Patents by Inventor Do-Young Byun
Do-Young Byun 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: 20240131799Abstract: Disclosed is a printing apparatus for a 3D surface, which performs printing by ejecting a droplet onto a 3D surface and controlling an electric field on an impact path of the droplet, the printing apparatus including: a ejecting environment information provider configured to provide ejecting environment information between a nozzle and an impact point; and a controller configured to predict a result of printing on an actual substrate by accumulating previous printing results according to printing conditions and the ejecting environment information into a database, and perform the printing on the 3D surface while changing the printing conditions provided by the database based on the ejecting environment information provided by the ejecting environment information provider.Type: ApplicationFiled: November 23, 2022Publication date: April 25, 2024Inventors: Do Young Byun, Shaheer Mohiuddin Khalil, Vu Dat Nguyen, Baek Hoon Seong
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Publication number: 20240124062Abstract: A vehicle body structure includes: a roof side assembly connecting upper ends of pillars of a vehicle body along the forward/backward direction of the vehicle body, the roof side assembly constituting an A-pillar of the vehicle body; and an outer garnish coupled to the outside of the roof side assembly, wherein the roof side assembly includes: a pipe having a closed cross-section shape and elongated in the forward/backward direction of the vehicle body so as to form a closed section; an upper reinforcement member coupled to the upper side of the pipe and elongated in the forward/backward direction of the vehicle body; a lower reinforcement member coupled to the lower side of the pipe and elongated in the forward/backward direction of the vehicle body; and an inner reinforcement member coupled to the vehicle body inner side of the pipe and elongated in the forward/backward direction of the vehicle body.Type: ApplicationFiled: April 13, 2023Publication date: April 18, 2024Applicants: Hyundai Motor Company, Kia Corporation, HYUNDAI MOBIS CO., LTD.Inventors: Do Hoi KIM, Sun Ho SONG, Jae Young LIM, Sea Cheoul SONG, Kang Chul LEE, Tae Ou PARK, Jae Sup BYUN, Jang Ho KIM
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Publication number: 20240092079Abstract: The present disclosure relates to a method for aligning a plurality of nozzle tips, the method comprising: a first nozzle aligning step of setting a reference position of a first nozzle tip for discharging ink within a working area through an image of a first camera observing the working area above a substrate and a second camera observing the working area in an inclined direction; a second nozzle aligning step of setting a reference position of a second nozzle tip for discharging ink within the working area through the image of the first camera and the second camera; a step of detecting a position of a substrate based on the image of the second camera; and a printing preparation step of positioning the first nozzle tip and the second nozzle tip to a printing position on the substrate.Type: ApplicationFiled: November 28, 2023Publication date: March 21, 2024Inventors: Do Young BYUN, Vu Dat NGUYEN, Kwangsun JEON
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Publication number: 20230302718Abstract: The present disclosure relates to an additive manufacturing system and additive manufacturing method comprising a printing platform that sprays a droplet and that deposits the droplet on a substrate or a build platform by attractive-force control of an electric field to form at least one layer of a laminated body in a layer by layer method; a flattening unit that flattens the laminated body formed by the printing platform to a preset height; a curing unit that cures the laminated body flattened by the flattening unit; and a controller that controls the printing platform, the flattening unit and the curing unit, thereby significantly increasing the manufacturing speed while improving the quality of additive manufacturing.Type: ApplicationFiled: March 10, 2023Publication date: September 28, 2023Inventors: Do Young BYUN, Vu Dat NGUYEN, Hyung Dong LEE
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Publication number: 20230286272Abstract: Disclosed are an inkjet printhead and a method of manufacturing the same, the inkjet printhead including: a first layer including an inlet formed to penetrate a substrate and introduce ink therein, and a plurality of membranes; a second layer disposed beneath the first layer, and including a manifold formed to penetrate a substrate and communicate with the inlet or recessed on a top of the substrate, and a plurality of nozzle channels formed to penetrate the substrate below the membrane and allow the ink transferred from the manifold to flow therein; a third layer disposed beneath the second layer, and including a plurality of nozzles formed in a substrate and communicating the plurality of nozzle channels; a piezoelectric actuator formed on the first layer formed with the membrane, and including a lower first electrode, a piezoelectric body on the first electrode, and a second electrode on the piezoelectric body; a first voltage controller configured to oscillate the membrane by applying a pulse voltage to tType: ApplicationFiled: March 8, 2023Publication date: September 14, 2023Inventors: Do Young BYUN, Vu Dat NGUYEN, Chihyun PARK, Byungjik LIM, Hyungdong LEE, Hyunwoong YOO, Jaewoo JOUNG
