Patents by Inventor Jin-a Ryu

Jin-a Ryu 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: 20250075050
    Abstract: A method for preparing a recycled polymer is provided. The method includes: bringing a recovered polymer containing an additive into contact with an impregnation solvent in an impregnation tank to obtain a slurry containing a swollen polymer and an eluate; separating the slurry into a solid mixture containing the swollen polymer and a liquid mixture containing the eluate in a solid-liquid separator; and obtaining a recycled polymer from the solid mixture and recovering the additive from the liquid mixture, wherein the impregnation solvent is a mixed solvent of two or more solvents.
    Type: Application
    Filed: July 24, 2023
    Publication date: March 6, 2025
    Inventors: Sang Ho Lee, Jong Suh Park, Hyun Taek Oh, Do Dam Kim, Jue Hyung Kang, Jun Sik Kim, Jin Sook Ryu, Seon Cheol Cha
  • Patent number: 12221561
    Abstract: A hot-melt adhesive composition includes a styrene-butadiene-styrene triblock copolymer and a styrene-isoprene-styrene triblock copolymer. The hot-melt adhesive composition enables melt processing at a relatively low temperature because of having a low viscosity properties are property and thus exhibits excellent adhesive strength and heat resistance while improving the processability. In particular, the melt adhesive composition has excellent mechanical properties after curing, and thus can be used in various industrial fields.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: February 11, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Yong Su Park, Tae Yun Kim, Seungwhan Oh, Jin Young Ryu
  • Publication number: 20250003860
    Abstract: An apparatus and method for detecting smoke using multi-angle light scattering. The apparatus includes a light source array in which a plurality of light sources outputting optical signals of a same wavelength are arranged at a regular interval and configured to output the optical signals at different irradiation angles to smoke particles, a lens configured to divert optical paths of the optical signals output from each of the plurality of light sources included in the light source array, an optical detector configured to measure the optical signals that pass through the lens and are scattered and absorbed by the smoke particles, and a computing device configured to classify types of the smoke particles using a scattering coefficient and an absorption coefficient of the smoke particles determined through the measured optical signals.
    Type: Application
    Filed: February 13, 2024
    Publication date: January 2, 2025
    Inventors: SOOCHEOL KIM, JeongKyun KIM, Jin Hwa RYU, Hoe-Sung YANG, KANG BOK LEE, Sun-Hwa LIM, Kwang-Soo CHO, Kyu Won HAN, Sang Gi HONG
  • Patent number: 12130220
    Abstract: A biosensor using an exceptional point is disclosed. A biosensor according to one embodiment of the present disclosure includes: a biosensing unit configured to output wavelength-separated optical signals from destruction of an exceptional point resulting from attachment of biomolecules; a detection unit configured to convert the wavelength-separated optical signals into wavelength-separated electrical signals; an analysis unit configured to measure a beat frequency resulting from the wavelength-separated electrical signals; and a determination unit configured to determine a wavelength difference resulting from the beat frequency, thereby determining the amount of the biomolecules therefrom.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: October 29, 2024
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chil Min Kim, Jin Hyeok Ryu, Chang Hwan Yi
  • Patent number: 12084718
    Abstract: The present disclosure relates to a method for diagnosing or providing information for diagnosing Alzheimer's disease or a brain disease, and a composition and a diagnostic kit for diagnosing Alzheimer's disease or a brain disease using miR-485-3p. The present disclosure enables objective data analysis of the diagnosis of Alzheimer's disease or a brain disease by measuring the expression level of miR-485-3p in blood, minimizes risk to a patient by measuring the concentration of amyloid beta 42 in saliva, and enables quick and accurate diagnosis. Accordingly, the present disclosure is very useful for preventing Alzheimer's disease or a brain disease.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: September 10, 2024
    Assignee: Biorchestra Co., Ltd.
    Inventors: Jin-Hyeob Ryu, Hyun-Jeong Cho
  • Publication number: 20240294908
    Abstract: The present disclosure includes the use of a miRNA inhibitor for treating a pulmonary disease or disorder, inflammatory disease or disorder, and/or metabolic disease or disorder, such as those associated with an increased level of NLRP3 protein and/or NLRP3 gene expression. In some aspects, the miRNA inhibitor is capable of reducing NLRP3 protein and/or NLRP3 gene expression in a cell.
