Patents by Inventor Hyun-chang Kim

Hyun-chang Kim 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: 20230177995
    Abstract: A display driving circuit includes a clock signal generator which generates a clock signal at a frequency in response to a frequency control signal, a frequency variation determiner which adaptively changes a frequency variation of the clock signal, based on a magnitude of a deviation between the frequency of the clock signal and a target frequency calculated based on a reference clock signal supplied from the outside, and a frequency controller which generates the frequency control signal which updates the frequency of the clock signal, based on the frequency variation, and provides the frequency control signal to the clock signal generator.
    Type: Application
    Filed: January 26, 2023
    Publication date: June 8, 2023
    Inventors: Hyun Chang KIM, Se Byung CHAE
  • Publication number: 20230139528
    Abstract: Disclosed herein are fully synthetic polymer-based lung surfactant materials, for the first time, as next generation SRT. In vitro studies on these polymer lung surfactants show that the candidate materials effectively mimic the surface tension controlling properties of currently marketed natural lung surfactants. Further, the polymer lung surfactants have strong protein resistance, which makes this class of materials promising also for potential use in Acute Respiratory Distress Syndrome (ARDS) treatment.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 4, 2023
    Inventors: You-Yeon Won, Hyun Chang Kim
  • Patent number: 11608388
    Abstract: Disclosed herein are compositions comprising insoluble alpha-glucan particles having a high degree of crystallinity and small particle size. For example, the alpha-glucan particles can have a degree of crystallinity of at least about 0.65, and/or an average size of less than a micron. At least 50% of the glycosidic linkages of the insoluble alpha-glucan in the disclosed particles are alpha-1,3 glycosidic linkages. Further disclosed are methods of producing insoluble alpha-glucan particles, as well as their use in various applications and products.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: March 21, 2023
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Kyle Hyun Chang Kim, Yefim Brun, Lucia Daniela Ionescu, Juan David Londono, Jorge Mok, James Joshua Ohane, Lemuel Tong
  • Patent number: 11587487
    Abstract: A display driving circuit includes a clock signal generator which generates a clock signal at a frequency in response to a frequency control signal, a frequency variation determiner which adaptively changes a frequency variation of the clock signal, based on a magnitude of a deviation between the frequency of the clock signal and a target frequency calculated based on a reference clock signal supplied from the outside, and a frequency controller which generates the frequency control signal which updates the frequency of the clock signal, based on the frequency variation, and provides the frequency control signal to the clock signal generator.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: February 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Chang Kim, Se Byung Chae
  • Patent number: 11497764
    Abstract: Disclosed herein are fully synthetic polymer-based lung surfactant materials, for the first time, as next generation SRT. In vitro studies on these polymer lung surfactants show that the candidate materials effectively mimic the surface tension controlling properties of currently marketed natural lung surfactants. Further, the polymer lung surfactants have strong protein resistance, which makes this class of materials promising also for potential use in Acute Respiratory Distress Syndrome (ARDS) treatment.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: November 15, 2022
    Assignee: Purdue Research Foundation
    Inventors: You-Yeon Won, Hyun Chang Kim
  • Publication number: 20220223082
    Abstract: A display driving circuit includes a clock signal generator which generates a clock signal at a frequency in response to a frequency control signal, a frequency variation determiner which adaptively changes a frequency variation of the clock signal, based on a magnitude of a deviation between the frequency of the clock signal and a target frequency calculated based on a reference clock signal supplied from the outside, and a frequency controller which generates the frequency control signal which updates the frequency of the clock signal, based on the frequency variation, and provides the frequency control signal to the clock signal generator.
    Type: Application
    Filed: August 26, 2021
    Publication date: July 14, 2022
    Inventors: Hyun Chang KIM, Se Byung CHAE
  • Patent number: 11270653
    Abstract: A display device includes the following elements: a display panel comprising pixels; a data driver supplying data signals to the plurality of pixels; a driving voltage supply supplying a first driving voltage to the data driver; a power supply supplying a first input driving voltage to the driving voltage supply; and a timing controller providing control signals to the data driver, the driving voltage supply, and the power supply and providing luminance information and per-second frame rate information of the display panel to the driving voltage supply. The driving voltage supply comprises an input driving voltage adjuster which adjusts the first input driving voltage to a second input driving voltage based on the luminance information and the per-second frame rate information.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: March 8, 2022
    Inventors: Hyun Chang Kim, Sung Chun Park, Dong Kwan Han
  • Publication number: 20210375214
    Abstract: A display device includes the following elements: a display panel comprising pixels; a data driver supplying data signals to the plurality of pixels; a driving voltage supply supplying a first driving voltage to the data driver; a power supply supplying a first input driving voltage to the driving voltage supply; and a timing controller providing control signals to the data driver, the driving voltage supply, and the power supply and providing luminance information and per-second frame rate information of the display panel to the driving voltage supply. The driving voltage supply comprises an input driving voltage adjuster which adjusts the first input driving voltage to a second input driving voltage based on the luminance information and the per-second frame rate information.
