Patents by Inventor Jong-yun CHOI
Jong-yun CHOI 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).
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Patent number: 11985580Abstract: An electronic device includes a narrowband internet of things (NB-IoT) circuit; a shared central processor to control the narrowband internet of things circuit; a shared memory to store data or code from the shared central processor; and a communicator controlled by the shared central processor. The communicator stores the data or the code in the shared memory.Type: GrantFiled: June 27, 2023Date of Patent: May 14, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Woo Young Choi, Dong Yun Kim, Ivan Galkin, Ji-Hoon Park, Jong-Jin Lee
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Patent number: 11969397Abstract: The present invention relates to a composition for preventing or treating transplantation rejection or a transplantation rejection disease, comprising a novel compound and a calcineurin inhibitor. A co-administration of the present invention 1) reduces the activity of pathogenic Th1 cells or Th17 cells, 2) increases the activity of Treg cells, 3) has an inhibitory effect against side effects, such as tissue damage, occurring in the sole administration thereof, 4) inhibits various pathogenic pathways, 5) inhibits the cell death of inflammatory cells, and 6) increases the activity of mitochondria, in an in vivo or in vitro allogenic model, a transplantation rejection disease model, a skin transplantation model, and a liver-transplanted patient, and thus inhibits transplantation rejection along with mitigating side effects possibly occurring in the administration of a conventional immunosuppressant alone.Type: GrantFiled: November 7, 2019Date of Patent: April 30, 2024Assignee: THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Mi-La Cho, Dong-Yun Shin, Jong-Young Choi, Chul-Woo Yang, Sung-Hwan Park, Seon-Yeong Lee, Min-Jung Park, Joo-Yeon Jhun, Se-Young Kim, Hyeon-Beom Seo, Jae-Yoon Ryu, Keun-Hyung Cho
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Solution composition for surface treatment of steel sheet and surface-treated steel sheet using same
Patent number: 11939489Abstract: Provided is a composition for surface treatment of a steel sheet, the composition having excellent resistance to an acid, such as sulfuric acid, and to a coated steel sheet to which the composition for surface treatment is applied, wherein the composition for surface treatment comprises 30-50% wt % of colloidal silica containing 5-20 nm-sized silica, 40-60% wt % of silane containing three or more alkoxy groups, 5-15 wt % of an acrylate-based organic monomer, 0.01-1 wt % of an acid, and 1-15 wt % of a solvent.Type: GrantFiled: September 28, 2017Date of Patent: March 26, 2024Assignees: POSCO CO., LTD, NOROO COIL COATINGS CO., LTD.Inventors: Chang-Hoon Choi, Dong-Yun Kim, Min-Ho Jo, Jae-Duck Ko, Won-Ho Son, Jong-Hwa Kim -
Publication number: 20230354550Abstract: A heat sink according to an example embodiment comprises: an inlet part through which a refrigerant is introduced; an outlet part through which the refrigerant received from the inlet part is discharged; and a plurality of flow channels disposed between the inlet part and the outlet part, configured to allow the refrigerant to flow, wherein the plurality of flow channels is arranged to have a spirally bent shape, and parts of the plurality of flow channels communicate with each other to allow the refrigerant to circulate between the flow channels.Type: ApplicationFiled: May 7, 2021Publication date: November 2, 2023Inventors: Young Joo KIM, Yong Soo KIM, Seung Boong JEONG, Jong Yun CHOI
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Publication number: 20230312648Abstract: The present invention relates to novel peptides and a pharmaceutical compositions comprising the same. The peptide compounds and compositions disclosed herein are useful as therapeutic agents for treating eye diseases. When administered to the eyes, the peptide compounds and compositions disclosed herein increase the amount of tear secretion and promotes recovery of a damaged cornea.Type: ApplicationFiled: February 22, 2023Publication date: October 5, 2023Inventors: Taegon Baik, Jong-Yun Choi, Gyoung-Wook Min, Chun-Ho Park
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Publication number: 20230290445Abstract: Provided are a method, apparatus, and computer program for automatically generating standardized research record data for training an artificial intelligence model. The method for automatically generating standardized research record data for training an artificial intelligence model, according to various embodiments of the present invention, is performed by a computing apparatus and comprises the steps of: acquiring research record information regarding an experiment; processing the acquired research record information on the basis of prestored data related to the experiment; and generating standardized research record data by using the processed research record information.Type: ApplicationFiled: May 19, 2023Publication date: September 14, 2023Applicant: ANT INC.Inventors: Jong Yun CHOI, Sukjoo HONG, Sangyoon LEE
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Patent number: 11613558Abstract: The present invention relates to novel peptides and a pharmaceutical compositions comprising the same. The peptide compounds and compositions disclosed herein are useful as therapeutic agents for treating eye diseases. When administered to the eyes, the peptide compounds and compositions disclosed herein increase the amount of tear secretion and promotes recovery of a damaged cornea.Type: GrantFiled: November 14, 2019Date of Patent: March 28, 2023Assignee: Yuyu Pharma, Inc.Inventors: Taegon Baik, Jong-Yun Choi, Gyoung-Wook Min, Chun-Ho Park
