Patents by Inventor Yong Jun Choi

Yong Jun 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: 11389970
    Abstract: Provided is a tool adapter mounted on a handle of a tool to be gripped by a robot hand, the tool adapter including: a fixing part including an opening in which the handle of the tool is inserted to be fixed to the fixing part; a grip part including contact surfaces which are installed on left and right sides of the fixing part to be gripped by the robot hand, and configured such that as at least one of the contact surfaces moves in accordance with a gripping force from the robot hand, a distance between the contact surfaces changes; and a power transmission structure connected to the grip part and configured to convert a movement of the at least one of the contact surfaces into a movement of pressing a switch installed at the handle of the tool.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 19, 2022
    Assignees: HANWHA DEFENSE CO., LTD., KYEONG IN TECH
    Inventors: Seon Yong Chang, Sung Gyu Kim, Sang Min Kim, Yong Jun Choi
  • Patent number: 11302455
    Abstract: A method for removing iodine by using Deinococcus radiodurans having a gold nanoparticle synthesis ability is disclosed. More particularly, a method for removing radioactive iodine by adsorbing radioactive iodine onto gold nanoparticles synthesized in cells of Deinococcus radiodurans is disclosed. A recombinant microorganism having an enhanced radioactive iodine removal ability according to the present invention may selectively remove radioactive iodine present in various types of solutions at a high efficiency of 99% or higher, and thus may be very effective in removing radioactive iodine generated in large-scale hospitals, industries, nuclear facility accidents, and the like.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: April 12, 2022
    Assignee: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATIO
    Inventor: Yong Jun Choi
  • Publication number: 20210343552
    Abstract: A dry cleaning apparatus includes a chamber, a substrate support supporting a substrate within the chamber, a shower head arranged in an upper portion of the chamber to supply a dry cleaning gas toward the substrate, the shower head including an optical window transmitting a laser light therethrough toward the substrate support, a plasma generator generating plasma from the dry cleaning gas, and a laser irradiator irradiating the laser light on the substrate through the optical window and the plasma to heat the substrate.
    Type: Application
    Filed: July 15, 2021
    Publication date: November 4, 2021
    Inventors: Seung-Min SHIN, Seok-Hoon KIM, Young-Hoo KIM, In-Gi KIM, Tae-Hong KIM, Sung-Hyun PARK, Jin-Woo LEE, Ji-Hoon CHA, Yong-Jun CHOI
  • Patent number: 11142777
    Abstract: The present invention relates to a method for preparing a mutant strain having high producibility of phytoene and a mutant strain prepared thereby. More particularly, a Deinococcus radiodurans mutant strain, prepared by the method of the present invention, having high producibility of phytoene, does not retain an artificial antibiotic-resistant gene, although constructed by introducing a metabolism engineering method, and has high producibility of phytoene. Thus, the mutant strain prepared according to the method can find useful applications in the mass production of phytoene.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: October 12, 2021
    Assignee: University of Seoul Industry Cooperation Foundation
    Inventors: Yong Jun Choi, Sun Wook Jeong, Jua Kim, Eunkyung Hong, Kwang Jin Cho
  • Patent number: 11087996
    Abstract: A dry cleaning apparatus includes a chamber, a substrate support supporting a substrate within the chamber, a shower head arranged in an upper portion of the chamber to supply a dry cleaning gas toward the substrate, the shower head including an optical window transmitting a laser light therethrough toward the substrate support, a plasma generator generating plasma from the dry cleaning gas, and a laser irradiator irradiating the laser light on the substrate through the optical window and the plasma to heat the substrate.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: August 10, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Min Shin, Seok-Hoon Kim, Young-Hoo Kim, In-Gi Kim, Tae-Hong Kim, Sung-Hyun Park, Jin-Woo Lee, Ji-Hoon Cha, Yong-Jun Choi
  • Publication number: 20210138664
    Abstract: Provided is a tool adapter mounted on a handle of a tool to be gripped by a robot hand, the tool adapter including: a fixing part including an opening in which the handle of the tool is inserted to be fixed to the fixing part; a grip part including contact surfaces which are installed on left and right sides of the fixing part to be gripped by the robot hand, and configured such that as at least one of the contact surfaces moves in accordance with a gripping force from the robot hand, a distance between the contact surfaces changes; and a power transmission structure connected to the grip part and configured to convert a movement of the at least one of the contact surfaces into a movement of pressing a switch installed at the handle of the tool.
