Patents by Inventor Sun Kyu Lee
Sun Kyu 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).
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Publication number: 20240120459Abstract: A method of preparing a positive electrode active material having a high ratio of charge and discharge capacity at a charge end voltage of 4.1 V to 4.175 V to charge and discharge capacity at a charge end voltage of 4.2 V to 4.275 V and having an excellent initial charge and discharge capacity is provided.Type: ApplicationFiled: November 24, 2022Publication date: April 11, 2024Applicant: LG Chem, Ltd.Inventors: Min Kyu You, Sun Sik Shin, Joo Hong Jin, June Woo Lee, Ji A Shin, Min Joo Park
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Patent number: 11943987Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.Type: GrantFiled: June 11, 2020Date of Patent: March 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gak Seok Lee, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Ji Eun Jang, Chang Soon Jang, Sun Kyu Joo, Ha Lim Ji
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Patent number: 11922225Abstract: Provided is a cluster node recommendation system. A method of controlling the cluster node recommendation system includes: inputting user selection information from a user, the user selection information including at least one of a cloud vendor, an Information Technology (IT) resource size, and a free resource size; checking resource requirements of a designated application; outputting a node configuration by inputting the input user selection information and the checked resource requirements of the application to an artificial intelligence module; verifying validity by arranging a container in which the application is executed, in the output node configuration; and providing a final node configuration in which validity verification is made, to the user.Type: GrantFiled: November 1, 2023Date of Patent: March 5, 2024Assignee: STRATO CO., LTD.Inventors: Hyeong-Doo Kim, Ho-Chul Lee, Sun-Kyu Park, Nam-Kyu Park, Yong-Min Kwon
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Patent number: 11745342Abstract: An embodiment of the present disclosure provides a manipulator for a finishing work, including: a base; an arm comprising a plurality of links, a plurality of joints connecting the plurality of links, and a plurality of actuators generating rotation of at least some of the plurality of joints; and a processor determining a driving torque of each of the plurality of actuators considering a self-weight effect of the manipulator and controlling the plurality of actuators based on the determined driving torque.Type: GrantFiled: June 3, 2020Date of Patent: September 5, 2023Assignee: Gwangju Institute of Science and TechnologyInventors: Sun Kyu Lee, Jong Jae Kim, Sang Ki Park, Dae Gweon Koh, Jae Yun Sim
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Patent number: 11733685Abstract: The present disclosure relates to a surface inspection method using a mold surface inspection device, and more specifically, to a surface inspection method using a mold surface inspection device including a setting part in which an inspection object is set, a light source part configured to irradiate the inspection object with irradiated light so that a reflective highlight is generated on a surface of the inspection object, an imaging part configured to image the surface of the inspection object so that a highlight region where a reflective highlight is generated is included, and an image processing part configured to process an image imaged in the imaging part to provide the image to a worker so that the worker determines whether defects are generated on the surface of the inspection object on the basis of the image.Type: GrantFiled: September 30, 2020Date of Patent: August 22, 2023Assignee: GIST(Gwangju Institute of Science and Technology)Inventors: Sun Kyu Lee, Dae Gweon Koh, Han Ul Kim, Jin Hyuk Hong, Dinuka Ravimal Ranawaka Arachchige
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Publication number: 20230246551Abstract: A multi-phase switching regulator and a switching regulating method using the multi-phase switching regulator employ an interleaving circuit. The multi-phase switching regulator includes: a first regulating circuit configured to receive an input voltage and generate a first sub-output voltage with a first phase by transforming the input voltage in response to a first set signal; a second regulating circuit configured to receive the input voltage and generate a second sub-output voltage with a second phase by transforming the input voltage in response to a second set signal; and the interleaving circuit configured to repeatedly and sequentially generate the first set signal and the second set signal by comparing a reference voltage with an output voltage generated based on the first sub-output voltage and the second sub-output voltage.Type: ApplicationFiled: April 6, 2023Publication date: August 3, 2023Inventors: SUN-KYU LEE, NGUYEN HUYHIEU, DONG-JIN KEUM, JE-HYUNG YOON, HEE-SEOK HAN
