Patents by Inventor Hyun Ok

Hyun Ok 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: 12346484
    Abstract: A user terminal according to an embodiment may include a processor configured to: based on accessing an instant messaging server with a user account and the user account being a general account, display a general interface for a plurality of services provided to the general account; and based on the user account being a protected account, display a protected interface in which at least some of the plurality of services provided to the general account is restricted.
    Type: Grant
    Filed: May 17, 2023
    Date of Patent: July 1, 2025
    Assignee: KAKAO CORP.
    Inventors: You Jin Kim, Jung Woo Choi, Jenog Ryeol Choi, Joong Seon Kim, Hong Chan Yun, Ju Ho Chung, Do Hyun Youn, Hyung Min Kim, Hyun Ok Choi, Chun Ho Kim, Bo Kyung Kim
  • Publication number: 20250209106
    Abstract: A method of retrieving a document according to an embodiment of the present application includes: acquiring a user retrieval query; calculating a user inquiry vector in a unit of sentence from the user retrieval query and acquiring a first document candidate group based on similarity between the calculated user inquiry vector and an embedding vector of a document stored in a retrieval database; acquiring a second document candidate group based on similarity between a text included in the user retrieval query and a text of the document stored in the retrieval database; and determining a summarization target document based on the first document candidate group and the second document candidate group.
    Type: Application
    Filed: March 10, 2025
    Publication date: June 26, 2025
    Applicant: 42Maru Inc.
    Inventors: Dong Hwan KIM, Hyun Wuk SON, Hyun Ok Kim, You Kyung KWON, In Je SEONG, Yong Sun CHOI, Ha Kyeom MOON
  • Publication number: 20250190685
    Abstract: An unstructured document analysis method according to an embodiment includes: operations of acquiring unstructured document data including font characteristic data and document structure data, extracting text included in the unstructured document data on the basis of the font characteristic data or the document structure data, classifying the extracted text into a pre-classified item using a trained neural network model, acquiring a content query related to the content included in the unstructured document data and associated with the pre-classified item, and generating an answer to the content query on the basis of the extracted text classified into the item.
    Type: Application
    Filed: February 19, 2025
    Publication date: June 12, 2025
    Applicant: 42Maru Inc.
    Inventors: Dong Hwan KIM, Hyun Ok Kim, Seong Woo Park, Jae Yeob Jung, Yo Han Moon, Min Sun Song
  • Patent number: 12299057
    Abstract: Disclosed are a method and an apparatus for managing a user profile. A user profile management method performed by a server according to an example embodiment includes creating a plurality of profiles corresponding to a user account, receiving a view request for a profile of the other user account in a predetermined relationship with the user account from a user terminal logged in with the user account, providing a UI of a profile of the other user account including an interfacing object regarding the profile of the user account to the user account, receiving an input for selecting a profile to be displayed on the other user terminal logged in the other user account, among a plurality of profiles corresponding to the user account through the interfacing object, and matching the other user account with the selected profile.
    Type: Grant
    Filed: October 2, 2023
    Date of Patent: May 13, 2025
    Assignee: KAKAO CORP.
    Inventors: So Yon Sung, Ji Sun Lee, Bum Sun Ryu, Jee Won You, Ki Byung Chae, Uh Chul Kim, Do Hyun Youn, Young Min Park, Eun Ho Son, Min Jung Kim, Jin Hwan Lee, Jun Young Kim, Hyun Ok Choi, Hye Sun Kim, Tae Joong Yoon, Ha Na Jung, Dong Keun Lee, Do Yi Kim, Min Jeong Yang, Hong Chan Yun
  • Publication number: 20250139190
    Abstract: Provided are a device and method for proving a Hadamard product without any trusted setup. The method includes receiving a random value from a verifier, generating a random vector using the random value, generating a proof value for a Hadamard product of a first target vector and a second target vector using the random vector and an inner product argument (IPA), and transmitting the proof value to the verifier.
    Type: Application
    Filed: December 26, 2023
    Publication date: May 1, 2025
    Inventors: Hyun Ok OH, Dong Hwan OH
  • Patent number: 12259917
    Abstract: A method of retrieving a document according to an embodiment of the present application includes: acquiring a user retrieval query; calculating a user inquiry vector in a unit of sentence from the user retrieval query and acquiring a first document candidate group based on similarity between the calculated user inquiry vector and an embedding vector of a document stored in a retrieval database; acquiring a second document candidate group based on similarity between a text included in the user retrieval query and a text of the document stored in the retrieval database; and determining a summarization target document based on the first document candidate group and the second document candidate group.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: March 25, 2025
    Assignee: 42Maru Inc.
