Patents by Inventor Sang-Won Kim

Sang-Won 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).

  • Publication number: 20250141271
    Abstract: A method and device for controlling a resonant inductor for implementing ZVS in a push-pull parallel resonant inverter is closed. The present disclosure provides A device comprising: a converter including a full-bridge circuit in which a first switch and a second switch form a first leg and a third switch and a fourth switch form a second leg and configured to convert a DC into an AC by turning on or off the switches; a resonant inductor circuit including a resonant inductor and a resonant switch connected in series and connected between two output nodes of the converter; a transmission coil connected in parallel with the resonant inductor circuit; and a controller configured to convert the DC into the AC by providing a switching timing for turning on or off the switches and control a switching timing of the resonant switch based on switching timings of the switches.
    Type: Application
    Filed: October 22, 2024
    Publication date: May 1, 2025
    Inventors: Kye Seok YOON, Gwang Zeen KO, Sang Won KIM, Seong Min KIM, In Kui CHO
  • Publication number: 20250129533
    Abstract: The present invention relates to a technique pertaining to a method and device for providing guiding information after washing is finished, and the method for providing guiding information after washing is finished, according to an embodiment of the present invention, comprises: a step in which a server communication unit of a management server receives, from a washer, a first message notifying that washing is finished; a step in which the server communication unit receives, from a dryer for drying the laundry from the washer, a second message notifying the start of drying; a step in which a server control unit of the management server calculates, using the first message and the second message, the time during which the laundry was left in the washer; and a step in which the server control unit controls a notification process of the washer or of the dryer by comparing the time during which the laundry was left inside with a reference time.
    Type: Application
    Filed: May 27, 2022
    Publication date: April 24, 2025
    Applicant: LG Electronics Inc.
    Inventors: Sang Won KIM, Tae Yoon KIM, Jung Hyub LEE, Taekyo LEE
  • Publication number: 20250112235
    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: December 11, 2024
    Publication date: April 3, 2025
    Applicants: POSCO CO., LTD, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Jae Myung Lee, Jun-Kyu Ahn, Sang Won Kim, Heok Yang
  • Patent number: 12260565
    Abstract: An image processing-based foreign substance detection method in a wireless charging system and a device performing the method are disclosed. A method for detecting a foreign substance includes an operation of acquiring an image of a charging area of a wireless charging system, an operation of detecting, based on an RGB value of a frame of the image, a foreign substance in the charging area, an operation of discriminating a type of the foreign substance, and an operation of performing power control of the wireless charging system according to the type of the foreign substance.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: March 25, 2025
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gwangzeen Ko, Jung Ick Moon, Sang-Won Kim, Seong-Min Kim, In Kui Cho, Woo Jin Byun, Je Hoon Yun
  • Publication number: 20250059624
    Abstract: Provided is a method of recovery lithium ion, including adding a residue after leaching lithium from an ore containing spodumene into a solution in which a lithium ion is dissolved; absorbing a lithium ion into the residue by reacting the solution containing the residue at 50-90° C.; and recovering a cake containing a lithium from the residue in which the lithium ion has been absorbed by performing solid-liquid separation.
    Type: Application
    Filed: December 15, 2022
    Publication date: February 20, 2025
    Applicants: POSCO CO., Ltd, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Gi-Chun HAN, Young Geun SON, Sang Won KIM, Kee Uek JEUNG, Seung Goo KIM, Seung Seok LEE, Young-Seon KO
  • Patent number: 12227478
    Abstract: Provided are a process for preparing (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3-amine or a salt thereof, which is an intermediate useful for the preparation of tofacitinib, an intermediate used in the process, i.e., isopropanol solvate of methyl ((3R,4R)-1-benzyl-4-methylpiperidin-3-yl)carbamate dibenzoyl-L-tartrate, an intermediate, having excellent stability, useful for the preparation of tofacitinib, i.e., (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3-amine acetate, and a process for preparing tofacitinib or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: February 18, 2025
    Assignee: YUHAN CORPORATION
    Inventors: Sang-Ho Oh, Doo-Byung Lee, Kyoung-Chan Kwon, Sang-Won Kim, Hyo-Ick Hwang, Kyeong-Sill Lee, Ik-Su Jo, Ji-Hye Choi, Sung-Hee Cho, Su-Young Lee
  • Publication number: 20250050307
    Abstract: The present exemplary embodiments relate to a sodium ion adsorbent, a method of manufacturing the same, and a method for removing sodium ions. According to an exemplary embodiment, a sodium ion adsorbent for removing sodium ions may include a compound represented by Chemical Formula 1 below. [Chemical Formula 1] HxM1-xAlSi2O6, in Chemical Formula 1, M is one or more elements selected from Na, K, Cs, and Rb, and 0<x?1.
