Patents by Inventor Yeon Ahn

Yeon Ahn 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: 12284907
    Abstract: The present disclosure relates to an organic light emitting diode that includes at least one emitting material layer including an anthracene-based host and a boron-based dopant, at least one electron blocking layer including an amine-based compound substituted with at least one fused aromatic or hetero aromatic ring, and optionally at least one hole blocking layer including an azine-based compound or a benzimidazole-based compound. The organic light emitting diode has enhanced luminous efficiency as well as excellent luminous lifetime.
    Type: Grant
    Filed: December 21, 2019
    Date of Patent: April 22, 2025
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seung Hee Yoon, In Bum Song, Gwi Jeong Cho, So Yeon Ahn, Yoo Yi Son
  • Publication number: 20250108439
    Abstract: A hard film-coated cutting tool comprises: a hard base material and a hard film formed on the hard base material, wherein: assuming that a colorimetric diffusion reflectance value is LSCER and a total reflectance value is LSCIR, the relationship of 0.65?LSCER/LSCIR?0.85 is satisfied, and when surface roughness is measured on the rake surface of the hard film within the range of 100 ?m from the edge, an arithmetic average height SaR is within the range of 0.2 ?m?SaR?0.5 ?m; and assuming that, at a flank surface of the hard film, a colorimetric diffusion reflectance value is LSCEF and a total reflectance value is LSCIF, the relationship of LSCEF/LSCIF?0.9 is satisfied, and when surface roughness is measured on the flank surface of the hard film within the range of 100 ?m from the edge, an arithmetic average height SaF is within the range of 0.15 ?m?SaF?0.4 ?m.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 3, 2025
    Inventors: Yeong Ju JO, Kyoung Il KIM, Jin Han GWON, Hyung Jin KIM, Seong Yeon AHN, Seung Su AHN, Je Hun PARK
  • Patent number: 12139725
    Abstract: Provided is a composition capable of promoting osteogenic differentiation of stem cells, comprising, as active ingredients, a bone and cartilage progenitor cell culture solution and a multilayer graphene film, which promotes the differentiation of stem cells into specific cells, and thus is expected to be variously applicable in the in vivo/in vitro stem cell application fields.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: November 12, 2024
    Assignees: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, BIOGRAPHENE INC.
    Inventors: Jeong Mook Lim, Ji Yeon Ahn, Jong Bo Park, Byung Hee Hong, Woo Sub Yang
  • Publication number: 20240266189
    Abstract: A method for manufacturing a semiconductor device and a semiconductor device produced thereby. For example and without limitation, various aspects of this disclosure provide methods for manufacturing a semiconductor device, and semiconductor devices produced thereby, that comprise forming an interposer including a reinforcement layer.
    Type: Application
    Filed: April 15, 2024
    Publication date: August 8, 2024
    Inventors: Jong Sik Paek, Doo Hyun Park, Seong Min Seo, Sung Geun Kang, Yong Song, Wang Gu Lee, Eun Young Lee, Seo Yeon Ahn, Pil Je Sung
  • Publication number: 20240260464
    Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes; a first electron blocking layer including an electron blocking material of a spirofluorene-substituted amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including a first hole blocking material of an azine derivative and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.
    Type: Application
    Filed: March 7, 2024
    Publication date: August 1, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: In Bum SONG, Seung Hee YOON, Gwi Jeong CHO, So Yeon AHN, Yoo Yi SON, Tae Shick KIM
  • Publication number: 20240229095
    Abstract: This application provides methods and compositions related to constructing nucleic acid hydrogels (e.g., RNA hydrogels) having repetitive monomer units, each monomer unit includes one or more G-quadruplex sequences. These G-quadruplex sequences cross-link the nucleic acid concatemer such that it self-assembles into a hydrogel under appropriate conditions. In some embodiments, each monomeric unit of the nucleic acid concatemer comprises a coding sequence for polypeptide of interest; and the nucleic acid hydrogel formed by the nucleic acid concatemer can be used for expressing the polypeptide in high quantities. In some embodiments, at least two RNA concatemers comprising G-quadruplex sequences are produced, one further comprising a spacer and the other further comprising a sequence encoding a polypeptide of interest. These two RNA concatemers are combined and self assembled to form a single, wideband RNA hydrogel.
    Type: Application
    Filed: October 9, 2023
    Publication date: July 11, 2024
    Inventors: So Yeon AHN, Srivithya VELLAMPATTI KRISHNAMOORTHY, Soong Ho UM, Sung OH, Seung Won SHIN
  • Publication number: 20240167108
    Abstract: The present invention relates to a nucleic acid template for detection of a target nucleic acid based on a G-quadruplex sequence and a use thereof. A nucleic acid template for detection of a target nucleic acid or a method for detection or diagnosis of a target nucleic acid, using same according to the present invention, allows for simple and rapid detection of a target nucleic acid at room temperature with high specificity through addition and reaction of a reaction enzyme even without a separate PCR machine or a complicated temperature control procedure.
