Patents by Inventor Jang-kyu CHOI

Jang-kyu 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: 20240075740
    Abstract: An inkjet head unit capable of performing high-resolution pixel printing on a large-size substrate and a substrate treatment apparatus including the inkjet head unit are provided. The substrate treatment apparatus includes: a processing unit supporting and moving a substrate; an inkjet head unit performing pixel printing on the substrate; and a gantry unit moving the inkjet head unit over the substrate, wherein the inkjet head unit includes head packs, which include a plurality of nozzles ejecting a substrate treatment liquid onto the substrate, and a head base, in which the head packs are installed and the head packs are disposed in a single row in the head base.
    Type: Application
    Filed: July 24, 2023
    Publication date: March 7, 2024
    Inventors: Jang Mi WOO, Jin Hyuck Yang, Yong Kyu Cho, Cheon Su Cho, Ki Hoon Choi
  • Patent number: 9773645
    Abstract: A remote plasma generator includes a body, a driver, and a protection tube. The body includes a gas injection port, a plasma exhaust port, and a plasma generation pipe through which discharge gas or plasma flow. The driver is coupled to the body and generates a magnetic field and plasma in the body. The protection tube is at an inner side of the plasma generation pipe to protect the plasma generation pipe from plasma.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: September 26, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., DANDAN CO., LTD., NEW POWER PLASMA CO., LTD.
    Inventors: Ja-woo Lee, Chung-huan Jeon, Heok-jae Lee, Jang-hyoun Youm, Sang-jean Jeon, Kwang-young Jung, Sun-uk Kim, Kang-ho Lee, Jung-hyun Cho, Soon-im Wi, Yun-sik Yang, Moo-jin Kim, Jang-kyu Choi
  • Publication number: 20160307739
    Abstract: A remote plasma generator includes a body, a driver, and a protection tube. The body includes a gas injection port, a plasma exhaust port, and a plasma generation pipe through which discharge gas or plasma flow. The driver is coupled to the body and generates a magnetic field and plasma in the body. The protection tube is at an inner side of the plasma generation pipe to protect the plasma generation pipe from plasma.
    Type: Application
    Filed: January 29, 2016
    Publication date: October 20, 2016
    Applicants: DANDAN CO., LTD., New Power Plasma Co., Ltd.
    Inventors: Ja-woo LEE, Chung-huan JEON, Heok-jae LEE, Jang-hyoun YOUM, Sang-jean JEON, Kwang-young JUNG, Sun-uk KIM, Kang-ho LEE, Jung-hyun CHO, Soon-im WI, Yun-sik YANG, Moo-jin KIM, Jang-kyu CHOI