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).

  • Polymer Film, Preparation Method Thereof, and Polymer Film Laminate Comprising the Same
    Publication number: 20230089009
    Abstract: The present disclosure relates to a polymer film, a preparation method of the same, and a polymer film laminate. Specifically, it relates to a new type of polymer film, which is thin and exhibits excellent absorption performance while having excellent flexibility and mechanical properties. In addition, the polymer film is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced. In addition, the present disclosure also relates to a preparation method of the above-described polymer film, and a polymer film laminate including the new type of polymer film.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 23, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kiyoul Yoon, Seongkyun Kang, Yu Jin Kim, Gicheul Kim, Hyeon Choi, Se Yeol Park
  • Composition for preventing, improving, or treating autism spectrum disorders including sp. strain as active ingredient
    Patent number: 11607433
    Abstract: The present invention relates to an Agathobaculum sp. strain having prophylactic or therapeutic effects on autism spectrum disorders, and use thereof. When the intestinal microorganism Agathobaculum sp. strain of the present invention was orally administered to valproic acid (VPA)-induced autism model mice and BTBR autism model mice, the effects of remarkably improving autism spectrum disorders including repetitive behaviors, hyperactivity, social deficiency and cognitive/memory dysfunction of the mice were observed, as compared with a non-treated control. Accordingly, it may be usefully applied to foods, drugs, or feeds for preventing or treating autism spectrum disorders, and thus is very useful in the relevant industries.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: March 21, 2023
    Assignee: HEALTHBIOME
    Inventors: Byoung Chan Kim, Kyoung Shim Kim, Chul Ho Lee, Dong Ho Chang, Yong-Hoon Kim, Jung-Ran Noh, Dong Hui Choi, Jung Hwan Hwang, Jun Go, Jaehun Kim, Hye-Yeon Park, Yun-Jung Seo, Young-Kyoung Ryu, In-Bok Lee, Young Keun Choi, Jung-Hyeon Choi
  • CARBON NANOTUBE DISPERSION AND METHOD FOR PREPARING THE SAME
    Publication number: 20230085066
    Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.
    Type: Application
    Filed: November 23, 2022
    Publication date: March 16, 2023
    Inventors: Dong Hyun KIM, Houng Sik YOO, Jin Myung CHA, Gye Min KWON, Hyun Sik CHAE, Dong Hyun CHO, Sang Hoon CHOY, Hyeon CHOI, Hyung Suk CHO
  • Preparation Method for Super Absorbent Polymer Film
    Publication number: 20230071674
    Abstract: The present disclosure relates to a preparation method for a super absorbent polymer film. Specifically, it relates to a preparation method for a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance. In addition, the super absorbent polymer film of the present disclosure has excellent flexibility and excellent mechanical properties, is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.
    Type: Application
    Filed: March 23, 2021
    Publication date: March 9, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kiyoul Yoon, Seongkyun Kang, Yu Jin Kim, Gicheul Kim, Hyosook Joo, Hyeon Choi, Se Yeol Park
  • Separator assembly for fuel cell and fuel cell stack including same
    Patent number: 11600841
    Abstract: A separator assembly for a fuel cell includes a first separator having tunnel-shaped fastening parts formed on a plurality of points of an edge area thereof, and a second separator having insert parts formed at positions corresponding to each of the fastening parts of the first separator on an edge area thereof to be inserted into the fastening parts, wherein the insert parts of the second separator are inserted into the fastening parts of the first separator to assemble the first separator and the second separator.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: March 7, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Hyeon Choi, Woo Chul Shin
  • Super Absorbent Polymer Film and Preparation Method Thereof
    Publication number: 20230067846
    Abstract: The present disclosure relates to a super absorbent polymer film and a preparation method of the same. Specifically, it relates to a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance and high tensile strength. In addition, the super absorbent polymer film of the present disclosure is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.