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Patent number: 11063530Abstract: A method of removing a direct current component at an output terminal of an MMC converter according to the present invention includes a detection step of individually detecting charging voltages charged in capacitors of a plurality of sub-modules connected in series to each other in the MMC converter; outputting an average value of the individually detected charging voltages; delaying the outputted average value by a predetermined phase to output a phase-delayed average value; outputting the average value and the phase-delayed average value as a q-axis component voltage by using a predetermined dq conversion unit; calculating an error between the q-axis component voltage and a three-phase average voltage for the q-axis component voltage; and outputting, through a pre-determined first PI control unit, an offset voltage for reducing the error.Type: GrantFiled: December 14, 2017Date of Patent: July 13, 2021Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATIONInventors: Jong Kyou Jeong, Jong Yun Choi, Joo Yeon Lee, Yong Hee Park, Doo Young Lee
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Publication number: 20210126551Abstract: A method of removing a direct current component at an output terminal of an MMC converter according to the present invention includes a detection step of individually detecting charging voltages charged in capacitors of a plurality of sub-modules connected in series to each other in the MMC converter; outputting an average value of the individually detected charging voltages; delaying the outputted average value by a predetermined phase to output a phase-delayed average value; outputting the average value and the phase-delayed average value as a q-axis component voltage by using a predetermined dq conversion unit; calculating an error between the q-axis component voltage and a three-phase average voltage for the q-axis component voltage; and outputting, through a pre-determined first PI control unit, an offset voltage for reducing the error.Type: ApplicationFiled: December 14, 2017Publication date: April 29, 2021Inventors: Jong Kyou JEONG, Jong Yun CHOI, Joo Yeon LEE, Yong Hee PARK, Doo Young LEE
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Publication number: 20200270306Abstract: The present invention relates to novel peptides and a pharmaceutical compositions comprising the same. The peptide compounds and compositions disclosed herein are useful as therapeutic agents for treating eye diseases. When administered to the eyes, the peptide compounds and compositions disclosed herein increase the amount of tear secretion and promotes recovery of a damaged cornea.Type: ApplicationFiled: November 14, 2019Publication date: August 27, 2020Inventors: Taegon Baik, Jong-Yun Choi, Gyoung-Wook Min
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Patent number: 10396683Abstract: A Modular Multilevel Converter (MMC) includes multiple sub-modules connected in series with each other and a controller for controlling on/off switching of the sub-modules, in which the multiple sub-modules include N sub-modules that participate in the operation of the MMC and M redundant sub-modules for replacing at least one N sub-modules when the at least one N sub-modules fail, and the controller switches on a sub-module if a carrier signal assigned thereto is higher than a preset reference signal, and switches off the sub-module if the carrier signal assigned thereto is lower than the preset reference signal.Type: GrantFiled: December 28, 2015Date of Patent: August 27, 2019Assignee: HYOSUNG HEAVY INDSTRIES CORPORATIONInventors: Hong-Ju Jung, Jong-Yun Choi, June-Sung Kim, Jung-Soo Park, Doo-Young Lee
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Patent number: 10348181Abstract: Provided is a power control apparatus for sub-modules in an MMC, which controls stable supply of power to sub-modules in MMC connected to an HVDC system and a STATCOM. The power control apparatus has at least one first resistor connected between P and N buses of MMC; a second resistor connected in series with the first resistor; a switch connected in series with the second resistor; a third resistor connected in parallel with the second resistor and the switch which are connected in series; a Zener diode connected in parallel with the third resistor; and a DC/DC converter connected between both ends of the Zener diode and configured to convert voltage across both ends of the Zener diode into low voltage, and supply the low voltage to the sub-modules, wherein a magnitude of current flowing through the Zener diode is controlled depending on ON/OFF switching of the switch.Type: GrantFiled: December 29, 2015Date of Patent: July 9, 2019Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATIONInventors: June-Sung Kim, Hong-Ju Jung, Jung-Soo Park, Doo-Young Lee, Jong-Yun Choi
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Patent number: 10231363Abstract: The present invention relates to a modular cooling apparatus for a high-voltage direct-current transmission system. A sub-module (10) according to the present invention comprises a power unit (12) in the front and a capacitor unit (13) in the rear, and a heat sink (30) for discharging heat generated from the interior is provided in an interior space (14?) of a power unit housing (14) forming the exterior of the power unit (12). A coolant path (31) is provided in the interior of the heat sink (30). The entrance and exit of the coolant path (31) are located adjacent to the bottom surface of the interior space (14?). Connecting couplers (20) for supplying coolant to the interior space (14?) are provided on the sloped surface (16) on the bottom end of the front surface (15) of the power unit housing (14). The sloped surface (16) is formed so as to face the ground at an angle.Type: GrantFiled: December 24, 2014Date of Patent: March 12, 2019Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATIONInventors: June-Sung Kim, Hong-Ju Jung, Jong-Yun Choi
