Patents by Inventor Seung-Ho Choi

Seung-Ho 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: 9951150
    Abstract: Disclosed are an end-modified conjugated diene-based polymer configured such that the end of a conjugated diene-based polymer is coupled with an aminosilane-based end modifier, and a method of preparing the same.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: April 24, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Seung-Ho Choi, Min-Soo Kim, Cheol-Jae Kim, Won-Mun Choi
  • Patent number: 9931925
    Abstract: A system for controlling an air flap of a vehicle such as a commercial bus is intended to control an opening degree amount of an air flap installed for cooling an engine mounted in the vehicle. The system controls an open amount of the air flap when the vehicle enters a specified stop section such as a bus stop of a bus service route, so that the transmission of hot air and noise of the engine to pedestrians is minimized.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: April 3, 2018
    Assignee: Hyundai Motor Company
    Inventor: Seung Ho Choi
  • Publication number: 20180072851
    Abstract: The present invention relates to a modified polymer having a high modification ratio and an excellent affinity with a filler, a method of preparing the same, a rubber composition including the modified polymer, and a molded article prepared from the rubber composition. The modified polymer according to the present invention may exhibit a high modification ratio by including functional groups in a polymer main chain and on at least one end thereof, and thus, an affinity with a filler, such as silica, may be excellent. Also, the rubber composition according to the present invention may have excellent processability by including the modified polymer having an excellent affinity with the filler, and, as a result, a processed product (e.g., tire) prepared by using the rubber composition may have excellent tensile strength, abrasion resistance, and wet road surface resistance.
    Type: Application
    Filed: December 1, 2016
    Publication date: March 15, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Min Soo Kim, Seung Ho Choi, Dae June Joe, Won Mun Choi
  • Publication number: 20180066077
    Abstract: The present invention relates to a terminal modified and conjugated diene-based polymer rubber composition including a terminal modified and conjugated diene-based polymer which is characterized in that an aminosilane-based terminal modifier represented by Formula 1 or Formula 2 is combined at the terminal of a conjugated diene-based polymer, and a method for preparing the same.
    Type: Application
    Filed: June 17, 2016
    Publication date: March 8, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Seung-Ho Choi, Min-Soo Kim, Cheol-Jae Kim, Zeong-Back Kim, Ji-Eun Kim, Won-Mun Choi, Dae-June Joe
  • Patent number: 9822192
    Abstract: Disclosed are an end-modified conjugated diene-based polymer configured such that the end of a conjugated diene-based polymer is coupled with an aminosilane-based end modifier, and a method of preparing the same.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: November 21, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Seung-Ho Choi, Min-Soo Kim, Cheol-Jae Kim, Won-Mun Choi
  • Publication number: 20170314008
    Abstract: This invention relates to a carrier for immobilizing a biocatalyst including a Fe2O3 yolk-shell structure, to an immobilized enzyme using the carrier, and to realizing an increase in the stability of the enzyme and stability in organic solvents by cross-linking the enzyme. According to this invention, the carrier for immobilizing a biocatalyst and the enzyme immobilized thereon can be reused, have increased stability, facilitate the control of reactivity, pH, and temperature, and can be widely useful in various biochemical engineering industries.
    Type: Application
    Filed: August 29, 2014
    Publication date: November 2, 2017
    Inventors: Jung-Kul Lee, Yun-Chan Kang, Kumar singh sanjay Patel, Tae-Su Kim, Seung-Ho Choi
  • Publication number: 20170275390
    Abstract: The present invention provides a modified butadiene-based polymer capable of enhancing dispersability of an inorganic filler when used in a rubber composition, and enhancing viscoelasticity, a tensile property and processibility of the rubber composition in a balanced way from an interaction with the inorganic filler, and a modifier useful for preparing the same.
    Type: Application
    Filed: November 27, 2015
    Publication date: September 28, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Hyo Jin Bae, Won Hee Kim, Hee Jung Jeon, Seung Ho Choi, Kyoung Hwan Oh, Dong Hui Kim, Hyun Woong Park, Won Mun Choi, Jeong Heon Ahn, Suk Youn Kang
  • Patent number: 9730817
    Abstract: In an apparatus for manufacturing a scaffold and a scaffold manufactured by the apparatus, a collector is disposed under a dispensing head that dispenses melted bio materials (polymer) for manufacturing the scaffold. The collector has a cylindrical tube shape. Both sides of the tube shape are fixed. Thus, the tube is securely fixed and bending of the tube is prevented. Also, accuracy and preciseness of the scaffold are improved.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: August 15, 2017
    Assignees: KOREA INSTITUTE OF MACHINERY & MATERIALS, PROTEK KOREA CO., LTD.
    Inventors: Junhee Lee, Sua Park, Wan-Doo Kim, Seung-Ho Choi
  • Patent number: 9715997
    Abstract: A sputtering apparatus includes: a first cylindrical target unit, a second cylindrical target unit facing the first cylindrical target unit; a third cylindrical target unit facing the first cylindrical target unit and the second cylindrical target unit; a fourth cylindrical target unit facing the first cylindrical target unit, the second cylindrical target unit, and the third cylindrical target unit; and a power unit configured to provide power such that two of the first cylindrical target unit, the second cylindrical target unit, the third cylindrical target unit, and the fourth cylindrical target unit function as different electrodes.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: July 25, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Ho Choi, Dae-Sang Yoon, Young-Bun Jeon
  • Publication number: 20170204205
    Abstract: The present invention relates to a modified styrene-butadiene copolymer with a high modification ratio, including a functional group derived from a modifier represented by Formula 1, a preparation method thereof, a rubber composition including the same, and a tire manufactured from the rubber composition.
