Patents by Inventor Jung Ho Ahn

Jung Ho 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).

  • Publication number: 20260152773
    Abstract: The present disclosure provides a composition for biological pretreatment of hemicellulose and lignin, comprising a red oleaginous yeast strain. Further, the present disclosure discloses a method for biological pretreatment of hemicellulose and lignin using a red oleaginous yeast strain, and a method for enzymatic saccharification comprising the same. According to the present disclosure, the efficiency of producing sugars from lignocellulosic biomass can be increased by biologically pretreating hemicellulose and lignin without sugar loss.
    Type: Application
    Filed: March 28, 2025
    Publication date: June 4, 2026
    Inventors: Gyeongtaek GONG, Chang Soo KIM, Jong Hyuk PARK, Ja Kyong KO, Jung Ho AHN, Youngsoon UM
  • Publication number: 20260124251
    Abstract: The present invention relates to a composition for endometrial regeneration containing a uterus-derived decellularized extracellular matrix (UdECM) and a manufacturing method therefor. Characterized by containing uterus-derived decellularized extracellular matrix (UdECM), the composition can exhibit the effect of enhancing the regeneration, receptivity, and implantation capabilities of the endometrium.
    Type: Application
    Filed: June 15, 2023
    Publication date: May 7, 2026
    Applicants: POSTECH Research and Business Development Foundation, CHA UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Dong Woo CHO, Jin Ah JANG, Tugce SEN, Jung Ho AHN, Dan Bi LEE, Mi Hyeon BAE, Youn Jung KANG
  • Patent number: 12619745
    Abstract: A homomorphic operation system according to an embodiment includes a homomorphic encryption device configured to output a first ciphertext data generated based on a first base, a homomorphic encryption server including a storage device storing base conversion table configured to convert ciphertext data based on the first base into a second ciphertext data based on a second base and the first ciphertext data received from the homomorphic encryption device, and a homomorphic encryption operation device configured to perform a predetermined operation using the base conversion table on the first ciphertext data to convert the first ciphertext data into the second ciphertext data based on the second base.
    Type: Grant
    Filed: December 26, 2023
    Date of Patent: May 5, 2026
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Hanbyeul Na, Sangpyo Kim, Jongmin Kim, Jung Ho Ahn, Dong-Min Shin
  • Patent number: 12571010
    Abstract: The present disclosure provides a recombinant microorganism for producing PHBV, a method for preparing the same, and a method for producing PHBV using the microorganism. The present disclosure may provide a recombinant microorganism capable of producing PHBV, which is a biodegradable plastic material with superior physical properties, directly from an inexpensive single carbon source with high efficiency without supplementation of organic acid. The present disclosure can enhance the utilization of PHA, which is expensive and has limited physical properties, and can also provide a technology more effective for industrialization using an inexpensive single carbon source. The PHBV produced according to an exemplary embodiment of the present disclosure can be used not only for general-purpose inexpensive products such as ecofriendly packing materials but also as a high-value-added medical biopolymer.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: March 10, 2026
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ja Kyong Ko, Youngyun Jo, Gyeongtaek Gong, Jung Ho Ahn, Sun Mi Lee, Youngsoon Um
  • Publication number: 20260033032
    Abstract: An image sensor includes a substrate, a photoelectric conversion region inside the substrate, a first active pattern protruding from a surface of the substrate, an element isolation pattern covering at least a part of a side face of the first active pattern, a first gate electrode on the first active pattern and the element isolation pattern, a lower face of the first gate electrode being lower than an upper face of the first active pattern, a first source/drain region inside the first active pattern adjacent to one face of the first gate electrode and a second source/drain region inside the first active pattern adjacent to the other face of the first gate electrode. A first depth of the first source/drain region is greater than a second depth of the second source/drain region from an upper surface of the first active pattern.