    Type: Application
    Filed: March 23, 2021
    Publication date: March 2, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kiyoul Yoon, Seongkyun Kang, Yu Jin Kim, Gicheul Kim, Hyeon Choi, Se Yeol Park
  • Negative electrode slurry for lithium secondary battery, and preparation method thereof
    Patent number: 11581531
    Abstract: A negative electrode slurry and a method of preparing the same. The negative electrode slurry includes lithium titanium oxide (LTO), a carboxylic acid-containing polymer dispersant, a binder, and an aqueous solvent. The carboxylic acid-containing polymer dispersant has a weight average molecular weight (Mw) of 2,500 g/mol to 500,000 g/mol and is present in an amount of 1.5 parts by weight to 20 parts by weight with respect to 100 parts by weight of the lithium titanium oxide.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: February 14, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Dong Hyun Kim, Houng Sik Yoo, Hyeon Choi
  • Display device
    Patent number: 11568785
    Abstract: Disclosed is a display device for increasing an aperture ratio of a transmissive part. The display device includes data lines overlapping with one or more of the pixels emitting light to display an image. Each pixel includes subpixels arranged within the pixel along a same direction as the data lines. The display device further includes transmissive parts arranged in the first direction and corresponding to adjacent pixels. In addition to the data lines overlapping the pixels, the display device may include power lines and reference voltage lines parallel with the data lines and overlapping with the pixels. The display device may include scan lines and sensing lines arranged to cross the transmissive parts and data lines. As a result, the number of lines crossing the transmissive parts is reduced, thereby increasing an aperture ratio of the transmissive parts.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 31, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong Hyeon Choi, Binn Kim, Joon Soo Han
  • Tiled display device
    Patent number: 11561424
    Abstract: Provided is a tiled display device including a plurality of display devices each having a display panel including a plurality of pixels and a support plate disposed under the display panel, a lower cover including an alignment hole and coupled to a lower portion of the support plate of each of the plurality of display devices, and a first coupling member including a base portion fixed to the support plate and a first coupling portion protruding from the base portion and passing through the alignment hole. A diameter of the first coupling portion is smaller than a diameter of the alignment hole.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: January 24, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Hyeon Choi, Haeng Won Park, Il Hyun Yang, Dae Hwan Jang, Jin Ho Cho
  • ELECTRODE FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL COMPRISING ANTIOXIDANT AND MEMBRANE-ELECTRODE ASSEMBLY COMPRISING SAME
    Publication number: 20230006216
    Abstract: The present disclosure relates to antioxidant for a polymer electrolyte membrane fuel cell electrode catalyst, which includes cerium hydrogen phosphate (HCe2(PO4)3(H2O)) in the form of a nanofiber, and an electrode and a membrane-electrode assembly including the same. The electrode for a polymer electrolyte membrane fuel cell of the present disclosure, wherein the antioxidant is dispersed, can improve the mechanical strength of an electrode catalyst layer and can minimize deterioration of chemical durability even after long-term operation. And, a fuel cell including the same can exhibit high output performance and can operate stably even after long-term operation.
    Type: Application
    Filed: January 10, 2022
    Publication date: January 5, 2023
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: So Young LEE, Seung Ju LEE, Jin Hyeon CHOI, Jeawoo JUNG, Hyoung-Juhn KIM, Sung Jong YOO, Hee-Young PARK, Bora SEO, Jin Young KIM, Jong Hyun JANG
  • sp. strain having prophylactic or therapeutic effects on degenerative brain diseases and use thereof
    Patent number: 11542468
    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: Grant
    Filed: June 14, 2017
    Date of Patent: January 3, 2023
    Assignee: HEALTHBIOME
    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
  • Carbon nanotube dispersion and method for preparing the same
    Patent number: 11542164
    Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: January 3, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Dong Hyun Kim, Houng Sik Yoo, Jin Myung Cha, Gye Min Kwon, Hyun Sik Chae, Dong Hyun Cho, Sang Hoon Choy, Hyeon Choi, Hyung Suk Cho
  • Slurry composition for coating secondary battery separator and secondary battery separator prepared using same
    Patent number: 11539099
    Abstract: A slurry composition for coating a secondary battery separator, a separator prepared using the same, and a secondary battery including the separator, wherein the slurry composition includes a phenolic compound including two or more aromatic rings, inorganic particles, a binder, and a solvent.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 27, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Gye Min Kwon, Houng Sik Yoo, Hyeon Choi, Da Kyung Han, Je An Lee
  • Ultrasonic diagnostic device and control method therefor
    Patent number: 11504087
    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: Grant
    Filed: November 4, 2016
    Date of Patent: November 22, 2022
    Assignee: SAMSUNG MEDISON CO., LTD.
