Patents by Inventor Cheul Kim

Cheul Kim 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: 11938239
    Abstract: A sterilizing apparatus is disclosed. A sterilizing apparatus according to one embodiment comprises: a cover main body unit having an accommodation space formed therein so as to accommodate a device to be sterilized, wherein the accommodation space is open toward a bottom surface on which the device to be sterilized is disposed; an ultraviolet light emitting diode provided on a surface facing the bottom surface of the cover main body unit, and turned on so as to emit ultraviolet rays toward the accommodation space; a power supply unit for supplying power to the ultraviolet light emitting diode so as to turn on the ultraviolet light emitting diode; and a control unit for controlling an operation of the power supply unit.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: March 26, 2024
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Rack Kim, Hee Cheul Jung, Sang Wook Jung, Hee Ho Bae, Seong Heon Kim
  • Patent number: 11865511
    Abstract: The present disclosure relates to a preparation method for a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. According to the preparation method of the present disclosure, a porous super absorbent polymer sheet can be prepared by a simplified process.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: January 9, 2024
    Inventors: Ki Youl Yoon, Gi Cheul Kim, Hyeon Choi, Hyo Sook Joo, Ju Eun Kim
  • Patent number: 11731105
    Abstract: The present invention relates to a super absorbent polymer. The super absorbent polymer contains polymer particles formed of large pores in a certain amount or more, and thus can exhibit large surface area and excellent initial absorption capacity. Therefore, when the super absorbent polymer is used, it can provide a sanitary material such as a diaper or a sanitary napkin which can quickly absorb body fluids and impart a dry and soft touch feeling.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: August 22, 2023
    Inventors: Ki Hyun Kim, Kyu Pal Kim, Gi Cheul Kim, Seul Ah Lee, Sang Gi Lee
  • Publication number: 20230259283
    Abstract: A first circuit formed on a first semiconductor substrate is wafer-bonded to a second circuit formed on a second memory circuit, wherein the first circuit includes quasi-volatile or non-volatile memory circuits and wherein the second memory circuit includes fast memory circuits that have lower read latencies than the quasi-volatile or non-volatile memory circuits, as well as logic circuits. The volatile and non-volatile memory circuits may include static random-access memory (SRAM) circuits, dynamic random-access memory (DRAM) circuits, embedded DRAM (eDRAM) circuits, magnetic random-access memory (MRAM) circuits, embedded MRAM (eMRAM), or any suitable combination of these circuits.
    Type: Application
    Filed: April 24, 2023
    Publication date: August 17, 2023
    Inventors: Youn Cheul Kim, Richard S. Chernicoff, Khandker Nazrul Quader, Robert D. Norman, Tianhong Yan, Sayeef Salahuddin, Eli Harari
  • Publication number: 20230200074
    Abstract: A semiconductor device includes a first substrate, a second substrate, a first connection structure, and a second connection structure. A transistor is formed in a first side of the first substrate. A doped region is formed in a first side of the second substrate. The first connection structure is formed over a second side of the second substrate, and coupled to the doped region through a first VIA that extends from the second side of the second substrate to the doped region. The second connection structure is formed over the first side of the first substrate, connected with the first connection structure via a through silicon VIA, and coupled to the transistor through a bonding VIA. The first substrate is bonded to the second substrate by the bonding VIA, with the first side of the first substrate and the first side of the second substrate being facing each other.