    Type: Application
    Filed: February 5, 2022
    Publication date: September 5, 2024
    Applicant: BIORCHESTRA CO., LTD.
    Inventors: Jin-Hyeob RYU, Han Seok KOH, Young Jin PARK, Hyun Su MIN, Yu Na LIM
  • Patent number: 12071530
    Abstract: Provided are a dispersant for a separator of a non-aqueous electrolyte battery, the dispersant including a cyanoethyl group-containing polymer, a separator of a non-aqueous electrolyte battery using the same, and a non-aqueous electrolyte battery.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: August 27, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Dong Hoon Park, Yoontae Hwang, Yong Man Lee, Jin Young Ryu
  • Publication number: 20240241050
    Abstract: A fire detection method is provided. The fire detection method calculates a singular value for determining whether smoke penetrating into a chamber is caused by a fire or a non-fire by using the processor, based on n number of normalized values of scattered light and n number of normalized values of transmitted light.
    Type: Application
    Filed: January 12, 2024
    Publication date: July 18, 2024
    Inventors: Hoe-Sung YANG, SOOCHEOL KIM, Hyunseok KIM, Jin Hwa RYU, SO YUNG PARK, KANG BOK LEE, Yong Tae LEE, Kwang-soo CHO, Kyu Won HAN
  • Publication number: 20240233516
    Abstract: The present invention is directed to reducing non-fire alarms by distinguishing between smoke caused by an actual fire and non-fire smoke generated in daily life when an event suspected to be a fire occurs. The present invention provides an apparatus and method for determining whether a fire occurs using a smoke detector, which includes a light emitter for generating multiple wavelengths, a light receiver configured to detect light scattered by particles of smoke, and a fire determiner for checking whether the strength of a signal of the detected scattered light exceeds a threshold and generating an alarm, to use characteristics of multiple wavelengths in a photoelectric fire detection apparatus. The fire determiner calculates normalized values by normalizing measured values for the scattered light, and calculates a singular value from the normalized values as a criterion for determining whether the smoke is caused by a fire or a non-fire.
    Type: Application
    Filed: December 14, 2023
    Publication date: July 11, 2024
    Inventors: Hoe-Sung YANG, Soocheol Kim, Hyunseok Kim, Jin Hwa Ryu, So Yung Park, Kang Bok Lee, Yong Tae Lee, Kwang-Soo Cho, Kyu Won Han
  • Publication number: 20240216529
    Abstract: The present disclosure relates to extracellular vesicles (e.g., exosomes) comprising a targeting moiety and a biologically active molecule via an optional linker, which may be useful as an agent for the prophylaxis or treatment of diseases. Also provided herein are methods for producing the extracellular vesicles and methods for using the extracellular vesicles to treat diseases or disorders.
    Type: Application
    Filed: December 22, 2022
    Publication date: July 4, 2024
    Applicant: BIORCHESTRA CO., LTD.
    Inventor: Jin-Hyeob RYU
  • Publication number: 20240209035
    Abstract: The present disclosure is directed to polynucleotides comprising an ORF encoding a protein of interest and UTRs (e.g., 5?-UTR and 3?-UTR), wherein the UTRs are heterologous to the encoded protein and capable of increasing the expression of the encoded protein, compared to a corresponding polynucleotide without the UTRs. The present disclosure is also directed to the use of such polynucleotides to treat various diseases and disorders.
    Type: Application
    Filed: April 15, 2022
    Publication date: June 27, 2024
    Applicant: BIORCHESTRA CO., LTD.
    Inventors: Jin-Hyeob RYU, Sang Moo LEE, Eun Ha KIM, Rak Kyun SEONG, Hyun Su MIN, Yu Na LIM
  • Publication number: 20240173348
    Abstract: The present disclosure includes cationic carrier units comprising (i) a water soluble polymer, (ii) a positively charged carrier, and (iii) an adjuvant moiety, wherein when the cationic carrier unit is mixed with an anionic payload (e.g., an antisense oligonucleotide) that electrostatically interacts with the cationic carrier unit, the resulting composition self-organizes into a micelle encapsulating the anionic payload in its core. The cationic carrier units can also comprise a tissue specific targeting moiety, which would be displayed on the surface of the micelle. The disclosure also includes micelles comprising the cationic carrier units of the disclosure, methods of manufacture of cationic carrier units and micelles, pharmaceutical compositions comprising the micelles, and also methods of treating diseases or conditions comprising administering the micelles to a subject in need thereof.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 30, 2024
    Applicant: BIORCHESTRA CO., LTD.
