo-Joo Choi
  • Dishwasher
    Patent number: D758026
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: May 31, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Woo-Joo Choi