Patents by Inventor Bongman CHOI

Bongman 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: 11975349
    Abstract: An apparatus for supplying chemical liquid may include a chemical liquid supply member for supplying a chemical liquid onto a substrate, a chemical liquid storing member for storing the chemical liquid, a chemical liquid receiving assembly for receiving the chemical liquid provided from the chemical liquid storing member and for providing the chemical liquid into the chemical liquid supply member, a first chemical liquid supply line for supplying the chemical liquid from the chemical liquid storing member to the chemical liquid receiving assembly, and a second chemical liquid supply line for supplying the chemical liquid from the chemical liquid receiving assembly to the chemical liquid supply member.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: May 7, 2024
    Assignee: Semes Co., Ltd.
    Inventors: Jinwoo Yang, Bongman Choi, Dongyun Lee
  • Publication number: 20240139699
    Abstract: The disclosure provides a chemical liquid supply apparatus including a chemical liquid storage tank storing a chemical liquid including a plurality of nanorods, a circulation pipe having both ends connected to the chemical liquid storage tank and including a first branch pipe and a second branch pipe, a classifier located at the second branch pipe and including a classification chip and a power supply, and a discharge pipe configured to discharge the chemical liquid to an outside of the circulation pipe, wherein the classification chip collects and releases nanorods of a certain size among the plurality of nanorods, the discharge pipe discharges the nanorods of the certain size to the outside before the nanorods of the certain size released by the classification chip are returned to the chemical liquid storage tank, and the power supply supplies an alternating current to the classification chip.
    Type: Application
    Filed: September 29, 2023
    Publication date: May 2, 2024
    Inventors: Donghwa Lee, Daigeon Yoon, Bongman Choi, Soohong Lee, Daesung Kim
  • Publication number: 20240131852
    Abstract: Provided is a chemical storage apparatus including a reservoir including a chemical tank configured to store a chemical, a first fixing member disposed on an upper surface of the chemical tank, and a second fixing member disposed on a lower surface of the chemical tank, a sensor configured to measure a specific parameter of the chemical stored in the reservoir, a receptacle having a space in which the sensor is accommodated, and coupling members for attaching or detaching the receptacle to or from the first fixing member and the second fixing member, respectively.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 25, 2024
    Applicant: SEMES CO., LTD.
    Inventors: Donghwa Lee, Daigeon Yoon, Soohong Lee, Bongman Choi, Daesung Kim
  • Publication number: 20220184653
    Abstract: An apparatus for supplying chemical liquid may include a chemical liquid supply member for supplying a chemical liquid onto a substrate, a chemical liquid storing member for storing the chemical liquid, a chemical liquid receiving assembly for receiving the chemical liquid provided from the chemical liquid storing member and for providing the chemical liquid into the chemical liquid supply member, a first chemical liquid supply line for supplying the chemical liquid from the chemical liquid storing member to the chemical liquid receiving assembly, and a second chemical liquid supply line for supplying the chemical liquid from the chemical liquid receiving assembly to the chemical liquid supply member.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 16, 2022
    Applicant: Semes Co., Ltd.
    Inventors: Jinwoo YANG, Bongman CHOI, Dongyun LEE