Patents by Inventor Oh-Jin Kwon

Oh-Jin Kwon 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: 11915336
    Abstract: The present disclosure provides a method of embedding a watermark on a Joint Photographic Experts Group (JPEG) image. The method includes: performing an entropy decoding on the JPEG image to generate quantized discrete cosine transform (DCT) coefficients; determining target bits in a bit plane of the quantized DCT coefficients on the basis of a watermark-embedding table (WET); and embedding a watermark based on metadata of the JPEG image in the target bits. Also, the present disclosure provides a method of verifying integrity of the image by using the embedded watermark.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: February 27, 2024
    Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
    Inventor: Oh Jin Kwon
  • Patent number: 11897005
    Abstract: The inventive concept provides a nozzle for dispensing a treatment liquid in which plasma is generated. The nozzle includes a body having an interior space, a liquid supply unit that supplies the treatment liquid into the interior space, and electrodes that generate the plasma in the interior space. The liquid supply unit supplies the treatment liquid in a bubbling state into the interior space, or causes the treatment liquid to bubble in the interior space.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: February 13, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Sunmi Kim, Oh Jin Kwon, Sehyeong Choi
  • Publication number: 20230298915
    Abstract: The inventive concept provides an apparatus and method for removing a film formed on a substrate. A method for treating the substrate includes a primary solvent dispensing step of dispensing an organic solvent onto the substrate to remove a photoresist film on the substrate and an ozone dispensing step of dispensing a liquid containing ozone onto the substrate to remove organic residue on the substrate, after the primary solvent dispensing step.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Inventors: Sun Mi KIM, Jisu HONG, Moonsik CHOI, Oh Jin KWON
  • Patent number: 11735437
    Abstract: Provided are an apparatus and method for treating a substrate. Specifically, provided are an apparatus and method for treating a substrate through a supercritical process. The apparatus includes: a housing providing a space for performing a process; a support member disposed in the housing to support a substrate; a supply port configured to supply a process fluid to the housing; a shield member disposed between the supply port and the support member to prevent the process fluid from being directly injected to the substrate; and an exhaust port configured to discharge the process fluid from the housing.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: August 22, 2023
    Assignee: SEMES CO., LTD.
    Inventors: Boong Kim, Oh Jin Kwon, Sungho Jang, Joo Jib Park
  • Patent number: 11705350
    Abstract: The inventive concept provides an apparatus and method for removing a film formed on a substrate. A method for treating the substrate includes a primary solvent dispensing step of dispensing an organic solvent onto the substrate to remove a photoresist film on the substrate and an ozone dispensing step of dispensing a liquid containing ozone onto the substrate to remove organic residue on the substrate, after the primary solvent dispensing step.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: July 18, 2023
    Assignee: SEMES CO., LTD.
    Inventors: Sun Mi Kim, Jisu Hong, Moonsik Choi, Oh Jin Kwon
  • Publication number: 20230074783
    Abstract: The inventive concept provides a nozzle for dispensing a treatment liquid in which plasma is generated. The nozzle includes a body having an interior space, a liquid supply unit that supplies the treatment liquid into the interior space, and electrodes that generate the plasma in the interior space. The liquid supply unit supplies the treatment liquid in a bubbling state into the interior space, or causes the treatment liquid to bubble in the interior space.
    Type: Application
    Filed: November 15, 2022
    Publication date: March 9, 2023
    Applicant: SEMES CO., LTD.
    Inventors: Sunmi KIM, Oh Jin KWON, Sehyeong CHOI
  • Patent number: 11529655
    Abstract: The inventive concept provides a nozzle for dispensing a treatment liquid in which plasma is generated. The nozzle includes a body having an interior space, a liquid supply unit that supplies the treatment liquid into the interior space, and electrodes that generate the plasma in the interior space. The liquid supply unit supplies the treatment liquid in a bubbling state into the interior space, or causes the treatment liquid to bubble in the interior space.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: December 20, 2022
    Assignee: SEMES CO., LTD.
