Patents by Inventor Keon Ahn

Keon Ahn 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: 11972939
    Abstract: The inventive concept provides a method for treating a substrate. The method includes removing a film on the substrate by applying a pulsed laser to the rotating substrate, in which thickness of the film to be removed is measured and pulse energy of the pulsed laser is selected based on the measured thickness of the film.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: April 30, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Ohyeol Kwon, Jun Keon Ahn, Soo Young Park, Jung Hwan Lee
  • Patent number: 11869763
    Abstract: An apparatus and system for treating a substrate includes a chamber having an inner space, a support unit in the inner space and configured to support and rotate the substrate, and first and second laser irradiation unit configured to irradiate first and second laser beams onto the substrate. The first laser irradiation unit includes a first laser light source configured to generate the first laser beam, and a first wavelength adjusting member configured to adjust a range of a wavelength of the first laser beam received from the first laser light source. The second laser beam, and a second wavelength adjusting member configured to adjust a range of a wavelength of the second laser beam received from the second laser light source.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: January 9, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Jun Keon Ahn, Soo Young Park, Ohyeol Kwon, Jung Hwan Lee, Seungtae Yang
  • Publication number: 20230330768
    Abstract: Disclosed is a method for removing a film from a substrate by irradiating a plurality of unit pulse laser beams to an edge region of the substrate. The method includes a first irradiation operation for irradiating a plurality of unit pulse laser beams onto the substrate while the substrate is rotating, and a second irradiation operation for irradiating a plurality of unit pulse laser beams to regions of the substrate onto which the unit pulse laser beams are not irradiated in the first irradiation operation.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 19, 2023
    Applicant: SEMES CO., LTD.
    Inventors: Soo Young PARK, Ohyeol KWON, Jun Keon AHN, Jung Hwan LEE, Seong Soo LEE
  • Patent number: 11745291
    Abstract: An apparatus includes a support unit supporting a substrate including a film, a laser generation unit that generates a laser beam to process the film, a beam splitter that splits the laser beam into a first laser beam travelling along a first path toward an upper edge of the substrate and a second laser beam travelling along a second path toward a lower edge of the substrate, a first beam shaping unit on the first path shaping the first laser beam, a second beam shaping unit on the second path shaping the second laser beam, a first beam scanning unit downstream of the first beam shaping unit that applies the first laser beam to the upper edge in the manner of scanning, and a second beam scanning unit downstream of the second beam shaping unit that applies the second laser beam to the lower edge in the manner of scanning.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: September 5, 2023
    Assignee: SEMES CO., LTD.
    Inventors: Ohyeol Kwon, Jun Keon Ahn, Byungsun Bang
  • Patent number: 11730993
    Abstract: The present invention relates to an extinguishing composition and comprises an extinguishing material and a capsule containing the extinguishing material, and the extinguishing material comprises calcium bromide (CaBr2).
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: August 22, 2023
    Assignees: LG ENERGY SOLUTION, LTD., KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORP
    Inventors: Yeo Min Yoon, Ji Hyun Choi, Bum Young Jung, Jeong Ho Ha, Ki Jae Kim, Yong Keon Ahn, Kyu Bin Lee, Yustian Suharto
  • Patent number: 11679447
    Abstract: Disclosed is a substrate treating apparatus. The substrate treating apparatus includes a chamber providing a space in which a substrate is treated, a support unit supporting the substrate inside the chamber, a laser unit irradiating laser to an edge region of the substrate, a vision unit capturing the edge region of the substrate to measure an offset value of the substrate, and an adjustment unit adjusting an irradiation location of the laser based on the offset value of the substrate.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: June 20, 2023
    Assignee: SEMES CO., LTD.
    Inventors: Soo Young Park, Ohyeol Kwon, Jun Keon Ahn, Jung Hwan Lee
  • Publication number: 20230083006
    Abstract: There are provided a flame retardant element for suppressing flame propagation when a fire occurs during the use of a lithium secondary battery, thereby ensuring safety of the secondary battery while in use, a method for manufacturing the flame retardant element, and a secondary battery module and a secondary battery pack comprising the flame retardant element. The proposed flame retardant element is a composite pad having a stack of at least two polymer resin single layers including fire extinguishing materials having different fire extinguishing and flame retardant mechanisms, the composite pad includes a first polymer resin single layer and a second polymer resin single layer, and the first polymer resin single layer includes the fire extinguishing material which takes effect in a lower temperature range than the second polymer resin single layer.
    Type: Application
    Filed: January 27, 2021
    Publication date: March 16, 2023
    Applicants: LG Energy Solution, Ltd., Konkuk University Industrial Cooperation Corp
    Inventors: Yeo-Min Yoon, Bum-Young Jung, Jeong-Ho Ha, Ki-Jae Kim, Yong-Keon Ahn, Kyu-Bin Lee
  • Publication number: 20210260426
    Abstract: An extinguishing composition includes an extinguishing material and a capsule containing the extinguishing material. The extinguishing material includes calcium bromide. The extinguishing material may be in a capsule.