    Type: Application
    Filed: January 28, 2021
    Publication date: December 2, 2021
    Inventors: Hyun Chang KIM, Sung Chun PARK, Dong Kwan HAN
  • Publication number: 20210226422
    Abstract: A method for manufacturing a surge absorbing device is provided. The method includes providing an elongate ceramic tube having a hollow space defined therein and having open and opposite first and second end; forming a first plating layer and a second plating layer on the first end and the second end, respectively; placing a surge absorbing element within the hollow space within the ceramic tube; disposing first and second brazing rings on the first plating layer and the second plating layer, respectively; disposing first and second sealing electrodes on the first and second brazing rings respectively; and melting the first and second brazing rings in an inert gas atmosphere to attach the first and second sealing electrodes onto the first plating layer and the second plating layer, respectively.
    Type: Application
    Filed: April 6, 2021
    Publication date: July 22, 2021
    Applicants: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, SMART ELECTRONICS INC.
    Inventors: Chang-Koo Kim, Hae-Min Lee, Doo Won Kang, Hyun Chang Kim
  • Publication number: 20210187010
    Abstract: Disclosed herein are fully synthetic polymer-based lung surfactant materials, for the first time, as next generation SRT. In vitro studies on these polymer lung surfactants show that the candidate materials effectively mimic the surface tension controlling properties of currently marketed natural lung surfactants. Further, the polymer lung surfactants have strong protein resistance, which makes this class of materials promising also for potential use in Acute Respiratory Distress Syndrome (ARDS) treatment.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 24, 2021
    Applicant: Purdue Research Foundation
    Inventors: You-Yeon Won, Hyun Chang Kim
  • Patent number: 11005235
    Abstract: A method for manufacturing a surge absorbing device is provided. The method includes providing an elongate ceramic tube having a hollow space defined therein and having open and opposite first and second end; forming a first plating layer and a second plating layer on the first end and the second end, respectively; placing a surge absorbing element within the hollow space within the ceramic tube; disposing first and second brazing rings on the first plating layer and the second plating layer, respectively; disposing first and second sealing electrodes on the first and second brazing rings respectively; and melting the first and second brazing rings in an inert gas atmosphere to attach the first and second sealing electrodes onto the first plating layer and the second plating layer, respectively.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: May 11, 2021
    Assignees: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, SMART ELECTRONICS INC.
    Inventors: Chang-Koo Kim, Hae-Min Lee, Doo Won Kang, Hyun Chang Kim
  • Publication number: 20210130504
    Abstract: Disclosed herein are compositions comprising insoluble alpha-glucan particles having a high degree of crystallinity and small particle size. For example, the alpha-glucan particles can have a degree of crystallinity of at least about 0.65, and/or an average size of less than a micron. At least 50% of the glycosidic linkages of the insoluble alpha-glucan in the disclosed particles are alpha-1,3 glycosidic linkages. Further disclosed are methods of producing insoluble alpha-glucan particles, as well as their use in various applications and products.
    Type: Application
    Filed: November 5, 2020
    Publication date: May 6, 2021
    Inventors: Kyle Hyun Chang Kim, Yefim Brun, Lucia Daniela Ionescu, Juan David Londono, Jorge Mok, James Joshua Ohane, Lemuel Tong
  • Publication number: 20200046756
    Abstract: Disclosed herein are fully synthetic polymer-based lung surfactant materials, for the first time, as next generation SRT. In vitro studies on these polymer lung surfactants show that the candidate materials effectively mimic the surface tension controlling properties of currently marketed natural lung surfactants. Further, the polymer lung surfactants have strong protein resistance, which makes this class of materials promising also for potential use in Acute Respiratory Distress Syndrome (ARDS) treatment.
