Patents by Inventor Eun Ho Choi

Eun 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: 10710315
    Abstract: A method can be used to attach a fabric member to a trim while forming a pattern in the fabric member. A trim has trim grooves formed in one side of the trim and a fabric member has a foam formed in one side of a skin material of the fabric member. A bonding member is coated to an outer surface of the foam and the fabric member is heated where the bonding member is coated. The heated fabric member is placed on the side of the trim where the trim grooves are formed. The fabric member is fixed to the trim by inserting edges of the fabric member into the trim grooves using insertion blades while pattern protrusions formed in a compression jig form a pattern by pressing the skin material of the fabric member.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: July 14, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Adient Automotive Interiors Korea Inc.
    Inventors: Dong Keun Yoo, Chang Dong Kim, Eun Ho Choi
  • Publication number: 20190339803
    Abstract: A touch panel includes a touch sensing circuit including a plurality of driving electrode lines and a plurality of sensing electrode lines, which intersect the driving electrode lines. The touch panel further includes a driving signal generation circuit that generates a plurality of driving signals and transmits the driving signals to the driving electrode lines, and a sensing circuit that receives a plurality of sensing signals from the sensing electrode lines. The driving signals have voltages that are not equal to zero during a first time zone, and the sum of driving signals generated at the same time is maintained to be equal to zero during the first time zone.
    Type: Application
    Filed: April 17, 2019
    Publication date: November 7, 2019
    Inventors: WON SANG PARK, SEONG MUN KIM, YUN HO KIM, IL NAM KIM, KYEONG MIN PARK, FRANKLIN BIEN, JOO HYEB SONG, KEUM DONG JUNG, EUN HO CHOI, SANG HYUN HEO
  • Patent number: 10454071
    Abstract: The present invention relates to a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same and, more particularly, to a light extraction substrate for an organic light emitting element exhibiting a good light extraction efficiency, a method for manufacturing the same, and an organic light emitting element comprising the same. To this end, the present invention provides a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same, the light extraction substrate comprising a first light extraction layer having a plurality of pores formed therein and made of a first metal oxide doped with a dopant; and a second light extraction layer formed on the first light extraction layer and made of a second metal oxide which has a different atomic diffusion rate compared to the first metal oxide.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: October 22, 2019
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Hyun Hee Lee, Hong Yoon, Seo Hyun Kim, Kyoung Wook Park, Jeong Woo Park, June Hyong Park, Il Hee Baek, Gun Sang Yoon, Joo Young Lee, Eun Ho Choi
  • Patent number: 10334472
    Abstract: Quality of Service (QoS) switching method and apparatus in a mobile communication system are provided. The method includes determining, based on a total resource usage for providing a plurality of QoSs, the QoS switching relating to level adjustment of the plurality of QoSs corresponding to one of downgrade, upgrade, and grade maintenance, and adjusting levels of the plurality of QoSs according to the determined QoS switching.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: June 25, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Dae-Kwon Jung, Hee-Won Kang, Eun-Jung Kim, Myung-Kwang Byun, Jeong-Ho Lee, Eun-Ho Choi
  • Patent number: 10174187
    Abstract: Provided are a room temperature crosslinked type halogen-free flame retardant resin composition and a method of preparing the same. Specifically, a room temperature crosslinked type halogen-free flame retardant resin composition according to the present invention including a polyethylene resin, a olefin-based elastomer, a metal hydroxy compound, a radical initiator, a crosslinked type alkoxysilane-based compound, a condensation catalyst of the crosslinked type alkoxysilane-based compound, and one or more crosslinking aids selected from the group consisting of an aliphatic acid and an aliphatic acid metal salt, and a method of preparing the same are provided. Further, a compound material and a masterbatch which are compositions for preparing the room temperature crosslinked type halogen-free flame retardant composition, and methods of preparing the same are provided.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: January 8, 2019
    Assignee: DYM SOLUTION CO., LTD.