    Type: Application
    Filed: December 15, 2022
    Publication date: February 13, 2025
    Applicants: POSCO Co., Ltd, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Gi-Chun HAN, Sang Won KIM, Seung Goo KIM, Seung Seok LEE, Young-Seon KO, Young Geun SON, Kee Uek JEUNG
  • Patent number: 12224600
    Abstract: Provided is a robot charging apparatus to wirelessly charge a robot capable of walking, which includes a plurality of receiving coils fixed to legs of a robot and a transmitting coil moved and provided according to a position of the robot and wirelessly charges the robot in such a manner that the transmitting coil is provided between the plurality of receiving coils and coupled to the receiving coils by a magnetic field output from the transmitting coil.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: February 11, 2025
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung Ick Moon, Sang-Won Kim, Seong-Min Kim, In Kui Cho
  • Publication number: 20250046509
    Abstract: A low-loss spiral coil includes a conducting wire wound N turns of which a width of each of wires corresponding to each of sections of the conducting wire is determined by setting an entire width of the conducting wire to be a width of M sections of the conducting wire, and then determining the width of each of the wires such that a resistance of the spiral coil formed based on the width of the M sections is minimized.
    Type: Application
    Filed: October 17, 2024
    Publication date: February 6, 2025
    Inventors: Jung Ick MOON, In Kui CHO, Sang-Won KIM, Seong-Min KIM, Ho Jin LEE, Je Hoon YUN, Dong Won JANG
  • Publication number: 20240421637
    Abstract: The present disclosure relates to a method and apparatus for performing multiple wireless charging. A method or performing wireless charging according to an embodiment of the present disclosure may comprise: identifying one or more receiving coils subject to wireless charging; setting a plurality of transmission frequencies based on a plurality of receiving coils being identified; and transmitting a wireless power transmission signal to the plurality of receiving coils using a plurality of transmitting coils connected to one inverter. Herein, a wireless power transmission signal transmitted from each transmitting coil belonging to the plurality of transmitting coils may be generated by applying the plurality of transmission frequencies in a pre-configured order.
    Type: Application
    Filed: May 20, 2024
    Publication date: December 19, 2024
    Inventors: Seong Min KIM, Gwang Zeen KO, Sang Won KIM, Kye Seok YOON, In Kui CHO
  • Publication number: 20240418649
    Abstract: A positive/negative determining apparatus according to one embodiment of the present invention includes: an input unit that receives signal values from a signal-generating reaction of a plurality of cycles targeting a target analyte, wherein the signal-generating reaction generates a signal dependent on a presence of the target analyte in a sample; a positive/negative determining unit pre-trained to estimate presence/absence of the target analyte in the sample from the signal values in the plurality of cycles and a sequence of the plurality of cycles.
    Type: Application
    Filed: October 20, 2022
    Publication date: December 19, 2024
    Inventors: Bong Gyun PARK, Ilhwan SEO, Hyungsuk SON, Kwangmin KIM, Kwang Su CHA, Sang Won KIM, Won Woo LYU
  • Patent number: 12162774
    Abstract: This disclosure relates to a method of preparing a lithium compound that includes preparing a lithium phosphate, mixing the lithium phosphate with sulfuric acid to obtain a mixture, converting the lithium phosphate into lithium sulfate through a reaction in the mixture, and separating the lithium sulfate in a solid phase, wherein in the step of converting the lithium phosphate into lithium sulfate through the reaction in the mixture, a sum concentration ([P+S] mol/L) of phosphorus (P) and sulfur (S) in a liquid phase of the mixture is greater than or equal to 5 mol/L.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 10, 2024
    Assignees: POSCO CO., LTD, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Juyoung Kim, Ki Young Kim, Woo Chul Jung, Kwang Seok Park, Hyunwoo Lee, Woonkyoung Park, Sang Won Kim, Jung Kwan Park, Heok Yang, Sung Kook Park, Seung Taek Kuk
  • Patent number: 12142932
    Abstract: A wireless power transmission resonator using a conducting wire with a vertical rectangular cross-section is disclosed. The wireless power transmission resonator may include a first element including a first element upper part arranged in an upper end of a resonator and a first element lower part arranged in a lower end of the resonator, wherein the first element upper part and the first element lower part each may include a spiral layer having a spiral structure that is wound to face a wide surface of a conducting wire including a vertical rectangular cross-section and a second element arranged in a center of the resonator and between the first element upper part and the first element lower part and including a spiral layer having a spiral structure that is wound to face the wide surface of the conducting wire including the vertical rectangular cross-section.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: November 12, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Je Hoon Yun, Sang-Won Kim, Seong-Min Kim, Jung Ick Moon, In Kui Cho, Gwangzeen Ko, Dong Won Jang
  • Publication number: 20240356380
    Abstract: A wireless charging system for attenuating electromagnetic waves is provided. The wireless charging system includes a transmitter including a clock generator configured to generate clock signals having reverse phases from each other, inverters configured to output inverter voltage/current signals having a same magnitude and reverse phases from each other using the clock signals generated by the clock generator, matching portions respectively connected to the inverters and configured to output transmission coil voltage/current signals having a same magnitude and reverse phases from each other using the inverter voltage/current signals, and transmission coils respectively connected to the matching portions and configured to generate magnetic fields towards a reception coil using the transmission coil voltage/current signals.