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Publication number: 20230129644Abstract: The present disclosure relates to a pick-and-place apparatus of micro LED chip for chip-repairing of micro LED display, including a nozzle having a capillary form and having a nozzle tip that is smaller than a top size area of the micro LED chip; a pressure adjustment part that applies negative pressure inside the nozzle to adsorb the micro LED chip to the nozzle tip and applies positive pressure inside the nozzle or removes the negative pressure inside the nozzle to mount the micro LED chip adsorbed to the nozzle tip onto a repair pixel; an imaging part that monitors a position and posture of the micro LED chip adsorbed to the nozzle tip in real time; a moving part that moves the nozzle; and a control part that receives image information from the imaging part, and mounts the micro LED chip onto a repair pixel while controlling the pressure adjustment part and the moving part.Type: ApplicationFiled: October 6, 2022Publication date: April 27, 2023Inventors: Do Young BYUN, Vu Dat NGUYEN
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Publication number: 20230094682Abstract: The present disclosure relates to a printing apparatus with a plurality of nozzle heads and method for aligning a plurality of nozzle tips. The printing apparatus with a plurality of nozzle heads according to the present disclosure includes a first nozzle head having a first nozzle tip for discharging ink and a first moving part for moving the first nozzle tip, and disposed at one side of a working area on a substrate; a second nozzle head having a second nozzle tip for discharging ink and a second moving part for moving the second nozzle tip, and disposed at the other side of the working area on the substrate; and a first camera disposed above the substrate to observe the first nozzle tip and the second nozzle tip at the same time.Type: ApplicationFiled: December 22, 2021Publication date: March 30, 2023Inventors: Do Young Byun, Vu Dat Nguyen, Kwangsun Jeon
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Publication number: 20230041012Abstract: The present disclosure relates to a printing apparatus, and the printing apparatus according to the present disclosure includes an optical unit for expanding and displaying a hitting point of ink, from above a substrate; and a nozzle unit for ejecting the ink, wherein the nozzle unit includes a nozzle body that is obliquely disposed with respect to the substrate; and a nozzle that is coupled to the nozzle body, and has a flow path from which the ink is ejected, and has a tip that is bended towards the substrate.Type: ApplicationFiled: August 2, 2022Publication date: February 9, 2023Inventors: Do Young BYUN, Vu Dat NGUYEN
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Patent number: 11383518Abstract: The present disclosure relates to an induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode, and the induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode according to the present disclosure includes a nozzle for discharging supplied solution towards an opposite substrate through a nozzle hole formed at one end; a main electrode coated with an insulator and interpolated inside the nozzle, thus not contacting the solution inside the nozzle but separated from the solution; the induced auxiliary electrode made of a conductive material and formed at an outer surface of the nozzle; and a voltage supply for applying voltage to the main electrode.Type: GrantFiled: February 25, 2021Date of Patent: July 12, 2022Assignee: Enjet Co. Ltd.Inventors: Do Young Byun, Yong Hee Jang, Vu Dat Nguyen
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Patent number: 11355360Abstract: Disclosed are an underfill method and apparatus for a semiconductor package, the underfill method includes loading a substrate; charging a filler to be filled in between the substrate and a device; applying the filler to the substrate; and subjecting the applied filler to an electric field.Type: GrantFiled: September 30, 2019Date of Patent: June 7, 2022Assignee: ENJET CO., LTD.Inventors: Do Young Byun, Vu Dat Nguyen, Yong Hee Jang
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Publication number: 20210277270Abstract: A conductive ink composition according to the present disclosure is a conductive ink composition that can be printed on a substrate, and this conductive ink composition includes a first metal precursor of which a first metal ion may be reduced to a first metal by heat, to form a conductive coating film on the substrate, and a photothermal material for absorbing light energy such as laser and discharges the heat to surroundings, to raise the surrounding temperature to a temperature not below the temperature at which the first metal ion may be reduced, and therefore the present disclosure enables to easily form a coating film that includes a conductive first metal regarding a disconnected point during a process of forming a fine pattern, thereby enabling efficient repair.Type: ApplicationFiled: March 4, 2021Publication date: September 9, 2021Applicant: ENJET CO. LTD.Inventors: Do Young BYUN, Won Il SON