    Type: Application
    Filed: February 22, 2023
    Publication date: June 22, 2023
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Jin Yong OH, Youn Cheul KIM
  • Patent number: 11675500
    Abstract: A first circuit formed on a first semiconductor substrate is wafer-bonded to a second circuit formed on a second memory circuit, wherein the first circuit includes quasi-volatile or non-volatile memory circuits and wherein the second memory circuit includes fast memory circuits that have lower read latencies than the quasi-volatile or non-volatile memory circuits, as well as logic circuits. The volatile and non-volatile memory circuits may include static random-access memory (SRAM) circuits, dynamic random-access memory (DRAM) circuits, embedded DRAM (eDRAM) circuits, magnetic random-access memory (MRAM) circuits, embedded MRAM (eMRAM), or any suitable combination of these circuits.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: June 13, 2023
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Youn Cheul Kim, Richard S. Chernicoff, Khandker Nazrul Quader, Robert D. Norman, Tianhong Yan, Sayeef Salahuddin, Eli Harari
  • Patent number: 11654416
    Abstract: The present invention relates to a super-absorbent polymer having excellent properties, both centrifugal retention capacity (CRC) and absorption under pressure (AUP) having been improved by introducing a surface crosslinked layer crosslinked by surface-modified inorganic particles, and to a method for preparing the same. The super-absorbent polymer comprises: a base resin powder containing a crosslinked polymer of water-soluble ethylene-based unsaturated monomers having an at least partially neutralized acidic group; and a surface crosslinked layer formed on the base resin powder, wherein inorganic particles may be chemically bound to the crosslinked polymer contained in the surface crosslinked layer, via an oxygen-containing bond or a nitrogen-containing bond.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: May 23, 2023
    Inventors: Sung Soo Park, Gi Cheul Kim, Ju Eun Kim, Hyeon Choi, Hyo Sook Joo, Sung Hyun Park, Hee Jung Choi, Ki Youl Yoon
  • Publication number: 20230131169
    Abstract: A high-capacity system memory may be built from both quasi-volatile (QV) memory circuits, logic circuits, and static random-access memory (SRAM) circuits. Using the SRAM circuits as buffers or cache for the QV memory circuits, the system memory may achieve access latency performance of the SRAM circuits and may be used as code memory. The system memory is also capable of direct memory access (DMA) operations and includes an arithmetic logic unit for performing computational memory tasks. The system memory may include one or more embedded processor. In addition, the system memory may be configured for multi-channel memory accesses by multiple host processors over multiple host ports. The system memory may be provided in the dual-in-line memory module (DIMM) format.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Inventors: Robert D. Norman, Eli Harari, Khandker Nazrul Quader, Frank Sai-keung Lee, Richard S. Chernicoff, Youn Cheul Kim, Mehrdad Mofidi
  • Patent number: 11616077
    Abstract: A semiconductor device includes a first substrate having a first side for forming memory cells and an opposing second side, a doped region formed in the first side of the first substrate, a first connection structure formed over the second side of the first substrate and coupled to the doped region through a first VIA, and a transistor formed in a first side of a second substrate and coupled to the first connection structure. The first VIA extends from the second side of the first substrate to the doped region. The memory cells include a plurality of word lines formed over the first side of the first substrate, a plurality of insulating layers disposed between the plurality of word lines, and a common source structure coupled to and extending from the doped region, and further extending through the plurality of word lines and the plurality of the insulating layers.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: March 28, 2023
    Assignee: Yangtze Memory Technologies Co., Ltd.
    Inventors: Jin Yong Oh, Youn Cheul Kim
  • Patent number: 11580038
    Abstract: A high-capacity system memory may be built from both quasi-volatile (QV) memory circuits, logic circuits, and static random-access memory (SRAM) circuits. Using the SRAM circuits as buffers or cache for the QV memory circuits, the system memory may achieve access latency performance of the SRAM circuits and may be used as code memory. The system memory is also capable of direct memory access (DMA) operations and includes an arithmetic logic unit for performing computational memory tasks. The system memory may include one or more embedded processor. In addition, the system memory may be configured for multi-channel memory accesses by multiple host processors over multiple host ports. The system memory may be provided in the dual-in-line memory module (DIMM) format.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: February 14, 2023
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Robert D. Norman, Eli Harari, Khandker Nazrul Quader, Frank Sai-keung Lee, Richard S. Chernicoff, Youn Cheul Kim, Mehrdad Mofidi
  • Publication number: 20230038620
    Abstract: A method of setting a user-defined virtual network is disclosed. A method of setting a virtual network includes configuring a virtual network including a controller, at least one network address translation (NAT) and at least one edge node, checking an operation type of the at least one edge node, setting a tunnel between the at least one edge node based on the operation type, and performing data transmission between the at least one edge node through the set tunnel.
    Type: Application
    Filed: October 27, 2021
    Publication date: February 9, 2023
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun Cheul KIM, Tae Yeon KIM, Ho Yong RYU
  • Publication number: 20230025836
    Abstract: The present invention relates to an ophthalmic preparation containing an active ingredient selected from 3-phenyl-4-propyl-1-(pyridin-2-yl)-1H-pyrazol-5-ol compound or a pharmaceutically acceptable salt thereof. The eye drop according to the present invention is excellent in stability and safety and shows an excellent effect on prevention or treatment of eye diseases in such a way that an active ingredient thereof reaches a posterior segment of an eyeball simply through instillation rather than a direct injection into an eyeball.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 26, 2023
    Applicants: Samjin Pharmaceutical Co., Ltd., AptaBio Therapeutics Inc.