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Patent number: 10177652Abstract: Disclosed herein is a power supply apparatus for a sub-module controller of a Modular Multilevel Converter (MMC), which supplies driving power to the sub-module controller of an MMC connected to a High Voltage Direct Current (HVDC) system. The power supply apparatus includes a bridge circuit unit including N (N?2, integer) energy storage units for storing a DC voltage in series-connected sub-modules in the MMC and multiple power semiconductor devices connected in parallel with the N energy storage units in a form of a bridge; and a DC/DC converter for converting a voltage output from output terminals formed between both ends of n (1?n<N) series-connected energy storage units, among the N energy storage units, into a low voltage and supplying the low voltage to the sub-module controller.Type: GrantFiled: December 29, 2015Date of Patent: January 8, 2019Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATIONInventors: Jung-Soo Park, Hong-Ju Jung, June-Sung Kim, Doo-Young Lee, Jong-Yun Choi
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Patent number: 10038311Abstract: Provided is a module replacement device of a high voltage direct current transmission system. In the device, a replacement base is provided in a structure by using a support member such that a sub-module movably provided at a fixing base of the structure can be replaced by being withdrawn outside of the structure. Further, the replacement base can easily and firmly be provided in the structure such that the module can be replaced in an easy and safe manner.Type: GrantFiled: July 8, 2015Date of Patent: July 31, 2018Assignee: HYOSUNG CORPORATIONInventors: June-Sung Kim, Hong-Ju Jung, Jung-Soo Park, Doo-Young Lee, Jong-Yun Choi
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Patent number: 9917522Abstract: The present invention relates to a power control apparatus for sub-modules in a Modular Multilevel Converter (MMC), which controls the supply of power to sub-modules in an MMC connected to an HVDC system and to a STATCOM.Type: GrantFiled: December 28, 2015Date of Patent: March 13, 2018Assignee: HYOSUNG CORPORATIONInventors: June-Sung Kim, Hong-Ju Jung, Jung-Soo Park, Doo-Young Lee, Jong-Yun Choi
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Publication number: 20180006546Abstract: Disclosed herein is a power control apparatus for sub-modules in an MMC, which controls stable supply of power to sub-modules in MMC connected to an HVDC system and a STATCOM. The power control apparatus includes at least one first resistor connected between P and N buses of MMC; a second resistor connected in series with the first resistor; a switch connected in series with the second resistor; a third resistor connected in parallel with the second resistor and the switch which are connected in series; a Zener diode connected in parallel with the third resistor; and a DC/DC converter connected between both ends of the Zener diode and configured to convert voltage across both ends of the Zener diode into low voltage, and supply the low voltage to the sub-modules, wherein a magnitude of current flowing through the Zener diode is controlled depending on ON/OFF switching of the switch.Type: ApplicationFiled: December 29, 2015Publication date: January 4, 2018Inventors: June-Sung KIM, Hong-Ju JUNG, Jung-Soo PARK, Doo-Young LEE, Jong-Yun CHOI
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Publication number: 20180006576Abstract: The present invention provides a Modular Multilevel Converter (MMC) in which M redundant sub-modules are additionally arranged in addition to the N sub-modules that are needed for operation, and the N+M sub-modules are controlled so as to participate in switching in turn. The MMC according to an embodiment of the present invention includes multiple sub-modules connected in series with each other and a controller for controlling on/off switching of the sub-modules. Here, the multiple sub-modules include N sub-modules that participate in the operation of the MMC and M redundant sub-modules for replacing a failing sub-module when at least one of the N sub-modules fails, and the controller switches on the sub-module if the carrier signal assigned thereto is higher than a preset reference signal, and switches off the sub-module if the carrier signal assigned thereto is lower than the reference signal.Type: ApplicationFiled: December 28, 2015Publication date: January 4, 2018Inventors: Hong-Ju JUNG, Jong-Yun CHOI, June-Sung KIM, Jung-Soo PARK, Doo-Young LEE
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Publication number: 20180006551Abstract: Disclosed herein is a power supply apparatus for a sub-module controller of a Modular Multilevel Converter (MMC), which supplies driving power to the sub-module controller of an MMC connected to a High Voltage Direct Current (HVDC) system. The power supply apparatus includes a bridge circuit unit including N (N?2, integer) energy storage units for storing a DC voltage in series-connected sub-modules in the MMC and multiple power semiconductor devices connected in parallel with the N energy storage units in a form of a bridge; and a DC/DC converter for converting a voltage output from output terminals formed between both ends of n (1?n<N) series-connected energy storage units, among the N energy storage units, into a low voltage and supplying the low voltage to the sub-module controller.Type: ApplicationFiled: December 29, 2015Publication date: January 4, 2018Inventors: Jung-Soo PARK, Hong-Ju JUNG, June-Sung KIM, Doo-Young LEE, Jong-Yun CHOI
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Publication number: 20170346407Abstract: The present invention relates to a power control apparatus for sub-modules in a Modular Multilevel Converter (MMC), which controls the supply of power to sub-modules in an MMC connected to an HVDC system and to a STATCOM.Type: ApplicationFiled: December 28, 2015Publication date: November 30, 2017Inventors: June-Sung KIM, Hong-Ju JUNG, Jung-Soo PARK, Doo-Young LEE, Jong-Yun CHOI