    Type: Application
    Filed: April 18, 2025
    Publication date: January 29, 2026
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dong Hyun KIM, Sung Soo CHOI, Jung Ho AHN, Dong Chul LEE
  • Publication number: 20260015596
    Abstract: Disclosed herein are an enzyme capable of degrading a highly recalcitrant plastic or a variant thereof, a composition comprising the same, and a method of degrading a highly recalcitrant plastic using the same. In addition, according to the present disclosure, polyethylene (PE) as a highly recalcitrant plastic can be effectively degraded as well as oxidized PE, which can be useful for developing plastic waste treatment and upcycling of plastic waste.
    Type: Application
    Filed: December 16, 2024
    Publication date: January 15, 2026
    Inventors: Jung Ho AHN, Ga Hyun LEE, Do-Wook KIM, Gyeongtaek GONG, Ja Kyong KO, Youngsoon UM, Changmin SUNG, Eui Seok LIM
  • Publication number: 20260012326
    Abstract: Disclosed is a server device. The server device includes a communication unit configured to perform communication with an electronic device; a memory configured to store an artificial intelligence (AI) model for performing computation in an encrypted state; and a processor, in which the processor is configured tobased on receiving homomorphic ciphertext of CinS-encoded data obtained by performing CinS encoding on a plurality of images from the electronic device through the communication unit, transmit the encryption computation result to the electronic device through the communication unit by obtaining an encryption computation result by inputting the homomorphic ciphertext to the AI model, wherein. the AI model performs each of convolutional computation based on the CinS-encoded data and activation function computation based on slot-encoded data converted from the CinS-encoded data a plurality of times.
    Type: Application
    Filed: December 6, 2024
    Publication date: January 8, 2026
    Inventors: Jae Hyung Ju, Jaiyoung Park, Jung Hee Cheon, Jung Ho Ahn
  • Publication number: 20260012327
    Abstract: Disclosed is an electronic device. The electronic device includes: a communication unit configured to perform communication with a server device storing an artificial intelligence (AI) model that performs computation in an encrypted state; a memory configured to store a plurality of images; a processor configured to divide each of the plurality of images into a plurality of divided images and list all the divided images in a form of a one-dimensional vector to perform slot encoding, and configured to obtain CinS-encoded data in a form of a frequency signal by performing discrete Fourier transform (DFT) on slot-encoded data in units of slots corresponding to each image and transmit a homomorphic ciphertext obtained by performing homomorphic encryption on the CinS-encoded data to the server device through the communication unit; and a display.
    Type: Application
    Filed: December 6, 2024
    Publication date: January 8, 2026
    Inventors: Jae Hyung Ju, Jaiyoung Park, Jung Hee Cheon, Jung Ho Ahn
  • Publication number: 20250321876
    Abstract: A memory controller includes a plurality of computing units and a controller. The plurality of computing units perform calculations related to a matrix multiplication. The controller identify first information indicating a plurality of vectors required for the calculations with respect to a plurality of rows of a matrix, identify second information indicating at least one row to which each of the plurality of vectors corresponds among the plurality of rows, and control the plurality of computing units to perform the calculations with respect to the plurality of rows by sequentially inputting the plurality of vectors into the plurality of computing units based on the first information and the second information.