    Inventors: Min-hyo Ki, Jin-cheul Kim, Mee-Hwa Choi, Dong-Ha Lee, Sung Hwan Moon, Soo Jin Lee
  • Patent number: 11563029
    Abstract: A 3D-NAND memory includes a transistor formed in a first side of a periphery circuit substrate, a memory cell stack formed over a first side of a cell array substrate, and a first connection structure formed over an opposing second side of the cell array substrate. The memory cell stack includes a doped region formed in the first side of the cell array substrate and coupled to the first connection structure through a first VIA, a common source structure that extends from the doped region toward the first side of the periphery circuit substrate, and a second connection structure that is positioned over and coupled to the common source structure. The first side of the cell array substrate and the first side of the periphery circuit substrate are aligned facing each other so that the transistor is coupled to the second connection structure.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: January 24, 2023
    Assignee: Yangtze Memory Technologies Co., Ltd.
    Inventors: Jin Yong Oh, Youn Cheul Kim
  • Patent number: 11504696
    Abstract: The present invention relates to a super absorbent polymer. The super absorbent polymer exhibits excellent initial absorption capacity, and thus can provide a sanitary material such as a diaper or a sanitary napkin which can quickly absorb body fluids and impart a dry and soft touch feeling.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: November 22, 2022
    Inventors: Kyu Pal Kim, Gi Cheul Kim, Ki Hyun Kim, Seul Ah Lee, Sang Gi Lee
  • Publication number: 20220362743
    Abstract: The present disclosure relates to a preparation method for a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. According to the preparation method of the present disclosure, a porous super absorbent polymer sheet can be prepared by a simplified process.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Ki Youl Yoon, Gi Cheul Kim, Hyeon Choi, Hyo Sook Joo, Ju Eun Kim
  • Patent number: 11459430
    Abstract: The present invention relates to a method for preparing superabsorbent polymer that introduces a plate type and rod-shaped clay additive in the superabsorbent polymer, and thus exhibits basic properties of a superabsorbent polymer equivalent to or much better than the existing superabsorbent polymer through multi-crosslinking, and particularly, can improve absorbency under pressure (AUP), and a superabsorbent polymer obtained thereby.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 4, 2022
    Inventors: Ki Youl Yoon, Hyo Sook Joo, Gi Cheul Kim, Hyeon Choi, Ju Eun Kim
  • Patent number: 11420185
    Abstract: The present disclosure relates to a preparation method for a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. According to the preparation method of the present disclosure, a porous super absorbent polymer sheet can be prepared by a simplified process.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: August 23, 2022
    Inventors: Ki Youl Yoon, Gi Cheul Kim, Hyeon Choi, Hyo Sook Joo, Ju Eun Kim
  • Publication number: 20220218685
    Abstract: The present invention relates to a composition for treating eye diseases, wherein the composition comprises a pyrazole-based compound, which is a pharmacologically active substance, and a biodegradable polymer, so that a drug effectively reaches a posterior segment of an eyeball, while prolonging an action time of the drug administered into the eyeball.
    Type: Application
    Filed: May 29, 2020
    Publication date: July 14, 2022
    Applicants: Samjin Pharmaceutical Co., Ltd., AptaBio Therapeutics Inc.
    Inventors: Min-hyo Ki, Kyung-wan Nam, Jin-cheul Kim, Kyung-jin Ahn, Sung Hwan Moon, Soo Jin Lee
  • Patent number: 11198768
    Abstract: The present invention relates to a method for preparing superabsorbent polymer. According to the preparation method of the present invention, the surface penetration depth of a surface crosslinking agent can be appropriately controlled, and superabsorbent polymer with excellent properties can be prepared though homogeneous surface crosslinking. Thus, superabsorbent polymer with improved absorption property can be provided without deterioration of absorbency under load.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: December 14, 2021
    Inventors: Ju Eun Kim, Gi Cheul Kim, Se Yeol Park, Ki Hyun Kim
  • Patent number: 11192088
    Abstract: The present invention relates to superabsorbent polymer having an improved absorption speed through micropores formed inside, and a method for preparing the same.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: December 7, 2021
    Inventors: Kum Hyoung Lee, Gi Cheul Kim, Sung Soo Park, Ye Sol Yang