Patents by Inventor Jeong Ik Lee

Jeong Ik Lee 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).

  • Publication number: 20190342993
    Abstract: Provided is stretchable electronics. The stretchable electronics includes stretchable substrate, first support patterns disposed on a first surface of the stretchable substrate, and output devices disposed on the first patterns, respectively. The first support patterns are arranged in a first direction and a second direction, which are parallel to an extension direction of the substrate, and each of the output devices generates an output stimulation.
    Type: Application
    Filed: December 12, 2018
    Publication date: November 7, 2019
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seongdeok AHN, Seung Youl KANG, Seong Hyun KIM, Hye Jin KIM, Kang-Ho PARK, Jeong Ik LEE, Young-deuk JEON, Chi-Sun HWANG, Jae Bon KOO, Su Jae LEE
  • Publication number: 20190330126
    Abstract: The present invention relates to a method of preparing butadiene and a device for preparing the same. According to the present invention, when butadiene is prepared by oxidative dehydrogenation of butene, unlike conventional methods, in which nitrogen is used as a diluent gas and an absorption method is used to separate butadiene from reaction products, butane is used as a diluent gas and a condensation method, in which butadiene is liquefied and separated from reaction products using a low-temperature refrigerant or cooling water, is used. In addition, an absorption method of recovering all hydrocarbons from an upper stream generated in a condensation process is used, so that loss of hydrocarbons is minimized. Therefore, the method and device of the present invention may provide high-purity butadiene while reducing raw material costs, production costs, and energy consumption, thereby improving economic efficiency of processes.
    Type: Application
    Filed: December 18, 2017
    Publication date: October 31, 2019
    Inventors: Jae Ik LEE, Eun Kyo KIM, Mi Kyung KIM, Jeong Seok LEE
  • Publication number: 20190327828
    Abstract: According to an exemplary embodiment of the present invention, by providing an apparatus for fabricating a stretchable electronic element including a chamber, a plurality of sample portions loaded into the chamber and spaced apart from each other, while the chamber is maintained at atmospheric pressure, and a movable member moving the plurality of sample portions and compressing each of the plurality of sample portions together while the chamber is kept under vacuum, it is possible to fabricate variable stretchable electronic elements.
    Type: Application
    Filed: December 14, 2018
    Publication date: October 24, 2019
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jong Tae LIM, Seung Youl KANG, Jae Bon KOO, Seongdeok AHN, JEONG IK LEE, Bock Soon NA, Hyunkoo LEE, Sung Haeng CHO
  • Publication number: 20190311177
    Abstract: Provided is a complex biometric sensor. The complex biometric sensor includes a substrate including a light emitting region, a first light receiving region, and a second light receiving region, a light emitting part disposed adjacent to the substrate in the light emitting region, a color conversion layer disposed on the substrate in the light emitting region and vertically overlapping the light emitting part; a first light receiving layer disposed on the substrate in the first light receiving region, and a second light receiving layer disposed on the substrate in the second light receiving region. The light emitting part generates light of a first wavelength. The color conversion layer receives light of the first wavelength and emits the light of the first wavelength and light of the second wavelength. The first light receiving layer detects the light of the first wavelength. The second light receiving layer detects the light of the second wavelength.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 10, 2019
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chul Woong JOO, Seung Youl KANG, Jaehyun MOON, Seongdeok AHN, Jae-Eun PI, Young Sam PARK, Byoung-Hwa KWON, Sung Haeng CHO, JEONG IK LEE, Nam Sung CHO, Su Jae LEE
  • Patent number: 10432333
    Abstract: A broadcast signal transmission apparatus and method using layered division multiplexing are disclosed. A broadcast signal transmission apparatus according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; a frame builder configured to generate a broadcast signal frame using the time-interleaved signal; and an orthogonal frequency division multiplexing (OFDM) transmitter configured to generate a pilot signal that is shared by a core layer corresponding to the core layer signal and an enhanced layer corresponding to the enhanced layer signal.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: October 1, 2019
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, R&DB FOUNDATION, KOREA MARITIME AND OCEAN UNIVERSITY
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jeong-Chang Kim, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Publication number: 20190221761
    Abstract: Provided is a stretchable display including an elastic body, a light emitting unit on the elastic body, and a wiring unit on the elastic body, wherein the light emitting unit includes a first substrate unit on the elastic body, a buffer layer on the first substrate unit, and a light emitting element on the buffer layer, the wiring unit includes a second substrate unit on the elastic body, a driving element configured to control the light emitting element, a wiring configured to electrically connect the driving element and the light emitting element, and an insulation layer configured to cover the driving element and the wiring, the light emitting unit and the wiring unit have respective corrugation structures, a thickness of the light emitting unit is larger than that of the wiring unit, a modulus of elasticity of the buffer layer is larger than that of the insulation layer, and a modulus of elasticity of the elastic body is smaller than that of the insulation layer.