    Inventors: Jin-Hyeob RYU, Yu Na LIM, Hyun Su MIN, Han Seok KOH, Dae Hoon KIM, Hyun-Jeong CHO
  • Publication number: 20240131048
    Abstract: The present disclosure includes cationic carrier units comprising (i) a water-soluble polymer, (ii) a positively charged carrier, (iii) a hydrophobic moiety, and (iv) a crosslinking moiety, wherein when the cationic carrier unit is mixed with an anionic payload (e.g., an antisense oligonucleotide) that electrostatically interacts with the cationic carrier unit, the resulting composition self-organizes into a micelle encapsulating the anionic payload in its core. The cationic carrier units can also comprise a tissue specific targeting moiety, which would be displayed on the surface of the micelle. The disclosure also includes micelles comprising the cationic carrier units of the disclosure, methods of manufacture of cationic carrier units and micelles, pharmaceutical compositions comprising the micelles, and also methods of treating diseases or conditions comprising administering the micelles to a subject in need thereof.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 25, 2024
    Applicant: BIORCHESTRA CO., LTD.
    Inventors: Jin-Hyeob RYU, Yu Na LIM, Hyun Su MIN, Han Seok KOH, Dae Hoon KIM, Hyun-Jeong CHO
  • Publication number: 20240125706
    Abstract: A surface plasmon resonance imaging apparatus is provided. The surface plasmon resonance imaging apparatus includes a light irradiation unit configured to irradiate polarized light onto a metal coating film provided on one surface of a prism, a light modulator configured to spatially pattern-encode light reflected by the metal coating film and the prism, a light detector configured to detect a pattern-encoded light signal, obtained through pattern-encoding by the light modulator, as a spectral signal, a signal processor configured to spatially decode the spectral signal and analyze a decoded spectral signal to generate characteristic data of a sample provided on the metal coating film, and an output unit configured to output the characteristic data of the sample as a two-dimensional (2D) image.
    Type: Application
    Filed: December 29, 2022
    Publication date: April 18, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: SOOCHEOL KIM, JeongKyun KIM, Hyunseok KIM, Jin Hwa RYU, SO YUNG PARK, Hoe-Sung YANG, KANG BOK LEE, Sun-Hwa LIM, Kwang-Soo CHO, Kyu Won HAN, Sang Gi HONG
  • Publication number: 20240117350
    Abstract: The present disclosure includes the use of miRNA inhibitor for treating a disease or condition associated with a decreased level of PSD95 and/or synaptophysin and/or an increased level of caspase 3 (e.g., dystonia, neuropsychiatric diseases, intellectual disability, and/or addiction). The miRNA inhibitor useful for the present disclosure can inhibit miR-485 expression and/or activity, which in turn can increase the level of PSD95 and/or synaptophysin protein of gene expression and decrease the level of caspase 3 protein or gene expression.
    Type: Application
    Filed: February 5, 2022
    Publication date: April 11, 2024
    Applicant: BIORCHESTRA CO., LTD.
    Inventors: Jin-Hyeob RYU, Hyo Jin LEE, Hyun Su MIN, Yu Na LIM
  • Publication number: 20240091151
    Abstract: The present disclosure includes cationic carrier units comprising (i) a water soluble polymer, (ii) a positively charged carrier, (iii) a hydrophobic moiety, and (iv) a crosslinking moeity, wherein when the cationic carrier unit is mixed with an anionic payload (e.g., an RNA and/or DNA) that electrostatically interacts with the cationic carrier unit, the resulting composition self-organizes into a micelle encapsulating the anionic payload in its core. The cationic carrier units can also comprise a tissue specific targeting moiety, which would be displayed on the surface of the micelle. The disclosure also includes micelles comprising the cationic carrier units of the disclosure, methods of manufacture of cationic carrier units and micelles, pharmaceutical compositions comprising the micelles, and also methods of treating diseases or conditions comprising administering the micelles to a subject in need thereof.
