Patents by Inventor Hyeon Choi

Hyeon 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).

  • Publication number: 20200002217
    Abstract: Disclosed is fluorophosphate glasses for an active device, the fluorophosphate glasses including: a metaphosphate composition including Mg(PO3)2 of about 20 mol % to about 60 mol %; a fluoride composition including BaF2 of about 20 mol % to about 60 mol % and CaF2 of about 0 mol % to about 40 mol %; and dopants including rare earth elements, in which there is an effect of increasing a carrier lifetime at a metastable state energy level that is stimulated-emitted due to an efficient energy transfer phenomenon by composition optimization of dopants (e.g. Er and Yb).
    Type: Application
    Filed: May 21, 2018
    Publication date: January 2, 2020
    Inventors: Ju Hyeon CHOI, Jung Whan IN, June PARK, Eui Sam LEE
  • Publication number: 20190353950
    Abstract: A display device includes a display module, a circuit board, and a shield cover. The display module includes a display panel. The circuit board is disposed under the display module and is connected to a first side of the display panel. The shield cover includes a body portion, a side portion, and a first support portion. The body portion is disposed under the circuit board. The side portion extends in an upward direction from a first side of the body portion along a first side surface of the display module, the first side surface of the display module being adjacent to the first side of the display panel. The first support portion protrudes in the upward direction from a second side of the body portion adjacent to the first side of the body portion, the first support portion contacting a lower surface of the display module.
    Type: Application
    Filed: March 21, 2019
    Publication date: November 21, 2019
    Inventors: Byoung Jin JIN, Seung Jae KANG, Dong Jin PARK, Jong Hyeon CHOI
  • Patent number: 10468685
    Abstract: The present disclosure relates to a carbon nanotube dispersion liquid comprising bundle-type carbon nanotubes; a dispersion medium; and a polyvinyl butyral resin having a weight average molecular weight of greater than 50,000, a method for preparing the same, methods for preparing electrode slurry and an electrode using the same, and an electrode and a secondary battery prepared using the carbon nanotube dispersion liquid.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: November 5, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Houngsik Yoo, Jongheon Seol, Jong Won Lee, Dong Hyun Kim, Gyemin Kwon, Yelin Kim, Jungkeun Yoo, Dong Hyun Cho, Sang Hoon Choy, Hyeon Choi, Kyungyeon Kang, Jihee Woo
  • Publication number: 20190314425
    Abstract: The present disclosure relates to an Akkermansia muciniphila strain having a prophylactic or therapeutic effect on a degenerative brain disease and uses thereof. Since the Akkermansia muciniphila strain, the intestinal microorganism of the present disclosure, shows an effect of improving movement control and cognitive abilities as well as memory in an animal model having a degenerative brain disease such as Parkinson's disease and Alzheimer's disease, it can be useful in the prevention or treatment of brain diseases including Alzheimer's disease, Parkinson's disease, mild cognitive impairment, etc. In addition, it was confirmed in the present disclosure that compared to the Akkermansia muciniphila strain cultured in a mucin-containing medium, that cultured in a mucin-free medium showed a remarkable effect of improving hyperlipidemia, fatty liver, obesity, and hyperglycemia induced in a mouse model by high-fat diet when administered orally (in vivo).
    Type: Application
    Filed: July 11, 2017
    Publication date: October 17, 2019
    Inventors: Byoung-Chan KIM, Chul-Ho LEE, Jung-Ran NOH, Kyoung-Shim KIM, Myung-Hee KIM, Yong-Hoon KIM, Sang Jun LEE, Dong-Ho CHANG, Dong-Hee CHOI, Jung Hwan HWANG, Yun-Jung SEO, In-Bok LEE, Young-Keun CHOI, Jung-Hyeon CHOI
  • Publication number: 20190309207
    Abstract: A thermally conductive resin composition is disclosed herein. The thermally conductive resin composition exhibits high thermal conductivity while having excellent handling properties. In an embodiment, a resin composition includes a resin component and 600 parts by weight or more of a thermally conductive filler relative to 100 parts by weight of the resin component. The thermally conductive filler comprise 30 to 50 wt % of a first thermally conductive filler having a D50 particle diameter of 35 ?m or more, 25 to 45 wt % of a second thermally conductive filler having a D50 particle diameter in a range of 15 ?m to 30 ?m, and 15 to 35 wt % of a third thermally conductive filler having a D50 particle diameter of 1 to 4 ?m, based on the total weight of the thermally conductive filler.