    Type: Application
    Filed: April 15, 2022
    Publication date: May 23, 2024
    Inventors: Soong Ho UM, Sung OH, Jaehyun KANG, So Yeon AHN, Yelim KIM, Jeonghun KIM
  • Publication number: 20240150806
    Abstract: This application provides methods and compositions related to constructing nucleic acid hydrogels (e.g., RNA hydrogels) having repetitive monomer units, each monomer unit includes one or more G-quadruplex sequences. These G-quadruplex sequences cross-link the nucleic acid concatemer such that it self-assembles into a hydrogel under appropriate conditions. In some embodiments, each monomeric unit of the nucleic acid concatemer comprises a coding sequence for polypeptide of interest; and the nucleic acid hydrogel formed by the nucleic acid concatemer can be used for expressing the polypeptide in high quantities. In some embodiments, at least two RNA concatemers comprising G-quadruplex sequences are produced, one further comprising a spacer and the other further comprising a sequence encoding a polypeptide of interest. These two RNA concatemers are combined and self assembled to form a single, wideband RNA hydrogel.
    Type: Application
    Filed: October 9, 2023
    Publication date: May 9, 2024
    Inventors: So Yeon AHN, Srivithya VELLAMPATTI KRISHNAMOORTHY, Soong Ho UM, Sung OH, Seung Won SHIN
  • Patent number: 11963443
    Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes; a first electron blocking layer including an electron blocking material of a spirofluorene-substituted amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including a first hole blocking material of an azine derivative and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.
    Type: Grant
    Filed: December 21, 2019
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: In Bum Song, Seung Hee Yoon, Gwi Jeong Cho, So Yeon Ahn, Yoo Yi Son, Tae Shick Kim
  • Patent number: 11961742
    Abstract: A method for manufacturing a semiconductor device and a semiconductor device produced thereby. For example and without limitation, various aspects of this disclosure provide methods for manufacturing a semiconductor device, and semiconductor devices produced thereby, that comprise forming an interposer including a reinforcement layer.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: April 16, 2024
    Assignee: AMKOR TECHNOLOGY SINGAPORE HOLDING PTE. LTD.
    Inventors: Jong Sik Paek, Doo Hyun Park, Seong Min Seo, Sung Geun Kang, Yong Song, Wang Gu Lee, Eun Young Lee, Seo Yeon Ahn, Pil Je Sung
  • Patent number: 11825818
    Abstract: The present invention relates to a method for preparing a large animal model, with peritoneal carcinomatosis, which is an abdominal cavity metastasis of tumor commonly found in advanced or recurrent solid cancer, is induced using a large animal, and the method for preparing a large animal model with peritoneal carcinomatosis comprises injecting a cancer cell line into the abdominal cavity of a piglet in which the immune function is not completed. The method for preparing a large animal model with peritoneal carcinomatosis, when a human-derived immortalized cell line is inoculated into a pig, can overcome xenograft rejection and induce peritoneal carcinomatosis, can use animals with sufficient supply and demand, and can expect the spread of peritoneal carcinomatosis through breeding.
    Type: Grant
    Filed: April 11, 2020
    Date of Patent: November 28, 2023
    Inventors: Hee Seung Kim, Jeong Mook Lim, Ji Yeon Ahn, Na Ra Lee, Eun Ji Lee, Soo Jin Park, Sung Jong Lee
  • Patent number: 11814662
    Abstract: This application provides methods and compositions related to constructing nucleic acid hydrogels (e.g., RNA hydrogels) having repetitive monomer units, each monomer unit includes one or more G-quadruplex sequences. These G-quadruplex sequences cross-link the nucleic acid concatemer such that it self-assembles into a hydrogel under appropriate conditions. In some embodiments, each monomeric unit of the nucleic acid concatemer comprises a coding sequence for polypeptide of interest; and the nucleic acid hydrogel formed by the nucleic acid concatemer can be used for expressing the polypeptide in high quantities. In some embodiments, at least two RNA concatemers comprising G-quadruplex sequences are produced, one further comprising a spacer and the other further comprising a sequence encoding a polypeptide of interest. These two RNA concatemers are combined and self assembled to form a single, wideband RNA hydrogel.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: November 14, 2023
    Assignee: Progeneer, Inc.