    Type: Application
    Filed: February 29, 2024
    Publication date: October 24, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sang-Won KIM, Gwangzeen KO, Seong-Min KIM, Kyeseok YOON, In Kui CHO
  • Publication number: 20240322601
    Abstract: A wireless power transmitter that changes an operation frequency and an operation method of the same are provided. The operation method includes controlling the wireless power transmitter to operate at a first operation frequency included in an operation frequency set, changing an operation frequency of the wireless power transmitter from the first operation frequency to a second operation frequency that is different from an operation frequency of a second wireless power transmitter that is adjacent to the wireless power transmitter for every channel duration, and controlling the wireless power transmitter to operate at the second operation frequency.
    Type: Application
    Filed: March 20, 2024
    Publication date: September 26, 2024
    Inventors: Gwangzeen KO, Sang-Won KIM, Seong-Min KIM, Jung Ick MOON, In Kui CHO
  • Publication number: 20240320548
    Abstract: Provided are a learning characteristics analysis and learning environment adjustment method using artificial intelligence and a service providing server used therein. The present invention is implemented through a process of transmitting learning contents stored in a first storage area among a plurality of storage areas to a learner terminal, receiving response information of a learner on the learning contents from the learner terminal, determining whether to execute movement and storage of the learning contents from the first storage area to a second storage area based on the response information of the learner, and analyzing learning characteristics of the learner based on the response information of the learner.
    Type: Application
    Filed: February 5, 2024
    Publication date: September 26, 2024
    Inventor: Sang Won KIM
  • Publication number: 20240305144
    Abstract: The present invention relates to a method and apparatus for performing position estimation of multiple receiving coil and wireless power transmission. A method for performing wireless power transmission according to an embodiment of the present disclosure may comprise: calculating a current value flowing through one or more transmitting (Tx) coils by measuring an impedance value of the one or more Tx coils; identifying whether a receiving (Rx) coil associated with the one or more Tx coils exists; when one or more Rx coils exist, calculating a correlation value between a Tx coil and a Rx coil for each of the one or more Rx coils; determining a position of the one or more Rx coils; and performing wireless power transmission to the one or more Rx coils.
    Type: Application
    Filed: November 16, 2023
    Publication date: September 12, 2024
    Inventors: Sang Won KIM, In Kui Cho, Yong Bae Park, Jun Heo
  • Publication number: 20240257489
    Abstract: The present disclosure relates to an image processing method for a multi-dimensional region of interest (ROI) in a wireless charging system. More specifically, the method includes determining whether a surveillance target exists in the multi-dimensional ROI by performing, regarding the surveillance target, the process of removing a false-alarm region and including an excluded ROI.
    Type: Application
    Filed: July 6, 2023
    Publication date: August 1, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Gwangzeen KO, Sang-Won KIM, Seong-Min KIM, Jung Ick MOON, In Kui CHO
  • Publication number: 20240260402
    Abstract: The present disclosure relates to a cover plate module and a display apparatus including the same. Disclosed is a cover plate module including a cover plate including a transparent part, an anti scattered film located on the cover plate, and a metal fine line assembly provided on the anti scattered film. The cover plate module and a display apparatus including the same ensure uniform heat dissipation between the front surface and the rear surface of the display apparatus, thus preventing occurrence of a warpage defect and improving reliability of the display apparatus.
    Type: Application
    Filed: January 19, 2024
    Publication date: August 1, 2024
    Inventor: Sang Won KIM
  • Publication number: 20240243084
    Abstract: A wafer level fan out semiconductor device and a manufacturing method thereof are provided. A first sealing part is formed on lateral surfaces of a semiconductor die. A plurality of redistribution layers are formed on surfaces of the semiconductor die and the first sealing part, and solder balls are attached to the redistribution layers. The solder balls are arrayed on the semiconductor die and the first sealing part. In addition, a second sealing part is formed on the semiconductor die, the first sealing part and lower portions of the solder balls. The solder balls are exposed to the outside through the second sealing part. Since the first sealing part and the second sealing part are formed of materials having thermal expansion coefficients which are the same as or similar to each other, warpage occurring to the wafer level fan out semiconductor device can be suppressed.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 18, 2024
    Inventors: Boo Yang Jung, Jong Sik Paek, Choon Heung Lee, In Bae Park, Sang Won Kim, Sung Kyu Kim, Sang Gyu Lee