    Inventors: Sunmi Kim, Oh Jin Kwon, Sehyeong Choi
  • Patent number: 11528491
    Abstract: Disclosed is image encoding/decoding method using color coordinate axis conversion, comprising the steps of: acquiring pixel distribution information, on first color coordinate system, about an image; determining, on the basis of the pixel distribution information, first component having the widest variance from among the components of the first color coordinate system; acquiring an intermediate color coordinate system by rotating, around a starting point, a coordinate axes of the first color coordinate system so that variance of the first component is maximized; determining a second component having the widest variance from among components excluding the first component in the intermediate color coordinate system; acquiring a second color coordinate system by rotating, around the starting point, a coordinate axis of the intermediate color coordinate system so that variance of the second color component is maximized; and encoding the image on the basis of pixel distribution information on the second color coo
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: December 13, 2022
    Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
    Inventor: Oh Jin Kwon
  • Patent number: 11520245
    Abstract: A substrate processing apparatus and method for effectively removing an organic material such as a photoresist without using sulfuric acid are provided. The substrate processing apparatus includes a support module, in which a substrate is inverted and seated, and an ultraviolet light source is installed, wherein the substrate is arranged so that one surface of the substrate faces the support module, and the ultraviolet light source irradiates ultraviolet rays to one surface of the substrate; a nozzle installed in the support module; and a fluid supply module for supplying a fluid to one surface of the substrate through the nozzle.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: December 6, 2022
    Assignee: Semes Co., Ltd.
    Inventors: Oh Jin Kwon, Ji Su Hong, Sun Mi Kim
  • Publication number: 20220206399
    Abstract: A substrate processing apparatus and method for effectively removing an organic material such as a photoresist without using sulfuric acid are provided. The substrate processing apparatus includes a support module, in which a substrate is inverted and seated, and an ultraviolet light source is installed, wherein the substrate is arranged so that one surface of the substrate faces the support module, and the ultraviolet light source irradiates ultraviolet rays to one surface of the substrate; a nozzle installed in the support module; and a fluid supply module for supplying a fluid to one surface of the substrate through the nozzle.
    Type: Application
    Filed: August 17, 2021
    Publication date: June 30, 2022
    Inventors: Oh Jin Kwon, Ji Su Hong, Sun Mi Kim
  • Publication number: 20220199434
    Abstract: The inventive concept provides a light treating member for performing a light treatment on a substrate. The light treating member comprises a circuit unit comprising a plurality of LED module units connected in series, each LED module unit comprising a plurality of identical LED modules connected with each other in parallel.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 23, 2022
    Applicant: SEMES CO., LTD.
    Inventor: OH JIN KWON
  • Publication number: 20210334931
    Abstract: The present disclosure provides a method of embedding a watermark on a Joint Photographic Experts Group (JPEG) image. The method includes: performing an entropy decoding on the JPEG image to generate quantized discrete cosine transform (DCT) coefficients; determining target bits in a bit plane of the quantized DCT coefficients on the basis of a watermark-embedding table (WET); and embedding a watermark based on metadata of the JPEG image in the target bits. Also, the present disclosure provides a method of verifying integrity of the image by using the embedded watermark.
    Type: Application
    Filed: May 17, 2019
    Publication date: October 28, 2021
    Inventor: Oh Jin Kwon
  • Publication number: 20210321120
    Abstract: Disclosed is image encoding/decoding method using color coordinate axis conversion, comprising the steps of: acquiring pixel distribution information, on first color coordinate system, about an image; determining, on the basis of the pixel distribution information, first component having the widest variance from among the components of the first color coordinate system; acquiring an intermediate color coordinate system by rotating, around a starting point, a coordinate axes of the first color coordinate system so that variance of the first component is maximized; determining a second component having the widest variance from among components excluding the first component in the intermediate color coordinate system; acquiring a second color coordinate system by rotating, around the starting point, a coordinate axis of the intermediate color coordinate system so that variance of the second color component is maximized; and encoding the image on the basis of pixel distribution information on the second color coo
    Type: Application
    Filed: October 23, 2019
    Publication date: October 14, 2021
    Inventor: Oh Jin Kwon
  • Publication number: 20210295564
    Abstract: Disclosed are a progressive image encoding method and a decoding method corresponding thereto. The encoding method comprises the steps of: with respect to an image, acquiring information relating to a central area; selecting an initial block from at least one block included in the central area; determining an encoding path for a plurality of blocks included in the image, according to a center-to-edge sequence from the initial block; and encoding the image on the basis of the encoding path.
