Patents by Inventor Chang Sik Lee

Chang Sik Lee 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
  • Patent number: 11972839
    Abstract: A memory system includes a memory device including an interface circuit and a semiconductor memory, and a controller to generate a command for controlling the memory device. The interface circuit receives the command from the controller; determines whether the command is for the semiconductor memory or the interface circuit; and when it is determined that the command is for the interface circuit, performs a blocking operation to block transfer of the command between the interface circuit and the semiconductor memory and performs an internal operation of the interface circuit. The internal operation includes a signal controlling operation, a training operation, a read operation, an on-die termination operation, a ZQ calibration operation, or a driving force control operation.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: April 30, 2024
    Assignee: SK hynix Inc.
    Inventors: Chang Kyun Park, Young Sik Koh, Seung Jin Park, Dong Hyun Lee
  • Publication number: 20240131569
    Abstract: According to an exemplary embodiment of the present disclosure, disclosed is an aluminum coated blank that includes a first coated steel sheet; a second coated steel sheet connected to the first coated steel sheet; and a joint portion that connects the first coated steel sheet to the second coated steel plate at a boundary between the first coated steel sheet and the second coated steel sheet.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Inventors: Chang Yong Lee, Sung Ryul Kim, Jeong Seok Kim, Joo Sik Hyun, Yoo Dong Chung
  • Patent number: 11964161
    Abstract: Disclosed is a plasma generator. The plasma generator may include a gripping portion including at least one interface unit configured to receive an input from a user; a head portion including a plasma generating portion configured to generate the plasma; a first cartridge configured to detachably couple at a first end of the head portion and generate the plasma over a predetermined region; and a light irradiation portion provided at a second end of the head portion.
    Type: Grant
    Filed: August 4, 2023
    Date of Patent: April 23, 2024
    Assignee: GCS Co., Ltd.
    Inventors: Chang Sik Kim, Tae Yong Kim, Myeong Woo Kim, Hyuk Namgoong, Ha Yun Lee
  • Patent number: 11958844
    Abstract: The present invention relates to novel compounds having a histone deacetylase 6 (HDAC6) inhibitory activity, optical isomers thereof or pharmaceutically acceptable salts thereof, a pharmaceutical use thereof, and a method for preparing the same. According to the present invention, the novel compounds, optical isomers thereof or pharmaceutically acceptable salts thereof have the histone deacetylase 6 (HDAC6) inhibitory activity, and are effective in preventing or treating HDAC6-related diseases, comprising infectious diseases; neoplasm; internal secretion; nutritional and metabolic diseases; mental and behavioral disorders; neurological diseases; eye and ocular adnexal diseases; circulatory diseases; respiratory diseases; digestive diseases; skin and subcutaneous tissue diseases; musculoskeletal system and connective tissue diseases; and teratosis or deformities, and chromosomal aberration.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: April 16, 2024
    Assignee: Chong Kun Dang Pharmaceutical Corp.
    Inventors: Chang Sik Lee, Jung Taek Oh, Hokeun Yun, Hyeseung Song, Hyunjin Michael Kim
  • Publication number: 20240086603
    Abstract: A method of reinforcement learning of a neural network device for generating a verification vector for verifying a circuit design comprising a circuit block includes inputting a test vector to the circuit block, generating one or more rewards based on a coverage corresponding to the test vector, the coverage being determined based on a state transition of the circuit block based on the test vector, and applying the one or more rewards to a reinforcement learning.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Applicant: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: In HUH, Jeong-hoon KO, Hyo-jin CHOI, Seung-ju KIM, Chang-wook JEONG, Joon-wan CHAI, Kwang-II PARK, Youn-sik PARK, Hyun-sun PARK, Young-min OH, Jun-haeng LEE, Tae-ho LEE
  • Publication number: 20240074258
    Abstract: An electronic device includes a display device, which may be fabricated using a described method. The display device includes a glass substrate including a first surface, a second surface opposite the first surface, and a side surface between the first surface and the second surface, an outermost structure on the first surface of the glass substrate and located adjacent to an edge of one side of the glass substrate, and a display area including a plurality of light emitting areas on the first surface of the glass substrate and located farther from the edge of the one side of the glass substrate than the outermost structure is. A minimum distance from the side surface of the glass substrate to the outermost structure is equal to 130 ?m or less.
