Patents by Inventor Jae Kwan Lee

Jae Kwan Lee 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: 20240166801
    Abstract: The present invention relates to a biodegradable copolymer polyester resin comprising an anhydrosugar alcohol and an anhydrosugar alcohol-alkylene glycol and a method for preparing same and, more specifically, to a polyester resin and a method for preparing same, wherein the polyester resin is excellent in color value and biodegradability as well as heat resistance and mechanical properties, by copolymerizing specific contents of a dicarboxyl component containing adipic acid or an ester thereof and a diol component containing an anhydrosugar alcohol and an anhydrosugar alcohol-alkylene glycol.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 23, 2024
    Applicant: SAMYANG CORPORATION
    Inventors: Min Sun LEE, Jae Kwan KWON, Mi Ran KIM, Yun Ju CHANG, Young Do KWON, Hoon RYU
  • Publication number: 20240170172
    Abstract: The present invention relates to a method of solidifying radioactive waste containing boron, The method includes (a) mixing the radioactive waste, metakaolin, fumed silica, potassium hydroxide, and water to generate a second mixture, in which the radioactive waste contains boron.
    Type: Application
    Filed: June 30, 2021
    Publication date: May 23, 2024
    Inventors: Byoung Kwan KIM, Woo Yong UM, Jae Hyuk KANG, Ju Hyeok LEE
  • Patent number: 11978146
    Abstract: The present invention relates to a three-dimensional reconstructing method of a 2D medical image. A three-dimensional reconstructing device includes: a communicator for receiving sequential 2D images with an arbitrary slice gap; a sliced image generator for generating at least one sliced image positioned between the 2D images based on a feature point of the adjacent 2D images; and a controller for reconstructing the 2D image into a 3D image by use of the generated sliced image and providing the 3D image.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: May 7, 2024
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Dong Young Lee, Yu Kyeong Kim, Jae Sung Lee, Min Soo Byun, Seong A Shin, Seung Kwan Kang
  • Publication number: 20240085469
    Abstract: A transmitting and receiving circuit may include a first CMOS inverter configured to receive a first power supply signal and a first input signal. The transmitting and receiving circuit may include a first calculation amplifier including a non-inverted input terminal connected to an output terminal of the first CMOS inverter, and a first resistor connected between the output terminal of the first calculation amplifier and a first node. The output terminal of the first calculation amplifier and an inverted input terminal of the first calculation amplifier may be connected to each other. A first output signal may have a level smaller than that of the first input signal and may be output to the first node.
    Type: Application
    Filed: September 11, 2023
    Publication date: March 14, 2024
    Inventors: Seong Kwan LEE, Min Ho KANG, Hyung-Sun RYU, Cheol Min PARK, Jun Yeon WON, Jae Moo CHOI
  • Patent number: 11918632
    Abstract: The present invention provides a method for preventing or treating liver cancer in a subject comprising administrating at least one selected from the group consisting of an Ssu72 peptide, a polynucleotide encoding the Ssu72 peptide and an expression vector containing the polynucleotide to the subject.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: March 5, 2024
    Assignees: CUROGEN TECHNOLOGY CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Chang Woo Lee, Jin Kwan Lee, Hyun Soo Kim, Jae-kyung Kim, Joon Sup Yoon
  • Patent number: 10991293
    Abstract: The present invention relates to a source driver for a display apparatus, which is capable of removing delay of a DAC (Digital-Analog Converter) and in which a part of gamma lines for providing gamma voltages to the DAC is designed to have a large width and a small resistance value. Before driving a first gamma voltage to a level corresponding to display data, the DAC can select an adjacent gamma line having a small resistance value and drive a second gamma voltage, thereby removing a delay time.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: April 27, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventor: Jae Kwan Lee
  • Patent number: 10937360
    Abstract: The present invention discloses a source driver for a display apparatus, which drives a display panel using display data and senses a pixel signal of the display panel. The source driver may include a sensor and ADC (Analog-digital Converter) which provide the pixel sensing signal obtained by comparing a reference voltage and a pixel signal of the display panel using one buffer at a sensing period, and drive the source signal to the display panel using the buffer at a driving period.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: March 2, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventors: Jae Kwan Lee, Kyung Min Kim
