Patents by Inventor Jin-Woo Ahn

Jin-Woo 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).

  • Publication number: 20250051662
    Abstract: A method for refining waste plastic pyrolysis oil is provided, including: applying a voltage to a first mixed solution obtained by mixing waste plastic pyrolysis oil, washing water, and a demulsifier to dehydrate the first mixed solution to form a dehydrated first mixed solution; and hydrotreating a second mixed solution obtained by mixing the dehydrated first mixed solution dehydrated and a sulfur source to produce refined oil from which impurities have been removed, and a device related thereto. The method and device may prevent or minimize formation of an ammonium salt (NH4Cl) and/or prevent adhesion of impurity particles in a refining process of waste plastic pyrolysis oil containing impurities such as chlorine and nitrogen, and provides waste plastic pyrolysis oil having low content of impurities and olefins and excellent quality, and thus, may be used as a feedstock for blending with existing petroleum products or oil refining and petrochemical processes.
    Type: Application
    Filed: February 14, 2024
    Publication date: February 13, 2025
    Inventors: Yong Woon Kim, Kyong Sik Park, Min Woo Shin, Jin Seong Jang, Dong Keun Kim, Joo Won Park, Un Cheol Baek, Byung Kook Ahn
  • Publication number: 20240407689
    Abstract: The present invention relates to a device for collecting a physiological signal, posture information, and the like of a rotorcraft pilot by comprehensively utilizing cameras, on-body wearable devices, control stick pressure detection sensors, and the like while the rotorcraft pilot is in flight to track a state of consciousness of the rotorcraft pilot in real time and transmitting the collected biometric information to an integrated data processing and storage device with a built-in flight data recorder.
    Type: Application
    Filed: March 14, 2024
    Publication date: December 12, 2024
    Inventors: Jin Woo AHN, Seong Hyeon NA, Jeong Mo KOO, Wonae SON
  • Publication number: 20240407708
    Abstract: In a posture balance measurement system using a safe device for a subject and a posture balance measurement method using the system, the system includes a plate, a pressure measurement unit, a harness, a balance measurement unit, a controller and an evaluation part. On the plate, a subject is located with standing upright. The pressure measurement unit is disposed on the plate, and is configured to measure a plantar pressure of the subject. The harness is configured to fix and support a body of the subject. The balance measurement unit is disposed at the harness, and is configured to measure a balance information of the subject. The controller is configured to control the pressure measurement unit and the balance measurement unit according to a test performance. The evaluation part is configured to diagnose a posture balance of the subject.
    Type: Application
    Filed: February 28, 2022
    Publication date: December 12, 2024
    Applicant: OSONG MEDICAL INNOVATION FOUNDATION
    Inventors: Young Jin KIM, Seung Pyo KIM, Dong Jun MOON, Ha Chul JUNG, Jin Woo AHN, Shin Il KANG
  • Patent number: 12147550
    Abstract: A steganography method and an apparatus embedding a hidden message in a video stream of an original cover video to produce a stego video using a generative neural network. The original cover video is a video stream as opposed using an image. A discriminant neural network is used to correct a generated video compared to an original cover video. The generated neural network is trained when the generated video is determined to be real by the discriminant neural network. A second stego video is acquired by adversarial training through a mutually adversarial relationship between a generative neural network and an discriminant neural network. The embedding technique is one of pre-embedding, intra-embedding, or post-embedding.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: November 19, 2024
    Assignee: Defense Agency for Technology and Quality
    Inventors: Jin Woo Ahn, Sang Woo Noh, Tae Hwan Kim
  • Patent number: 12143698
    Abstract: A method creating a high-speed hyperspectral video by acquiring images from a hyperspectral high speed camera and forming a of a three-dimensional data cube by including spectra for each pixel in addition to a two-dimensional spatial information of an image taken with a general camera. Dividing successive three-dimensional data cubes obtained by photographing images with a spectral scanning type hyperspectral camera. Acquiring the three-dimensional data cubes for each specific time point and creating three-dimensional data cubes for as many as the number of spectra. Then separating a region corresponding to a moving object and a region corresponding to a background from the created data cubes. Acquiring spectral values according to spatial locations of the images and reconstructing a three-dimensional data cube with all spectral values for each specific time point with regard to the region with motion through a generative adversarial network algorithm.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: November 12, 2024
    Assignee: Defense Agency for Technology and Quality
    Inventors: Sang Woo Noh, Tae Hwan Kim, Jin Woo Ahn, Han Gyu Kim
  • Patent number: 12096132
    Abstract: The present invention relates to a method of acquiring image data by attaching a color wheel filter and a motor to electro-optical equipment equipped with a Bayer pattern-based CCD, and then improving a frame rate of the electro-optical equipment by 3 times without resolution loss through post-processing using a color channel extrapolation algorithm.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: September 17, 2024
    Assignee: Defense Agency for Technology and Quality
    Inventors: Sang Woo Noh, Tae Hwan Kim, Jin Woo Ahn
  • Publication number: 20240280435
    Abstract: Provided is an optical measurement apparatus. The optical measurement apparatus includes a light source; an objective lens; a reflector configured to change an optical path of light emitted from the light source such that the light is directed toward the objective lens; a detector configured to detect a pupil image; a first adjuster configured to rotate the light source around the reflector; and a second adjuster configured to rotate the reflector.