    Inventors: Dong-geon Kong, Seong-hyeon Choi, Hyoung-ki Lee
  • Preparation Method for Super Absorbent Polymer Sheet, Super Absorbent Polymer Sheet Prepared Therefrom
    Publication number: 20220362743
    Abstract: The present disclosure relates to a preparation method for a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. According to the preparation method of the present disclosure, a porous super absorbent polymer sheet can be prepared by a simplified process.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Ki Youl Yoon, Gi Cheul Kim, Hyeon Choi, Hyo Sook Joo, Ju Eun Kim
  • Substrate
    Patent number: 11467452
    Abstract: A substrate on which spacers are disposed in a certain arrangement state and an optical device using such a substrate are provided. A plurality of spacers are irregularly disposed on a substrate depending on a predetermined rule, so that overall uniform optical characteristics can be ensured without causing a so-called moire phenomenon or the like, while the spacers maintain the uniform cell gap in the construction of the optical device.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 11, 2022
    Inventors: Han Min Seo, Ji Young Hwang, Hyeon Choi, Seung Heon Lee, Dong Hyun Oh, Jung Sun You, Cheol Ock Song, Nam Seok Bae
  • Solid hydrogen storage device
    Patent number: 11466814
    Abstract: A solid hydrogen storage device provides an improved heat-transfer efficiency by improving the contact properties between heat-exchange tubes and heat-transfer fins. The solid hydrogen storage device includes a heat-transfer fin including a plurality of tube through holes, a heating tube, and a cooling tube. The heating tube and the cooling tube respectively extend through the tube through holes, and the heating tube and the cooling tube have different coefficients of thermal expansion.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: October 11, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ji Hye Park, Kyung Moon Lee, Dong Hoon Nam, Young Jin Cho, Seung Hyeon Choi, Yun Su Lee, Hoon Mo Park
  • Method for preparing superabsorbent polymer, and superabsorbent polymer
    Patent number: 11459430
    Abstract: The present invention relates to a method for preparing superabsorbent polymer that introduces a plate type and rod-shaped clay additive in the superabsorbent polymer, and thus exhibits basic properties of a superabsorbent polymer equivalent to or much better than the existing superabsorbent polymer through multi-crosslinking, and particularly, can improve absorbency under pressure (AUP), and a superabsorbent polymer obtained thereby.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 4, 2022
    Inventors: Ki Youl Yoon, Hyo Sook Joo, Gi Cheul Kim, Hyeon Choi, Ju Eun Kim
  • METHOD OF MANUFACTURING COMPOSITE ELECTRODE FOR ALL-SOLID-STATE BATTERY, AND COMPOSITE ELECTRODE FOR ALL-SOLID-STATE BATTERY MANUFACTURED THEREBY
    Publication number: 20220302441
    Abstract: A method of manufacturing a composite electrode for an all-solid-state battery includes: preparing a precursor solution by mixing at least one solid electrolyte precursor and at least one polar solvent; stirring the precursor solution; preparing an electrode slurry by adding an active material to the stirred precursor solution; and heat-treating the electrode slurry and obtaining the composite electrode for the all-solid-state battery, wherein the composite electrode for the all-solid-state battery includes: the active material; and a coating layer disposed on the active material and including a solid electrolyte.
    Type: Application
    Filed: August 20, 2021
    Publication date: September 22, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventors: Sun Ho CHOI, Yong Jun JANG, In Woo SONG, Sang Heon LEE, Sang Soo LEE, So Young KIM, Seong Hyeon CHOI, Sa Heum KIM, Jae Min LIM
  • METHOD OF MANUFACTURING SULFIDE-BASED SOLID ELECTROLYTE WITHOUT GENERATION OF IMPURITIES, AND SULFIDE-BASED SOLID ELECTROLYTE MANUFACTURED USING SAME
    Publication number: 20220267149
    Abstract: A method of manufacturing a sulfide-based solid electrolyte, includes mixing a raw material with an organic solvent to manufacture a mixed solution; a heating step of heating and agitating the mixed solution; a cooling step of cooling and agitating the heated mixed solution; a re-heating step of heating and agitating the cooled mixed solution; and a heat treatment step, effectively synthesizing a sulfide-based solid electrolyte by heating and cooling a mixed solution containing a raw material in an organic solvent to a predetermined temperature.
    Type: Application
    Filed: February 18, 2022
    Publication date: August 25, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventors: Sun Ho Choi, Yong Jun Jang, In Woo Song, Sang Soo Lee, So Young Kim, Seong Hyeon Choi, Sa Heum Kim, Sang Heon Lee