Patents by Inventor Yong-su Kim

Yong-su 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: 20210224438
    Abstract: Disclosed is a simulation method and simulator for a system including a plurality of microring resonators. The simulation method according to the present disclosure may include converting the plurality of microring resonators into an equivalent model, generating a virtual system including the equivalent model, inputting an input signal to the virtual system, and outputting an output signal from the virtual system.
    Type: Application
    Filed: December 28, 2020
    Publication date: July 22, 2021
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Tae Hee HAN, Yong Wook KIM, Jeong Beom HONG, Min Su KIM
  • Publication number: 20210214667
    Abstract: The bioenvironmental simulation device according to an embodiment of the present invention includes at least one mounting unit on which cells to be measured are placed, a rotational force application unit configured to rotate the mounting unit so as to apply a rotational force to the cells to be measured placed on the mounting unit, and a culture liquid flow device through which a culture liquid flows across the mounting unit, wherein the culture liquid flows by the culture liquid flow device so as to apply a shear force to the cells to be measured.
    Type: Application
    Filed: December 10, 2019
    Publication date: July 15, 2021
    Applicants: Seoul National University R&DB Foundation, Seoul National University Hospital
    Inventors: Seung Hee YANG, Yon Su KIM, Dong Ki KIM, Sa Ram LEE, Yong Chul KIM, Mi Yeon YU, Ji Eun KIM
  • Publication number: 20210217895
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Application
    Filed: December 8, 2020
    Publication date: July 15, 2021
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang, Dae Ho Kim, Jae Neung Kim, Myoung Geun Cha, Sang Gap Kim, Yu-Gwang Jeong
  • Publication number: 20210214705
    Abstract: Compositions and methods are provided for producing 2?fucosyliaciose and L-fucose from recombinant microorganisms.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 15, 2021
    Applicants: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Yong-Su JIN, Jingjing LIU, Sora YU, Eun Ju YUN, Suryang KWAK, Kyoung Heon KIM, Jaewon LEE
  • Publication number: 20210214483
    Abstract: Dental composite composition including a glass ceramic and a curable organic material is described in which the glass ceramic includes a crystal phase having an average grain size of 50 to 400 nm, and the dental composite composition is provided as a dental prosthetic material exhibiting superior transparency and mechanical properties comparing to conventional composite products containing micro-sized crystal grains and also has excellent aesthetics and processability required for prosthetic materials for same-day dental prosthetic service.
    Type: Application
    Filed: February 4, 2020
    Publication date: July 15, 2021
    Inventors: Yong Su KIM, Hyung Bong LIM, Kyung Sik OH, Sung Min KIM, Young Pyo HONG, Joon Hyung KIM, Si Won SON, Yena KIM
  • Patent number: 10936287
    Abstract: The present invention provides a random number generation system comprising: an image sensor module for outputting dark noise generated from each unit pixel region respectively that is shielded from external light as digital data; and a control unit for classifying the respective pieces of digital data output from the image sensor module, for allocating random numbers to the same using a database in which a plurality of reference values are stored for each unit pixel, and for collating the same so as to generate a first random number.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: March 2, 2021
    Assignee: Korea Institute of Science and Technology
    Inventors: Sang Wook Han, Sung Wook Moon, Yong Su Kim, Byung Kwon Park
  • Patent number: 10882776
    Abstract: Provided is a method for preparing a lithium disilicate glass-ceramics containing silicate as a main component, and more particularly, to a method for preparing a glass-ceramics, which is capable of adjusting machinability or translucency according to a crystalline size by using a first heat treatment or a second heat treatment. To this end, a method for preparing a glass-ceramics containing a silica crystalline phase includes: performing a first heat treatment on a glass composition at a temperature of 400 to 850° C., so that a lithium disilicate crystalline phase and a silica crystalline phase each having a size of 5 to 2,000 nm are formed through the first heat treatment. After the first heat treatment, the method further includes performing a second heat treatment at a temperature of 780 to 880° C., so that translucency is adjusted by a temperature of the second heat treatment.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: January 5, 2021
    Assignee: HASS CO., LTD
    Inventors: Yong Su Kim, Hyun Jun Jeon, Hyung Bong Lim, Kyung Sik Oh, Sung Min Kim, Young Pyo Hong, Joon Hyung Kim
  • Publication number: 20200377403
    Abstract: Provided is a dental bulk block for grinding processing. The dental bulk block includes a crystalloid, which includes lithium disilicate as a main crystal phase and silicate as a sub-crystal phase, and hyaline as a remainder. The dental bulk block is a functionally gradient material having a crystalline size gradient with respect to a depth thereof and having no interface at a change point of a crystalline size gradient value. The dental bulk block is useful for manufacturing an artificial dental prosthesis that is similar to natural teeth. Accordingly, the time and process for manufacturing the artificial dental prosthesis are shortened, and structural stability is increased in terms of dispersion of force due to gradient functionalization of mechanical properties.