    Type: Application
    Filed: May 15, 2018
    Publication date: October 10, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Seong Kyun Kang, Yoon Gyung Cho, Yang Gu Kang, Eun Suk Park, Sang Min Park, Se Woo Yang, Hyeon Choi
  • Publication number: 20190300972
    Abstract: Provided are an Agathobaculum sp. strain having prophylactic or therapeutic effects on degenerative brain diseases, and use thereof. Since the intestinal microorganism Agathobaculum butyriciproducens SR79 strain of the present invention may have effects of inhibiting neuroinflammation and effects of improving movement regulation and cognitive and memory functions in animal models with degenerative brain diseases such as Parkinson's disease and Alzheimer's disease, the strain may be effectively used in foods, medicines, or feeds for preventing or treating brain diseases including Alzheimer's disease, Parkinson's disease, mild cognitive impairment, etc., and therefore, it is very useful in the relevant industries.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 3, 2019
    Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECH NOLOGY
    Inventors: Byoung-Chan KIM, Chul-Ho LEE, Kyoung-Shim KIM, Myung-Hee KIM, Sang Jun LEE, Dong-Ho CHANG, Doo-Sang PARK, Jung Hwan HWANG, Yong-Hoon KIM, Dong-Hee CHOI, Jung-Ran NOH, In-Bok LEE, Young-Keun CHOI, Yun-Jung SEO, Jung-Hyeon CHOI, Jun GO, Hye-Yeon PARK, Young-Kyoung RYU, Moon-Soo RHEE
  • Publication number: 20190296336
    Abstract: Provided is a composite anode active material including: a carbonaceous material; a metal alloyable with lithium, located on a surface of the carbonaceous material; and a silicon coating layer located on a surface of the carbonaceous material, on a surface of the metal alloyable with lithium, or a combination thereof.
    Type: Application
    Filed: November 3, 2017
    Publication date: September 26, 2019
    Applicant: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Jaephil Cho, Jaekyung Sung, Seong Hyeon Choi, Jiyoung MA, Yoonkwang Lee
  • Patent number: 10414888
    Abstract: The present invention relates to a polyurethane film for displays, which has high dielectric constant and low modulus characteristics and a dielectric constant/elastic modulus value of 2 to 15 mm2/N, and a production method thereof.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: September 17, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Jong-Won Lee, Hyeon Choi, Houng-Sik Yoo
  • Patent number: 10412788
    Abstract: Provided are a heating element, which includes: a transparent substance; a conductive heating line that is provided on at least one side of the transparent substance; bus bars that is electrically connected to the conductive heating line; and a power portion that is connected to the bus bars, wherein 30% or more of the entire area of the transparent substance has a conductive heating line pattern in which, when the straight line that intersects the conductive heating line is drawn, a ratio (distance distribution ratio) of standard deviation in respects to an average value of distances between adjacent intersection points of the straight line and the conductive heating line is 5% or more, and a method for manufacturing the same.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: September 10, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Hyeon Choi, Su-Jin Kim, Ji-Young Hwang, Seung-Tae Oh, Ki-Hwan Kim, Sang-Ki Chun, Young-Jun Hong, In-Seok Hwang, Dong-Wook Lee
  • Patent number: 10392458
    Abstract: Disclosed 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 can be useful in providing a protective film for polarizing plates having excellent adhesive strength to a polarizer. Also, the resin blend can be useful in exhibiting excellent adhesive strength to the polarizer without performing an additional primer coating process on a surface(s) of the protective film for polarizing plate, thereby reducing production time and cost and improving productivity.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: August 27, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Eun Joo Choi, Jin Young Ryu, Jong Won Lee, Kyoung Hoon Kim, Hyeon Choi
  • Patent number: 10361391
    Abstract: An organic light-emitting display device in which a connecting clad electrode is disposed between the thin film transistor and the light-emitting structure is provided. The connecting clad electrode may include a repair cutting region overlapping with a transparent of a lower substrate. Thus, in the organic light-emitting display device, reducing the area of the transparent area by the repair cutting region may be prevented.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 23, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Gyung-Min Kim, Jeong-Hyeon Choi, Joon-Soo Han
  • Patent number: 10329438
    Abstract: Disclosed are a silica sol composition including silica, an anionic dispersant, two or more epoxy silane coupling agents, and an organic solvent, and a method for preparing the same. In the silica sol composition, a uniform surface modification of silica particles may be achieved by using an anionic dispersant and two or more epoxy silane coupling agents, and it is possible to effectively enhance the compatibility between a silica filler whose surface is modified with an epoxy group and a resin which is an underfill composition.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: June 25, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Hee-Jung Choi, Hyung-Kee Kim, Seong-Kyun Kang, Hyeon Choi
  • Patent number: 10327285
    Abstract: The present specification provides a heating element including an adhesive film; and a conductive heating pattern provided on at least one surface of the adhesive film and having a line height of 10 micrometers or less, and a method for fabricating the same.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: June 18, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Jiehyun Seong, Hyeon Choi, Sarah Kim, Seung Heon Lee
  • Publication number: 20190176125
    Abstract: The present invention relates to a super absorbent polymer having a controlled degree of internal crosslinking and thereby having simultaneously improved basic absorption capacity and absorbency under pressure, and a method for producing the same. The super absorbent polymer may comprise a base polymer powder including a cross-linked polymer of a monomer containing a water-soluble ethylenically unsaturated compound or its salt; and a surface cross-linked layer that is formed on the base polymer powder and is further cross-linked from the cross-linked polymer, wherein a glass hollow particle having a micron-scale particle size is included in the cross-linked structure of the cross-linked polymer of the base polymer powder.
