Patents by Inventor Yong Jae Choi

Yong Jae 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).

  • Patent number: 11970226
    Abstract: An elastic crawler capable of effectively preventing an occurrence of vibration, noise and cracks during driving while improving durability is provided. The elastic crawler includes a coupling portion arranged at equal intervals in a circumferential direction at a center in a left and right direction of a crawler body, a steel core arranged in the left and right direction between adjacent coupling portions in the circumferential direction of the crawler body, and two rows of left and right lugs installed on an outer periphery of the crawler body, wherein each of the rows of the lugs includes driving lugs arranged in an oblique direction with respect to the steel core, and each of the driving lugs overlaps with two adjacent steel cores in the circumferential direction.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: April 30, 2024
    Inventor: Yong Jae Choi
  • Publication number: 20240110892
    Abstract: An apparatus for automatically inspecting the welding state of a battery module is configured to inspect welding states of welding parts of a plurality of leads for electrical connection based on a deep penetration inspection using application of eddy current to the welding parts of the leads.
    Type: Application
    Filed: March 30, 2023
    Publication date: April 4, 2024
    Inventors: Yong Bae Park, Joon Dong Oh, Young Kwon Kim, Ho Jae Shin, Baek Young Choi
  • Publication number: 20240099081
    Abstract: A flexible display device including a substrate, a light emitting layer, a first insulating layer, and a conductive layer. The substrate includes a bent region and a non-bent region. The light emitting layer overlaps the non-bent region. The first insulating layer is disposed on the substrate. The conductive layer is disposed on the first insulating layer. A sidewall of the first insulating layer includes a first tapered surface. The first tapered surface includes at least three curved surface portions continuously arranged with one another.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Inventors: Ki Hyun CHO, Yong Jae PARK, Sang Jo LEE, Won Suk CHOI, Yoon Sun CHOI
  • Patent number: 11937476
    Abstract: A display device comprises a substrate; a circuit array layer comprising pixel drivers, data lines, first dummy lines, and second dummy lines; and a light emitting array layer. The display area comprises middle, first side, and second side regions. The data lines comprise first, second, and third data lines disposed in the middle, first side, and second side regions, respectively. The first dummy lines comprise a first data detour line disposed in the first side region and adjacent to a part of the second data line, and auxiliary lines. The second dummy lines comprise a second data detour line configured to connect the first data detour line to the third data line, and additional lines. The auxiliary lines comprise a bias auxiliary line to which a bias power is applied; and a second power auxiliary line to which a second power is applied.
    Type: Grant
    Filed: May 4, 2023
    Date of Patent: March 19, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Sung An, Sung Ho Kim, Yong Jae Kim, Yun Hwan Park, Yoon Jee Shin, Sug Woo Jung, Hyun Wook Choi
  • Publication number: 20240074065
    Abstract: A reprint apparatus may include: a defect checking unit configured to check a defective portion in a solder resist layer of a circuit board; a material filling unit positioned above the circuit board to fill the defective portion with a filling material; and a curing unit configured to cure the material filled in the defective portion. The defect checking unit may be configured to calculate a volume of the defective portion, and the material filling unit may be configured to calculate a discharge amount of the filling material based on the calculated volume of the defective portion, and then discharge the filling material by the discharge amount.
    Type: Application
    Filed: February 17, 2023
    Publication date: February 29, 2024
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Do Jae YOO, Yong Gil NAMGUNG, Jong Hoon SHIN, Sang Soon CHOI, Young Chul AN
  • Publication number: 20230077537
    Abstract: An ultrasonic linear motor according to one embodiment is disclosed. The vibrating body includes an elastic body and a first piezoelectric element and a second piezoelectric element which are attached to two surfaces of the elastic body, a first weight and a second weight which are disposed on two side end portions of the vibrating body, a moving shaft which is coupled to a central portion of the vibrating body and moves according to a displacement of each of the piezoelectric elements, and a moving body which is fitted to the moving shaft and moves on the moving shaft.