    Inventors: Jong Seok Yang, Eun Ho Choi, Chan Ryoo, Baeg Yong Seong, Dong Ha Park
  • Patent number: 10177343
    Abstract: The present invention provides a light extraction substrate for an organic light emitting device, comprising: a base substrate; a scattering layer formed on the base substrate and made of TiO2; a plurality of first light scatterers formed inside the scattering layer and having a porous form; and a flat layer formed on the scattering layer, wherein the scattering layer is internally permeated by a part of the materials constituting the flat layer.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 8, 2019
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Joo Young Lee, Seo Hyun Kim, Eun Ho Choi
  • Patent number: 10100985
    Abstract: The present invention relates to an organic light-emitting device for lighting, and more specifically relates to an organic light-emitting device for lighting whereby it is possible to achieve excellent brightness by increasing the light-emitting area per unit area of an organic light-emitting element. For this purpose, the present invention provides an organic light-emitting device comprising: a first substrate and a second substrate disposed facing each other; a frame section which is formed between the first substrate and the second substrate, and is formed on the periphery of the first substrate and the second substrate so as to hermetically close the space between the first substrate and the second substrate; and a flexible organic light-emitting element which is disposed inside of the space, and of which at least one part has a curved surface.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: October 16, 2018
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Kyoung Wook Park, June Hyong Park, Hong Yoon, Seo Hyun Kim, Il Hee Baek, Gun Sang Yoon, Joo Young Lee, Hyun Hee Lee, Eun Ho Choi
  • Publication number: 20180141281
    Abstract: A method can be used to attach a fabric member to a trim while forming a pattern in the fabric member. A trim has trim grooves formed in one side of the trim and a fabric member has a foam formed in one side of a skin material of the fabric member. A bonding member is coated to an outer surface of the foam and the fabric member is heated where the bonding member is coated. The heated fabric member is placed on the side of the trim where the trim grooves are formed. The fabric member is fixed to the trim by inserting edges of the fabric member into the trim grooves using insertion blades while pattern protrusions formed in a compression jig form a pattern by pressing the skin material of the fabric member.
    Type: Application
    Filed: May 31, 2017
    Publication date: May 24, 2018
    Inventors: Dong Keun Yoo, Chang Dong Kim, Eun Ho Choi
  • Patent number: 9960387
    Abstract: The present invention relates to a method for manufacturing a light extraction substrate for an organic light-emitting element, a light extraction substrate for an organic light-emitting element and an organic light-emitting element comprising the same and, more specifically, to: a method for manufacturing a light extraction substrate for an organic light-emitting element, the method being capable of improving light extraction efficiency of the organic light-emitting element and also increasing luminance uniformity; a light extraction substrate for an organic light-emitting element; and an organic light-emitting element comprising the same.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: May 1, 2018
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Eun Ho Choi, Seo Hyun Kim, Joo Young Lee
  • Publication number: 20170373280
    Abstract: The present invention provides a light extraction substrate for an organic light emitting device, comprising: a base substrate; a scattering layer formed on the base substrate and made of TiO2; a plurality of first light scatterers formed inside the scattering layer and having a porous form; and a flat layer formed on the scattering layer, wherein the scattering layer is internally permeated by a part of the materials constituting the flat layer.
    Type: Application
    Filed: January 20, 2016
    Publication date: December 28, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Joo Young Lee, Seo Hyun Kim, Eun Ho Choi
  • Publication number: 20170352840
    Abstract: The present invention relates to a method for manufacturing a light extraction substrate for an organic light-emitting element, a light extraction substrate for an organic light-emitting element and an organic light-emitting element comprising the same and, more specifically, to: a method for manufacturing a light extraction substrate for an organic light-emitting element, the method being capable of improving light extraction efficiency of the organic light-emitting element and also increasing luminance uniformity; a light extraction substrate for an organic light-emitting element; and an organic light-emitting element comprising the same.
    Type: Application
    Filed: December 16, 2015
    Publication date: December 7, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Eun Ho Choi, Seo Hyun Kim, Joo Young Lee
  • Patent number: 9825257
    Abstract: A light extraction substrate for an organic light-emitting device (OLED) which can improve the brightness of a display or an illumination system to which an OLED is applied by improving light extraction efficiency and a method of manufacturing the same. The light extraction substrate for an OLED includes an oxide or nitride thin film formed on a substrate body. The oxide or nitride thin film includes a base layer formed on the substrate body, a first texture formed on the base layer, the first texture having a plurality of first protrusions which protrude continuously or discontinuously from the base layer, and a second texture having a plurality of second protrusions which protrude continuously or discontinuously from each outer surface of the first protrusions.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: November 21, 2017
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: June Hyoung Park, Young Zo Yoo, Tae Jung Park, Seo Hyun Kim, Il Hee Baek, Gun Sang Yoon, Eun Ho Choi
  • Publication number: 20170263893
    Abstract: The present invention relates to a method for manufacturing a light extraction substrate for an organic light-emitting diode and, more specifically, to a method for manufacturing a light extraction substrate for an organic light-emitting diode, which can improve light extraction efficiency of an organic light-emitting diode and can also remarkably reduce a manufacturing process, manufacturing costs, and manufacturing time.
    Type: Application
    Filed: September 3, 2015
    Publication date: September 14, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Dong Hyun Kim, Seo Hyun Kim, Eui Soo Kim, Kyoung Wook Park, Il Hee Baek, Chang Min Song, Gun Sang Yoon, Hong Yoon, Joo Young Lee, Hyun Hee Lee, Eun Ho Choi
  • Publication number: 20170256745
    Abstract: The present invention relates to a method for manufacturing a light extraction substrate for an organic light-emitting diode and, more specifically, to a method for manufacturing a light extraction substrate for an organic light-emitting diode, capable of increasing light extraction efficiency and structural stability of an organic light-emitting diode by improving the dispersibility of light scattering particles, distributed inside a matrix layer, and substrate adhesion.