    Type: Application
    Filed: May 5, 2023
    Publication date: February 29, 2024
    Inventors: Wan Jung KIM, Dong Jo KIM, Sun Hwa KIM, Young Ji KIM, Chang Sik KIM, Kyung Ah NAM, Hyo Young MUN, Yong Seung PARK, Yi Seul UM, Dae Sang YUN, Kwan Hee LEE, So Young LEE, Young Hoon LEE, Young Seo CHOI, Sun Young KIM, Ji Won SOHN, Do Young LEE, Seung Hoon LEE
  • Publication number: 20240069875
    Abstract: Disclosed herein are a neural network model deployment method and apparatus for providing a deep learning service. The neural network model deployment method may include providing a specification wizard to a user, searching for and training a neural network based on a user requirement specification that is input through the specification wizard, generating a neural network template code based on the user requirement specification and the trained neural network, converting the trained neural network into a deployment neural network that is usable in a target device based on the user requirement specification, and deploying the deployment neural network to the target device.
    Type: Application
    Filed: June 14, 2023
    Publication date: February 29, 2024
    Inventors: Jae-Bok PARK, Chang-Sik CHO, Kyung-Hee LEE, Ji-Young KWAK, Seon-Tae KIM, Hong-Soog KIM, Jin-Wuk SEOK, Hyun-Woo CHO
  • Patent number: 11915790
    Abstract: A memory system includes a memory device including an interface circuit and a semiconductor memory, and a controller to generate a command for controlling the memory device. The interface circuit receives the command from the controller; determines whether the command is for the semiconductor memory or the interface circuit; and when it is determined that the command is for the interface circuit, performs a blocking operation to block transfer of the command between the interface circuit and the semiconductor memory and performs an internal operation of the interface circuit. The internal operation includes a signal controlling operation, a training operation, a read operation, an on-die termination operation, a ZQ calibration operation, or a driving force control operation.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: February 27, 2024
    Assignee: SK hynix Inc.
    Inventors: Chang Kyun Park, Young Sik Koh, Seung Jin Park, Dong Hyun Lee
  • Publication number: 20230295142
    Abstract: The present invention relates to a novel compound having a selective HDAC6 inhibitory activity, stereoisomers thereof, pharmaceutically acceptable salts thereof, a use thereof in preparation of a therapeutic medicament, a pharmaceutical composition containing the same, a therapeutic method using the composition, and a method for preparing the same, wherein the novel compound having the selective HDAC6 inhibitory activity is represented by chemical formula (I) below.