    Type: Application
    Filed: June 9, 2020
    Publication date: March 16, 2023
    Inventors: Sang Young LEE, Kab Young KIM, Yong Jae CHOI
  • Publication number: 20230058873
    Abstract: To prevent vertical vibration of track rollers as much as possible when transferring between overhanging portions of each core metal while securing the flexibility of a crawler main body. The present invention includes core metals 10 embedded in a crawler main body 9 at substantially equal intervals, and rolling paths 12, 13 for track rollers arranged on both sides in a crawler width direction of an anti-tread side of the crawler main body 9, and includes overhanging portions 24 to 27 on both sides in a crawler rotation direction of each core metal 10, overhanging from each core metal 10 toward both sides in the crawler rotation direction to support each of the rolling paths 12, 13. The respective overhanging portions 24 to 27 corresponding to the respective rolling paths 12, 13 of each core metal 10 are arranged such that at least tip portions are arranged so as to shift in the crawler width direction within a width of each rolling path 12, 13.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 23, 2023
    Inventor: Yong Jae CHOI
  • Patent number: 11500483
    Abstract: According to an embodiment, a mousepad comprises a cover layer and an integrated keypad. The cover layer has a lateral extension and an upper surface which is usable for placement (placing, putting down) of a computer mouse. The keypad covers a part of said lateral extension. In an area not covered by the keypad there is a mouse parking area. The mousepad comprises a mouse detector associated with the mouse parking area and a corresponding control unit. The control unit is configured such that the keyboard gets activated when the mouse is inside the mouse parking area and gets deactivated when the mouse is outside the mouse parking area.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: November 15, 2022
    Inventor: Yong-Jae Choi
  • Publication number: 20220334657
    Abstract: According to an embodiment, a mousepad comprises a cover layer and an integrated keypad. The cover layer has a lateral extension and an upper surface which is usable for placement (placing, putting down) of a computer mouse. The keypad covers a part of said lateral extension. In an area not covered by the keypad there is a mouse parking area. The mousepad comprises a mouse detector associated with the mouse parking area and a corresponding control unit. The control unit is configured such that the keyboard gets activated when the mouse is inside the mouse parking area and gets deactivated when the mouse is outside the mouse parking area.
    Type: Application
    Filed: April 7, 2022
    Publication date: October 20, 2022
    Inventor: Yong-Jae CHOI
  • Publication number: 20220143419
    Abstract: A mask according to an embodiment comprises: a first substrate; a first wiring arranged on the first substrate; a plurality of piezoelectric elements arranged on the first wiring; a second wiring arranged on the piezoelectric elements; a second substrate arranged on the second wiring; a third wiring arranged on the first substrate and electrically insulated from the first wiring; and a plurality of light-emitting elements arranged between the first and second substrates and arranged on the third wiring, wherein the plurality of light-emitting elements are arranged in areas overlapping, in a vertical direction, areas between the piezoelectric elements.
    Type: Application
    Filed: March 5, 2020
    Publication date: May 12, 2022
    Inventors: Yong Jae CHOI, Gyu Lin LEE, Do Hee KEUM, Beom Sun HONG
  • Patent number: 11198815
    Abstract: An etching composition may include a peracetic acid mixture, a fluorine compound, an organic solvent (e.g., acetate-series organic solvent), and water. The etching composition may be used to selectively etch silicon-germanium (SiGe).
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: December 14, 2021
    Assignees: Samsung Electronics Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Soo Jin Kim, Hyo Sun Lee, Jin Hye Bae, Jung Hun Lim, Yong Jae Choi
  • Publication number: 20210354770
    Abstract: To prevent lateral slip of core metals and vertical vibration of track rollers and improve bendability of a crawler main body between core metals.
    Type: Application
    Filed: March 16, 2021
    Publication date: November 18, 2021
    Inventor: Yong Jae CHOI
  • Publication number: 20210147013
    Abstract: An elastic crawler capable of effectively preventing an occurrence of vibration, noise and cracks during driving while improving durability is provided. The elastic crawler includes a coupling portion arranged at equal intervals in a circumferential direction at a center in a left and right direction of a crawler body, a steel core arranged in the left and right direction between adjacent coupling portions in the circumferential direction of the crawler body, and two rows of left and right lugs installed on an outer periphery of the crawler body, wherein each of the rows of the lugs includes driving lugs arranged in an oblique direction with respect to the steel core, and each of the driving lugs overlaps with two adjacent steel cores in the circumferential direction.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 20, 2021
    Inventor: Yong Jae CHOI
  • Publication number: 20200362242
    Abstract: An etching composition may include a peracetic acid mixture, a fluorine compound, an organic solvent (e.g., acetate-series organic solvent), and water. The etching composition may be used to selectively etch silicon-germanium (SiGe).