    Type: Application
    Filed: October 22, 2019
    Publication date: February 13, 2020
    Applicant: Purdue Research Foundation
    Inventors: You-Yeon Won, Hyun Chang Kim
  • Patent number: 10485820
    Abstract: Disclosed herein are fully synthetic polymer-based lung surfactant materials, for the first time, as next generation SRT. In vitro studies on these polymer lung surfactants show that the candidate materials effectively mimic the surface tension controlling properties of currently marketed natural lung surfactants. Further, the polymer lung surfactants have strong protein resistance, which makes this class of materials promising also for potential use in Acute Respiratory Distress Syndrome (ARDS) treatment.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: November 26, 2019
    Assignee: Purdue Research Foundation
    Inventors: You-Yeon Won, Hyun Chang Kim
  • Publication number: 20180254612
    Abstract: The present disclosure provides a method for manufacturing a surge absorbing device, the method comprising: providing an elongate ceramic tube having a hollow space defined therein and having open and opposite first and second end; forming a first plating layer and a second plating layer on the first end and the second end, respectively; placing a surge absorbing element within the hollow space within the ceramic tube; disposing first and second brazing rings on the first plating layer and the second plating layer, respectively; disposing first and second sealing electrodes on the first and second brazing rings respectively; and melting the first and second brazing rings in an inert gas atmosphere to attach the first and second sealing electrodes onto the first plating layer and the second plating layer, respectively.
    Type: Application
    Filed: August 10, 2016
    Publication date: September 6, 2018
    Applicants: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUN DATION, SMART ELECTRONICS INC.
    Inventors: Chang-Koo KIM, Hae-Min LEE, Doo Won KANG, Hyun Chang KIM
  • Publication number: 20180153926
    Abstract: Disclosed herein are fully synthetic polymer-based lung surfactant materials, for the first time, as next generation SRT. In vitro studies on these polymer lung surfactants show that the candidate materials effectively mimic the surface tension controlling properties of currently marketed natural lung surfactants. Further, the polymer lung surfactants have strong protein resistance, which makes this class of materials promising also for potential use in Acute Respiratory Distress Syndrome (ARDS) treatment.
    Type: Application
    Filed: January 26, 2018
    Publication date: June 7, 2018
    Applicant: Purdue Research Foundation
    Inventors: You-Yeon Won, Hyun Chang Kim
  • Publication number: 20180047539
    Abstract: Provided are a fuse resistor and a method of manufacturing the same, more particularly, are a fuse resistor mounted at an electric circuit of an electronic product to prevent the electronic product from breaking down due to inrush current, increase of internal temperature, and continuous overcurrent, and a method of manufacturing the same. The fuse resistor is capable of simplifying an assembly process by coupling a thermal fuse and a lead wire in a modularized manner and by fixing a fusing lead wire to the lead wire in an integrated manner to form a lower molding unit, and a method of manufacturing the same. The fuse resistor has a simple structure and is capable of being miniaturized as an integrated structure of the thermal fuse and the lead wire is inserted, and a method of manufacturing the same.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 15, 2018
    Inventors: Doo Won KANG, Hyun Chang KIM, Hwang Je MUN, A Lam SHIN
  • Patent number: 9753532
    Abstract: An image processing method includes receiving a first image rendered by a graphics processing unit (GPU) from the GPU, comparing the first image with a second image rendered by the GPU before the first image, and controlling a rendering frequency of the GPU based on a result of comparing the first image with the second image.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: September 5, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Gwan Kim, Taek-Hyun Kim, Hyun-Chang Kim, Chan-Wook Park, Jung-Min Oh
  • Patent number: 9735551
    Abstract: A surge absorber and a manufacturing method thereof are disclosed. Since a ceramic material with excellent mechanical strength is used to form a ceramic tube and the ceramic tube is joined to sealing electrodes by use of brazing rings according to the method of manufacturing the surge absorber, durability of the surge absorber is considerably improved. Since the ceramic tube is completely sealed, the surge absorber may be stably used at a high voltage.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: August 15, 2017
    Assignee: SMART ELECTRONICS INC.
    Inventors: Jong il Jung, Doo Won Kang, Gyu Jin Ahn, Sang Joon Jin, Hyun Chang Kim, Kyung Mi Lee, Dong Ho Jeon, Dong Jin Kang
  • Patent number: 9722418
    Abstract: Disclosed is a complex protection device including a substrate, fuse terminals provided on the substrate, first resistive terminals provided on the substrate so as to be separated from the fuse terminals, second resistive terminals provided on the substrate opposite to the first resistive terminals across the fuse terminals, a fusible element connected to the fuse terminals, a first surface-mounted resistive element connected to the first resistive terminals, a second surface-mounted resistive element connected to the second resistive terminals, at least one printed resistive element connected to at least one of the first resistive terminals and the second resistive terminals and connected to at least one of the first surface-mounted resistive element and the second surface-mounted resistive element, and a switching element controlling flow of current to the first and second surface-mounted resistive elements and the at least one printed resistive element if overvoltage is applied.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 1, 2017
    Assignee: SMART ELECTRONICS INC.
    Inventors: Doo Won Kang, Hyun Chang Kim, Kwang Beom Kim, Saeng Soo Yun, Hyuk Jae Kwon