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Patent number: 11699954Abstract: A multi-phase switching regulator and a switching regulating method using the multi-phase switching regulator employ an interleaving circuit. The multi-phase switching regulator includes: a first regulating circuit configured to receive an input voltage and generate a first sub-output voltage with a first phase by transforming the input voltage in response to a first set signal; a second regulating circuit configured to receive the input voltage and generate a second sub-output voltage with a second phase by transforming the input voltage in response to a second set signal; and the interleaving circuit configured to repeatedly and sequentially generate the first set signal and the second set signal by comparing a reference voltage with an output voltage generated based on the first sub-output voltage and the second sub-output voltage.Type: GrantFiled: September 6, 2021Date of Patent: July 11, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Sun-Kyu Lee, Nguyen Huyhieu, Dong-Jin Keum, Je-Hyung Yoon, Hee-Seok Han
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Patent number: 11637498Abstract: A multi-phase switching regulator and a switching regulating method using the multi-phase switching regulator employ an interleaving circuit. The multi-phase switching regulator includes: a first regulating circuit configured to receive an input voltage and generate a first sub-output voltage with a first phase by transforming the input voltage in response to a first set signal; a second regulating circuit configured to receive the input voltage and generate a second sub-output voltage with a second phase by transforming the input voltage in response to a second set signal; and the interleaving circuit configured to repeatedly and sequentially generate the first set signal and the second set signal by comparing a reference voltage with an output voltage generated based on the first sub-output voltage and the second sub-output voltage.Type: GrantFiled: September 6, 2021Date of Patent: April 25, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Sun-Kyu Lee, Nguyen Huyhieu, Dong-Jin Keum, Je-Hyung Yoon, Hee-Seok Han
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Publication number: 20220226992Abstract: An embodiment of the present disclosure provides a manipulator for a finishing work, including: a base; an arm comprising a plurality of links, a plurality of joints connecting the plurality of links, and a plurality of actuators generating rotation of at least some of the plurality of joints; and a processor determining a driving torque of each of the plurality of actuators considering a self-weight effect of the manipulator and controlling the plurality of actuators based on the determined driving torque.Type: ApplicationFiled: June 3, 2020Publication date: July 21, 2022Inventors: Sun Kyu Lee, Jong Jae Kim, Sang Ki Park, Dae Gweon Koh, Jae Yun Sim
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Publication number: 20210399641Abstract: A multi-phase switching regulator and a switching regulating method using the multi-phase switching regulator employ an interleaving circuit. The multi-phase switching regulator includes: a first regulating circuit configured to receive an input voltage and generate a first sub-output voltage with a first phase by transforming the input voltage in response to a first set signal; a second regulating circuit configured to receive the input voltage and generate a second sub-output voltage with a second phase by transforming the input voltage in response to a second set signal; and the interleaving circuit configured to repeatedly and sequentially generate the first set signal and the second set signal by comparing a reference voltage with an output voltage generated based on the first sub-output voltage and the second sub-output voltage.Type: ApplicationFiled: September 6, 2021Publication date: December 23, 2021Inventors: SUN-KYU LEE, NGUYEN HUYHIEU, DONG-JIN KEUM, JE-HYUNG YOON, HEE-SEOK HAN
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Patent number: 11152860Abstract: A multi-phase switching regulator and a switching regulating method using the multi-phase switching regulator employ an interleaving circuit. The multi-phase switching regulator includes: a first regulating circuit configured to receive an input voltage and generate a first sub-output voltage with a first phase by transforming the input voltage in response to a first set signal; a second regulating circuit configured to receive the input voltage and generate a second sub-output voltage with a second phase by transforming the input voltage in response to a second set signal; and the interleaving circuit configured to repeatedly and sequentially generate the first set signal and the second set signal by comparing a reference voltage with an output voltage generated based on the first sub-output voltage and the second sub-output voltage.Type: GrantFiled: August 14, 2019Date of Patent: October 19, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Sun-Kyu Lee, Nguyen Huyhieu, Dong-Jin Keum, Je-Hyung Yoon, Hee-Seok Han
