Patents by Inventor Changhee Kim

Changhee 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: 20210363388
    Abstract: An adhesive gripper for pick-and-place maneuvers comprises one or more legs, where each leg terminates in a foot rotatably connected to the respective leg. Each foot includes a SMP dry adhesive comprising a shape memory polymer, and a rigid backing layer attached to a back side of the SMP dry adhesive, such that a front side of the SMP dry adhesive is available for attachment and release of objects. The adhesive gripper further includes a handle portion connected to the one or more legs, a release mechanism comprising a release ring within the handle portion, and one or more releasing rods integrated with the one or more legs for release of an object onto a substrate.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 25, 2021
    Inventors: Seok Kim, ChangHee Son
  • Publication number: 20210335576
    Abstract: A frequency tuning impedance matching method includes analyzing a start driving frequency, set by a user, and an RF output signal to vary a driving frequency. Specifically, a next frequency may be predicted using susceptance which is an imaginary part of measured admittance in an n-th pulse. Accordingly, impedance matching may be completed at high speed or an optimal frequency may be reached at high speed.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 28, 2021
    Inventors: Changhee LEE, Hanam KIM, Jongmin KIM, Jin HUH, Ka Sing LEUNG
  • Publication number: 20210301202
    Abstract: Provided are a quantum dot, a method of preparing the quantum dot, an optical member including the quantum dot, and an electronic device including the quantum dot. The quantum dot includes a core including indium (In), A1, and A2; and a shell covering the core. A1 is a Group V element, A2 is a Group III element other than indium, and the core includes a first region, and a second region covering the first region. The first region does not include A2, and includes indium and A1, and the second region includes indium, A1, and A2, and indium and A2 are alloyed with each other in the second region.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 30, 2021
    Applicants: Samsung Display Co., Ltd., Hongik University Industry-Academia Cooperation Foundation
    Inventors: Yunhyuk KO, Heesun YANG, Changhee LEE, Kyunghye KIM, Sungwoon KIM, Jungho JO
  • Publication number: 20210269662
    Abstract: An inkjet composition for an inkjet printer, a light-emitting device including the same, and a method of manufacturing the light-emitting device are provided. The ink composition may include light-emitting diodes and a solvent. The solvent may have a first viscosity at a first temperature section that may be greater than a second viscosity at a second temperature section. The solvent may include an ester compound of citric acid, glycol, alkanediol, alkanolamine, alkenic acid, alkenol, a pyrrolidone group-containing compound, glycerol, a compound represented by Formula 1, a compound represented by Formula 2, or any combination thereof: Substituents in Formula 1 and Formula 2 may be understood as described in connection with the detailed description. Each of the light-emitting diodes may have a size in a range of about 0.1 ?m to about 10 ?m.
    Type: Application
    Filed: November 9, 2020
    Publication date: September 2, 2021
    Applicant: Samsung Display Co., Ltd.
    Inventors: Junbo SIM, Dukki KIM, Hyojin KO, Changhee LEE, Jaekook HA
  • Patent number: 10960040
    Abstract: The present invention relates to a composition for preventing and treating muscle diseases or improving muscular function, containing a Platycodon grandiflorum extract. More specifically, the present invention relates to: a pharmaceutical composition for preventing and treating muscle diseases, containing a Platycodon grandiflorum extract; a food composition for preventing muscle diseases or improving muscular function; or a cosmetic for improving muscular function. The Platycodon grandiflorum extract of the present invention increases muscle formation by inducing muscular protein synthesis and muscle cell differentiation. Therefore, the extract is a natural product so as to be used safely without side effects, thereby being usable as an active ingredient of a pharmaceutical, food, or cosmetic composition exhibiting an excellent effect in preventing and treating muscle diseases or improving muscular function.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: March 30, 2021
    Assignee: NEWTREE CO., LTD.