    Type: Application
    Filed: December 24, 2019
    Publication date: August 26, 2021
    Applicants: LG CHEM, LTD., KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORP
    Inventors: Yeo Min YOON, Ji Hyun CHOI, Bum Young JUNG, Jeong Ho HA, Ki Jae KIM, Yong Keon AHN, Kyu Bin LEE, Yustian SUHARTO
  • Publication number: 20200395210
    Abstract: The inventive concept provides a method for treating a substrate. The method includes removing a film on the substrate by applying a pulsed laser to the rotating substrate, in which thickness of the film to be removed is measured and pulse energy of the pulsed laser is selected based on the measured thickness of the film.
    Type: Application
    Filed: June 15, 2020
    Publication date: December 17, 2020
    Inventors: Ohyeol KWON, Jun Keon AHN, Soo Young PARK, Jung Hwan LEE
  • Publication number: 20200346304
    Abstract: An apparatus includes a support unit supporting a substrate including a film, a laser generation unit that generates a laser beam to process the film, a beam splitter that splits the laser beam into a first laser beam travelling along a first path toward an upper edge of the substrate and a second laser beam travelling along a second path toward a lower edge of the substrate, a first beam shaping unit on the first path shaping the first laser beam, a second beam shaping unit on the second path shaping the second laser beam, a first beam scanning unit downstream of the first beam shaping unit that applies the first laser beam to the upper edge in the manner of scanning, and a second beam scanning unit downstream of the second beam shaping unit that applies the second laser beam to the lower edge in the manner of scanning.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 5, 2020
    Inventors: Ohyeol KWON, Jun Keon AHN, Byungsun BANG
  • Publication number: 20200346300
    Abstract: Disclosed is a method for removing a film from a substrate by irradiating a plurality of unit pulse laser beams to an edge region of the substrate. The method includes a first irradiation operation for irradiating a plurality of unit pulse laser beams onto the substrate while the substrate is rotating, and a second irradiation operation for irradiating a plurality of unit pulse laser beams to regions of the substrate onto which the unit pulse laser beams are not irradiated in the first irradiation operation.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 5, 2020
    Applicant: SEMES CO., LTD.
    Inventors: Soo Young PARK, Ohyeol KWON, Jun Keon AHN, Jung Hwan LEE, Seong Soo LEE
  • Publication number: 20200350156
    Abstract: A method for treating a substrate includes a first treating operation for treating an edge region of the substrate by irradiating a first laser beam having a first wavelength to the edge region of a rotating substrate, and a second treating operation for treating the edge region by irradiating a second laser beam of a second wavelength to the edge region of the rotating substrate, wherein the first wavelength and the second wavelength are different from each other.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 5, 2020
    Applicant: SEMES CO., LTD.
    Inventors: Jun Keon AHN, Soo Young PARK, Ohyeol KWON, Jung Hwan LEE, Seungtae YANG
  • Publication number: 20200346299
    Abstract: Disclosed is a substrate treating apparatus. The substrate treating apparatus includes a chamber providing a space in which a substrate is treated, a support unit supporting the substrate inside the chamber, a laser unit irradiating laser to an edge region of the substrate, a vision unit capturing the edge region of the substrate to measure an offset value of the substrate, and an adjustment unit adjusting an irradiation location of the laser based on the offset value of the substrate.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 5, 2020
    Inventors: Soo Young PARK, Ohyeol KWON, Jun Keon AHN, Jung Hwan LEE
  • Publication number: 20070116844
    Abstract: Disclosed are a method of preparing rice flour having good rheological and sensory characteristics, rice flour prepared by the method, and instant rice soup including the rice flour. Specifically, there are provided a method of preparing rice flour, which has better Theological characteristics, higher material stability through killing of microorganisms during its processing, and much better taste by removal of characteristic odor of rice flour, compared to conventional rice flours or rice flours prepared by other processing methods, and also instant rice soup using the rice flour thus prepared. The rice flour of this invention may be cooked within a short time of 1 min or less through only the addition of warm water (70˜80° C.), and has no unpleasant taste and no characteristic odor occurring from conventional rice flour, thus exhibiting good sensory characteristics for instant foods.
    Type: Application
    Filed: August 29, 2006
    Publication date: May 24, 2007
    Applicant: CJ Corp.
    Inventors: Hyun-Jun Park, Tea-Keon Ahn
  • Publication number: 20070063130
    Abstract: There are provided an optical pointing device and a personal portable device employing the same, the optical pointing device in which a horizontal optical path is formed, thereby minimizing the thickness of an optical system and providing a sufficient depth of a focus. The optical pointing device includes a cover glass directly contacting an object, a light source unit emitting light to the cover glass, and a light receiving unit reflecting the light reflected by the object in a predetermined direction via the cover glass and condensing the light in the predetermined direction, and picking up an image of the light. According to the present invention, pointing is possible by using the surface of a finger and a horizontal optical path is formed such that the thickness of an optical system is minimized, and a sufficient depth of a focus is provided, thereby keeping a beautiful exterior of an ultra slim personal portable device and performing convenient pointing.
    Type: Application
    Filed: June 10, 2005
    Publication date: March 22, 2007
    Inventors: Keon Ahn, Chul Park, Jae Kim, Jae Bae