    Type: Application
    Filed: November 29, 2018
    Publication date: July 18, 2019
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chi-Sun HWANG, Seung Youl KANG, Byoung-Hwa KWON, Gi Heon KIM, Seong Hyun KIM, Jaehyun MOON, Young Sam PARK, Seongdeok AHN, JEONG IK LEE, Sung Haeng CHO
  • Publication number: 20190189448
    Abstract: Disclosed herein is an apparatus for processing a substrate that forms a hole in a substrate while reducing a burr in the hole so that a module device can be inserted into the hole to reduce the thickness of a display device, and the display device using the apparatus. The apparatus for processing the substrate comprises a body configured to operably be rotatable, and a cylindrical cutting tip at an end of the body. The bottom surface of the cutting tip is in an acute angle with respect to a contact surface of the substrate to allow formation of a groove at the substrate.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Inventors: Jeong Kweon PARK, Jeong Joon Lee, Ju Ik Hong, Sang Chul Lee, Jangcheol Kim, Ik Hyun Kuon, Tagyoung CHOI, Jinwook Kwak
  • Patent number: 10322982
    Abstract: The present invention relates to energy saving method and apparatus for preparing styrene and alpha-methylstyrene concurrently, by which economic feasibility may be improved by reusing energy during preparing styrene and alpha-methylstyrene concurrently.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: June 18, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Mi-Kyung Kim, Jae-Ik Lee, Jong-Ku Lee, Jeong-Seok Lee
  • Publication number: 20190167215
    Abstract: The X-ray detector includes a sensor module provided with at least one sensor detecting an event, a communication interface connectable to at least one workstation, and a controller. The controller determines occurrence or non-occurrence of the predefined event based on an output value of the sensor module, and performs a configuration operation of the communication interface based on configuration information corresponding to the generated predefined event when occurrence of the predefined event is determined.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 6, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Ik KIM, Sung Woo LEE, Un Cheol KIM, Jeong Sik KIM
  • Publication number: 20190144361
    Abstract: A method of preparing butadiene and a device for preparing the same. The method includes passing reaction raw materials containing butene, oxygen, steam, and a diluent gas through an oxidative dehydrogenation reactor, and oxidative dehydrogenation is performed therein to produce a reaction product separating water from the reaction product condensing hydrocarbons to produce a crude hydrocarbon mixture; and separating butadiene from the crude hydrocarbon mixture, where a gas containing n-butane remaining after the butadiene is separated is fed into the oxidative dehydrogenation reactor, and butane is used as a diluent gas. Because butane is used as a diluent gas, a C4 mixture and gas products may be easily separated through cooling and condensation processes. Thus, the method may increase productivity while reducing energy consumption and raw material costs, thereby improving economic efficiency.
    Type: Application
    Filed: December 18, 2017
    Publication date: May 16, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Mi Kyung KIM, Jae Ik LEE, Eun Kyo KIM, Jeong Seok LEE, Young Chang BYUN, A Ra CHO
  • Patent number: 10281792
    Abstract: An electrochromic mirror includes a first electrode structure, a second electrode structure provided on the first electrode structure, and an electrolyte provided between the first and second electrode structures. Here, the first electrode structure further includes a metal layer, a graphene layer disposed on the metal layer, and an interface part disposed between the metal layer and the graphene layer. The interface part includes a micro/nano-porous polymer material.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: May 7, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Joo Yeon Kim, Jeong Ik Lee, Sang Hoon Cheon, Nam Sung Cho, Seong-Mok Cho, Yong Hae Kim, Tae-Youb Kim, Hojun Ryu, Chil Seong Ah, Chi-Sun Hwang
  • Publication number: 20190065815
    Abstract: The inventive concept provides an organic electronic device and a method of fabricating the same. The organic electronic device includes a flexible substrate configured to include a first region and a second region which are laterally spaced apart from each other, an organic light-emitting diode disposed in the first region of the flexible substrate, and a photodetector disposed in the second region of the flexible substrate, wherein the organic light-emitting diode and the photodetector are disposed on the same plane.
    Type: Application
    Filed: July 13, 2018
    Publication date: February 28, 2019
    Inventors: Young Sam PARK, Jaehyun MOON, Seongdeok AHN, Seung Youl KANG, Sung Haeng CHO, Byoung Gon YU, Jeong Ik LEE, Jonghee LEE, Nam Sung CHO, Doo-Hee CHO, Hyunsu CHO
  • Publication number: 20190025665
    Abstract: Provided is a reversible electrochemical mirror including a first substrate and a second substrate, which face each other, a first transparent electrode disposed on the first substrate and facing the second substrate, a second transparent electrode disposed on the second substrate and facing the first transparent electrode, an electrolyte solution interposed between the first transparent electrode and the second transparent electrode, and a counter electrode material layer disposed on the second transparent electrode and contacting the electrolyte solution.
