Patents by Inventor Kyu Ahn

Kyu 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: 20240139669
    Abstract: A method for preparing hydrogen from ammonia by using pressure swing adsorption (PSA) is provided. The method for preparing hydrogen from ammonia, of the present invention, comprises the steps of: generating hydrogen and nitrogen from ammonia gas through a high-temperature reaction by using a catalyst; performing purification by selectively adsorbing unreacted ammonia gas from a gas containing unreacted ammonia and low-purity hydrogen and nitrogen, which are supplied through the high-temperature reaction and cooled; and performing purification by separating high-purity hydrogen from the gas consisting of low-purity hydrogen and nitrogen, wherein purification is carried out by using a carbon molecular sieve (CMS) adsorbent so as to desorb the unreacted ammonia gas through PSA.
    Type: Application
    Filed: November 10, 2022
    Publication date: May 2, 2024
    Applicants: POSCO CO., LTD, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Chi-Kyu Ahn, Chang-Houn Rhee, Gook-Hee Kim, Man-Su Lee, Hai-Woong Park, Beom-Sik Kim, Seong-Min Son
  • Publication number: 20240136290
    Abstract: A semiconductor device having simplicity in design and improved performance and methods for fabricating the same are provided. The semiconductor device includes a substrate including a frontside and a backside opposite the frontside, an electronic device on the frontside of the substrate, an interlayer insulating layer covering the electronic device, a frontside wiring structure on the interlayer insulating layer, a backside wiring structure on the backside of the substrate, and at least one unit chain connecting the electronic device with the backside wiring structure, the unit chain including a through plug passing through the substrate, a connection contact on the interlayer insulating layer, a first chain plug passing through the interlayer insulating layer to connect the through plug with the connection contact, and a second chain plug passing through the interlayer insulating layer to be connected to the through plug.
    Type: Application
    Filed: May 23, 2023
    Publication date: April 25, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jee Woong KIM, Jin Kyu KIM, Ho Jun KIM, Jae Hyun AHN, So Ra YOU
  • Publication number: 20240125365
    Abstract: A pad liner includes a first pad clip that surrounds and is coupled to a side protrusion protruding in a lateral direction from a brake pad, and a torque support located under the first pad clip and between a side surface of the brake pad and the caliper body. The torque support supports a braking torque. The first pad clip includes a reference surface located on one of a top surface and a bottom surface of the side protrusion, a vertical elastic portion located on an opposite side from the reference surface that pressurizes the side protrusion in a direction of the reference surface, and a clip side portion that connects the reference surface and the vertical elastic portion and surrounds a side surface of the side protrusion. The pad liner minimizes a vertical gap and movement of the brake pad.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 18, 2024
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Kang Kuk LEE, Seong Hwan AHN, Wan Kyu LEE, In Ho LEE, Yeong Bin CHO
  • Patent number: 11952477
    Abstract: A curable composition includes a curable resin and a magnetic body, wherein the magnetic body comprises magnetic particles and a surface treatment agent present on a surface of the magnetic particles. The curable composition has low viscosity, and fluidity, and capable of effectively cured without causing curing shrinkage or the like to form a cured product having desired physical properties.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: April 9, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Sang Bum Ahn, Jin Kyu Lee
  • Publication number: 20240097238
    Abstract: A battery pack is advantageous for effective control and maintenance of thermal events. A battery pack according to one aspect of the present disclosure may include a battery module having one or more battery cells; a fire extinguishing tank holding a fire extinguishing liquid, disposed on top of the battery module and having a through hole formed therein; and a cover member installed in the through hole of the fire extinguishing tank and configured to open or close the through hole according to a change in internal pressure of the fire extinguishing tank.
    Type: Application
    Filed: December 20, 2022
    Publication date: March 21, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jong-Kyu AHN, Ki-Youn KIM, Hyeon-Kyu KIM, Jeong-O MUN, Gi-Dong PARK, Young-Won YUN, Seong-Ju LEE, Jae-Ki LEE
  • Publication number: 20240087956
    Abstract: A semiconductor device includes a substrate including an active pattern, a first interlayer dielectric layer on the substrate, the first interlayer dielectric layer including a recess on an upper portion thereof, and a lower connection line in the first interlayer dielectric layer, the lower connection line being electrically connected to the active pattern, and the lower connection line including a conductive pattern, the recess of the first interlayer dielectric layer selectively exposing a top surface of the conductive pattern, and a barrier pattern between the conductive pattern and the first interlayer dielectric layer, the first interlayer dielectric layer covering a top surface of the barrier pattern.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Woojin LEE, Hoon Seok SEO, Sanghoon AHN, Kyu-Hee HAN
  • Patent number: 11928588
    Abstract: Disclosed is an in-memory device for operation of a multi-bit weight. A multi-bit memory cell array according to an exemplary embodiment of the present invention includes at least one multi-bit unit which stores input data based on an input signal and outputs a per-group sum value summed for every group by applying a multi-bit weight to the stored input data; and a final summation unit which is connected to at least one multi-bit unit, adjusts a ratio for every group to receive the peer-group sum value, and outputs a final output value by summing the input per-group sum value.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: March 12, 2024
    Assignee: UIF (University Industry Foundation), Yonsei University
    Inventors: Seong Ook Jung, Hong Keun Ahn, Young Kyu Lee
  • Publication number: 20240071500
    Abstract: Memory array structures, and methods of their formation, might include a first memory cell having a first control gate and an adjacent first portion of a charge-blocking structure, a second memory cell having a second control gate and an adjacent second portion of the charge-blocking structure, and a first dielectric material between the first control gate and the second control gate, and adjacent to a third portion of the charge-blocking structure that is between the first and second portions of the charge-blocking structure. The third portion of the charge-blocking structure might include a second dielectric material and a third dielectric material different than the second dielectric material, and the first portion of the charge-blocking structure and the second portion of the charge-blocking structure might each include the third dielectric material and a fourth dielectric material different than the second dielectric material. Apparatus might include such memory array structures.