  • Patent number: 10844248
    Abstract: The present invention relates to a pressure-sensitive adhesive composition including a polymer of a monomer mixture containing isobornyl (meth)acrylate, a pressure-sensitive adhesive sheet, and a semiconductor wafer backgrinding method. In the present invention, by using isobornyl (meth)acrylate which is a hard-type monomer and has a low hydrophilic property, a pressure-sensitive adhesive composition having superior releasing and re-releasing properties and wettability with respect to the wafer, and having an excellent wafer-proofing property; a pressure-sensitive adhesive sheet prepared by using the pressure-sensitive adhesive composition; and a backgrinding method using the pressure-sensitive adhesive sheet can be provided.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: November 24, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Se Ra Kim, Yoon Jeong Baek, Jang Soon Kim, Jae Kwan Lee, Hyun Woo Park
  • Patent number: 10657902
    Abstract: Disclosed is a sensing circuit of a display device for external compensation of an OLED. The sensing circuit includes a current receiving unit configured to receive a pixel current containing a leakage current, convert the pixel current at a preset current ratio, and output the converted pixel current; a current source unit; a current sinking unit; a current detection unit; and a detection signal output unit configured to sample an offset voltage corresponding to the leakage current using the detected current.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: May 19, 2020
    Assignee: Silicon Works Co., Ltd.
    Inventors: Jae Kwan Lee, Dong Hyun Hwang, Hyun Ho Kim
  • Publication number: 20200118484
    Abstract: The present invention discloses a source driver that drives a source driver. The source driver is configured in such a manner that a source driving module for driving display data and a conversion module for converting a sensing signal of a display panel into sensing data share components thereof. Thus, the area of the source driver can be reduced.
    Type: Application
    Filed: December 11, 2019
    Publication date: April 16, 2020
    Applicant: Silicon Works Co., Ltd.
    Inventors: Jae Kwan Lee, Jong Keun Hwang
  • Publication number: 20200035143
    Abstract: The present invention relates to a source driver for a display apparatus, which is capable of removing delay of a DAC (Digital-Analog Converter) and in which a part of gamma lines for providing gamma voltages to the DAC is designed to have a large width and a small resistance value. Before driving a first gamma voltage to a level corresponding to display data, the DAC can select an adjacent gamma line having a small resistance value and drive a second gamma voltage, thereby removing a delay time.
    Type: Application
    Filed: October 3, 2019
    Publication date: January 30, 2020
    Applicant: SILICON WORKS CO., LTD.
    Inventor: Jae Kwan LEE
  • Patent number: 10540924
    Abstract: The present invention discloses a source driver that drives a source driver. The source driver is configured in such a manner that a source driving module for driving display data and a conversion module for converting a sensing signal of a display panel into sensing data share components thereof. Thus, the area of the source driver can be reduced.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: January 21, 2020
    Assignee: Silicon Works Co., Ltd
    Inventors: Jae Kwan Lee, Jong Keun Hwang
  • Patent number: 10467942
    Abstract: The present invention relates to a source driver for a display apparatus, which is capable of removing delay of a DAC (Digital-Analog Converter) and in which a part of gamma lines for providing gamma voltages to the DAC is designed to have a large width and a small resistance value. Before driving a first gamma voltage to a level corresponding to display data, the DAC can select an adjacent gamma line having a small resistance value and drive a second gamma voltage, thereby removing a delay time.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: November 5, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Jae Kwan Lee
  • Publication number: 20180061329
    Abstract: Disclosed is a sensing circuit of a display device for external compensation of an OLED. The sensing circuit includes a current receiving unit configured to receive a pixel current containing a leakage current, convert the pixel current at a preset current ratio, and output the converted pixel current; a current source unit; a current sinking unit; a current detection unit; and a detection signal output unit configured to sample an offset voltage corresponding to the leakage current using the detected current.