    Type: Application
    Filed: August 3, 2020
    Publication date: November 19, 2020
    Applicants: Samsung Electronics Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Soo Jin KIM, Hyo Sun LEE, Jin Hye BAE, Jung Hun LIM, Yong Jae CHOI
  • Patent number: 10800972
    Abstract: An etching composition selectively removes a titanium nitride film from a stacked conductive film structure including a titanium nitride (TiN) film and a tantalum nitride (TaN) film. The etching composition configured to etch titanium nitride (TiN) includes 5 wt % to 30 wt % of hydrogen peroxide, 15 wt % to 50 wt % of acid compound, and 0.001 wt % to 5 wt % of corrosion inhibitor, with respect to a total weight of the etching composition, wherein the acid compound includes at least one of phosphoric acid (H3PO4), nitric acid (HNO3), hydrochloric acid (HCl), hydroiodic acid (HI), hydrobromic acid (HBr), perchloric acid (HClO4), silicic acid (H2SiO3), boric acid (H3BO3), acetic acid (CH3COOH), propionic acid (C2H5COOH), lactic acid (CH3CH(OH)COOH), and glycolic acid (HOCH2COOH).
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: October 13, 2020
    Assignees: Samsung Electronics Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Hyo Sun Lee, Ho Young Kim, Sang Won Bae, Min Goo Kim, Jung Hun Lim, Yong Jae Choi
  • Patent number: 10793775
    Abstract: An etching composition may include a peracetic acid mixture, a fluorine compound, an organic solvent (e.g., acetate-series organic solvent), and water. The etching composition may be used to selectively etch silicon-germanium (SiGe).
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: October 6, 2020
    Assignees: Samsung Electronics Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Soo Jin Kim, Hyo Sun Lee, Jin Hye Bae, Jung Hun Lim, Yong Jae Choi
  • Patent number: 10534483
    Abstract: The present invention relates to a touch panel and, more particularly, to a touch panel capable of improving electrical conductive characteristics of the touch panel, reducing the size of the touch panel, improving the visibility of the touch panel, and minimizing damage to a substrate when a failure test is performed on the touch panel.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: January 14, 2020
    Assignee: LG Innotek Co., Ltd.
    Inventors: Jin Woong Lee, Byung Youl Moon, Jung Hwan Bang, Kwang Yong Jin, Yong Jae Choi
  • Publication number: 20190390111
    Abstract: An etching composition may include a peracetic acid mixture, a fluorine compound, an organic solvent (e.g., acetate-series organic solvent), and water. The etching composition may be used to selectively etch silicon-germanium (SiGe).
    Type: Application
    Filed: August 19, 2019
    Publication date: December 26, 2019
    Applicants: Samsung Electronics Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Soo Jin KIM, Hyo Sun LEE, Jin Hye BAE, Jung Hun LIM, Yong Jae CHOI
  • Publication number: 20190338186
    Abstract: An etching composition selectively removes a titanium nitride film from a stacked conductive film structure including a titanium nitride (TiN) film and a tantalum nitride (TaN) film. The etching composition configured to etch titanium nitride (TiN) includes 5 wt % to 30 wt % of hydrogen peroxide, 15 wt % to 50 wt % of acid compound, and 0.001 wt % to 5 wt % of corrosion inhibitor, with respect to a total weight of the etching composition, wherein the acid compound includes at least one of phosphoric acid (H3PO4), nitric acid (HNO3), hydrochloric acid (HCl), hydroiodic acid (HI), hydrobromic acid (HBr), perchloric acid (HClO4), silicic acid (H2SiO3), boric acid (H3BO3), acetic acid (CH3COOH), propionic acid (C2H5COOH), lactic acid (CH3CH(OH)COOH), and glycolic acid (HOCH2COOH).
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Applicants: Samsung Electronics Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Hyo Sun Lee, Ho Young Kim, Sang Won Bae, Min Goo Kim, Jung Hun Lim, Yong Jae Choi
  • Patent number: 10414978
    Abstract: An etching composition may include a peracetic acid mixture, a fluorine compound, an organic solvent (e.g., acetate-series organic solvent), and water. The etching composition may be used to selectively etch silicon-germanium (SiGe).
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: September 17, 2019
    Assignees: Samsung Electronics Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Soo Jin Kim, Hyo Sun Lee, Jin Hye Bae, Jung Hun Lim, Yong Jae Choi