    Type: Application
    Filed: August 6, 2019
    Publication date: December 3, 2020
    Inventors: Hyung Bong LIM, Yong Su KIM, Kyung Sik OH, Young Pyo HONG, Sung Min KIM, Joon Hyung KIM, Si Won SON, Yena KIM
  • Publication number: 20200287714
    Abstract: This specification discloses a quantum public-key cryptosystem. The quantum public-key cryptosystem may use two rotation operators R{circumflex over (n)}(?) and R{circumflex over (m)}(?) satisfying a cyclic evolution. The two rotation operators R{circumflex over (n)}(?) and R{circumflex over (m)}(?) do not have a commutation relation or an anti-commutation relation with each other. The commutation relation or the anti-commutation relation is established when either of the following conditions is satisfied: ?=2i?, ?=2j?, or {circumflex over (n)}·{circumflex over (m)}=1 (i, j=integer), and ?=(2k+1)?, ?=(2l+1)?, or {circumflex over (n)}·{circumflex over (m)}=0 (k, l=integer).
    Type: Application
    Filed: January 10, 2020
    Publication date: September 10, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Wook HAN, Sung Wook MOON, Yong Su KIM, Sang Yun LEE, Young Wook CHO, Min Sung KANG, Ji Woong CHOI
  • Patent number: 10725088
    Abstract: An apparatus for estimating the lifetime of a surge protective device (SPD) using the discharge characteristics of a metal oxide varistor (MOV) includes an MOV having an input terminal and an output terminal; an impulse voltage application unit applying an impulse voltage for MOV test to the input terminal of the MOV; a discharge current measurement unit; a first switching unit connecting a power line to the input terminal of the MOV; a second switching unit connecting a ground line to the output terminal of the MOV in the normal mode and selectively connecting the discharge current measurement unit in the MOV test mode; an MOV test management unit providing information; a discharge current check unit generating an MOV abnormal signal; and an MOV state display unit displaying an MOV abnormal signal.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: July 28, 2020
    Assignee: Sunkwang Lightning Protection Technical Institute Inc.
    Inventors: Dong-Jin Kim, Won-Sung Kwon, Yong-Su Kim, Jae-Hyo Park, Kyung-Hoon Jang, Kwang-Yeop Jang, Dong-Hyun Kim, Sang-Won Seo, Byeong-U Kim, Hee-Soo Park
  • Patent number: 10690709
    Abstract: A ground electrode (100) positioned in the earth and a monitoring device (200) configured to measure a current and resistance of a ground line, where the monitoring device (200) includes a ground current sensing unit (210) configured to measure the current of the ground line, a resistance sensing unit (220) configured to measure ground resistance of the earth and an earth resistance rate, a voltage sensing unit (230) configured to check a voltage value of commercial power, a temperature and humidity sensing unit (240) configured to check a surrounding temperature and humidity of the monitoring device (200), and a monitoring unit (250) configured to confirm whether the ground current, ground resistance and earth resistance measured are abnormal values by compared with reference values classified based on the temperature and humidity measured.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: June 23, 2020
    Assignee: SUNKWANG LIGHTNING PROTECTION TECHNICAL INSTITUTE INC.
    Inventors: Dong-Jin Kim, Jong-Yeon Kim, Wan-Seong Kwon, Dong-Min Kim, Yong-Su Kim, Byeong-U Kim
  • Patent number: 10556819
    Abstract: The present invention relates to a method for preparing a lithium disilicate glass-ceramics containing silicate as a main component, and more particularly, to a method for preparing a glass-ceramics, which is capable of adjusting machinability or translucency according to a crystalline size by using a first heat treatment or a second heat treatment. To this end, a method for preparing a glass-ceramics containing a silica crystalline phase includes: performing a first heat treatment on a glass composition at a temperature of 400 to 850° C., so that a lithium disilicate crystalline phase and a silica crystalline phase each having a size of 5 to 2,000 nm are formed through the first heat treatment. After the first heat treatment, the method further includes performing a second heat treatment at a temperature of 780 to 880° C., so that translucency is adjusted by a temperature of the second heat treatment.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: February 11, 2020
    Assignee: HASS CO., LTD
    Inventors: Yong Su Kim, Hyun Jun Jeon, Hyung Bong Lim, Kyung Sik Oh, Sung Min Kim, Young Pyo Hong, Joon Hyung Kim
  • Publication number: 20200024175
    Abstract: Provided is a method for preparing a lithium disilicate glass-ceramics containing silicate as a main component, and more particularly, to a method for preparing a glass-ceramics, which is capable of adjusting machinability or translucency according to a crystalline size by using a first heat treatment or a second heat treatment. To this end, a method for preparing a glass-ceramics containing a silica crystalline phase includes: performing a first heat treatment on a glass composition at a temperature of 400 to 850° C., so that a lithium disilicate crystalline phase and a silica crystalline phase each having a size of 5 to 2,000 nm are formed through the first heat treatment. After the first heat treatment, the method further includes performing a second heat treatment at a temperature of 780 to 880° C., so that translucency is adjusted by a temperature of the second heat treatment.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Inventors: Yong Su Kim, Hyun Jun Jeon, Hyung Bong Lim, Kyung Sik Oh, Sung Min Kim, Young Pyo Hong, Joon Hyung Kim