    Inventors: Jae-Kwan Hwang, Mi-Bo Kim, Changhee Kim, Doun Kim, Heechul Chung
  • Publication number: 20210066455
    Abstract: A semiconductor device including an active region protruding from an upper surface of a substrate and extending in a first horizontal direction, at least two gate electrodes extending in a second horizontal direction and crossing the active region, the second horizontal direction crossing the first horizontal direction, a source/drain region in the active region between the gate electrodes may be provided. The source/drain region includes a recess region, an outer doped layer on an inner wall of the recess region, an intermediate doped layer on the outer doped layer, and an inner doped layer on the intermediate doped layer and filling the recess region. One of the outer doped layer or the intermediate doped layer includes antimony, and the inner doped layer includes phosphorous.
    Type: Application
    Filed: March 17, 2020
    Publication date: March 4, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Junghan LEE, Changhee KIM, Kihwan KIM, Suhyueon PARK, Jaehong CHOI
  • Patent number: 10576057
    Abstract: The present invention relates to a composition for preventing and treating muscle diseases or improving muscular function, containing, as an active ingredient, at least one selected from the group consisting of morusin, kuwanon G, and a Mori Cortex Radicis extract. The Mori Cortex Radicis extract, morusin, or kuwanon G, according to the present invention, has an effect of remarkably enhancing muscular function by increasing the expression of p-mTOR protein involved in muscular protein synthesis, inhibiting the expression of mRNAs of MuRF-1 and atrogin-1 involved in muscular protein degradation, and increasing the expression of mRNAs of MyoD and myogenin involved in muscular differentiation. In addition, the present invention is a natural product so as to be used safely without side effects, thereby being usable in drugs, food, or cosmetics.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 3, 2020
    Assignee: NEWTREE CO., LTD.
    Inventors: Jae-Kwan Hwang, Mi-Bo Kim, Changhee Kim, Doun Kim, Heechul Chung
  • Patent number: 10559673
    Abstract: A semiconductor device includes an active pillar on a substrate. A first source/drain region is disposed at a top end of the active pillar and has a greater width than the active pillar. A first insulating layer is disposed on a sidewall of the active pillar and a second insulating layer is disposed on at least a bottom surface of the first source/drain region. A gate electrode is disposed on the first insulating layer and the second insulating layer. A second source/drain region is disposed in the substrate at a bottom end of the active pillar. Methods of fabrication are also described.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: February 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungil Park, Changhee Kim, Yunil Lee, Mirco Cantoro, Junggun You, Donghun Lee
  • Patent number: 10446621
    Abstract: A display and degradation sensing method, includes a display panel having a plurality of pixels that each comprise an Organic Light Emitting Diode (OLED) and Thin Film Transistor (TFT). The pixels are divided into multiple pixel groups of two or more pixels, each connected to different data lines but to the same gate and sensing lines. A gate driving circuit supplies a scan control signal to the gate line. A data driving circuit selectively supplies turn-on driving data voltage and turn-off data voltage to the data lines in sync with the scan control signal; a sensing circuit outputs (i) a first sensing value based upon an OLED threshold voltage of a sensing pixel, and (ii) a second sensing value based upon a kickback current. A sensing value correction circuit determines a final sensing value for the OLED threshold voltage based on the first sensing value and the second sensing value.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: October 15, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Changhee Kim, Hyemin Park
  • Publication number: 20190189778
    Abstract: A semiconductor device includes an active pillar on a substrate. A first source/drain region is disposed at a top end of the active pillar and has a greater width than the active pillar. A first insulating layer is disposed on a sidewall of the active pillar and a second insulating layer is disposed on at least a bottom surface of the first source/drain region. A gate electrode is disposed on the first insulating layer and the second insulating layer. A second source/drain region is disposed in the substrate at a bottom end of the active pillar. Methods of fabrication are also described.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungil PARK, Changhee KIM, Yunil LEE, Mirco CANTORO, Junggun YOU, Donghun LEE
  • Patent number: 10256324
    Abstract: A semiconductor device includes an active pillar on a substrate. A first source/drain region is disposed at a top end of the active pillar and has a greater width than the active pillar. A first insulating layer is disposed on a sidewall of the active pillar and a second insulating layer is disposed on at least a bottom surface of the first source/drain region. A gate electrode is disposed on the first insulating layer and the second insulating layer. A second source/drain region is disposed in the substrate at a bottom end of the active pillar. Methods of fabrication are also described.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungil Park, Changhee Kim, Yunil Lee, Mirco Cantoro, Junggun You, Donghun Lee
  • Publication number: 20180248018
    Abstract: A semiconductor device includes an active pillar on a substrate. A first source/drain region is disposed at a top end of the active pillar and has a greater width than the active pillar. A first insulating layer is disposed on a sidewall of the active pillar and a second insulating layer is disposed on at least a bottom surface of the first source/drain region. A gate electrode is disposed on the first insulating layer and the second insulating layer. A second source/drain region is disposed in the substrate at a bottom end of the active pillar. Methods of fabrication are also described.