    Inventors: Dong Hwan Kim, Hyun Wuk Son, Hyun Ok Kim, You Kyung Kwon, In Je Seong, Yong Sun Choi, Ha Kyeom Moon
  • Patent number: 12254263
    Abstract: An unstructured document analysis method according to an embodiment includes: operations of acquiring unstructured document data including font characteristic data and document structure data, extracting text included in the unstructured document data on the basis of the font characteristic data or the document structure data, classifying the extracted text into a pre-classified item using a trained neural network model, acquiring a content query related to the content included in the unstructured document data and associated with the pre-classified item, and generating an answer to the content query on the basis of the extracted text classified into the item.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: March 18, 2025
    Assignee: 42Maru Inc.
    Inventors: Dong Hwan Kim, Hyun Ok Kim, Seong Woo Park, Jae Yeob Jung, Yo Han Moon, Min Sun Song
  • Publication number: 20250068855
    Abstract: The present invention relates to a context-based QA generation architecture for generating diverse QA pairs from a single context. The context-based QA generation architecture includes a latent variable generating network, an answer generating network and a question generating network. The latent variable generating network comprises multiple Bi-LSTM encoders encode the a first context, the a first question and the a first answer to generate a first context vector, a first question vector and a first answer vector, respectively, a first Multi-Layer Perceptron (MLP) generate a first question latent variable based on the first context vector and the first question vector, and a second MLP generate a first answer latent variable based on the first question latent variable and the first answer vector. The answer generating network and the question generating network are trained based on the first context, the first question latent variable and the first answer latent variable.
    Type: Application
    Filed: November 11, 2024
    Publication date: February 27, 2025
    Applicants: 42 Maru Inc., Korea Advanced Institute of Science and Technology
    Inventors: Dong Hwan Kim, Sung Ju Hwang, Seanie Lee, Dong Bok Lee, Woo Tae Jeong, Han Su Kim, You Kyung Kwon, Hyun Ok Kim
  • Patent number: 12234257
    Abstract: Provided are astersaponin I, which is a novel triterpene saponin derivative isolated and identified from a Aster koraiensis Nakai (Korean starwort) extract, and a use thereof for preventing or treating a neurodegenerative disorder.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: February 25, 2025
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Ok Yang, Hak Cheol Kwon, Li Jun Zhang, Jaeyoung Kwon, Kee Beom Ko
  • Patent number: 12201664
    Abstract: The present invention relates to a pharmaceutical composition for prevention or treatment of an allergic disease comprising a mixed extract of two or more selected from the group consisting of Asiasarum root, Platycodon root, and Cinnamomi ramulus as an active ingredient; a method for prevention or treatment of an allergic disease using the pharmaceutical composition; and a health functional food and a feed composition for improvement of an allergic disease. The composition and method of the invention can specifically inhibit the differentiation of Th2 cells and thus can be effectively used as a composition for prevention or treatment of an allergic disease.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: January 21, 2025
    Assignees: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, SEOUL NATIONAL UNIVERSITY R & DB FOUNDATION, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Ok Yang, Keon Wook Kang, Sung Won Kwon, Jeong Hill Park, Hocheol Kim, Myung Sook Oh, Dae Sik Jang, Doheon Lee, Hak Cheol Kwon, Byung Hwa Jung
  • Publication number: 20240403156
    Abstract: Concepts and technologies are disclosed herein for using user equipment data clusters and spatial temporal graphs of abnormalities for root cause analysis. User equipment data can be obtained from a cellular network. A filter having a threshold can be applied to the user equipment data to obtain records. A determination is made whether the threshold is to be adaptively adjusted. If a determination is made that the threshold is not to be adjusted, the records can be added to a record set. The records in the subset of records can be correlated based on a key to obtain a filtered and correlated version of the record set, a spatial temporal graph of abnormalities associated with the cellular network can be generated based on the filtered and correlated version of the record set, and a root cause of a failure can be determined based on the spatial temporal graph of abnormalities.
    Type: Application
    Filed: August 9, 2024
    Publication date: December 5, 2024
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Mehdi Malboubi, Hyun Ok Lee, Baofeng Jiang
  • Patent number: 12159118
    Abstract: The present invention relates to a context-based QA generation architecture, and an object of the present invention is to generate diverse QA pairs from a single context. To achieve the object, the present invention includes a latent variable generating network including at least one encoder and an artificial neural network (Multi-Layer Perceptron: MLP) and configured to train the artificial neural network using a first context, a first question, and a first answer, and generate a second question latent variable and a second answer latent variable by applying the trained artificial neural network to a second context, an answer generating network configured to generate a second answer by decoding the second answer latent variable, and a question generating network configured to generate a second question based on a second context and the second answer.