    Type: Application
    Filed: September 3, 2015
    Publication date: September 7, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Eun Ho Choi, Seo Hyun Kim, Joo Young Lee, Dong Hyun Kim, Eui Soo Kim
  • Patent number: 9620261
    Abstract: A resin composition for producing an insulating material includes (A) 40 to 50% by weight of a base resin formed with a polyolefin-based resin or a derivative thereof, (B) 40 to 50% by weight of a magnesium hydroxide flame retardant of which surface is treated with vinyl silane, (C) 1 to 2% by weight of an antioxidant in which a first antioxidant and a second antioxidant are mixed in a weight ratio of 1:1 to 3, (D) 0.5 to 2% by weight of a lubricant, (E) 2 to 3% by weight of organosilane, (F) 0.05 to 0.2% by weight of an initiator, and (G) 1 to 4% by weight of a catalyst.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: April 11, 2017
    Assignees: HYUNDAI MOTOR COMPANY, DYM CO., LTD.
    Inventors: Seung Woo Choi, Dong Ha Park, Baeg Yong Seong, Eun Ho Choi, Jong Seok Yang
  • Publication number: 20170058113
    Abstract: Provided are a room temperature crosslinked type halogen-free flame retardant resin composition and a method of preparing the same. Specifically, a room temperature crosslinked type halogen-free flame retardant resin composition according to the present invention including a polyethylene resin, a olefin-based elastomer, a metal hydroxy compound, a radical initiator, a crosslinked type alkoxysilane-based compound, a condensation catalyst of the crosslinked type alkoxysilane-based compound, and one or more crosslinking aids selected from the group consisting of an aliphatic acid and an aliphatic acid metal salt, and a method of preparing the same are provided. Further, a compound material and a masterbatch which are compositions for preparing the room temperature crosslinked type halogen-free flame retardant composition, and methods of preparing the same are provided.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 2, 2017
    Inventors: Jong Seok YANG, Eun Ho CHOI, Chan RYOO, Baeg Yong SEONG, Dong Ha PARK
  • Patent number: 9570709
    Abstract: The present invention relates to a method for manufacturing an ultrathin organic light-emitting device and, more specifically, to a method for manufacturing an ultrathin organic light-emitting device capable of dramatically reducing the thickness thereof, in addition to improving light extraction efficiency.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: February 14, 2017
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Joo Young Lee, Eun Ho Choi, Hyun Hee Lee
  • Patent number: 9547219
    Abstract: Provided is a photographing apparatus. The photographing apparatus includes: a main body having an image pickup device disposed therein; a middle cover disposed in a back side of the main body and includes a first opening disposed to correspond to a position of the image pickup device; a first connector formed on the middle cover and around the first opening, where the first connector is configured to couple to an external optical component and is disposed so that the an optical axis of the image pickup device coincides with an optical axis of the external optical component, when the external optical component is coupled to the first connector; and a rear cover disposed on the middle cover and includes a second opening disposed to correspond to the position of the image pickup device.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: January 17, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam-young Jang, Byung-deok Nam, Yong-wook Kim, Jang-hoon Yoo, Seon-jeong Lee, Tae-youn Lee, Eun-ho Choi, Sung-bin Hong
  • Publication number: 20160369956
    Abstract: The present invention relates to an organic light-emitting device for lighting, and more specifically relates to an organic light-emitting device for lighting whereby it is possible to achieve excellent brightness by increasing the light-emitting area per unit area of an organic light-emitting element. For this purpose, the present invention provides an organic light-emitting device comprising: a first substrate and a second substrate disposed facing each other; a frame section which is formed between the first substrate and the second substrate, and is formed on the periphery of the first substrate and the second substrate so as to hermetically close the space between the first substrate and the second substrate; and a flexible organic light-emitting element which is disposed inside of the space, and of which at least one part has a curved surface.
    Type: Application
    Filed: December 2, 2014
    Publication date: December 22, 2016
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Kyoung Wook Park, June Hyong Park, Hong Yoon, Seo Hyun Kim, Il Hee Baek, Gun Sang Yoon, Joo Young Lee, Hyun Hee Lee, Eun Ho Choi
  • Patent number: 9515295
    Abstract: The present invention relates to a light extraction substrate for an organic light emitting device, a fabrication method therefor and an organic light emitting device including the same and, more specifically, to a light extraction substrate for an organic light emitting device, a fabrication method therefor and an organic light emitting device including the same, wherein the light extraction substrate has aperiodic photonic crystal patterns formed on the front side thereof, through which light emitted from an organic light emitting element is emitted to the outside, thereby avoiding the dependency of light extraction on a specific wavelength band which occurs in existing periodic photonic crystal patterns, and inducing light extraction from a wider wavelength band.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: December 6, 2016
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Yoon Young Kwon, Joo Young Lee, Kyoung Wook Park, Jeong Woo Park, Eun Ho Choi