  • Publication number: 20190353694
    Abstract: An apparatus for estimating the lifetime of a surge protective device (SPD) using the discharge characteristics of a metal oxide varistor (MOV) includes an MOV having an input terminal and an output terminal; an impulse voltage application unit applying an impulse voltage for MOV test to the input terminal of the MOV; a discharge current measurement unit; a first switching unit connecting a power line to the input terminal of the MOV; a second switching unit connecting a ground line to the output terminal of the MOV in the normal mode and selectively connecting the discharge current measurement unit in the MOV test mode; an MOV test management unit providing information; a discharge current check unit generating an MOV abnormal signal; and an MOV state display unit displaying an MOV abnormal signal.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 21, 2019
    Inventors: Dong-Jin KIM, Won-Sung KWON, Yong-Su KIM, Jae-Hyo PARK, Kyung-Hoon JANG, Kwang-Yeop JANG, Dong-Hyun KIM, Sang-Won SEO, Byeong-U KIM, Hee-Soo PARK
  • Publication number: 20190299173
    Abstract: The present invention provides a vessel used for a centrifuge, a centrifugation method using same, and a method for stromal vascular fraction (SVF) isolation using same. In particular, the centrifuge vessel according to the present invention has a rotatable body unit (300) provided with a side accommodation part (310) which is on the side thereof and formed by extending at least a part thereof radially outwards and on which is positioned a plate (150) having a radial end positioned therein. As a result, the present invention substantially eliminates a stirring effect, has high isolation efficiency, and obtains a superior SVF yield.
    Type: Application
    Filed: October 18, 2016
    Publication date: October 3, 2019
    Inventors: Jong Ha Park, Soon Gee Hong, Bo Yung Yoo, Jun Hyuk Seo, Hyun Seung Ryu, Yong Su Kim, In Ho Kim
  • Publication number: 20190278567
    Abstract: The present invention provides a random number generation system comprising: an image sensor module for outputting dark noise generated from each unit pixel region respectively that is shielded from external light as digital data; and a control unit for classifying the respective pieces of digital data output from the image sensor module, for allocating random numbers to the same using a database in which a plurality of reference values are stored for each unit pixel, and for collating the same so as to generate a first random number.
    Type: Application
    Filed: September 26, 2017
    Publication date: September 12, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Wook HAN, Sung Wook MOON, Yong Su KIM, Byung Kwon PARK
  • Publication number: 20190219620
    Abstract: A ground electrode (100) positioned in the earth and a monitoring device (200) configured to measure a current and resistance of a ground line, where the monitoring device (200) includes a ground current sensing unit (210) configured to measure the current of the ground line, a resistance sensing unit (220) configured to measure ground resistance of the earth and an earth resistance rate, a voltage sensing unit (230) configured to check a voltage value of commercial power, a temperature and humidity sensing unit (240) configured to check a surrounding temperature and humidity of the monitoring device (200), and a monitoring unit (250) configured to confirm whether the ground current, ground resistance and earth resistance measured are abnormal values by compared with reference values classified based on the temperature and humidity measured.
    Type: Application
    Filed: June 7, 2017
    Publication date: July 18, 2019
    Applicant: SUNKWANG LIGHTING PROTECTION TECHNICAL INSTITUTE INC.
    Inventors: Dong-Jin KIM, Jong-Yeon KIM, Wan-Seong KWON, Dong-Min KIM, Yong-Su KIM, Byeong-U KIM
  • Patent number: 10142033
    Abstract: Disclosed is a communication apparatus including a synchronization signal detector configured to detect a synchronization signal received from other communication apparatus coupled to the communication apparatus, wherein the other communication apparatus sends a quantum signal generated by a first light source to the communication apparatus, and a second light source configured to generate a decoy signal to be added to a quantum signal that is to be sent to the other communication apparatus according to a result of the detection of the synchronization signal.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: November 27, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Sang Wook Han, Sung Wook Moon, Yong Su Kim, Min Ki Woo
  • Patent number: 10110378
    Abstract: Disclosed is a method for stabilizing a quantum cryptography system, which includes: determining whether the quantum cryptography system operates in a stabilized state, on the basis of a bit error rate or a key rate of the quantum cryptography system; and readjusting an arrival time of a gate pulse or a laser operation time so that an arrival time of a single photon for a photon detector is aligned with the arrival time of the gate pulse, when the quantum cryptography system does not operate in a stabilized state. Here, the quantum cryptography system may be a two-way quantum cryptography system.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 23, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Sang Wook Han, Sung Wook Moon, Yong-Su Kim, Il Young Kim, Byungkwon Park
  • Patent number: D924882
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: July 13, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jin-Su Park, Gil-Jae Lee, Hee-Bong Kim, Pil-Kwon Jung, Yong-Gu Do