    Inventors: So Yeon Ahn, Srivithya Vellampatti Krishnamoorthy, Soong Ho Um, Sung Oh, Seung Won Shin
  • Publication number: 20230136378
    Abstract: Proposed is a federated learning system. The federated learning system comprises: a central server configured to transmit at least one global parameter of a global model to each client device, receive at least one local parameter of a local model trained from each of client devices, and update the global model using the at least one local parameter; and a plurality of client devices configured to train the local model by applying a loss between a predicted value of the global model and a predicted value of the local model possessed by itself to a loss function, and transmit at least one local parameter of the trained local model to the central server.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Gi Hun LEE, Min Chan JEONG, Se Young YUN, Sang Min BAE, Jae Yeon AHN, Seong Yoon KIM, Woo Jin CHUNG
  • Patent number: 11466254
    Abstract: Provided herein are a method of promoting osteogenic differentiation efficiency of a stem cell or of inducing chondrogenic differentiation of a stem cell, comprising treating the stem cell with a culture solution of chicken bone marrow-derived osteochondroprogenitor cells; a method of preventing or treating cartilage damage or a cartilage defect disease comprising administering to a subject in need thereof a composition comprising a differentiation-induced stem cell or differentiated chondrocyte made by said method as an active ingredient; and a method of preventing or treating a bone disease, cartilage damage, or a cartilage defect disease comprising administering to a subject in need thereof, a composition comprising a culture solution or culture concentrate of chicken bone marrow-derived osteochondroprogenitor cells as an active ingredient.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: October 11, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY R & DB FOUNDATION
    Inventors: Jeong Mook Lim, Ji Yeon Ahn
  • Publication number: 20220213547
    Abstract: The present invention relates to a nucleic acid probe system for increasing the detection efficiency of nucleic acid biomarkers, and improves the detection efficiency and detection sensitivity of biomarkers through a method for integrating a single-stranded probe sequence into a nucleic acid nanostructure. A nucleic acid nanostructure of the present invention, developed for this, converts, to a fast reaction inside the structure, some collision/reaction steps between molecules according to simple diffusion through localized aggregation of probe sequences, activates a fast signal amplification mechanism in the structure through structural flexibility so as to improve detection ability, thereby having effects of improving detection ability and effectively lowering a detection limit.
    Type: Application
    Filed: May 28, 2020
    Publication date: July 7, 2022
    Inventors: Soong Ho UM, So Yeon AHN, Seung Won SHIN
  • Publication number: 20220148886
    Abstract: A method for manufacturing a semiconductor device and a semiconductor device produced thereby. For example and without limitation, various aspects of this disclosure provide methods for manufacturing a semiconductor device, and semiconductor devices produced thereby, that comprise forming an interposer including a reinforcement layer.
    Type: Application
    Filed: August 23, 2021
    Publication date: May 12, 2022
    Inventors: Jong Sik Paek, Doo Hyun Park, Seong Min Seo, Sung Geun Kang, Yong Song, Wang Gu Lee, Eun Young Lee, Seo Yeon Ahn, Pil Je Sung
  • Publication number: 20210384436
    Abstract: The present disclosure relates to an organic light emitting diode that includes at least one emitting material layer including an anthracene-based host and a boron-based dopant, at least one electron blocking layer including an amine-based compound substituted with at least one fused aromatic or hetero aromatic ring, and optionally at least one hole blocking layer including an azine-based compound or a benzimidazole-based compound. The organic light emitting diode has enhanced luminous efficiency as well as excellent luminous lifetime.
    Type: Application
    Filed: December 21, 2019
    Publication date: December 9, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seung Hee YOON, In Bum SONG, Gwi Jeong CHO, So Yeon AHN, Yoo Yi SON
  • Publication number: 20210367164
    Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes; a first electron blocking layer including an electron blocking material of a spirofluorene-substituted amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including a first hole blocking material of an azine derivative and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.
    Type: Application
    Filed: December 21, 2019
    Publication date: November 25, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: In Bum SONG, Seung Hee YOON, Gwi Jeong CHO, So Yeon AHN, Yoo Yi SON, Tae Shick KIM
  • Patent number: 11109274
    Abstract: The present invention relates to a method and apparatus for effectively transmitting or receiving paging in a wireless communication system supporting a plurality of services. A method for transmitting paging by a base station in a wireless communication system supporting a plurality of services according to an embodiment of the present disclosure comprises the steps of: transmitting information on a paging slice corresponding to a service in which paging is transmitted to a terminal; and transmitting the paging to the terminal through the paging slice.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: August 31, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Heui Ryoo, Jung-Soo Jung, Ra-Yeon Ahn, Ji-Won Hwang
  • Patent number: 11101144
    Abstract: A method for manufacturing a semiconductor device and a semiconductor device produced thereby. For example and without limitation, various aspects of this disclosure provide methods for manufacturing a semiconductor device, and semiconductor devices produced thereby, that comprise forming an interposer including a reinforcement layer.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 24, 2021
    Assignee: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Jong Sik Paek, Doo Hyun Park, Seong Min Seo, Sung Geun Kang, Yong Song, Wang Gu Lee, Eun Young Lee, Seo Yeon Ahn, Pil Je Sung