公开(公告)号：US20230364914A1

公开(公告)日：2023-11-16

申请号：US18307496

申请日：2023-04-26

Applicant: SEMES CO., LTD.

Inventor： Won-Yong JIN ,  Hosang Lee ,  Jiyun Ahn ,  Jae-Duck Lee ,  Suk-Won Jang

IPC: B41J2/165

CPC classification number: B41J2/16579 ,  B41J2/16532 ,  B41J2002/16582

Abstract: A maintenance assembly for an inkjet head may include a housing having an upper face facing a nozzle face on which nozzles for discharging a chemical liquid on a substrate are arranged, and an atmosphere generating part for providing an atmosphere including humidity around the nozzles and the nozzle face such that a humidity of the nozzles and a humidity of the nozzle face are adjusted to a set humidity if the humidity of the nozzles and the humidity of the nozzle face are different from the set humidity.

公开(公告)号：US20230364912A1

公开(公告)日：2023-11-16

申请号：US18305801

申请日：2023-04-24

Applicant: SEMES CO.,LTD.

Inventor： Won-Yong JIN ,  Hosang LEE ,  Jiyun AHN ,  Suk-Won JANG ,  Jae-Duck LEE

IPC: B41J2/165 ,  B41J2/175

CPC classification number: B41J2/16532 ,  B41J2/175

Abstract: A maintenance assembly for an inkjet head may include a housing having an upper face facing a nozzle face on which nozzles for discharging a chemical liquid on a substrate are arranged, and a fluid supplying part for providing a humidity control fluid onto the nozzles and the nozzle face such that a humidity of the nozzles and a humidity of the nozzle face are adjusted to a set humidity if the humidity of the nozzles and the humidity of the nozzle face are different from the set humidity.

公开(公告)号：US20230349791A1

公开(公告)日：2023-11-02

申请号：US18141281

申请日：2023-04-28

Applicant: SEMES CO., LTD.

Inventor： Won-Yong JIN ,  Suk-Won JANG ,  Jae-Duck LEE ,  Hosang LEE

IPC: G01M13/00 ,  B05B15/555 ,  B41J2/165

CPC classification number: G01M13/00 ,  B05B15/555 ,  B41J2/16552 ,  B41P2235/26

Abstract: Provided are a head life evaluation apparatus and method capable of evaluating lifespans of nozzles by using a plurality of chambers having different environments, the head life evaluation apparatus including a head block including at least one first nozzle for ejecting a treatment liquid in an inkjet manner, and a chamber block detachably coupled to the head block and including at least one first chamber corresponding to the first nozzle to evaluate a lifespan of the first nozzle in a first environment.

公开(公告)号：US20230347670A1

公开(公告)日：2023-11-02

申请号：US18303342

申请日：2023-04-19

Applicant: SEMES CO., LTD.

Inventor： Hosang LEE ,  Suk-Won JANG ,  Jae-Duck LEE ,  Won-Yong JIN

IPC: B41J29/377 ,  B41J2/045 ,  B41J29/02

CPC classification number: B41J29/377 ,  B41J2/04566 ,  B41J29/02

Abstract: An inkjet head management apparatus for managing a humidity of an inkjet head including nozzles for ejecting droplets in an inkjet manner includes a housing having an opening on at least one surface thereof, a closer for opening or closing the opening of the housing, and a dehumidifier disposed in the housing to provide a dehumidifying atmosphere toward the opening when the opening is opened.