    Type: Grant
    Filed: December 18, 2023
    Date of Patent: December 3, 2024
    Assignees: 42 Maru Inc., Korea Advanced Institute of Science and Technology
    Inventors: Dong Hwan Kim, Sung Ju Hwang, Seanie Lee, Dong Bok Lee, Woo Tae Jeong, Han Su Kim, You Kyung Kwon, Hyun Ok Kim
  • Patent number: 12141532
    Abstract: Aspects of the subject disclosure may include, systems and methods, for example, including receiving a user question data in a speech format or a text format, analyzing the user question data, selecting a plurality of documents from a plurality of domains corresponding to the user question data, searching for a plurality of passages including candidates for an answer value determined as being suitable for the user question data, in the plurality of documents, obtaining candidates by inputting the user question data and the plurality of passages into a plurality of MRC question and answer units, determining the answer value based on whether a reliability value of each of the candidates exceeds a threshold value, and providing the determined answer value to a user. Other embodiments are disclosed.
    Type: Grant
    Filed: October 5, 2023
    Date of Patent: November 12, 2024
    Assignee: 42 Maru Inc.
    Inventors: Dong Hwan Kim, Hyun Ok Kim, Woo Tae Jeong
  • Publication number: 20240370136
    Abstract: Disclosed are a content box providing method and a user terminal.
    Type: Application
    Filed: June 12, 2024
    Publication date: November 7, 2024
    Inventors: You Jin KIM, Yong Jun KWON, Hyun Ok CHOI, Han Gyeol OH, Kyung Moo AN, Eun Soo HEO
  • Patent number: 12111069
    Abstract: Provided is a blade stabilization apparatus for a relief damper, and more specifically, to a blade stabilization apparatus for a relief damper which can stably maintain an opening angle of a damper blade at any angle when the damper opens or closes after the center of gravity is always aligned with a centerline of a rotating shaft in a perpendicular direction to the damper blade.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: October 8, 2024
    Inventors: Jin Soo Kim, Hyun Ok Lee
  • Publication number: 20240328666
    Abstract: Provided is a blade stabilization apparatus for a relief damper, and more specifically, to a blade stabilization apparatus for a relief damper which can stably maintain an opening angle of a damper blade at any angle when the damper opens or closes after the center of gravity is always aligned with a centerline of a rotating shaft in a perpendicular direction to the damper blade.
    Type: Application
    Filed: November 30, 2022
    Publication date: October 3, 2024
    Inventors: Jin Soo KIM, Hyun Ok Lee
  • Publication number: 20240273450
    Abstract: Disclosed is a logistics management method and apparatus using a blockchain, in which a logistics movement path can be tracked while privacy for logistics information is ensured. The disclosed logistics management method using a blockchain includes generating first transaction information for registration of a target unit including at least one child unit, transmitting the first transaction information to a blockchain network, generating second transaction information according to transfer of ownership of the target unit, and transmitting the second transaction information to the blockchain network.
    Type: Application
    Filed: November 23, 2023
    Publication date: August 15, 2024
    Inventors: Hyun Ok OH, Jong Ho KIM, Jun Hee LEE
  • Patent number: 12061517
    Abstract: Concepts and technologies are disclosed herein for using user equipment data clusters and spatial temporal graphs of abnormalities for root cause analysis. User equipment data can be obtained from a cellular network. A filter having a threshold can be applied to the user equipment data to obtain records. A determination is made whether the threshold is to be adaptively adjusted. If a determination is made that the threshold is not to be adjusted, the records can be added to a record set. The records in the subset of records can be correlated based on a key to obtain a filtered and correlated version of the record set, a spatial temporal graph of abnormalities associated with the cellular network can be generated based on the filtered and correlated version of the record set, and a root cause of a failure can be determined based on the spatial temporal graph of abnormalities.
    Type: Grant
    Filed: April 4, 2023
    Date of Patent: August 13, 2024
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Mehdi Malboubi, Hyun Ok Lee, Baofeng Jiang
  • Patent number: 12039147
    Abstract: A link shared through a chat room in a chat application is displayed. When a selection of the link is received, a content execution result corresponding to the link through an in-app browser of the chat application or an external browser distinct from the chat application is displayed. A notification for a new chat message is then displayed while the content execution result is being displayed through the in-app browser or the external browser. When a selection for the notification of the new chat message is received, the display of the content execution result is switched to a display of the chat room in which the new chat message was received. A content box, which enables access to the content execution result, is displayed on the switched display of the chat room.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: July 16, 2024
    Assignee: KAKAO CORP.
    Inventors: You Jin Kim, Yong Jun Kwon, Hyun Ok Choi, Han Gyeol Oh, Kyung Moo An, Eun Soo Heo
  • Publication number: 20240205010
    Abstract: Disclosed are a membership proof device and method for ensuring privacy. The disclosed membership proof method includes for ensuring privacy includes performing a first calculation for a user's membership proof using a zero-knowledge proof algorithm and performing a second calculation for the user's membership proof on a user value of the user using a Rivest-Shamir-Adleman (RSA) accumulator-based membership proof algorithm and transmitting results of the first and second calculations to a verifier.
    Type: Application
    Filed: December 8, 2023
    Publication date: June 20, 2024
    Inventors: Hyun Ok OH, Se Min HAN, Ji Hye KIM