Patents by Inventor Chul Nam

Chul Nam 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: 20240141513
    Abstract: A porous transport layer is disclosed. The porous transport layer includes a base layer containing a titanium family element, a first coating layer disposed on one surface of the base layer and containing iridium (Ir), and a second coating layer disposed on the other surface of the base layer, and containing at least one of platinum (Pt), gold (Au), and silver (Ag), and a method for preparing the same.
    Type: Application
    Filed: February 22, 2023
    Publication date: May 2, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Young June Park, Woo Chul Jung, Seong Woo Nam, Sang Woo Kim
  • Publication number: 20240136844
    Abstract: Disclosed is an apparatus and method for controlling step charging of a secondary battery. A charging control unit determines a SOC, an OCV and a polarization voltage of the secondary battery, determines an OCV deviation corresponding to a difference between the OCV and a predefined minimum OCV value, determines a correction factor corresponding to the polarization voltage and the OCV deviation, determines a look-up SOC by correcting the SOC according to the correction factor, determines the magnitude of a charging current corresponding to the look-up SOC, and provides the determined charging current to a charging device.
    Type: Application
    Filed: December 5, 2023
    Publication date: April 25, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jin-Hyung LIM, Young-Jin KIM, Gi-Min NAM, Hyoung Jun AHN, Kyu-Chul LEE, Won-Tae JOE
  • Patent number: 11936233
    Abstract: A charging control apparatus measures a first temperature of a first secondary battery selected from the plurality of secondary batteries, a second temperature of a coolant flowing into the cooling device, a charging current of the secondary battery pack, a first terminal voltage of the first secondary battery and a second terminal voltage of a second secondary battery closest to the cooling device, estimates a temperature of a temperature estimation point of the second secondary battery from a lumped thermal model having a thermal resistance between two points selected from the temperature estimation point of the second secondary battery, the first temperature measurement point and the second temperature measurement point, and measurement data about temperature, current and voltage, and determines the estimated temperature as a minimum temperature of the secondary battery pack, and varies a charging power provided to the secondary battery pack according to the minimum temperature.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: March 19, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jin-Hyung Lim, Gi-Min Nam, Kyu-Chul Lee, Hyoung Jun Ahn, Won-Tae Joe
  • Patent number: 11928171
    Abstract: An example uniform resource locator (URL) information providing method includes obtaining a text from a document including location information and identifying the location information, transmitting an original URL corresponding to the identified location information to an external apparatus and receiving a shortened URL corresponding to the original URL, generating an optical recognition code corresponding to the received shortened URL and obtaining information related to a content provided from the original URL from the external apparatus based on the original URL, changing the document based on the shortened URL, the optical recognition code, and the information related to the content provided from the original URL, and generating the changed document as page description language data.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: March 12, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ji Hyun Yoon, Jung Nam Bae, Yoon Soo Lee, Chul Gee Lee, Tae Soon Kim
  • Publication number: 20240079597
    Abstract: Proposed is an all-solid-state battery including a self-standing sheet layer positioned on a negative electrode current collector. The all-solid-state battery may include the negative electrode current collector, the self-standing sheet layer positioned on the negative electrode current collector, a solid electrolyte layer positioned on the sheet layer, a positive electrode active material layer positioned on the solid electrolyte layer, and a positive electrode current collector positioned on the positive electrode active material layer. The sheet layer contains carbon nanotubes.
    Type: Application
    Filed: May 4, 2023
    Publication date: March 7, 2024
    Applicants: Hyundai Motor Company, Kia Corporation, Foundation of Soongsil University-Industry Cooperation
    Inventors: Jae Min Lim, Hee Soo Kang, Young Jin Nam, Soon Chul Byun, Young Jin Jeong, Gyo Sik Kim, Hae Joo Kim, Jeong Yun Lee
  • Publication number: 20240040879
    Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.