    Type: Application
    Filed: April 4, 2018
    Publication date: January 24, 2019
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong-Mok CHO, Sujung KIM, Tae-Youb KIM, Juhee SONG, Chil Seong AH, Yong Hae KIM, Joo Yeon KIM, Hojun RYU, Jeong Ik LEE, Sang Hoon CHEON, Chi-Sun HWANG
  • Patent number: 10147900
    Abstract: Provided are a method for manufacturing an integrated substrate for an organic light emitting diode, an organic light emitting diode, and a method for manufacturing an organic light emitting diode, wherein the method for manufacturing an organic light emitting diode may include forming a sacrificial layer on a release substrate, forming a first electrode on the sacrificial layer, forming on the first electrode an auxiliary electrode pattern having an opening, forming a buffer layer on the auxiliary electrode pattern and in the opening, providing a substrate on the buffer layer, removing the release substrate and the sacrificial layer to expose a first surface of the first electrode, and laminating an organic light emitting layer and a second electrode on the first surface of the first electrode.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: December 4, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Doo-Hee Cho, Jonghee Lee, Hyunsu Cho, Byoung-Hwa Kwon, Jaehyun Moon, Young Sam Park, Jin Wook Shin, Byoung Gon Yu, Jeong Ik Lee, Hyunkoo Lee, Jong Tae Lim, Nam Sung Cho, Chul Woong Joo, Jun-Han Han
  • Publication number: 20180335281
    Abstract: Provided is an active camouflage device including a reflective layer, a first electrode disposed on the reflective layer, a second electrode facing the first electrode, and an electrolyte provided between the first and second electrodes. The first electrode includes a transparent electrode, and the second electrode includes a metal mesh.
    Type: Application
    Filed: April 10, 2018
    Publication date: November 22, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Tae-Youb KIM, Juhee SONG, Chil Seong AH, Seong-Mok CHO, Sujung KIM, Joo Yeon KIM, Hojun RYU, JEONG IK LEE, Sang Hoon CHEON, Chi-Sun HWANG
  • Publication number: 20180231856
    Abstract: An electrochromic mirror includes a first electrode structure, a second electrode structure provided on the first electrode structure, and an electrolyte provided between the first and second electrode structures. Here, the first electrode structure further includes a metal layer, a graphene layer disposed on the metal layer, and an interface part disposed between the metal layer and the graphene layer. The interface part includes a micro/nano-porous polymer material.
    Type: Application
    Filed: January 8, 2018
    Publication date: August 16, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Joo Yeon KIM, JEONG IK LEE, Sang Hoon CHEON, Nam Sung CHO, Seong-Mok CHO, Yong Hae KIM, Tae-Youb KIM, Hojun RYU, Chil Seong AH, Chi-Sun HWANG
  • Patent number: 10033005
    Abstract: Provided is a stretchable substrate, an electronic apparatus, and a method of manufacturing the electronic apparatus. The stretchable substrate includes a base part, first parts extruded from the base part, and second parts disposed between two adjacent first parts. The second parts have top surfaces positioned lower than the top surfaces of the first parts, and have wrinkles with random distribution.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: July 24, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jaehyun Moon, Chan Woo Park, Nam Sung Cho, Jun-Han Han, Seung Koo Park, Sung Ryul Yun, Jeong Ik Lee, Hyunsu Cho, Chul Woong Joo
  • Publication number: 20180190394
    Abstract: The present invention relates to a nuclear reactor, more precisely a passive safety device applicable to a thermal neutron reactor and a nuclear fuel assembly equipped with the same. The nuclear fuel assembly for a thermal neutron reactor of the present invention includes multiple fuel rods; multiple guide thimbles arranged between the fuel rods; and a passive safety device including neutron absorber parts which are inserted in one or more guide thimbles.
    Type: Application
    Filed: December 29, 2017
    Publication date: July 5, 2018
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yonghee Kim, Chihyung Kim, Jeong Ik Lee
  • Publication number: 20180190949
    Abstract: An organic light-emitting device includes a substrate, a bottom electrode on the substrate, an organic light-emitting layer on the bottom electrode, and a top electrode on the organic light-emitting layer, wherein the top electrode includes a first electrode part, a grid-shaped or plate-shaped second electrode part on the first electrode part, and an adhesive layer on the second electrode part.
    Type: Application
    Filed: February 21, 2018
    Publication date: July 5, 2018
    Inventors: Hyunkoo LEE, Byoung-Hwa KWON, Jeong Ik LEE, Jong Tae LIM, Byoung Gon YU
  • Patent number: 10012886
    Abstract: Disclosed is an optical modulator. An optical modulator comprises a substrate, an upper transparent electrode on the substrate, a partition wall providing a chamber between the substrate and the upper transparent electrode, an optical modulation member provided in the chamber and disposed on the substrate, and an electrolyte filling the chamber and including a first metal in an ionic state. The optical modulation member comprises a reflection layer on the substrate, and a lower transparent electrode on the reflection layer.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 3, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong-Mok Cho, Tae-Youb Kim, Seung Youl Lee, Yong Hae Kim, Hojun Ryu, Juhee Song, Chil Seong Ah, Jeong Ik Lee, Chi-Sun Hwang