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Publication number: 20210247749Abstract: The present disclosure relates to a surface inspection method using a mold surface inspection device, and more specifically, to a surface inspection method using a mold surface inspection device including a setting part in which an inspection object is set, a light source part configured to irradiate the inspection object with irradiated light so that a reflective highlight is generated on a surface of the inspection object, an imaging part configured to image the surface of the inspection object so that a highlight region where a reflective highlight is generated is included, and an image processing part configured to process an image imaged in the imaging part to provide the image to a worker so that the worker determines whether defects are generated on the surface of the inspection object on the basis of the image.Type: ApplicationFiled: September 30, 2020Publication date: August 12, 2021Applicant: GIST(Gwangju Institute of Science and Technology)Inventors: Sun Kyu LEE, Dae Gweon KOH, Han Ul KIM, Jin Hyuk HONG, Dinuka Ravimal Ranawaka Arachchige
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Patent number: 10714945Abstract: A charge control circuit includes: a charge current control circuit configured to receive an input voltage at a first node, output a sensing current to a second node, and turn on a power transistor; a comparator configured to compare a voltage level of the second node with a voltage level of a third node, wherein the third node receives a charging current from the power transistor; a current mirror configured to generate a mirror current corresponding to the sensing current; and an amplifier configured to receive a first feedback voltage based on the mirror current, and amplify a difference between the first feedback voltage and a reference voltage to generate a switch control signal, wherein in response to the switch control signal and a plurality of control signals, the charge current control circuit is configured to decrease the sensing current and turn on the power transistor.Type: GrantFiled: October 23, 2018Date of Patent: July 14, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae Hwang Kong, Sun Kyu Lee, Sung Yong Lee, Dae Yong Kim, Sang Ho Kim
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Publication number: 20200119648Abstract: A multi-phase switching regulator and a switching regulating method using the multi-phase switching regulator employ an interleaving circuit. The multi-phase switching regulator includes: a first regulating circuit configured to receive an input voltage and generate a first sub-output voltage with a first phase by transforming the input voltage in response to a first set signal; a second regulating circuit configured to receive the input voltage and generate a second sub-output voltage with a second phase by transforming the input voltage in response to a second set signal; and the interleaving circuit configured to repeatedly and sequentially generate the first set signal and the second set signal by comparing a reference voltage with an output voltage generated based on the first sub-output voltage and the second sub-output voltage.Type: ApplicationFiled: August 14, 2019Publication date: April 16, 2020Inventors: SUN-KYU LEE, NGUYEN HUYHIEU, DONG-JIN KEUM, JE-HYUNG YOON, HEE-SEOK HAN
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Publication number: 20190058344Abstract: A charge control circuit includes: a charge current control circuit configured to receive an input voltage at a first node, output a sensing current to a second node, and turn on a power transistor; a comparator configured to compare a voltage level of the second node with a voltage level of a third node, wherein the third node receives a charging current from the power transistor; a current mirror configured to generate a mirror current corresponding to the sensing current; and an amplifier configured to receive a first feedback voltage based on the mirror current, and amplify a difference between the first feedback voltage and a reference voltage to generate a switch control signal, wherein in response to the switch control signal and a plurality of control signals, the charge current control circuit is configured to decrease the sensing current and turn on the power transistor.Type: ApplicationFiled: October 23, 2018Publication date: February 21, 2019Inventors: TAE HWANG KONG, SUN KYU LEE, SUNG YONG LEE, DAE YONG KIM, SANG HO KIM