    Type: Application
    Filed: December 26, 2024
    Publication date: October 16, 2025
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Byeongho KIM, Suk Han Lee, Jung Ho Ahn, Hwayong Nam, Jaehyun Park, Sungmin Yun
  • Patent number: 12412615
    Abstract: Proposed are counter-based selective row hammer refresh apparatus and method for row hammer prevention and, more particularly, proposed are an apparatus and a method for reducing energy consumption of dynamic random access memory (DRAM) by improving counter-based algorithms for solving a row hammer problem when applying a refresh management (RFM) command that is a new command applied to the latest DRAM standards, such as DDR5, LPDDR5, and the like.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: September 9, 2025
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jung Ho Ahn, Micheal Jae Min Kim, Nam Hoon Kim, Jae Hyun Park
  • Patent number: 12338422
    Abstract: The present disclosure relates to a biomimetic chip for three-dimensionally simulating an endometrium, and an endometrium simulating method using the biomimetic chip. The biomimetic chip according to an embodiment of the present disclosure is a three-dimensional biomimetic chip including a plate, a plurality of chambers, and a plurality of posts, which are arranged between the plurality of chambers, wherein the plurality of chambers include channels in which different cells are cultured, are arranged on the plate to be parallel to each other in one direction, and are arranged adjacent to each other such that at least some sections communicate with each other.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: June 24, 2025
    Assignees: CHA UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, SUNGKWANG MEDICAL FOUNDATION
    Inventors: Youn Jung Kang, Jung Ho Ahn, Min Ji Yoon, Hwi Jae Cha, Seon Hwa Hong
  • Publication number: 20250202701
    Abstract: A method with a number-theoretic transform (NTT) operation includes allocating an element of a matrix to a data lane such that elements in a first column of the matrix corresponding to a polynomial are allocated to the data lane of a first lane group among lane groups, wherein the matrix is a square matrix, and a number of elements comprised in the matrix is N, performing a first NTT operation on a data lane of a fourth root of the N for each of the lane groups, allocating a result of the first NTT operation to the data lane such that the matrix is transposed, based on adjustment of a reading order of a buffer that stores the result of the first NTT operation, and performing a second NTT operation on the data lane of the fourth root of the N for each of the lane groups.
    Type: Application
    Filed: December 13, 2024
    Publication date: June 19, 2025
    Applicants: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Jung Ho AHN, Jongmin KIM, Sangpyo KIM
  • Publication number: 20250175106
    Abstract: Disclosed are a motor control device and method for semiconductor process equipment, more particularly a motor control technology for semiconductor process equipment capable of applying a line drive type signal processing technique to determine an error of an operation signal of a motor and compensating for the error to perform sensorless control of the motor.
    Type: Application
    Filed: November 27, 2024
    Publication date: May 29, 2025
    Applicants: SEMES CO., LTD., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Chan Young CHOI, Dong Bock LEE, Dae Hee WON, Ju LEE, In Yeol YUN, Hyun Woo KIM, Jung Ho AHN
  • Publication number: 20240362343
    Abstract: A homomorphic operation system according to an embodiment includes a homomorphic encryption device configured to output a first ciphertext data generated based on a first base, a homomorphic encryption server including a storage device storing base conversion table configured to convert ciphertext data based on the first base into a second ciphertext data based on a second base and the first ciphertext data received from the homomorphic encryption device, and a homomorphic encryption operation device configured to perform a predetermined operation using the base conversion table on the first ciphertext data to convert the first ciphertext data into the second ciphertext data based on the second base.
    Type: Application
    Filed: December 26, 2023
    Publication date: October 31, 2024
    Applicant: Seoul National University R&DB Foundation
    Inventors: HANBYEUL NA, SANGPYO KIM, JONGMIN KIM, JUNG HO AHN, DONG-MIN SHIN
  • Publication number: 20240352401
    Abstract: The present disclosure discloses a strain having resistance by neutralizing furfural, an inhibitor derived from lignocellulosic biomass, based on a technique using aldehyde dehydrogenase and a method of using the same. According to the present disclosure, furfural, an inhibitor derived from lignocellulosic biomass, is neutralized based on a technique using aldehyde dehydrogenase, so that a resistant strain overexpresses aldehyde dehydrogenase (EcAldH) in Yarrowia lipolytica, which has the ability to produce yeast oil, and has resistance to furfural, a biomass-derived inhibitor. Accordingly, even in the medium containing furfural, it can provide excellent strain growth and yeast oil production ability.