    Type: Application
    Filed: October 6, 2023
    Publication date: February 1, 2024
    Inventors: Hyung Uk Jang, Chul Nam
  • Publication number: 20230371322
    Abstract: A method of fabricating a display panel including a display region having a first pixel region where pixels are disposed, and a sensing region having a second pixel region where pixel groups are disposed and a light transmitting part disposed between the pixel groups, is discussed. The method can include forming a light shield layer at least in the sensing region, wherein the light shield layer includes an opening hole corresponding to the light transmitting part and exposes the light transmitting part to a laser beam through the opening hole. The method can further include forming a metal layer spaced apart from the light blocking layer in the first pixel region of the display region and the sensing region, and irradiating the laser beam to at least the sensing region to remove the metal layer from the light transmitting part.
    Type: Application
    Filed: July 24, 2023
    Publication date: November 16, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Duk Young JEONG, Chul NAM, Byeong Seong SO
  • Patent number: 11818934
    Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: November 14, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Uk Jang, Chul Nam
  • Patent number: 11745336
    Abstract: Proposed is an elastic body having variable rigidity, wherein the elastic body is used in a series elastic actuator module, connects an input and an output, and has a rigidity that varies according to the applied torque. The elastic body having variable rigidity comprises: a connection part which receives torque from the input side or the output side; and a spring part connected to and receiving torque from the one selected from among the input side and the output side which is different from the connection part, wherein the spring part is formed integrally with the connection part and has a rigidity that varies as the connection part and the spring part come into contact with each other due to deformation caused by the applied torque.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: September 5, 2023
    Assignee: ROBOTIS CO., LTD.
    Inventors: Wook Jang, Hyoung Chul Nam, Byoung Soo Kim
  • Publication number: 20220344447
    Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 27, 2022
    Inventors: Donghyun LEE, Chul NAM, Hyuck CHOI
  • Publication number: 20220315985
    Abstract: Provided is an emulsion composition for digital PCR and uniform partitioning method of PCR samples for a digital polymerase chain reaction (digital PCR). With a digital polymerase chain reaction (digital PCR) emulsion composition for uniformly partitioning a PCR sample, a preparation method thereof, and a uniform partitioning method of a PCR sample according to the present invention, a PCR reagent to be amplified may be easily and rapidly prepared in an emulsion form, and reliability of digital PCR results may be significantly improved by allowing the formed emulsion to be uniformly partitioned using a cylindrical plate to which a reaction film is attached.
    Type: Application
    Filed: August 29, 2019
    Publication date: October 6, 2022
    Inventors: Sung Woon LEE, Ho Chul NAM, Tae Ho YOON
  • Publication number: 20220276107
    Abstract: The present invention relates to a load torque detection technology, and more particularly, to a device and method for load torque detection in a robot system. According to an embodiment of the present invention, it is possible to accurately detect the load torque without requiring a position sensor included in a load torque measurement actuator to have a multi-revolution function or additional power supply.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 1, 2022
    Applicant: ROBOTIS CO., LTD.
    Inventors: Byoung Soo KIM, In Yong HA, Yong Hee JEON, Soo Kyung SON, Hyoung Chul NAM
  • Patent number: 11389285
    Abstract: The present invention relates to a bellows framework having a concave-convex structure on at least one of outer and inner sides using three-dimensional printing technology and a method of producing thereof, and an artificial tracheal replacement comprising an epithelium part formed on the inner side of the bellows framework and an annular cartilage part formed along the circumference of concave-convex grooves on the outer side and a method of producing thereof.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: July 19, 2022
    Assignees: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION, THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY—ACADEMIC COOPERATION FOUNDATION, GACHON UNIVERSITY OF INDUSTRY—ACADEMIC COOPERATION FOUNDATION
    Inventors: Jeong Hun Park, Dong-Woo Cho, Jung-Seob Lee, Ju Young Park, Min Jun Ahn, Inn Chul Nam, Sung Won Kim, Jae Yeon Lee, Jin Woo Lee, Sun Hwa Park, Byeong Gon Yun
  • Publication number: 20220118608
    Abstract: Proposed is an elastic body having variable rigidity, wherein the elastic body is used in a series elastic actuator module, connects an input and an output, and has a rigidity that varies according to the applied torque. The elastic body having variable rigidity comprises: a connection part which receives torque from the input side or the output side; and a spring part connected to and receiving torque from the one selected from among the input side and the output side which is different from the connection part, wherein the spring part is formed integrally with the connection part and has a rigidity that varies as the connection part and the spring part come into contact with each other due to deformation caused by the applied torque.