    Type: Application
    Filed: November 27, 2015
    Publication date: July 20, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Seung Ho Choi, Min Soo Kim, Cheol Jae Kim, Won Mun Choi
  • Publication number: 20170179569
    Abstract: An apparatus of an antenna is provided. The apparatus includes a first conductor plate disposed on an upper side of a single plate and comprising an aperture, a plurality of vias inserted to vertically penetrate through the single plate, a second conductor plate disposed on a lower side of the single plate, and a feed line for applying a signal to radiate to a dielectric resonator embedded as a cavity which is formed by the first conductor plate, the second conductor plate, and the vias. The aperture is in a size which produces multiple-resonance at an operating frequency.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 22, 2017
    Inventors: Moonil KIM, Kyoung Min LEE, Seung Ho CHOI
  • Publication number: 20170151866
    Abstract: A system for controlling an air flap of a vehicle such as a commercial bus is intended to control an opening degree amount of an air flap installed for cooling an engine mounted in the vehicle. The system controls an open amount of the air flap when the vehicle enters a specified stop section such as a bus stop of a bus service route, so that the transmission of hot air and noise of the engine to pedestrians is minimized.
    Type: Application
    Filed: July 8, 2016
    Publication date: June 1, 2017
    Inventor: Seung Ho Choi
  • Patent number: 9653701
    Abstract: A flexible display apparatus includes a flexible substrate, a display layer disposed on one surface of the flexible substrate and including a plurality of pixels, graphene disposed on a surface opposing the one surface of the flexible substrate, and an encapsulation layer covering the display layer.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: May 16, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung-Ho Choi, Hyun-Woo Joo, Myung-Soo Huh
  • Patent number: 9650710
    Abstract: One or more embodiments of the present invention relate to a sputtering device and a sputtering method. By using the sputtering device according to the present embodiment, characteristics of a deposition layer formed at the organic light emitting display apparatus may be improved, thereby improving electric characteristics and image quality of the organic light emitting display apparatus may be improved.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Ho Choi, Yong-Suk Lee
  • Patent number: 9631271
    Abstract: A sputtering system includes a chamber, a plurality of targets, and a substrate holder. The targets are disposed in the chamber. Each target includes a magnet unit disposed therein. The substrate holder is configured to support a substrate in the chamber. The magnet units are configured to generate a magnetic field between the targets. Each of the magnet units includes magnets disposed in two rows.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 25, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Ho Choi, Jong-Jin Park
  • Publication number: 20170022297
    Abstract: Disclosed are an end-modified conjugated diene-based polymer configured such that the end of a conjugated diene-based polymer is coupled with an aminosilane-based end modifier, and a method of preparing the same.
    Type: Application
    Filed: October 22, 2015
    Publication date: January 26, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Seung-Ho Choi, Min-Soo Kim, Cheol-Jae Kim, Won-Mun Choi
  • Publication number: 20170016402
    Abstract: An apparatus and a method for controlling intake surge noise of an engine of a vehicle are provided to suppress generation of noise due to an intake surge using an opening/closing location of a throttle valve and a time control when an intake surge pressure is generated. In particular, surge pressure and surge noise are removed by excluding an existing anti-surge valve or an existing intake purge valve, and determining whether intake surge generation conditions including a fuel supply state, intake pressures at front and rear ends of a throttle valve, a vehicle speed, and an engine speed to control an opening degree of the throttle valve for a predetermined time period.
    Type: Application
    Filed: December 11, 2015
    Publication date: January 19, 2017
    Inventors: Jae Sung Myung, Seung Ho Choi
  • Publication number: 20170002104
    Abstract: Disclosed are an end-modified conjugated diene-based polymer configured such that the end of a conjugated diene-based polymer is coupled with an aminosilane-based end modifier, and a method of preparing the same.
    Type: Application
    Filed: October 22, 2015
    Publication date: January 5, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Seung-Ho Choi, Min-Soo Kim, Cheol-Jae Kim, Won-Mun Choi
  • Patent number: 9533566
    Abstract: A method of controlling an active air flap, includes detecting a location of a vehicle from a GPS signal received through a GPS receiver, and acquiring a road surface gradient of a road on which the vehicle travels from location information of the vehicle and map information stored in a data storage, by a controller, determining an opening degree setting value corresponding to the road surface gradient of the road, by the controller, outputting a control signal for controlling an opening degree of an air flap according to a setting value, by the controller, and controlling the opening degree of the air flap by operating an actuator according to the control signal.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: January 3, 2017
    Assignee: Hyundai Motor Company
    Inventor: Seung Ho Choi
  • Patent number: 9515263
    Abstract: A device for depositing an organic material includes a substrate; a mask having an opening portion and a shield portion; a fixing member for fixing the substrate and the mask to each other; a deposition source comprising a plurality of nozzles arranged in a first direction and configured to spray the organic material; and a plurality of shield plates near the plurality of nozzles on the deposition source. An angle ? between the substrate and a line extended from a distal end of one of the nozzles to a center of a distal end of a corresponding one of the shield plates is greater than or equal to a taper angle ? of the shield portion of the mask.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: December 6, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Ho Choi, Hyun Choi, Sung-Gon Kim, Min-Gyu Seo