Patents by Inventor Jin Hwa Ryu

Jin Hwa Ryu 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: 20240125706
    Abstract: A surface plasmon resonance imaging apparatus is provided. The surface plasmon resonance imaging apparatus includes a light irradiation unit configured to irradiate polarized light onto a metal coating film provided on one surface of a prism, a light modulator configured to spatially pattern-encode light reflected by the metal coating film and the prism, a light detector configured to detect a pattern-encoded light signal, obtained through pattern-encoding by the light modulator, as a spectral signal, a signal processor configured to spatially decode the spectral signal and analyze a decoded spectral signal to generate characteristic data of a sample provided on the metal coating film, and an output unit configured to output the characteristic data of the sample as a two-dimensional (2D) image.
    Type: Application
    Filed: December 29, 2022
    Publication date: April 18, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: SOOCHEOL KIM, JeongKyun KIM, Hyunseok KIM, Jin Hwa RYU, SO YUNG PARK, Hoe-Sung YANG, KANG BOK LEE, Sun-Hwa LIM, Kwang-Soo CHO, Kyu Won HAN, Sang Gi HONG
  • Publication number: 20240077417
    Abstract: The disclosure relates to a non-dispersive infrared (NDIR) gas sensor which detects the concentration of gas with a simple structure and method by manufacturing an optical waveguide with a gas-permeable polymer material instead of a conventional cavity or chamber type. An optical signal travels through the optical waveguide of gas-permeable polymer by total internal reflection, and the gas naturally penetrates the optical waveguide without the use of separate inlet and outlet openings, so that the optical signal and gas particles come into contact with each other within the optical waveguide. Since the optical signal detected by a photodetector at the other end of the optical waveguide after traveling while contacting the gas particles has properties changed according to the concentration of the gas which they have contacted in the optical waveguide, it is possible to measure the concentration of a specific gas from the detected optical signal.
    Type: Application
    Filed: July 11, 2023
    Publication date: March 7, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Hwa RYU, Soocheol KIM, Hyunseok KIM, So Yung PARK, Hoe-Sung YANG, Kang Bok LEE, Kwang-Soo CHO, Kyu Won HAN
  • Publication number: 20220371014
    Abstract: The present invention relates to a biosensor technique in which multiple types of target substances (biomarkers) contained in saliva or the like are allowed to be simultaneously measured or N samples for one target substance (biomarker) are allowed to be simultaneously measured and reliability of sensed results and high sensitivity are secured. A fluidic channel-based planar biosensor chip, in which a plurality of fluidic channels capable of measuring target substances (biomarkers) are embedded in one flat plate sensor chip and the flat plate sensor chip is measured by a light-emitting element (optical source) and a light-receiving element, and a biomarker measuring apparatus using the same are provided.
    Type: Application
    Filed: February 22, 2022
    Publication date: November 24, 2022
    Inventors: Jin Hwa RYU, Han Young YU, Bong Kuk LEE
  • Patent number: 10261064
    Abstract: An optical oil component sensor and a sensing method using the sensor, which can identify similar fuel oil in real time. The optical oil component sensor includes a light source unit, a reference optical waveguide, configured to guide light thereinto, for receiving and outputting light emitted from the light source unit, a sensing optical waveguide, configured to guide light thereinto, for receiving and outputting light emitted from the light source unit, wherein a portion of the sensing optical waveguide is formed to be in contact with test target oil, a light-receiving unit for receiving both a reference light signal, output from the reference optical waveguide, and a test light signal, output from the sensing optical waveguide, and a control unit for identifying components of the test target oil by comparing optical properties of the reference light signal and the test light signal with each other.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: April 16, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin-Hwa Ryu, Chan-Mo Kang, Lee-Mi Do, Kyu-Ha Baek
  • Publication number: 20170030883
    Abstract: An optical oil component sensor and a sensing method using the sensor, which can identify similar fuel oil in real time. The optical oil component sensor includes a light source unit, a reference optical waveguide, configured to guide light thereinto, for receiving and outputting light emitted from the light source unit, a sensing optical waveguide, configured to guide light thereinto, for receiving and outputting light emitted from the light source unit, wherein a portion of the sensing optical waveguide is formed to be in contact with test target oil, a light-receiving unit for receiving both a reference light signal, output from the reference optical waveguide, and a test light signal, output from the sensing optical waveguide, and a control unit for identifying components of the test target oil by comparing optical properties of the reference light signal and the test light signal with each other.
    Type: Application
    Filed: April 19, 2016
    Publication date: February 2, 2017
    Inventors: Jin-Hwa RYU, Chan-Mo KANG, Lee-Mi DO, Kyu-Ha BAEK
  • Publication number: 20160274391
    Abstract: Provided herein is a flexible display device including a lower substrate; spacers formed on the lower substrate; an adhesive deposited on the spacers; a display material filled in between the spacers; and an upper substrate adhered to the lower substrate by the adhesive.