    Type: Application
    Filed: September 1, 2021
    Publication date: September 21, 2023
    Inventors: Chang Sik Lee, Jung Taek Oh, Hokeun Yun, Hyeseung Song, Hyunjin Michael Kim
  • Patent number: 11674713
    Abstract: An air conditioner of present invention comprises a housing having an outer panel forming the exterior and an opening formed on the outer panel, a heat exchanger configured to exchange heat with air flowing into the housing, and a door unit configured to open or close the opening by moving forward or backward from the opening through which the heat exchanged air is discharged. Wherein the door unit comprises a door blade configured to open or close the opening, a door operating part configured to move the door blade forward or backward, and a controller configured to control the air discharged from the opening to be moved forward from the opening in a straight line or to be discharged radially from the opening by controlling a distance between the door blade and the opening.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: June 13, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Hyun Chun, Jin Gyun Kim, Seong Deok Cheon, Sung Bum Kang, Jun Seok Kwon, Sung Jae Kim, Jong Whal Kim, Ji Hong Kim, Seung Won Oh, Sang Ki Yoon, Yeon Seob Yun, Won Hee Lee, Chang Sik Lee, Hyun Joo Jeon, Jae Rim Jung, Chang Woo Jung, Weon Seok Choi
  • Patent number: 11668473
    Abstract: Disclosed herein is an air conditioner comprising, a housing in which an outlet is formed, a heat exchanger positioned inside the housing, and a fan positioned behind the heat exchanger. The fan configured to blow air to the heat exchanger. And a filter assembly coupled to the housing. The filter assembly configured to filter air entering the fan. The filter assembly covering a rear portion of the fan.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: June 6, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Jae Kim, Jin Gyun Kim, Young Tae Song, Hae Gyun Shin, Chang Sik Lee, Chang Woo Jung, Seo Young Cho, Sung Hyun Chun
  • Publication number: 20230092890
    Abstract: The present invention relates to 1,3,4-oxadiazole derivative compounds having a histone deacetylase 6 (HDAC6) inhibitory activity, stereoisomers thereof or pharmaceutically acceptable salts thereof, a use thereof in preparation of a medicament, a pharmaceutical composition comprising the same, a therapeutic method using the composition, and a method for preparing the same, and the 1,3,4-oxadiazole derivative compounds are represented by a following chemical formula (I).
    Type: Application
    Filed: May 29, 2020
    Publication date: March 23, 2023
    Inventors: Chang Sik Lee, Jung Taek Oh, Hokeun Yun, Hyeseung Song, Hyunjin Michael Kim
  • Patent number: 11610133
    Abstract: An apparatus for producing an infrared spectrum according to one example of the present disclosure includes: a toxic chemical gas and background infrared spectrum acquisition portion of acquiring a background of a target area and an infrared spectroscopic signal of a gas contaminant plume existing in the background; and a toxic chemical gas infrared spectrum generation portion of training a Generative Adversarial Network (GAN) using acquired background radiation intensity data as learning data, and automatically generating a toxic chemical gas simulation infrared spectrum signal according to an environment setting inputted from a user using a learned GAN. According to the present disclosure, there is an effect that an infrared spectrum of atmosphere contaminated by a toxic chemical gas may be acquired without outdoor experiments using a real toxic chemical gas.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: March 21, 2023
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Chang Sik Lee, Jong Seon Kim, Hyeon Jeong Kim
  • Publication number: 20230079386
    Abstract: The present invention relates to novel compounds having a histone deacetylase 6 (HDAC6) inhibitory activity, stereoisomers thereof or pharmaceutically acceptable salts thereof, a medicinal use thereof, and a method for preparing the same. The novel compounds according to the present invention, stereoisomers thereof or pharmaceutically acceptable salts thereof have the histone deacetylase 6 (HDAC6) inhibitory activity, and are effective in preventing or treating HDAC6-related diseases, comprising infectious diseases; neoplasm; endocrinopathy; nutritional and metabolic diseases; mental and behavioral disorders; neurological diseases; eye and ocular adnexal diseases; circulatory diseases; respiratory diseases; digestive diseases; skin and subcutaneous tissue diseases; musculoskeletal system and connective tissue diseases; and teratosis or deformities, or chromosomal aberration.
