公开(公告)号：US20190291415A1

公开(公告)日：2019-09-26

申请号：US16357352

申请日：2019-03-19

Applicant: ENJET CO. LTD.

Inventor： Do Young BYUN ,  Vu Dat NGUYEN

IPC: B41J2/045

Abstract: 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.

公开(公告)号：US20180304621A1

公开(公告)日：2018-10-25

申请号：US15843001

申请日：2017-12-15

Applicant: Enjet Co. Ltd.

Inventor： Do Young BYUN

IPC: B41J2/045 ,  B41J2/175 ,  B41J2/14 ,  B41J2/07

CPC classification number: B41J2/04511 ,  B41J2/04 ,  B41J2/072 ,  B41J2/1408 ,  B41J2/14104 ,  B41J2/14201 ,  B41J2/175 ,  B41J2202/02 ,  H05K2203/013

Abstract: The present disclosure relates to an ink jetting apparatus and a printing system including the same, the ink jetting apparatus including a liquid droplet generating unit configured to generate liquid droplets and jet the generated liquid droplets, a guide channel unit having a channel to guide the jetted liquid droplets and control evaporation of the liquid droplets, and being configured to protect the liquid droplets from thermal and physical disturbance; and a nozzle unit configured to discharge the liquid droplets that passed through the guide channel unit towards a substrate.

公开(公告)号：US20240376584A1

公开(公告)日：2024-11-14

申请号：US18656136

申请日：2024-05-06

Applicant: ENJET CO., LTD

Inventor： Do Young BYUN ,  Won-il SON ,  Jang Seung JUN

IPC: C23C4/12 ,  B05B5/025 ,  C23C4/18

Abstract: The present disclosure relates to a method of forming a conductive pattern by printing a conductive ink on a substrate having a three-dimensional surface. The method includes a substrate providing step of mounting the substrate; an ink injection step of printing a conformal conductive pattern on the three-dimensional surface of the substrate by injecting a conductive ink using a nozzle while applying an electric field; and a curing step of forming the injected conductive pattern into a cured conductive pattern by curing.

公开(公告)号：US20240376330A1

公开(公告)日：2024-11-14

申请号：US18656186

申请日：2024-05-06

Applicant: ENJET CO., LTD

Inventor： Do Young BYUN ,  Won-il SON ,  Jang Seung JUN

IPC: C09D11/52 ,  C09D11/03 ,  C09D11/102 ,  C09D11/107 ,  H01L33/40 ,  H01L33/62

Abstract: The present disclosure relates to a conductive ink composition for printing that is injected onto a substrate by an EHD method to form a conductive pattern, and includes: a binder that imparts adhesion to the substrate; a charge transfer element that provides a charge that moves by an electric field; and a conductive element that imparts conductivity to the conductive pattern.

公开(公告)号：US20240092079A1

公开(公告)日：2024-03-21

申请号：US18521721

申请日：2023-11-28

Applicant: ENJET CO. LTD.

Inventor： Do Young BYUN ,  Vu Dat NGUYEN ,  Kwangsun JEON

IPC: B41J2/125 ,  B41J2/06 ,  B41J2/14

CPC classification number: B41J2/125 ,  B41J2/06 ,  B41J2/14 ,  B41J2202/15

Abstract: 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.

公开(公告)号：US20210277270A1

公开(公告)日：2021-09-09

申请号：US17191800

申请日：2021-03-04

Applicant: ENJET CO. LTD.

Inventor： Do Young BYUN ,  Won Il SON

IPC: C09D11/52 ,  C09D11/037 ,  C09D11/102 ,  C09D11/322 ,  H01B1/22

Abstract: 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.

公开(公告)号：US20210260876A1

公开(公告)日：2021-08-26

申请号：US17185486

申请日：2021-02-25

Applicant: ENJET CO. LTD.

Inventor： Do Young BYUN ,  Yong Hee JANG ,  Vu Dat NGUYEN

IPC: B41J2/14

Abstract: 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.