    Type: Application
    Filed: December 30, 2021
    Publication date: March 21, 2024
    Applicant: BIORCHESTRA CO., LTD.
    Inventors: Jin-Hyeob RYU, Yu Na LIM, Hyun Su MIN, Han Seok KOH, Dae Hoon KIM, Hyun-Jeong CHO
  • Publication number: 20240077417
    Abstract: The disclosure relates to a non-dispersive infrared (NDIR) gas sensor which detects the concentration of gas with a simple structure and method by manufacturing an optical waveguide with a gas-permeable polymer material instead of a conventional cavity or chamber type. An optical signal travels through the optical waveguide of gas-permeable polymer by total internal reflection, and the gas naturally penetrates the optical waveguide without the use of separate inlet and outlet openings, so that the optical signal and gas particles come into contact with each other within the optical waveguide. Since the optical signal detected by a photodetector at the other end of the optical waveguide after traveling while contacting the gas particles has properties changed according to the concentration of the gas which they have contacted in the optical waveguide, it is possible to measure the concentration of a specific gas from the detected optical signal.
    Type: Application
    Filed: July 11, 2023
    Publication date: March 7, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Hwa RYU, Soocheol KIM, Hyunseok KIM, So Yung PARK, Hoe-Sung YANG, Kang Bok LEE, Kwang-Soo CHO, Kyu Won HAN
  • Patent number: 11912909
    Abstract: An acrylic emulsion pressure sensitive adhesive composition is provided. The acrylic emulsion pressure sensitive adhesive composition, due to pH-dependent properties, exhibits stable adhesion when attached to an adherend, but when it needs to be removed, it can be easily removed without residue using an alkaline solution. Thus, if the acrylic emulsion pressure sensitive adhesive composition is used as a pressure sensitive adhesive for a label of a plastic packaging article, the label can be easily removed during a recycling process, thus improving recycling efficiency.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: February 27, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Yong Man Lee, Jin Young Ryu
  • Publication number: 20240050461
    Abstract: The present disclosure includes the use of a miRNA inhibitor for inducing hair growth, increasing the hair density, increasing the follicular density, increasing the hair shaft thickness, increasing hair length, preventing hair loss, reducing hair loss, or any combination thereof in a subject in need thereof. In some aspects, the subject has one or more disorders selected from the group consisting of alopecia greata, androgenic alopecia, alopecia areata, alopecia universalis, involutional alopecia, trichotillomania, telogen effluvium, anagen effluvium, cicatricial, alopecia, scarring alopecia, scalp thinning, hair shaft abnormalities, infectious hair disorders, genetic disorders, and hair loss due to chemotherapy, hormonal imbalance, fungal infection, medication intake, chemical hair treatment, or aging.
    Type: Application
    Filed: December 23, 2021
    Publication date: February 15, 2024
    Applicant: BIORCHESTRA CO., LTD.
    Inventors: Jin-Hyeob RYU, Begum SHAHNAZ, Jamil MD HOSSAIN, Hyun Su MIN, Yu Na LIM
  • Patent number: 11839624
    Abstract: The present disclosure includes cationic carrier units comprising (i) a water soluble polymer, (ii) a positively charged carrier, and (iii) an adjuvant moiety, wherein when the cationic carrier unit is mixed with an anionic payload (e.g., an antisense oligonucleotide) that electrostatically interacts with the cationic carrier unit, the resulting composition self-organizes into a micelle encapsulating the anionic payload in its core. The cationic carrier units can also comprise a tissue specific targeting moiety, which would be displayed on the surface of the micelle. The disclosure also includes micelles comprising the cationic carrier units of the disclosure, methods of manufacture of cationic carrier units and micelles, pharmaceutical compositions comprising the micelles, and also methods of treating diseases or conditions comprising administering the micelles to a subject in need thereof.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: December 12, 2023
    Assignee: BIORCHESTRA CO., LTD.
    Inventors: Jin-Hyeob Ryu, Yu Na Lim, Hyun Su Min, Han Seok Koh, Dae Hoon Kim, Hyun-Jeong Cho