    Type: Application
    Filed: July 31, 2018
    Publication date: May 13, 2021
    Applicants: HANWHA DEFENSE CO., LTD., KYEONG IN TECH
    Inventors: Seon Yong CHANG, Sung Gyu KIM, Sang Min KIM, Yong Jun CHOI
  • Publication number: 20210090248
    Abstract: Provided is a method of diagnosing cervical cancer using an artificial intelligence-based medical image analysis, which is performed by a computer, the method including obtaining an image of cervical cells of an object; pre-processing the image; identifying one or more cells in the pre-processed image; determining whether the identified one or more cells are normal; and diagnosing whether the object has cervical cancer on the basis of a result of determining whether the identified one or more cells are normal.
    Type: Application
    Filed: December 23, 2019
    Publication date: March 25, 2021
    Applicant: DoAI Inc.
    Inventors: Yong Jun CHOI, Hyun Gyu LEE, Bo Gyu PARK, Han Lim MOON
  • Publication number: 20210060625
    Abstract: A wafer cleaning apparatus is provided. The wafer cleaning apparatus includes comprising a chamber configured to be loaded with a wafer, a nozzle on the wafer and configured to provide liquid chemicals on an upper surface of the wafer, a housing under the wafer, a laser module configured to irradiate laser on the wafer, a transparent window disposed between the wafer and the laser module, and a controller configured to control on/off of the laser module, wherein the controller is configured to control repetition of turning the laser module on and off, and retain temperature of the wafer within a temperature range, and a ratio of time when the laser module is on in one cycle including on/off of the laser module is 30% to 50%.
    Type: Application
    Filed: June 2, 2020
    Publication date: March 4, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seung Min SHIN, Hun Jae JANG, Seok Hoon KIM, Young-Hoo KIM, In Gi KIM, Tae-Hong KIM, Kun Tack LEE, Ji Hoon CHA, Yong Jun CHOI
  • Patent number: 10844767
    Abstract: The present disclosure relates to a device and a method for removing a carbon from an oxygen sensor. The device may include an oxygen sensor installed in a gas exhaust line of a vehicle to measure an oxygen content in an exhaust gas, a valve for transferring a high-pressure air flow to the oxygen sensor, a valve actuator for driving the valve, and a controller for controlling the valve actuator to open the valve when an abnormality occurs in the oxygen sensor. When the abnormality has occurred in the oxygen sensor, the valve for transferring the high-pressure air flow is opened, and a temperature of zirconia provided in the oxygen sensor is raised to remove a carbon deposited on the oxygen sensor.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: November 24, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yong Jun Choi, Sung Jong Oh, Sung Moon Cho, Yun Sik Jang
  • Publication number: 20200343113
    Abstract: A multi-chamber apparatus for processing a wafer, the apparatus including a high etch rate chamber to receive the wafer and to etch silicon nitride with a phosphoric acid solution; a rinse chamber to receive the wafer and to clean the wafer with an ammonia mixed solution; and a supercritical drying chamber to dry the wafer with a supercritical fluid.