    Type: Application
    Filed: April 5, 2019
    Publication date: April 21, 2022
    Inventors: Wook JANG, Hyoung Chul NAM, Byoung Soo KIM
  • Publication number: 20220069028
    Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 3, 2022
    Inventors: Hyung Uk Jang, Chul Nam
  • Patent number: 11260393
    Abstract: A digital PCR device using centrifugal force. The present disclosure comprises: sample dish on which a microwell film having formed microwells is mounted; a door unit for inputting a sample while rotating the sample dish, and controlling the temperature of the sample which has been fractionated in the microwells by means of the centrifugal force and thus performing a PCR process; and a scan head unit for reading a fluorescent signal while rotating the sample which has been amplified in the microwells during the PCR process.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: March 1, 2022
    Inventors: Sung Woon Lee, Ho Chul Nam
  • Patent number: 11232756
    Abstract: An electroluminescent display device having a plurality of pixels is disclosed. Each pixel includes a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, to generate pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node, a light emitting element connected between the fourth node and an input terminal for a low-level source voltage, an internal compensator including first and second capacitors, and switching transistors, and a kick-back compensation transistor to apply a DC voltage higher than an initialization voltage to the first node in a kick-back compensation period between an initialization period and a data writing period.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: January 25, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung-Uk Jang, Chul Nam, Byeong-Seong So, Young-Sung Cho
  • Publication number: 20220005906
    Abstract: Provided are a display panel and a method of fabricating the same. The display panel includes a display region including a first pixel region where a plurality of pixels are disposed, a sensing region including a second pixel region where a plurality of pixel groups are disposed, and a light transmitting part disposed between the pixel groups. At least the second pixel region includes a light shield layer, and the light shield layer includes an opening hole corresponding to the light transmitting part.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Duk Young JEONG, Chul NAM, Byeong Seong SO
  • Patent number: 11105397
    Abstract: A gear module includes: an external gear eccentrically rotating and having a plurality of teeth formed along an outer peripheral surface thereof; and an internal gear having a plurality of grooves formed along an inner peripheral surface thereof, wherein each groove and each pin come into contact with each other with two contact points, and each groove is formed concavely from an overlapping portion between a first circular sector having a first curvature radius r1 larger than a curvature radius of each pin and a first circular arc coming into contact with one contact point and a second circular sector having a second curvature radius larger than the curvature radius of each pin and a second circular arc coming into contact with another contact point, the first curvature radius and the second curvature radius passing through a center point of each pin and having the same size as each other.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: August 31, 2021
    Assignee: ROBOTIS CO., LTD.
    Inventors: Hyoung Chul Nam, Byoung Soo Kim, Wook Jang
  • Publication number: 20210201759
    Abstract: An electroluminescent display device has a plurality of pixels and each pixel includes a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, the driving transistor generating pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node, an internal compensator comprising a first capacitor connected between the first node and a second node, and a second capacitor connected between the second node and an input terminal for the high-level source voltage, the internal compensator controlling a threshold voltage of the driving transistor with reference to a first scan signal, a second scan signal opposite to the first scan signal in phase, a third scan signal lagging the first scan signal in phase, a fourth scan signal leading the first scan signal in phase, and an emission signal, and a light emitting element connected between a fifth node to be connected to the fourth node and an inp
    Type: Application
    Filed: December 28, 2020
    Publication date: July 1, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Young-Sung Cho, Chul Nam, Byeong-Seong So, Hyung-Uk Jang