    Type: Application
    Filed: August 15, 2023
    Publication date: February 29, 2024
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Jae Kyu Choi, Jin Yue, Kyubong Jung, Albert Fayrushin, Jae Young Ahn, Jun Kyu Yang
  • Patent number: 11613631
    Abstract: Provided is an all-season tire tread rubber composition in which braking performance and wear performance are secured at the same time. A rubber composition for tire tread according to the present disclosure comprises: 100 parts by weight of raw rubber comprising solution polymerized styrene-butadiene rubber which has a styrene content of 20 to 30 wt % and a vinyl content within butadiene of 20 to 30 wt %, and is manufactured by a continuous method; 90 to 110 parts by weight of silica; and 20 to 40 parts by weight of modified liquid butadiene rubber.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: March 28, 2023
    Assignee: HANKOOK TIRE & TECHNOLOGY CO., LTD.
    Inventors: Ii Jin Kim, Ki Hyun Kim, Hyung Jae Lee, Won Ho Kim, Byung Kyu Ahn, Dong Hyuk Kim
  • Publication number: 20230025008
    Abstract: The present invention relates to a novel method for preparing lithium oxide. In the present invention, the particle size and shape of lithium oxide may be controlled during the preparing process. In addition, the present invention relates to lithium oxide with controlled particle size and shape prepared by this preparing method.
    Type: Application
    Filed: December 7, 2020
    Publication date: January 26, 2023
    Applicants: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Jae Myung LEE, Jun-Kyu AHN, Woo Chul JUNG, Kee Uek JEUNG, Jung Kwan PARK, Sang Won KIM
  • Publication number: 20220263171
    Abstract: A battery module includes a battery cell assembly having a plurality of battery cells stacked on each other, a pair of end plates provided at both front and rear sides of the battery cell assembly, a pair of buffer plates provided to the pair of end plates and disposed at both front and rear sides of the battery cell assembly; and at least one pressing plate provided between the pair of buffer plates and disposed between the battery cells of the battery cell assembly. The pair of buffer plates and the at least one pressing plate are configured such that front surfaces and rear surfaces thereof in a front and rear direction of the battery cell assembly have a flat shape.
    Type: Application
    Filed: January 19, 2021
    Publication date: August 18, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Young-Bin IM, In-Jae GANG, Jong-Kyu AHN, Kyung-Hyun BAE, Jin-Kyu SHIN
  • Publication number: 20220013773
    Abstract: The present invention relates to a lithium compound, a nickel-based cathode active material, a method for preparing lithium oxide, a method for preparing a nickel-based cathode active material, and a secondary battery using same. The lithium compound includes primary particles of Li2O having an average particle diameter (D50) of less than or equal to 5 ?m; and secondary particles composed of the primary particles.
    Type: Application
    Filed: October 11, 2019
    Publication date: January 13, 2022
    Inventors: Jae Myung Lee, Jun-Kyu Ahn, Sang Won Kim, Heok Yang
  • Patent number: 11171392
    Abstract: A battery module, which includes: a plurality of battery cells stacked on one another; and a bus bar assembly electrically connected to electrode leads of the plurality of battery cells, wherein the electrode leads of the plurality of battery cells are bent at least once to secure a predetermined length and are unbent at least partially due to inflation caused by swelling of the plurality of battery cells.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: November 9, 2021
    Assignee: LG CHEM, LTD.