    Type: Application
    Filed: November 21, 2019
    Publication date: October 29, 2020
    Inventors: Yong Jun CHOI, Seok Hoon KIM, Young-Hoo KIM, In Gi KIM, Sung Hyun PARK, Seung Min SHIN, Kun Tack LEE, Jinwoo LEE, Hun Jae JANG, Ji Hoon CHA
  • Publication number: 20200335361
    Abstract: A wafer cleaning equipment includes a housing to be positioned adjacent to a wafer, a hollow region in the housing, a laser module that outputs a laser beam having a profile of the laser beam includes a first region having a first intensity and a second region having a second intensity greater than the first intensity, the laser beam being output into the hollow region, and a transparent window that covers an upper part of the hollow region and transmits the laser beam to be incident on an entirety of a lower surface of the wafer.
    Type: Application
    Filed: November 22, 2019
    Publication date: October 22, 2020
    Inventors: Hun Jae JANG, Seung Min Shin, Seok Hoon Kim, In Gi Kim, Tae-Hong Kim, Kun Tack Lee, Jinwoo Lee, Ji Hoon Cha, Yong Jun Choi
  • Patent number: 10766794
    Abstract: A resource recovery method includes: feeding raw water to a first-stage raw water tank; supplying high-temperature vapor to a first-stage heat exchanger; performing heat exchange between the supplied high-temperature vapor and the raw water in the first-stage raw water tank, changing a portion of the water into vapor and supplying the changed vapor to a subsequent-stage heat exchanger; repeatedly performing the performing step for each of the raw water tanks sequentially in the order from a second state to a n-th stage; being feed to a crystallizer from the n-th stage raw water tank; detecting a turbidity of the raw water fed to the crystallizer from the n-th-stage raw water tank; and extracting crystals of valuable resources contained in the raw water fed to the crystallizer from the n-th-stage raw water tank when the turbidity of the raw water becomes a predetermined value.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 8, 2020
    Assignee: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Sang-Ho Lee, Jin-Sik Sohn, Yong-Jun Choi, Ji-Hyeok Choi, Yong-Hyun Shin
  • Patent number: 10766475
    Abstract: A device for preventing dilution of engine oil includes an oil pan in which oil for lubrication of the engine is recovered with fuel. An exhaust purifier is provided on a rear end of the engine and purifying exhaust gas. A gas passage can guide flow of exhaust gas passing through the exhaust purifier to the oil pan. A gas valve can control flow rate of the exhaust gas flowing in the gas passage. A controller controls an opening ratio of the gas valve depending on a temperature of oil inside the oil pan to maintain the temperature of the oil equal to or higher than a temperature at which the fuel in the oil pan is vaporized.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: September 8, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Jong Oh, Sung Moon Cho, Yong Jun Choi, Yun Sik Jang
  • Publication number: 20200254391
    Abstract: A method of predicting membrane fouling in a reverse osmosis process includes collecting information relative to the reverse osmosis process being performed over a predetermined period of time, the collected information including a process factor and a water quality factor, the process factor including a produced water flow rate; calculating a salt removal rate and a pressure drop based on the collected information; normalizing the produced water flow rate, the salt removal rate, and the pressure drop; generating a prediction equation using normalized values of the produced water flow rate, the salt removal rate, and the pressure drop values; and predicting membrane fouling through the generated prediction equation to determine a chemical cleaning time. Process and water quality factors are normalized to temperature and/or flow rate, and the prediction equation uses the normalized factors. Both short-term and long-term predictions are made for chemical cleaning time and membrane module replacement time.
    Type: Application
    Filed: December 12, 2019
    Publication date: August 13, 2020
    Inventors: Young Geun LEE, Kwang Hee SHIN, Sang Ho LEE, Yong Jun CHOI
  • Publication number: 20200251358
    Abstract: An apparatus is provided. The apparatus includes a spinner configured to hold a wafer, a nozzle configured to supply a liquid chemical onto an upper surface of the wafer, and a laser module configured to heat the wafer by radiating a laser beam to a lower surface of the wafer while the nozzle supplies the liquid chemical onto the upper surface of the wafer.