    Type: Application
    Filed: August 11, 2015
    Publication date: September 22, 2016
    Inventors: Chan Mo KANG, Lee Mi DO, Jin Hwa RYU, Kyu Ha BAEK
  • Patent number: 9335314
    Abstract: Disclosed herein is an optical circuit-type reformulated fuel detecting sensor device. The optical circuit-type reformulated fuel detecting sensor device includes: an optical source part generating optical signals having a single wavelength; a sensor part receiving the optical signals generated by the optical source part and outputting a reference optical signal and a sensed signal; a first photo-detector receiving the reference optical signal and outputting a reference optical output signal; a second photo-detector receiving the sensed signal and outputting a sensed optical output signal; an operation controlling part receiving the reference optical output signal and the sensed optical output signal and determining characteristics of fuel; and an output part receiving and outputting a result of the operation controlling part.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: May 10, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin-Hwa Ryu, Kyu-Ha Baek, Lee-Mi Do, Kang-Bok Lee
  • Patent number: 9278490
    Abstract: The present invention relates to a method for manufacturing a two-dimensional polymer optical waveguide, which is used for manufacturing a two-dimensional optical waveguide through simplified processes using a single imprint original master.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: March 8, 2016
    Assignee: Pusan National University Industry-University Cooperation Foundation
    Inventors: Myung Yung Jeong, Chang Seok Kim, Jin Hwa Ryu, Seung Hun Oh, Tae Ho Lee, Sang Uk Cho
  • Patent number: 9233487
    Abstract: The disclosure relates to a method for manufacturing a photoaligning integrated large area metallic stamp, which includes the following steps: making a unit device PLC mold pattern, and molding a unit PLC device pattern through a multistep imprinting method using the PLC mold pattern; heat treating the unit PLC device pattern to minimize scattering loss due to surface roughness; making a groove pattern for supporting an optical fiber; making an integrated PDMS mold for a unit device by aligning the unit PLC device pattern and the groove pattern; and repeatedly replicating the integrated PDMS mold for a unit device to make a large area PDMS pattern, and making a large area stamp through electroforming using the large area PDMS pattern.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: January 12, 2016
    Assignee: Pusan National University Industry-University Cooperation Foundation
    Inventors: Myung Yung Jeong, Seung Hun Oh, Jin Hwa Ryu, Sang Uk Cho, Tae Ho Lee
  • Publication number: 20150140677
    Abstract: Provided is a polymer planar optical circuit type dissolved oxygen sensor and a method of fabricating the sensor, including a polymer planar sheet embedded with a first wavelength optical signal transmission line transmitting a first wavelength optical signal emitted from a first optical source and a second wavelength optical signal transmission line transmitting a second optical signal emitted from a sensing membrane and having a fluorescent property, and the sensing membrane coated on the polymer planar sheet, and further including a second optical source emitting the second wavelength optical signal to compare an optical property of the second wavelength optical signal to an optical property of the first wavelength optical signal emitted from the first optical source.
    Type: Application
    Filed: June 19, 2014
    Publication date: May 21, 2015
    Inventors: Jin Hwa RYU, Kyu Ha BAEK, Lee Mi DO, Kang Bok LEE
  • Publication number: 20150136959
    Abstract: Disclosed herein is an optical circuit-type reformulated fuel detecting sensor device. The optical circuit-type reformulated fuel detecting sensor device includes: an optical source part generating optical signals having a single wavelength; a sensor part receiving the optical signals generated by the optical source part and outputting a reference optical signal and a sensed signal; a first photo-detector receiving the reference optical signal and outputting a reference optical output signal; a second photo-detector receiving the sensed signal and outputting a sensed optical output signal; an operation controlling part receiving the reference optical output signal and the sensed optical output signal and determining characteristics of fuel; and an output part receiving and outputting a result of the operation controlling part.
    Type: Application
    Filed: April 15, 2014
    Publication date: May 21, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jin-Hwa RYU, Kyu-Ha BAEK, Lee-Mi DO, Kang-Bok LEE
  • Publication number: 20130292052
    Abstract: The disclosure relates to a method for manufacturing a photoaligning integrated large area metallic stamp, which includes the following steps: making a unit device PLC mold pattern, and molding a unit PLC device pattern through a multistep imprinting method using the PLC mold pattern; heat treating the unit PLC device pattern to minimize scattering loss due to surface roughness; making a groove pattern for supporting an optical fiber; making an integrated PDMS mold for a unit device by aligning the unit PLC device pattern and the groove pattern; and repeatedly replicating the integrated PDMS mold for a unit device to make a large area PDMS pattern, and making a large area stamp through electroforming using the large area PDMS pattern.
    Type: Application
    Filed: February 22, 2011
    Publication date: November 7, 2013
    Applicant: Pusan National University Industry-University Cooperation Foundation
    Inventors: Myung Yung Jeong, Seung Hun Oh, Jin Hwa Ryu, Sang Uk Cho, Tae Ho Lee
  • Publication number: 20130062799
    Abstract: The present invention relates to a method for manufacturing a two-dimensional polymer optical waveguide, which is used for manufacturing a two-dimensional optical waveguide through simplified processes using a single imprint original master.
    Type: Application
    Filed: December 31, 2010
    Publication date: March 14, 2013
    Applicant: PUSAN NATIONAL UNIVERISTY INDUSTRY-UNIVERSITY COOP
    Inventors: Myung Yung Jeong, Chang Seok Kim, Jin Hwa Ryu, Seung Hun Oh, Tae Ho Lee, Sang Uk Cho