    Type: Application
    Filed: January 2, 2024
    Publication date: August 22, 2024
    Inventors: Seung Ryeol LEE, Ye Eun PARK, Jin Woo AHN, Seung Woo LEE, Tae Joong KIM, Myung Jun LEE
  • Patent number: 11983843
    Abstract: The present application relates to a method for synthesizing image and an image synthesizing apparatus using the same. The image synthesizing method of the present application and the image synthesizing apparatus using the same can reduce the time required for learning by reducing the distortion phenomenon of the algorithm and reducing the amount of calculation required for image synthesis. In addition, the image synthesizing method of the present application and the image synthesizing apparatus using the same can be utilized in various fields such as national defense, IT, and entertainment based on characteristics such as excellent performance and learning time reduction of deep learning algorithms, and can be utilized in psychological warfare or induction of command system confusion.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: May 14, 2024
    Assignee: Defense Agency for Technology and Quality
    Inventors: Sang Woo Noh, Tae Hwan Kim, Jin Woo Ahn, Han Gyu Kim
  • Publication number: 20240050098
    Abstract: In a non-contact pressure measurement system of a balloon catheter and a non-contact pressure measurement method of the balloon catheter using the same, the system includes a chamber part, a balloon, a tube part, a pump part and a displacement sensor. The chamber part stores a saline solution. The balloon is disposed inside of a body and is configured to be expanded with supply of the saline solution. The tube part is configured to connect the chamber part with the balloon. The pump part is configured to control the supply of the saline solution via the tube part. The displacement sensor is configured to measure an amount of the expansion of the tube part expanded with the supply of the saline solution, in a predetermined section of the tube part.
    Type: Application
    Filed: November 1, 2021
    Publication date: February 15, 2024
    Applicants: OSONG MEDICAL INNOVATION FOUNDATION, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kang Moo LEE, Eun Ju YOO, Min Chul SONG, Chang Jun CHOI, Jin Woo AHN, Geum Joon CHO
  • Publication number: 20240006970
    Abstract: The present disclosure relates to a double air gap surface permanent magnet synchronous motor with two controllers, and particularly, to a double air gap surface permanent magnet synchronous motor with two controllers, which doubles structures of a rotor and a stator to improve torque performance and has high efficiency and a high power density that satisfy an international efficiency class IE5 of International Electro-technical Commission (IEC) and solves failures by including individual controllers.
    Type: Application
    Filed: January 20, 2021
    Publication date: January 4, 2024
    Inventors: Jin-woo AHN, Kwang-il JEONG, Do-hyun KANG
  • Publication number: 20230421007
    Abstract: The present disclosure relates to a double air gap surface permanent magnet synchronous motor with non-magnetic solid, and particularly, to a double air gap surface permanent magnet synchronous motor with non-magnetic solid, which doubles structures of a rotor and a stator to improve torque performance and has high efficiency and a high power density that satisfy an international efficiency class IE5 of International Electro-technical Commission (IEC) and includes a non-magnetic solid that blocks magnetic fluxes from two permanent magnets so as not to offset mutually.
    Type: Application
    Filed: January 20, 2021
    Publication date: December 28, 2023
    Inventors: Jin-woo AHN, Kwang-il JEONG, Do-hyun KANG
  • Publication number: 20230384817
    Abstract: The present application relates to a control stick for a military aircraft, a system for managing health information regarding a pilot, a military aircraft, and a simulator for a military aircraft. According to the control stick for a military aircraft, the system for managing health information regarding a pilot, the military aircraft, the military aircraft, and the simulator for a military aircraft of the present application, health information regarding a pilot may be continuously monitored, and flight accidents such as personal damage and material damage may be prevented via the collection of the health information.
    Type: Application
    Filed: October 13, 2020
    Publication date: November 30, 2023
    Applicant: Defense Agency for Technology and Quality
    Inventors: Tae Hwan KIM, Sang Woo NOH, Jin Woo AHN
  • Publication number: 20230066458
    Abstract: The present application relates to a steganography method and a steganography apparatus using the same. According to the steganography method of the present application and the steganography apparatus using the same, they can simplify a data refinement process compared to the supervised learning method as AI learns a large amount of data related to steganography encoding and decoding by itself, can generate a high-quality stego video close to the cover video to improve the imperceptibility of hidden information as the generator and discriminator conduct mutual learning, can hide the message in the images and/or sounds according to the learning method to secure a high-capacity cache, and can secure robustness against third-party detection, monitoring, and removal attacks when learning the detection and avoidance methods of physical and technical detection systems (monitoring equipment, wiretapping equipment and security equipment, etc.).