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Publication number: 20210260876Abstract: The present disclosure relates to an induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode, and the induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode according to the present disclosure includes a nozzle for discharging supplied solution towards an opposite substrate through a nozzle hole formed at one end; a main electrode coated with an insulator and interpolated inside the nozzle, thus not contacting the solution inside the nozzle but separated from the solution; the induced auxiliary electrode made of a conductive material and formed at an outer surface of the nozzle; and a voltage supply for applying voltage to the main electrode.Type: ApplicationFiled: February 25, 2021Publication date: August 26, 2021Inventors: Do Young BYUN, Yong Hee JANG, Vu Dat NGUYEN
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Patent number: 10864730Abstract: Disclosed is an electrohydrodynamic printing apparatus including: a nozzle configured to discharge liquid toward a substrate; a voltage applier configured to form an electric field between the nozzle and the substrate; and a laser beam emitter configured to emit a laser beam toward a position to which liquid is discharged on the substrate. Thus, it is possible to accurately and stably form a microscale deposition structure.Type: GrantFiled: September 27, 2019Date of Patent: December 15, 2020Assignee: ENJET CO. LTD.Inventors: Do Young Byun, Vu Dat Nguyen, Kwangsun Jeon, Yong Hee Jang
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Publication number: 20200357661Abstract: Disclosed are an underfill method and apparatus for a semiconductor package, the underfill method includes loading a substrate; charging a filler to be filled in between the substrate and a device; applying the filler to the substrate; and subjecting the applied filler to an electric field.Type: ApplicationFiled: September 30, 2019Publication date: November 12, 2020Inventors: Do Young BYUN, Vu Dat NGUYEN, Yong Hee JANG
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Patent number: 10828896Abstract: Disclosed is an induced electrohydrodynamic (EHD) jet printing apparatus including: a nozzle configured to discharge a fed solution to an opposite substrate; a main electrode contactlessly isolated from the solution inside the nozzle by an insulator; and a voltage supplier configured to apply voltage to the main electrode.Type: GrantFiled: August 16, 2019Date of Patent: November 10, 2020Assignee: ENJET CO. LTD.Inventors: Do Young Byun, Vu Dat Nguyen, Yong Hee Jang
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Publication number: 20200331270Abstract: Disclosed is an induced electrohydrodynamic (EHD) jet printing apparatus including: a nozzle configured to discharge a fed solution to an opposite substrate; a main electrode contactlessly isolated from the solution inside the nozzle by an insulator; and a voltage supplier configured to apply voltage to the main electrode.Type: ApplicationFiled: August 16, 2019Publication date: October 22, 2020Inventors: Do Young BYUN, Vu Dat NGUYEN, Yong Hee JANG
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Patent number: 10807358Abstract: Disclosed is a printing apparatus. In an exemplary embodiment, the printing apparatus includes a nozzle for ejecting ink, a driving device for moving the nozzle, an imaging device for capturing an image displaying an ink printing process, and an automatic positioning controller for automatically setting a position of the nozzle based on the image captured by the imaging device while moving the nozzle by means of the driving device.Type: GrantFiled: March 19, 2019Date of Patent: October 20, 2020Assignee: ENJET CO. LTD.Inventors: Do Young Byun, Vu Dat Nguyen
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Patent number: 10772211Abstract: Disclosed are a cartridge nozzle assembly and an apparatus for injecting ink including the cartridge nozzle assembly. In the ink injecting apparatus for forming a pattern by adhering the ink injected from a nozzle onto a substrate, the ink injecting apparatus includes a cartridge nozzle assembly, in a cartridge type, including a chamber sealingly accommodating the ink, and the nozzle for discharging the ink accommodated in the chamber; and a cartridge nozzle fixing member for replaceably fixing the cartridge nozzle assembly.Type: GrantFiled: February 7, 2019Date of Patent: September 8, 2020Assignee: ENJET CO. LTD.Inventors: Do Young Byun, Vu Dat Nguyen
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Publication number: 20200189280Abstract: Disclosed is an electrohydrodynamic printing apparatus including: a nozzle configured to discharge liquid toward a substrate; a voltage applier configured to form an electric field between the nozzle and the substrate; and a laser beam emitter configured to emit a laser beam toward a position to which liquid is discharged on the substrate. Thus, it is possible to accurately and stably form a microscale deposition structure.Type: ApplicationFiled: September 27, 2019Publication date: June 18, 2020Inventors: Do Young BYUN, Vu Dat NGUYEN, Kwangsun JEON, Yong Hee JANG
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Publication number: 20190291415Abstract: Disclosed is a printing apparatus. In an exemplary embodiment, the printing apparatus includes a nozzle for ejecting ink, a driving device for moving the nozzle, an imaging device for capturing an image displaying an ink printing process, and an automatic positioning controller for automatically setting a position of the nozzle based on the image captured by the imaging device while moving the nozzle by means of the driving device.Type: ApplicationFiled: March 19, 2019Publication date: September 26, 2019Applicant: ENJET CO. LTD.Inventors: Do Young BYUN, Vu Dat NGUYEN