    Type: Application
    Filed: June 15, 2017
    Publication date: June 13, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ki Youl Yoon, Hyo Sook Joo, Gi Cheul Kim, Hyeon Choi, Ju Eun Kim
  • Publication number: 20190179077
    Abstract: A backlight unit includes a light guide plate (LGP), a housing that receives the LGP, and a first LGP guide member coupled to the housing. The housing includes a bottom surface, a first sidewall, and a second sidewall. The first and second sidewalls are connected to edges of the bottom surface, are disposed adjacent to each other, and are spaced apart from each other. A first corner of the bottom surface is disposed between the first and second sidewalls, and the first LGP guide member is disposed in a gap between the first and second sidewalls.
    Type: Application
    Filed: October 19, 2018
    Publication date: June 13, 2019
    Inventors: WON CHUL LEE, Dong Jin Park, Taek Sun Shin, Jin Gyu Sim, Jung Gil Oh, Kwang Sun You, Byoung Jin Jin, Jong Hyeon Choi
  • Publication number: 20190173069
    Abstract: A method for preparing a separator, a separator prepared using the same, and an electrochemical device including the same. More specifically, stability of the separator may be reinforced by preparing the separator using a slurry prepared by pre-dispersing an inorganic material and a dispersion resin, and then mixing a binder thereto when preparing the separator.
    Type: Application
    Filed: January 18, 2018
    Publication date: June 6, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Hyejin KWON, Houngsik YOO, Su Jin YOON, Dong Hyun KIM, Hyeon CHOI, Jean LEE
  • Publication number: 20190134602
    Abstract: The present invention relates to a super absorbent polymer having more improved absorbency under pressure and liquid permeability, and a method for producing the same. The super absorbent polymer comprises a base polymer powder including a cross-linked polymer of a monomer containing a water-soluble ethylenically unsaturated compound or its salt; and a surface cross-linked layer that is formed on the base polymer powder and is further cross-linked from the cross-linked polymer, wherein a glass hollow particle having a micron-scale particle size is included on the surface cross-linked layer.
    Type: Application
    Filed: June 15, 2017
    Publication date: May 9, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ki Youl YOON, Hyo Sook JOO, Gi Cheul KIM, Hyeon CHOI, Ju Eun KIM
  • Publication number: 20190126240
    Abstract: The present disclosure relates to a super absorbent polymer, including: a base resin powder comprising a first cross-linked polymer of a water soluble ethylene-based unsaturated monomer containing acidic groups which are at least partially neutralized; and a surface cross-linked layer comprising a second cross-linked polymer further cross-linked from the first cross-linked polymer and formed on the base resin powder, wherein the first cross-linked polymer is bound to a porous zeolite in which a mesopore having a BET surface area of at least 100 m2/g and a porosity of at least 0.2 cm3/g is formed, and a preparation method thereof.
    Type: Application
    Filed: January 31, 2018
    Publication date: May 2, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ki Youl Yoon, Hyo Sook Joo, Gi Cheul Kim, Hyeon Choi, Ju Eun Kim
  • Publication number: 20190125300
    Abstract: Provided is an ultrasound diagnostic apparatus including a probe configured to induce displacement in tissue of an object by irradiating a first focused beam of a first frequency to the object; and a processor configured to obtain a first ultrasound image of the object in which displacement has been induced; to determine whether the induced displacement is appropriate based on the obtained first ultrasound image; when the induced displacement is not appropriate, to control the probe to irradiate a second focused beam of a second frequency different from the first frequency to the object, so as to induce displacement in the tissue of the object; and to process a second ultrasound image of the object in which displacement has been induced by the second focused beam.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 2, 2019
    Inventors: Dong-geon KONG, Seong-hyeon CHOI, Hyoung-ki LEE
  • Publication number: 20190119452
    Abstract: The present disclosure relates to a preparation method of a porous super absorbent polymer exhibiting excellent absorption performance and improved absorption rate due to a novel pore structure, and a porous super absorbent polymer prepared therefrom. The porous super absorbent polymer includes a base resin powder including a cross-linked polymer of a water soluble ethylene-based unsaturated monomer containing acidic groups which are at least partially neutralized, and an inorganic filler contained in the cross-linked structure of the cross-linked polymer, wherein the base resin powder includes a plurality of pores having a diameter of a sub-micron (sub-?m) scale in the cross-linked structure, and an interconnected pore structure in the form of an open channel in which 90% or more of the pores are connected to each other.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 25, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ki Youl Yoon, Hyo Sook Joo, Gi Cheul Kim, Hyeon Choi, Ju Eun Kim