Patents by Inventor Dong-Ju Choi

Dong-Ju 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).

  • Publication number: 20240154147
    Abstract: An apparatus for manufacturing a pouch-type rechargeable battery includes a preforming portion forming a folding groove in a portion of a protrusion of the pouch-type rechargeable battery, a folding portion disposed on a rear end of the preforming portion and folding the protrusion along the folding groove, a rolling portion disposed on a rear end of the folding portion and pressing the folded protrusion, and a pressing portion disposed on a rear end of the rolling portion and fixing the folded protrusion.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 9, 2024
    Inventors: Seung Won Choi, Dong Ju Kim, Sun Min Park, Sang Mo Kim, Jae Gyu Byun, Won Je Oh, Taek Eon Jeong, Ju Won Hwang
  • Patent number: 11970090
    Abstract: A railess variable seatback type rear seat includes: a linear movement device configured to convert a rotation of a motor into a linear movement; a sliding movement device configured to convert the linear movement into a sliding movement in which a seat cushion is pushed forward or backward; and a reclining angle change device configured to convert the sliding movement into a reclining movement, and to fold a seatback, which is connected to the seat cushion, forward or to recline the seatback backward.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: April 30, 2024
    Assignees: HYUNDAI MOTOR COMPANY, Kia Corporation, Daechang Seat Co.,LTD-Dongtan, Hyundai Transys Inc.
    Inventors: Seung-Hyun Kim, Sang-Hyun Lee, Min-Ju Lee, Byung-Yong Choi, Chan-Ho Jung, Seon-Chae Na, Young-Woon Choi, Jae-Jin Lee, Dong-Hwan Kim, In-Chang Hwang
  • Publication number: 20240131232
    Abstract: Disclosed is an anti-adhesion agent composition which uses a high molecular weight compound having biocompatibility and an oil derived from animals, plants, and minerals so as to improve low viscosity and low strength, which are problems of existing anti-adhesion agents, and prevent adhesion between living tissues. The anti-adhesion composition according to the present disclosure performs a physical barrier function through simple mixing of a polymer material, serving as a physical barrier in its anti-adhesion effect, and a solvent, and remains in the body for a certain period of time, then decomposes, absorbs, and is excreted. The anti-adhesion composition does not interfere with the healing of the wound after surgery, and exhibits an excellent effect of convenient application to the surgical site.
    Type: Application
    Filed: June 13, 2022
    Publication date: April 25, 2024
    Inventors: Sung Joo Hwang, Dong Min Kim, Ji Eun Kim, Yeon Ju Choi, Yong Kyung Hwang
  • Publication number: 20240109397
    Abstract: A method for controlling an electric heater of a vehicular heating, ventilation, and air conditioning (HVAC) system includes turning on the electric heater; determining whether an ambient air temperature of a vehicle is higher than or equal to a threshold ambient air temperature, and a battery temperature is lower than or equal to a threshold battery temperature; determining whether battery efficiency is lower than or equal to threshold efficiency when the ambient air temperature of the vehicle is higher than or equal to the threshold ambient air temperature, and the battery temperature is lower than or equal to the threshold battery temperature; and turning off the electric heater when the battery efficiency is lower than or equal to the threshold efficiency, wherein the electric heater is configured to receive electric energy from the battery.
    Type: Application
    Filed: March 30, 2023
    Publication date: April 4, 2024
    Inventors: Dae Hyun Song, Chang Gi Ryu, Woo Jin Lee, Dong Ju Ko, Hyun Hun Choi, Chun Kyu Kwon, In Uk Ko
  • Publication number: 20240088432
    Abstract: An embodiment sulfur dioxide-based inorganic electrolyte is provided in which the sulfur dioxide-based inorganic electrolyte is represented by a chemical formula M·(A1·Cl(4-x)Fx)z·ySO2. In this formula, M is a first element selected from the group consisting of Li, Na, K, Ca, and Mg, A1 is a second element selected from the group consisting of Al, Fe, Ga, and Cu, x satisfies a first equation 0?x?4, y satisfies a second equation 0?y?6, and z satisfies a third equation 1?z?2.
    Type: Application
    Filed: April 12, 2023
    Publication date: March 14, 2024
    Inventors: Kyu Ju Kwak, Won Keun Kim, Eun Ji Kwon, Samuel Seo, Yeon Jong Oh, Kyoung Han Ryu, Dong Hyun Lee, Han Su Kim, Ji Whan Lee, Seong Hoon Choi, Seung Do Mun
  • Publication number: 20240090326
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound can be a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an emitting material layer (EML).
    Type: Application
    Filed: September 26, 2023
    Publication date: March 14, 2024
    Applicants: LG DISPLAY CO., LTD, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyung-Jin YOON, Dae-Wi YOON, Ji-Ae LEE, Su-Na CHOI, Dong-Hoon CHOI, Min-Ju CHO, JiWon YOON
  • Patent number: 11929497
    Abstract: A negative electrode active material as well as a method of preparing a negative electrode active material which includes preparing a silicon-based compound including SiOx, wherein 0.5<x<1.3; disposing a polymer layer including a polymer compound on the silicon-based compound; disposing a metal catalyst layer on the polymer layer; heat treating the silicon-based compound on which the polymer layer and the metal catalyst layer are disposed; and removing the metal catalyst layer, wherein the polymer compound includes any one selected from the group consisting of glucose, fructose, galactose, maltose, lactose, sucrose, a phenolic resin, a naphthalene resin, a polyvinyl alcohol resin, a urethane resin, polyimide, a furan resin, a cellulose resin, an epoxy resin, a polystyrene resin, a resorcinol-based resin, a phloroglucinol-based resin, a coal-derived pitch, a petroleum-derived pitch, a tar and a mixture of two or more thereof.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: March 12, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Dong Hyuk Kim, Eun Kyung Kim, Yong Ju Lee, Rae Hwan Jo, Jung Hyun Choi
  • Patent number: D757522
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: May 31, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Cheol Kim, Gi-Chun Nam, Eun-Uae Lee, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi
  • Patent number: D757523
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: May 31, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Cheol Kim, Gi-Chun Nam, Eun-Uae Lee, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi
  • Patent number: D758171
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Cheol Kim, Gi-Chun Nam, Eun-Uae Lee, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi
  • Patent number: D758174
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-Uae Lee, Kyu-Cheol Kim, Gi-Chun Nam, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi
  • Patent number: D758178
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Cheol Kim, Gi-Chun Nam, Eun-Uae Lee, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi
  • Patent number: D761645
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: July 19, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Cheol Kim, Gi-Chun Nam, Eun-Uae Lee, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi
  • Patent number: D762109
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: July 26, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-Uae Lee, Kyu-Cheol Kim, Gi-Chun Nam, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi
  • Patent number: D763069
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: August 9, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-Uae Lee, Kyu-Cheol Kim, Gi-Chun Nam, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi
  • Patent number: D777024
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 24, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-Uae Lee, Kyu-Cheol Kim, Gi-Chun Nam, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi
  • Patent number: D784793
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 25, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Kyu-Cheol Kim, Gi-Chun Nam, Eun-Uae Lee, Joon-Taek Lee, Tai-Hyung Ju, Dong-Ju Choi