    Type: Application
    Filed: July 31, 2017
    Publication date: August 30, 2018
    Inventors: Sungil Park, Changhee Kim, Yunil Lee, Mirco Cantoro, Junggun You, Donghun Lee
  • Publication number: 20180193396
    Abstract: The present invention relates to a composition for preventing and treating muscle diseases or improving muscular function, containing a Platycodon grandiflorum extract. More specifically, the present invention relates to: a pharmaceutical composition for preventing and treating muscle diseases, containing a Platycodon grandiflorum extract; a food composition for preventing muscle diseases or improving muscular function; or a cosmetic for improving muscular function. The Platycodon grandiflorum extract of the present invention increases muscle formation by inducing muscular protein synthesis and muscle cell differentiation. Therefore, the extract is a natural product so as to be used safely without side effects, thereby being usable as an active ingredient of a pharmaceutical, food, or cosmetic composition exhibiting an excellent effect in preventing and treating muscle diseases or improving muscular function.
    Type: Application
    Filed: May 26, 2016
    Publication date: July 12, 2018
    Inventors: Jae-Kwan Hwang, Mi-Bo Kim, Changhee Kim, Doun Kim, Heechul Chung
  • Publication number: 20180153852
    Abstract: The present invention relates to a composition for preventing and treating muscle diseases or improving muscular function, containing, as an active ingredient, at least one selected from the group consisting of morusin, kuwanon G, and a Mori Cortex Radicis extract. The Mori Cortex Radicis extract, morusin, or kuwanon G, according to the present invention, has an effect of remarkably enhancing muscular function by increasing the expression of p-mTOR protein involved in muscular protein synthesis, inhibiting the expression of mRNAs of MuRF-1 and atrogin-1 involved in muscular protein degradation, and increasing the expression of mRNAs of MyoD and myogenin involved in muscular differentiation. In addition, the present invention is a natural product so as to be used safely without side effects, thereby being usable in drugs, food, or cosmetics.
    Type: Application
    Filed: November 27, 2017
    Publication date: June 7, 2018
    Inventors: Jae-Kwan HWANG, Mi-Bo KIM, Changhee KIM, Doun KIM, Heechul CHUNG
  • Publication number: 20180061913
    Abstract: A display and degradation sensing method, includes a display panel having a plurality of pixels that each comprise an Organic Light Emitting Diode (OLED) and Thin Film Transistor (TFT). The pixels are divided into multiple pixel groups of two or more pixels, each connected to different data lines but to the same gate and sensing lines. A gate driving circuit supplies a scan control signal to the gate line. A data driving circuit selectively supplies turn-on driving data voltage and turn-off data voltage to the data lines in sync with the scan control signal; a sensing circuit outputs (i) a first sensing value based upon an OLED threshold voltage of a sensing pixel, and (ii) a second sensing value based upon a kickback current. A sensing value correction circuit determines a final sensing value for the OLED threshold voltage based on the first sensing value and the second sensing value.