    Type: Application
    Filed: November 28, 2023
    Publication date: October 24, 2024
    Inventors: Sun Mi LEE, Jiwon Kim, Hyeoncheol Son, Ja Kyong Ko, Gyeongtaek Gong, Jung Ho Ahn, Youngsoon Um
  • Publication number: 20240232581
    Abstract: A device including processors configured to execute instructions and memories storing the instructions, which when executed by the processors configure the processors to perform an operation for training a transformer model having a plurality of encoders and a plurality of decoders by configuring the processors to identify the batches of training data into a plurality of micro-batches, select layer pairs for the plurality of micro-batches, assemble a processing order of the layer pairs, determining resource information to be allocated to the layer pairs, and allocate resources to the layer pairs based on the determined resource information to be allocated to the layer pairs, dependent con the processing order of the layer pairs.
    Type: Application
    Filed: August 16, 2023
    Publication date: July 11, 2024
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Seoul National University R&DB Foundation
    Inventors: Jung Ho AHN, Sun Jung LEE, Jae Wan CHOI
  • Publication number: 20240184630
    Abstract: A device and method with batch normalization are provided. An accelerator includes: core modules, each core module including a respective plurality of cores configured to perform a first convolution operation using feature map data and a weight; local reduction operation modules adjacent to the respective core modules, each including a respective plurality of local reduction operators configured to perform a first local operation that obtains first local statistical values of the corresponding core module; a global reduction operation module configured to perform a first global operation that generates first global statistical values of the core module based on the first local statistical values of the core modules; and a normalization operation module configured to perform a first normalization operation on the feature map data based on the first global statistical values.
    Type: Application
    Filed: December 1, 2023
    Publication date: June 6, 2024
    Applicants: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Jung Ho AHN, Sun Jung LEE, Jae Wan CHOI, Seung Hwan HWANG
  • Publication number: 20240135147
    Abstract: A device including processors configured to execute instructions and memories storing the instructions, which when executed by the processors configure the processors to perform an operation for training a transformer model having a plurality of encoders and a plurality of decoders by configuring the processors to identify the batches of training data into a plurality of micro-batches, select layer pairs for the plurality of micro-batches, assemble a processing order of the layer pairs, determining resource information to be allocated to the layer pairs, and allocate resources to the layer pairs based on the determined resource information to be allocated to the layer pairs, dependent con the processing order of the layer pairs.
    Type: Application
    Filed: August 15, 2023
    Publication date: April 25, 2024
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Seoul National University R&DB Foundation
    Inventors: Jung Ho AHN, Sun Jung LEE, Jae Wan CHOI
  • Patent number: 11966344
    Abstract: An accelerator includes: a memory configured to store input data; a plurality of shift buffers each configured to shift input data received sequentially from the memory in each cycle, and in response to input data being stored in each of internal elements of the shift buffer, output the stored input data to a processing element (PE) array; a plurality of backup buffers each configured to store input data received sequentially from the memory and transfer the stored input data to one of the shift buffers; and the PE array configured to perform an operation on input data received from one or more of the shift buffers and on a corresponding kernel.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: April 23, 2024
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB FOUNDATION
    Inventors: Seung Wook Lee, Hweesoo Kim, Jung Ho Ahn
  • Publication number: 20240117389
    Abstract: The present disclosure is to provide a method capable of producing an organic acid in high yield from an acetic acid strain using synthesis gas as a substrate. According to the present disclosure, the productivity of metabolites with C2 to C6 carbon atoms derived from synthesis gas and the selectivity of hexanoic acid production among metabolites can be improved through a first fermentation step of simultaneously providing a substrate comprising synthesis gas and sugar; and a second fermentation step of semi-mixotrophic fermentation of providing only the substrate comprising the synthesis gas. Therefore, the disclosure can contribute to sustainable chemical production using synthesis gas.
    Type: Application
    Filed: September 19, 2023
    Publication date: April 11, 2024
    Inventors: Youngsoon UM, Deurim YUN, Sun Mi LEE, Gyeongtaek GONG, Ja Kyong KO, Jung Ho AHN