    Type: Application
    Filed: August 11, 2017
    Publication date: March 1, 2018
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Jae Kwan LEE, Dong Hyun HWANG, Hyun Ho KIM
  • Publication number: 20170290217
    Abstract: The present invention relates to a pressure-sensitive adhesive composition including a polymer of a monomer mixture containing isobornyl (meth)acrylate, a pressure-sensitive adhesive sheet, and a semiconductor wafer backgrinding method. In the present invention, by using isobornyl (meth)acrylate which is a hard-type monomer and has a low hydrophilic property, a pressure-sensitive adhesive composition having superior releasing and re-releasing properties and wettability with respect to the wafer, and having an excellent wafer-proofing property; a pressure-sensitive adhesive sheet prepared by using the pressure-sensitive adhesive composition; and a backgrinding method using the pressure-sensitive adhesive sheet can be provided.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 5, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Se Ra KIM, Yoon Jeong BAEK, Jang Soon KIM, Jae Kwan LEE, Hyun Woo PARK
  • Publication number: 20170213495
    Abstract: The present invention relates to a source driver for a display apparatus, which is capable of removing delay of a DAC (Digital-Analog Converter) and in which a part of gamma lines for providing gamma voltages to the DAC is designed to have a large width and a small resistance value. Before driving a first gamma voltage to a level corresponding to display data, the DAC can select an adjacent gamma line having a small resistance value and drive a second gamma voltage, thereby removing a delay time.
    Type: Application
    Filed: January 19, 2017
    Publication date: July 27, 2017
    Applicant: SILICON WORKS CO., LTD.
    Inventor: Jae Kwan LEE
  • Publication number: 20170206832
    Abstract: The present invention discloses a source driver that drives a source driver. The source driver is configured in such a manner that a source driving module for driving display data and a conversion module for converting a sensing signal of a display panel into sensing data share components thereof. Thus, the area of the source driver can be reduced.
    Type: Application
    Filed: January 19, 2017
    Publication date: July 20, 2017
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Jae Kwan LEE, Jong Keun HWANG
  • Publication number: 20170206833
    Abstract: The present invention discloses a source driver for a display apparatus, which drives a display panel using display data and senses a pixel signal of the display panel. The source driver may include a sensor and ADC (Analog-digital Converter) which provide the pixel sensing signal obtained by comparing a reference voltage and a pixel signal of the display panel using one buffer at a sensing period, and drive the source signal to the display panel using the buffer at a driving period.
    Type: Application
    Filed: January 19, 2017
    Publication date: July 20, 2017
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Jae Kwan LEE, Kyung Min KIM
  • Patent number: 9608225
    Abstract: A light emitting device may include a first electrode on a substrate, a first emission layer on the first electrode, a buffer layer on the first emission layer, a middle electrode on the buffer layer, a second emission layer on the middle electrode, and a second electrode on the second emission layer. The buffer layer may include a material selected from the group consisting of a metal oxide, a polyelectrolyte, and a combination thereof. The first emission layer, buffer layer, middle electrode, and second emission layer may be fabricated using a wet process.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: March 28, 2017
    Assignees: Samsung Electronics Co., Ltd., The Regents of the University of California
    Inventors: Do-Hwan Kim, Sang-Yoon Lee, Kwanghee Lee, Sung Heum Park, Shinuk Cho, Jae-Kwan Lee, Alan J. Heeger
  • Patent number: 8653279
    Abstract: The present embodiments relate to a dye for a dye-sensitized solar cell and a dye-sensitized solar cell prepared from the same. The dye includes a fluorenyl-containing compound. The dye according to the present embodiments is applied to a light absorption layer to improve photovoltaic efficiency and increase an open-circuit voltage.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: February 18, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Kwan Lee, Ji-Won Lee, Jae-Jung Ko, Sang-Hoon Kim, Soo-Jin Moon, Moon-Sung Kang, Moon-Seok Kwon