    Type: Application
    Filed: August 24, 2017
    Publication date: March 1, 2018
    Inventors: Changhee KIM, Hyemin PARK
  • Patent number: 9449560
    Abstract: An organic light emitting display includes a display panel including a plurality of pixels, each of the plurality of pixels including an organic light emitting diode (OLED) and a driving thin film transistor (TFT) to control an emission amount of the OLED, the plurality of pixels connected to respective sensing lines; and at least one sensing unit connected to a corresponding one of the pixels through the respective sensing line, the at least one sensing unit configured to sense an amount of carriers accumulated in a parasitic capacitor of the OLED of the corresponding one of the pixels when a driving current flows in the OLED, the at least one sensing unit thereby sensing a degradation of the OLED.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: September 20, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Hyemi Oh, Hunki Shin, Changhee Kim
  • Patent number: 9396675
    Abstract: A method for sensing degradation of an organic light emitting display includes an initialization step for applying a sensing data voltage to a gate node of a driving TFT and applying an initialization voltage to a source node of the driving TFT, a boosting step for floating the gate node and the source node of the driving TFT and applying a drain-to-source current of the driving TFT to an organic element, a sensing step for again applying the initialization voltage to the source node of the driving TFT, setting a gate-to-source voltage of the driving TFT depending on a degradation degree of the organic element, and storing the drain-to-source current of the driving TFT determined by the set gate-to-source voltage in a line capacitor, and a sampling step for outputting a voltage stored in the line capacitor as a sensing voltage.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: July 19, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Changhee Kim, Kilhwan Oh, Hunki Shin
  • Publication number: 20160071445
    Abstract: A method for sensing degradation of an organic light emitting display includes an initialization step for applying a sensing data voltage to a gate node of a driving TFT and applying an initialization voltage to a source node of the driving TFT, a boosting step for floating the gate node and the source node of the driving TFT and applying a drain-to-source current of the driving TFT to an organic element, a sensing step for again applying the initialization voltage to the source node of the driving TFT, setting a gate-to-source voltage of the driving TFT depending on a degradation degree of the organic element, and storing the drain-to-source current of the driving TFT determined by the set gate-to-source voltage in a line capacitor, and a sampling step for outputting a voltage stored in the line capacitor as a sensing voltage.
    Type: Application
    Filed: December 29, 2014
    Publication date: March 10, 2016
    Inventors: Changhee KIM, Kilhwan OH, Hunki SHIN
  • Publication number: 20160012798
    Abstract: An organic light emitting display includes a display panel including a plurality of pixels, each of the plurality of pixels including an organic light emitting diode (OLED) and a driving thin film transistor (TFT) to control an emission amount of the OLED, the plurality of pixels connected to respective sensing lines; and at least one sensing unit connected to a corresponding one of the pixels through the respective sensing line, the at least one sensing unit configured to sense an amount of carriers accumulated in a parasitic capacitor of the OLED of the corresponding one of the pixels when a driving current flows in the OLED, the at least one sensing unit thereby sensing a degradation of the OLED.
    Type: Application
    Filed: December 29, 2014
    Publication date: January 14, 2016
    Applicant: LG Display Co., Ltd.
    Inventors: Hyemi OH, Hunki SHIN, Changhee KIM
  • Patent number: 7619187
    Abstract: Disclosed herein is a porous ceramic heating element wherein 0.08 to 1.00 wt % of a foaming agent is added in 99.00 to 99.92 wt % of a mixture of an inorganic material, a binder, a conductive material, a hardener, a bonding agent and a dispersion medium and mixed with the mixture. The bonding strength of porous foam formed in the ceramic heating element is increased, thereby providing an effect that the entire structure is hardened.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: November 17, 2009
    Inventors: Changhee Kim, Taehee Kim