    Type: Application
    Filed: May 29, 2020
    Publication date: March 16, 2023
    Inventors: Chang Sik Lee, Jung Taek Oh, Hokeun Yun, Hyeseung Song, Hyunjin Michael Kim
  • Patent number: 11521066
    Abstract: A processor partitions a deep neural network having a plurality of exit points and at least one partition point in a branch corresponding to each of the exit points, for distributed processing in an edge device and a cloud. The processor sets environmental variables and training variables for training, selects an action to move at least one of an exit point and a partition point from a combination of the exit point and the partition point corresponding to a current state, performs the training by accumulating experience data using a reward according to the selected action and then moves to a next state, and outputs a combination of an optimal exit point and a partition point as a result of the training.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: December 6, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang Sik Lee, Sung Back Hong, Seungwoo Hong, Ho Yong Ryu
  • Patent number: 11346577
    Abstract: An air conditioner of present invention comprises a housing having an outer panel forming the exterior and an opening formed on the outer panel, a heat exchanger configured to exchange heat with air flowing into the housing, and a door unit configured to open or close the opening by moving forward or backward from the opening through which the heat exchanged air is discharged. Wherein the door unit comprises a door blade configured to open or close the opening, a door operating part configured to move the door blade forward or backward, and a controller configured to control the air discharged from the opening to be moved forward from the opening in a straight line or to be discharged radially from the opening by controlling a distance between the door blade and the opening.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: May 31, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Hyun Chun, Jin Gyun Kim, Seong Deok Cheon, Sung Bum Kang, Jun Seok Kwon, Sung Jae Kim, Jong Whal Kim, Ji Hong Kim, Seung Won Oh, Sang Ki Yoon, Yeon Seob Yun, Won Hee Lee, Chang Sik Lee, Hyun Joo Jeon, Jae Rim Jung, Chang Woo Jung, Weon Seok Choi
  • Patent number: 11346575
    Abstract: An air conditioner of present invention comprises a housing having an outer panel forming the exterior and an opening formed on the outer panel, a heat exchanger configured to exchange heat with air flowing into the housing, and a door unit configured to open or close the opening by moving forward or backward from the opening through which the heat exchanged air is discharged. Wherein the door unit comprises a door blade configured to open or close the opening, a door operating part configured to move the door blade forward or backward, and a controller configured to control the air discharged from the opening to be moved forward from the opening in a straight line or to be discharged radially from the opening by controlling a distance between the door blade and the opening.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: May 31, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Hyun Chun, Jin Gyun Kim, Seong Deok Cheon, Sung Bum Kang, Jun Seok Kwon, Sung Jae Kim, Jong Whal Kim, Ji Hong Kim, Seung Won Oh, Sang Ki Yoon, Yeon Seob Yun, Won Hee Lee, Chang Sik Lee, Hyun Joo Jeon, Jae Rim Jung, Chang Woo Jung, Weon Seok Choi
  • Patent number: 11346576
    Abstract: An air conditioner of present invention comprises a housing having an outer panel forming the exterior and an opening formed on the outer panel, a heat exchanger configured to exchange heat with air flowing into the housing, and a door unit configured to open or close the opening by moving forward or backward from the opening through which the heat exchanged air is discharged. Wherein the door unit comprises a door blade configured to open or close the opening, a door operating part configured to move the door blade forward or backward, and a controller configured to control the air discharged from the opening to be moved forward from the opening in a straight line or to be discharged radially from the opening by controlling a distance between the door blade and the opening.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: May 31, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Hyun Chun, Jin Gyun Kim, Seong Deok Cheon, Sung Bum Kang, Jun Seok Kwon, Sung Jae Kim, Jong Whal Kim, Ji Hong Kim, Seung Won Oh, Sang Ki Yoon, Yeon Seob Yun, Won Hee Lee, Chang Sik Lee, Hyun Joo Jeon, Jae Rim Jung, Chang Woo Jung, Weon Seok Choi
  • Publication number: 20220092431
    Abstract: An apparatus for producing an infrared spectrum according to one example of the present disclosure includes: a toxic chemical gas and background infrared spectrum acquisition portion of acquiring a background of a target area and an infrared spectroscopic signal of a gas contaminant plume existing in the background; and a toxic chemical gas infrared spectrum generation portion of training a Generative Adversarial Network (GAN) using acquired background radiation intensity data as learning data, and automatically generating a toxic chemical gas simulation infrared spectrum signal according to an environment setting inputted from a user using a learned GAN. According to the present disclosure, there is an effect that an infrared spectrum of atmosphere contaminated by a toxic chemical gas may be acquired without outdoor experiments using a real toxic chemical gas.
    Type: Application
    Filed: December 16, 2020
    Publication date: March 24, 2022
    Inventors: Chang Sik LEE, Jong Seon KIM, Hyeon Jeong KIM