    Type: Application
    Filed: February 10, 2020
    Publication date: September 23, 2021
    Inventor: Oh Jin Kwon
  • Patent number: 10991603
    Abstract: A method for treating a substrate includes a mixing step of preparing an ozone treatment fluid containing an ozone gas and a substrate treating step of treating a surface of the substrate using the ozone treatment fluid. In the substrate treating step, light is irradiated to the substrate by a lamp.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: April 27, 2021
    Assignee: SEMES CO., LTD.
    Inventors: Oh Jin Kwon, Chong-Min Ryu, Young Ho Choo
  • Publication number: 20210111042
    Abstract: Provided are an apparatus and method for treating a substrate. Specifically, provided are an apparatus and method for treating a substrate through a supercritical process. The apparatus includes: a housing providing a space for performing a process; a support member disposed in the housing to support a substrate; a supply port configured to supply a process fluid to the housing; a shield member disposed between the supply port and the support member to prevent the process fluid from being directly injected to the substrate; and an exhaust port configured to discharge the process fluid from the housing.
    Type: Application
    Filed: December 23, 2020
    Publication date: April 15, 2021
    Applicant: SEMES CO., LTD.
    Inventors: Boong KIM, Oh Jin KWON, Sungho JANG, Joo Jib PARK
  • Publication number: 20210060622
    Abstract: The inventive concept provides a nozzle for dispensing a treatment liquid in which plasma is generated. The nozzle includes a body having an interior space, a liquid supply unit that supplies the treatment liquid into the interior space, and electrodes that generate the plasma in the interior space. The liquid supply unit supplies the treatment liquid in a bubbling state into the interior space, or causes the treatment liquid to bubble in the interior space.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 4, 2021
    Applicant: SEMES CO., LTD.
    Inventors: Sunmi KIM, Oh Jin KWON, Sehyeong CHOI
  • Patent number: 10863304
    Abstract: A method of determining a location of a mobile terminal location is provided. The method includes respectively receiving, by two antennas, first and second reception signals from the mobile terminal, calculating, by a communication module, a reception strength value (hereinafter referred to as RSSI_1) of the first reception signal and a reception strength value (hereinafter referred to as RSSI_2) of the second reception signal, and determining, by a location determination module, a region where the mobile terminal is located, based on a result obtained by comparing one RSSI of the RSSI_1 and the RSSI_2 with a reference value set based on a decision tree technique and a result obtained by comparing the one RSSI with a detailed reference value set based on a hysteresis technique.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: December 8, 2020
    Assignee: Hyundai Mobis Co., Ltd.
    Inventors: Oh Jin Kwon, Jae Kwon Kim, Byuck Jin Lee
  • Publication number: 20200315518
    Abstract: The present disclosure processes a user's medical data for each year to be input to a machine learning device for predicting dementia, and a data set composed of optimal features is constructed. The optimal features include at least information on the user's disease history, and the user's medical information for each year in the last 7 years or less. Precise prediction and diagnosis of dementia may be made by constructing the optimal features identified through experiments in the user's medical data for each year. Since the experimental results show that the prediction results of observing a disease history of 7 years or less may be the best, rather than observing medical information for a long period of time, the appropriate criteria may be suggested for predicting dementia.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Hong Woo Chun, Hee Chel Kim, Seon Ho Kim, Jung Joon Kim, Byoung Youl Coh, Oh Jin Kwon, Yeong Ho Moon
  • Publication number: 20200185236
    Abstract: The inventive concept provides an apparatus and method for removing a film formed on a substrate. A method for treating the substrate includes a primary solvent dispensing step of dispensing an organic solvent onto the substrate to remove a photoresist film on the substrate and an ozone dispensing step of dispensing a liquid containing ozone onto the substrate to remove organic residue on the substrate, after the primary solvent dispensing step.
    Type: Application
    Filed: December 5, 2019
    Publication date: June 11, 2020
    Inventors: Sun Mi KIM, Jisu HONG, Moonsik CHOI, Oh Jin KWON