    Inventors: In-Jae Gang, Jung-Il Park, Jong-Kyu Ahn
  • Publication number: 20210179823
    Abstract: Provided is an all-season tire tread rubber composition in which braking performance and wear performance are secured at the same time. A rubber composition for tire tread according to the present disclosure comprises: 100 parts by weight of raw rubber comprising solution polymerized styrene-butadiene rubber which has a styrene content of 20 to 30 wt % and a vinyl content within butadiene of 20 to 30 wt %, and is manufactured by a continuous method; 90 to 110 parts by weight of silica; and 20 to 40 parts by weight of modified liquid butadiene rubber.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 17, 2021
    Inventors: Il Jin Kim, Ki Hyun Kim, Hyung Jae Lee, Won Ho Kim, Byung Kyu Ahn, Dong Hyuk Kim
  • Patent number: 10972129
    Abstract: A check node update processor of the low density parity check (LDPC) code decoder includes: an approximate first minimum (AFM) condition check unit which checks whether a predetermined specific condition is satisfied, and a check node determining unit which sets an approximate minimum value as a size of an entire check node output when it is determined that the specific condition is satisfied as a checking result in the AFM condition check unit and calculates a first minimum value as a true minimum value and sets a second minimum value as an approximate minimum value when it is determined that the specific condition is not satisfied to determine a size of the check node output.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: April 6, 2021
    Assignee: Korea University Research and Business Foundation
    Inventors: Jun Heo, Sung Sik Yoon, Byung Kyu Ahn
  • Patent number: 10944139
    Abstract: Disclosed is battery module, which includes a cell assembly having battery cells arranged side by side in one direction and air channels formed at the intervals of the battery cells, and an inlet duct mounted to a front surface of the cell assembly at which the air channels are located to distribute a cooling air to the air channels. The inlet duct includes an air inlet disposed to face air channels, which are located in a central region in the arrangement of the air channels, at a location spaced apart therefrom, a cooling fan being installed at the air inlet to introduce the cooling air; and a guide vane composed of a plurality of plate barriers respectively extending obliquely toward the air channels based on the air inlet at a predetermined acute angle to distribute the flow of air.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: March 9, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Jin-Moo Nam, Jin-Kyu Shin, Jung-Il Park, Jong-Kyu Ahn, Gyung-Soo Kang
  • Patent number: 10917120
    Abstract: The present disclosure relates to a low-complexity syndrome based decoding apparatus and method and a low-complexity syndrome based decoding apparatus includes: a hard decision unit which performs hard decision on a current input value to output a hard decision vector; a syndrome calculator which performs a syndrome operation on the hard decision vector and determines an error type of the hard decision vector based on the syndrome operation result; and a decoder which selects a predetermined decoding algorithm in accordance with the error type to perform the decoding, and the error type includes at least one of no error, a single error, and a double error.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: February 9, 2021
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Jun Heo, Byung Kyu Ahn, Jong Hyun Lee
  • Publication number: 20200168753
    Abstract: The present invention relates to an encapsulant capable of reducing potential-induced degradation (PID). The encapsulant is used to seal a solar cell to form a photovoltaic module, in which silica gel is dispersed in the encapsulant as a sodium ion adsorbent. Since the silica gel that is highly transparent is used as the sodium ion adsorbent, it is possible to prevent PID attributable to sodium ions and to prevent deterioration in photovoltaic efficiency of the photovoltaic module. Since the silica gel has a high specific surface area, it is possible to adsorb sodium ions with a small amount of the silica gel.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 28, 2020
    Inventors: Young-joo Eo, Jihye Gwak, Se-jin Ahn, Ara Cho, Jin-su Yoo, Jun-sik Cho, Seung-kyu Ahn, Joo-hyung Park, Kihwan Kim, Donghyeop Shin, Soo Min Song, Inyoung Jeong, Sang Min Lee
  • Patent number: 10640490
    Abstract: The present invention provides a diaminopyrimidine derivative or its pharmaceutically acceptable salt, a process for the preparation thereof, a pharmaceutical composition comprising the same, and a use thereof. The diaminopyrimidine derivative or its pharmaceutically acceptable salt functions as a 5-HT4 receptor agonist, and therefore can be usefully applied for preventing or treating dysfunction in gastrointestinal motility, one of the gastrointestinal diseases, such as gastroesophageal reflux disease (GERD), constipation, irritable bowel syndrome (IBS), dyspepsia, post-operative ileus, delayed gastric emptying, gastroparesis, intestinal pseudo-obstruction, drug-induced delayed transit, or diabetic gastric atony.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: May 5, 2020
    Assignee: Yuhan Corporation
    Inventors: Hyun-Joo Lee, Dong-Hoon Kim, Tae-Kyun Kim, Young-Ae Yoon, Jae-Young Sim, Myung-Hun Cha, Eun-Jung Jung, Kyoung-Kyu Ahn, Tai-Au Lee
  • Patent number: D1003234
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: October 31, 2023
    Inventors: Hyeon-Kyu Kim, Gi-Dong Park, Jong-Kyu Ahn, Kyu-Heok Yoon, Young-Won Yun, Dong-Geun Lee, Seong-Ju Lee, Jae-Ki Lee