    Type: Application
    Filed: November 14, 2019
    Publication date: August 6, 2020
    Inventors: Ji Hoon CHA, Jinwoo LEE, Seok Hoon KIM, In Gi KIM, Seung Min SHIN, Yong Jun CHOI
  • Publication number: 20200164851
    Abstract: A device for preventing dilution of engine oil includes an oil pan in which oil for lubrication of the engine is recovered with fuel. An exhaust purifier is provided on a rear end of the engine and purifying exhaust gas. A gas passage can guide flow of exhaust gas passing through the exhaust purifier to the oil pan. A gas valve can control flow rate of the exhaust gas flowing in the gas passage. A controller controls an opening ratio of the gas valve depending on a temperature of oil inside the oil pan to maintain the temperature of the oil equal to or higher than a temperature at which the fuel in the oil pan is vaporized.
    Type: Application
    Filed: May 2, 2019
    Publication date: May 28, 2020
    Inventors: Sung Jong Oh, Sung Moon Cho, Yong Jun Choi, Yun Sik Jang
  • Publication number: 20200149457
    Abstract: The present disclosure relates to a device and a method for removing a carbon from an oxygen sensor. The device may include an oxygen sensor installed in a gas exhaust line of a vehicle to measure an oxygen content in an exhaust gas, a valve for transferring a high-pressure air flow to the oxygen sensor, a valve actuator for driving the valve, and a controller for controlling the valve actuator to open the valve when an abnormality occurs in the oxygen sensor. When the abnormality has occurred in the oxygen sensor, the valve for transferring the high-pressure air flow is opened, and a temperature of zirconia provided in the oxygen sensor is raised to remove a carbon deposited on the oxygen sensor.
    Type: Application
    Filed: May 1, 2019
    Publication date: May 14, 2020
    Inventors: Yong Jun Choi, Sung Jong Oh, Sung Moon Cho, Yun Sik Jang
  • Publication number: 20200102579
    Abstract: The present invention relates to a method for preparing a mutant strain having high producibility of phytoene and a mutant strain prepared thereby. More particularly, a Deinococcus radiodurans mutant strain, prepared by the method of the present invention, having high producibility of phytoene, does not retain an artificial antibiotic-resistant gene, although constructed by introducing a metabolism engineering method, and has high producibility of phytoene. Thus, the mutant strain prepared according to the method can find useful applications in the mass production of phytoene.
    Type: Application
    Filed: March 29, 2018
    Publication date: April 2, 2020
    Applicant: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
    Inventors: Yong Jun Choi, Sun Wook Jeong, Jua Kim, Eunkyung Hong, Kwang Jin Cho
  • Publication number: 20200083063
    Abstract: A dry cleaning apparatus includes a chamber, a substrate support supporting a substrate within the chamber, a shower head arranged in an upper portion of the chamber to supply a dry cleaning gas toward the substrate, the shower head including an optical window transmitting a laser light therethrough toward the substrate support, a plasma generator generating plasma from the dry cleaning gas, and a laser irradiator irradiating the laser light on the substrate through the optical window and the plasma to heat the substrate.
    Type: Application
    Filed: April 1, 2019
    Publication date: March 12, 2020
    Inventors: Seung-Min SHIN, Seok-Hoon KIM, Young-Hoo KIM, In-Gi KIM, Tae-Hong KIM, Sung-Hyun PARK, Jin-Woo LEE, Ji-Hoon CHA, Yong-Jun CHOI
  • Publication number: 20200075359
    Abstract: A wet etching apparatus includes a process bath having an internal space configured to receive an etchant and having a support unit, on which a wafer is disposed to be in contact with the etchant. A laser unit is disposed above the process bath and is configured to direct a laser beam to the wafer and to heat the wafer thereby. An etchant supply unit is configured to supply the etchant to the internal space of the process bath.
    Type: Application
    Filed: April 5, 2019
    Publication date: March 5, 2020
    Inventors: JIN WOO LEE, Yong Jun Choi, Seok Hoon Kim, Seung Min Shin, Ji Hoon Cha