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: 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
  • Publication number: 20160329525
    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: Application
    Filed: November 12, 2014
    Publication date: November 10, 2016
    Applicant: 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
  • Publication number: 20160172629
    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: Application
    Filed: July 16, 2014
    Publication date: June 16, 2016
    Applicant: Corning Precisison Materials Co., Ltd.
    Inventors: Joo Young Lee, Eun Ho Choi, Hyun Hee Lee
  • Publication number: 20160164045
    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: Application
    Filed: July 8, 2014
    Publication date: June 9, 2016
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Yoon Young Kwon, Joo Young Lee, Kyoung Wook Park, Jeong Woo Park, Eun Ho Choi
  • Patent number: 9257312
    Abstract: A metal oxide thin film substrate which can increase light trapping efficiency and light extraction efficiency, a method of fabricating the same and a photovoltaic cell and organic light-emitting device (OLED) including the same. The metal oxide thin film substrate includes a base substrate, and a metal oxide thin film formed on the base substrate. The metal oxide thin film has voids which are formed inside the metal oxide thin film to scatter light.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: February 9, 2016
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: YoungZo Yoo, Seo Hyun Kim, June Hyoung Park, Il Hee Baek, Gun Sang Yoon, Hyunhee Lee, Eun Ho Choi
  • Patent number: 9246137
    Abstract: A method of fabricating a light extraction substrate for an OLE) by which the flatness of the light extraction substrate for an OLED can be increased. Particles of a first metal oxide and a sol of a second metal oxide are inputted and mixed into an organic solvent. A base substrate is coated with a mixture of the first and second metal oxides and the organic solvent. A resultant coating film on the base substrate is heat-treated. The coating film is coated with the second metal oxide to form a metal oxide thin film on the base substrate. In the metal oxide thin film, the particles of the first metal oxide are impregnated in a matrix of the second metal oxide.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: January 26, 2016
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Joo Young Lee, Eun Ho Choi, Hyunhee Lee
  • Patent number: 9225615
    Abstract: Provided is a network management method of a network manager. The network management method includes monitoring events including state information of a managed element wherein the events are published by the managed element included in a network, and generating commands for an action performed in the managed element according to the events, wherein the events are subscribed by the network manager managing the network.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: December 29, 2015
    Assignee: KT Corporation
    Inventors: Jung-Min Seo, Jinkyung Hwang, Eun-Ho Choi, Sun-Jong Kwon, Eunkyoung Paik
  • Publication number: 20150248948
    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: Application
    Filed: February 9, 2015
    Publication date: September 3, 2015
    Inventors: Seung Woo CHOI, Dong Ha PARK, Baeg Yong SEONG, Eun Ho CHOI, Jong Seok YANG
  • Patent number: 9118034
    Abstract: A metal oxide thin film substrate for an organic light-emitting device (OLED) which exhibits superior light extraction efficiency and can be easily fabricated at low cost and a method of fabricating the same and a method of fabricating the same. The metal oxide thin film substrate for an OLED includes a base substrate and a metal oxide thin film formed on the base substrate, the metal oxide thin film being made of a mixture of at least two metal oxides having different refractive indices.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: August 25, 2015
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Joo Young Lee, June Hyoung Park, Young Zo Yoo, Seo Hyun Kim, Jeong Woo Park, Il Hee Baek, Gun Sang Yoon, Hyunhee Lee, Eun Ho Choi
  • Publication number: 20150189540
    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: Application
    Filed: December 29, 2014
    Publication date: July 2, 2015
    Inventors: Dae-Kwon JUNG, Hee-Won Kang, Eun-Jung Kim, Myung-Kwang Byun, Jeong-Ho Lee, Eun-Ho Choi
  • Patent number: 9036492
    Abstract: A scheduling method and apparatus in a wireless communication system. The scheduling method for a node B in a wireless communication system supporting a plurality of carriers includes determining a delay weight for each of a plurality of user equipment (UEs) according to a preset weight application time point. The method also includes determining a scheduling metric value of each UE per carrier using the delay weight, and determining a priority of each UE per carrier using the scheduling metric value.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: May 19, 2015
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Dae-Kwon Jung, Tai-Suk Kim, Joo-Eung Kim, Eun-Ho Choi, Youngnam Han, Jin-Yup Hwang, Jinyoung Oh
  • Patent number: 8932389
    Abstract: A zinc oxide precursor for use in deposition of a zinc oxide-based thin film contains a zincocene having the following formula or a derivative thereof: where R1 and R2 are hydrogen or CnH2n+1. The n is a number selected from 1 to 3, and the R1 and R2 is one selected from the group consisting of hydrogen, a methyl group, an ethyl group and an i-propyl group. A method of depositing a zinc oxide-based thin film includes the following steps of: loading a substrate into a deposition chamber; and supplying the above-described zinc oxide precursor and an oxidizer into the deposition chamber and forming a zinc oxide-based thin film on the substrate via chemical vapor deposition. In an exemplary embodiment, the zinc oxide-based thin film may be formed on the substrate via atmospheric pressure chemical vapor deposition.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: January 13, 2015
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Sooho Park, Seohyun Kim, Jeongwoo Park, Taejung Park, YoungZo Yoo, GunSang Yoon, Eun-Ho Choi, Myong Woon Kim, Bogyeong Kim, Hyung Soo Shin, Seung Ho Yoo, Sang Do Lee, Sang Ick Lee, Sang Jun Yim
  • Publication number: 20140329004
    Abstract: A method of fabricating a light extraction substrate for an OLE) by which the flatness of the light extraction substrate for an OLED can be increased. Particles of a first metal oxide and a sol of a second metal oxide are inputted and mixed into an organic solvent. A base substrate is coated with a mixture of the first and second metal oxides and the organic solvent. A resultant coating film on the base substrate is heat-treated. The coating film is coated with the second metal oxide to form a metal oxide thin film on the base substrate. In the metal oxide thin film, the particles of the first metal oxide are impregnated in a matrix of the second metal oxide.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 6, 2014
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Joo Young Lee, Eun Ho Choi, Hyunhee Lee
  • Patent number: 8858694
    Abstract: A zinc oxide precursor for use in deposition of a zinc oxide-based thin film contains an alkyl zinc halide having the following formula: R—Zn—X, where R is an alkyl group CnH2n+1, and X is a halogen group. The n is a number ranging from 1 to 4, and the alkyl group is one selected from among a methyl group, an ethyl group, an i-propyl group and a t-butyl group. The halogen group contains one selected from among F, Br, Cl and I. A method of depositing a zinc oxide-based thin film includes loading a substrate into a deposition chamber; and supplying the zinc oxide precursor which contains the above-described alkyl zinc halide and an oxidizer into the deposition chamber and forming a zinc oxide-based thin film on the substrate via chemical vapor deposition. The zinc oxide-based thin film is deposited on the substrate via atmospheric pressure chemical vapor deposition.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: October 14, 2014
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Sooho Park, Seohyun Kim, Jeongwoo Park, Taejung Park, Young Zo Yoo, GunSang Yoon, Eun-Ho Choi, Myong Woon Kim, Bogyeong Kim, Hyung Soo Shin, Seung Ho Yoo, Sang Do Lee, Sang Ick Lee, Sang Jun Yim
  • Publication number: 20140184838
    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: Application
    Filed: October 2, 2013
    Publication date: July 3, 2014
    Applicant: 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