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Patent number: 10161597Abstract: A lighting system and a selective retro-reflection apparatus are provided. The lighting system includes a lamp, a reflector configured to reflect light emitted by the lamp, a projection lens configured to emit the reflected light of the reflector in a predetermined direction, and a selective shield apparatus disposed between the projection lens and the reflector and provided on a path of light directed upward among the light reflected from the reflector to selectively shield the light directed upward, wherein the selective shield apparatus includes a panel and a selective shield portion supported by the panel, positions of the panel and the selective shield portion are fixed, and a state in which the selective shield portion transmits the light is changed according to whether power is supplied.Type: GrantFiled: August 14, 2015Date of Patent: December 25, 2018Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sang Ki Park, Sun Kyu Lee, Sung Ki Nam
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Patent number: 10110032Abstract: A charge control circuit includes: a charge current control circuit configured to receive an input voltage at a first node, output a sensing current to a second node, and turn on a power transistor; a comparator configured to compare a voltage level of the second node with a voltage level of a third node, wherein the third node receives a charging current from the power transistor; a current mirror configured to generate a mirror current corresponding to the sensing current; and an amplifier configured to receive a first feedback voltage based on the mirror current, and amplify a difference between the first feedback voltage and a reference voltage to generate a switch control signal, wherein in response to the switch control signal and a plurality of control signals, the charge current control circuit is configured to decrease the sensing current and turn on the power transistor.Type: GrantFiled: April 12, 2016Date of Patent: October 23, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae Hwang Kong, Sun Kyu Lee, Sung Yong Lee, Dae Yong Kim, Sang Ho Kim
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Publication number: 20170040818Abstract: A charge control circuit includes: a charge current control circuit configured to receive an input voltage at a first node, output a sensing current to a second node, and turn on a power transistor; a comparator configured to compare a voltage level of the second node with a voltage level of a third node, wherein the third node receives a charging current from the power transistor; a current mirror configured to generate a mirror current corresponding to the sensing current; and an amplifier configured to receive a first feedback voltage based on the mirror current, and amplify a difference between the first feedback voltage and a reference voltage to generate a switch control signal, wherein in response to the switch control signal and a plurality of control signals, the charge current control circuit is configured to decrease the sensing current and turn on the power transistor.Type: ApplicationFiled: April 12, 2016Publication date: February 9, 2017Inventors: TAE HWANG KONG, SUN KYU LEE, SUNG YONG LEE, DAE YONG KIM, SANG HO KIM
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Publication number: 20160053972Abstract: A lighting system and a selective retro-reflection apparatus are provided. The lighting system includes a lamp, a reflector configured to reflect light emitted by the lamp, a projection lens configured to emit the reflected light of the reflector in a predetermined direction, and a selective shield apparatus disposed between the projection lens and the reflector and provided on a path of light directed upward among the light reflected from the reflector to selectively shield the light directed upward, wherein the selective shield apparatus includes a panel and a selective shield portion supported by the panel, positions of the panel and the selective shield portion are fixed, and a state in which the selective shield portion transmits the light is changed according to whether power is supplied.Type: ApplicationFiled: August 14, 2015Publication date: February 25, 2016Inventors: SANG KI PARK, SUN KYU LEE, SUNG KI NAM
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Patent number: 9270854Abstract: Disclosed is an ultra thin optical scanning device for a portable information device, which includes an LED as a light source and totally reflects light from an object-side surface to form an image, thereby increasing a contrast ratio of the image and improving the resolution thereof. The ultra thin optical scanning device includes a light emitting device that emits light for sensing an object, an object-side surface contacting the object and totally reflecting the light emitted from the light emitting device, an image formation part collecting the light totally reflected by the object-side surface, and transmitting the light, and a light receiver part forming an image by using the light transmitted by the image formation part.Type: GrantFiled: December 14, 2010Date of Patent: February 23, 2016Assignee: Gwangju Institute of Science and TechnologyInventors: Sun Kyu Lee, Jae Young Joo, Cha Bum Lee, Do Kyun Woo