    Type: Application
    Filed: August 29, 2022
    Publication date: March 2, 2023
    Applicant: Defense Agency for Technology and Quality
    Inventors: Jin Woo AHN, Sang Woo NOH, Tae Hwan KIM
  • Publication number: 20230040654
    Abstract: The present invention provides a method for manufacturing a polishing pad, the method comprising: a step for manufacturing a non-woven pad; a polyurethane impregnation step for impregnating the non-woven pad with polyurethane; and a surface polishing step for polishing the surface of the non-woven pad impregnated with polyurethane, wherein the polyurethane impregnation step and the surface polishing step are performed such that the density ratio between the surface layer and the inside of the polishing pad is uniform.
    Type: Application
    Filed: May 8, 2020
    Publication date: February 9, 2023
    Inventors: Jin Woo AHN, Soo Cheon JANG
  • Patent number: 11534889
    Abstract: The present invention provides a polishing pad for a wafer polishing apparatus, comprising: an upper pad having a front surface part, which has a cut surface and is in contact with a wafer, a rear surface part positioned on the lower part of the front surface part, and a plurality of grid grooves passing through the front surface part and the rear surface part; a lower pad, which is arranged on the lower part of the upper pad and can be attached to a surface plate; and an adhesion part positioned between the upper pad and the lower pad to couple the upper pad with the lower pad.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: December 27, 2022
    Assignee: SK SILTRON CO., LTD.
    Inventor: Jin Woo Ahn
  • Publication number: 20220210347
    Abstract: The present invention relates to a method for creating a high-speed hyperspectral video by dividing successive three-dimensional data cubes obtained by photographing images with a spectral scanning type hyperspectral camera so as to be capable of having a temporal resolution within the number of spectra.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 30, 2022
    Applicant: Defense Agency for Technology and Quality
    Inventors: Sang Woo Noh, Tae Hwan Kim, Jin Woo Ahn, Han Gyu Kim
  • Publication number: 20220188972
    Abstract: The present application relates to a method for synthesizing image and an image synthesizing apparatus using the same. The image synthesizing method of the present application and the image synthesizing apparatus using the same can reduce the time required for learning by reducing the distortion phenomenon of the algorithm and reducing the amount of calculation required for image synthesis. In addition, the image synthesizing method of the present application and the image synthesizing apparatus using the same can be utilized in various fields such as national defense, IT, and entertainment based on characteristics such as excellent performance and learning time reduction of deep learning algorithms, and can be utilized in psychological warfare or induction of command system confusion.
    Type: Application
    Filed: December 14, 2021
    Publication date: June 16, 2022
    Applicant: Defense Agency for Technology and Quality
    Inventors: Sang Woo NOH, Tae Hwan KIM, Jin Woo AHN, Han Gyu KIM
  • Publication number: 20220174212
    Abstract: The present invention relates to a method of acquiring image data by attaching a color wheel filter and a motor to electro-optical equipment equipped with a Bayer pattern-based CCD, and then improving a frame rate of the electro-optical equipment by 3 times without resolution loss through post-processing using a color channel extrapolation algorithm.
    Type: Application
    Filed: December 2, 2021
    Publication date: June 2, 2022
    Applicant: Defense Agency for Technology and Quality
    Inventors: Sang Woo NOH, Tae Hwan KIM, Jin Woo AHN
  • Publication number: 20220149284
    Abstract: In a method for manufacturing conductive polymer electrode by using drop casting, a conductive material is dispersed in a solution, to form a first mixing solution. A first polymer is added and dispersed to the first mixing solution, to form a second mixing solution. A second polymer solution is added and dispersed to the second mixing solution, to form a third mixing solution. The third mixing solution is dropped on a hot plate using a pipette and a solution of the third mixing solution is evaporated, to form a conductive polymer. The adhesive patch is formed. The adhesive patch is attached to the conductive polymer.
    Type: Application
    Filed: April 3, 2019
    Publication date: May 12, 2022
    Applicant: OSONG MEDICAL INNOVATION FOUNDATION
    Inventors: Ha Chul JUNG, Da Hye KWON, Jin Hee MOON, Young Jin KIM, Jin Woo AHN, Won Jung CHOI, Seung A LEE, A Hee KIM, Ha Na PARK
  • Publication number: 20220000369
    Abstract: A core body temperature measurement device includes a body and an operation unit. The body is fixed to an ear canal of user. The operation unit is combined with a front side of the body, and is configured to be exposed to the ear canal or to be concealed inside, and has a sensor part. the sensor part measures a core body temperature of user when the operation unit is exposed to the ear canal.
    Type: Application
    Filed: November 27, 2018
    Publication date: January 6, 2022
    Applicant: OSONG MEDICAL INNOVATION FOUNDATION
    Inventors: Jin Woo AHN, Young Hoon ROH, Ha Chul JUNG, Young Jin KIM, Kang Moo LEE, Seung A LEE, Da Hye KWON, Ha Na PARK, A Hee KIM, Song Woo YOON, Won Jung CHOI