Patents by Inventor Hyung-ki An

Hyung-ki An 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).

  • Patent number: 10814307
    Abstract: A super absorbent polymer according to the present invention has fast absorption rate while having high permeability and suction power, and thus is preferably used for hygienic materials such as diapers and can exhibit excellent performance.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: October 27, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Seong Beom Heo, Yeon Woo Hong, Hyung Ki Yoon, Bo Hyun Seong, Su Jin Kim, Tae Hwan Jang, Jun Kyu Kim
  • Patent number: 10795077
    Abstract: A display apparatus includes a display panel, a light guide plate disposed behind the display panel, the light guide plate being lengthwise or widthwise smaller than the display panel, a light source disposed adjacent to a first lateral surface of the light guide plate and irradiates light onto the first lateral surface, a back chassis disposed behind the light guide plate and supports a back surface of the light guide plate and a support structure disposed along a second lateral surface of the light guide plate different from the first lateral surface of the light guide plate. Further, the support structure includes light blocking protrusion that blocks a portion of the second lateral surface.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-hee Jeon, Dae-young Kim, Hyung-ki Kim, Gong-hee Lee, Duk-jin Jeon, Jai-ho Jeong
  • Patent number: 10773237
    Abstract: The present invention relates to a method for preparing a super absorbent polymer exhibiting improved liquid permeability, gel strength, absorption rate and the like while maintaining excellent absorption performance. The method for preparing the super absorbent polymer comprises the steps of: carrying out a crosslinking polymerization of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups in the presence of an internal crosslinking agent to form a hydrogel polymer including a cross-linked polymer; drying, pulverizing, and classifying the hydrogel polymer to form a base polymer powder; and surface-crosslinking the base polymer powder by using a surface crosslinking liquid containing a surface crosslinking agent of an alkylene carbonate having 2 to 5 carbon atoms, in the presence of hydrophobic silica particles having a water-contact angle of more than 10° and 150° or less and hydrophilic silica particles having a water-contact angle of 10° or less.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: September 15, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hyung Ki Yoon, Dae Woo Nam, Hyemin Lee, Chang Sun Han, Sung Jong Seo
  • Patent number: 10768359
    Abstract: A display apparatus including a display panel configured to display an image, a light source module including a plurality of light sources, a light guide plate configured to guide light generated by the light source module to the display panel, and a coupling member including a first surface configured to support the light guide plate, a second surface configured to support the light source module, the second surface being disposed opposite the first surface, and a support provided between the first surface and the second surface and configured to support the light guide plate spaced apart from the light source module.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Bin Kim, Dae Young Kim, Hyung-Ki Kim, Kil Hong Lee, Duk Jin Jeon
  • Patent number: 10766021
    Abstract: Disclosed is a propylene direct oxidation reaction catalyst capable of preparing a propylene oxide from propylene and oxygen at a higher yield than catalysts prepared by conventional methods, by applying a specific transition metal oxide promoter in preparation of a catalyst containing silver, a transition metal oxide promoter and a carrier through a slurry process. The present invention provides a propylene direct oxidation reaction catalyst, which is a supported silver catalyst used for preparing a propylene oxide from the propylene direct oxidation reaction, the catalyst including a molybdenum oxide and a tungsten oxide as a catalyst promoter.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: September 8, 2020
    Assignees: Lotte Chemical Corporation, Seoul National University R&DB Foundation
    Inventors: Joong Won Lee, Hyung Ki Min, Young Jong Seo, In Kyu Song, Eo Jin Lee, Jong Heop Yi
  • Patent number: 10760141
    Abstract: An oriented electrical steel sheet includes Ba at about 0.005 wt % to about 0.5 wt % inclusive, Y at about 0.005 wt % to about 0.5 wt % inclusive, or a composite of Ba and Y at about 0.005 wt % to about 0.5 wt % inclusive, the remainder including Fe and impurities, based on 100 wt % of a total composition of a base steel sheet thereof.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: September 1, 2020
    Assignee: POSCO
    Inventors: Hyung Don Joo, Hyung-Ki Park, Jin-Wook Seo, Kyu-Seok Han, Jae-Soo Lim, Hyun-Seok Ko
  • Patent number: 10749192
    Abstract: A hydrogen consumption measuring method for a fuel cell system includes steps of: calculating an amount of hydrogen consumed for a representative section from a first pressure at a time when hydrogen is supplied into an anode and a second pressure at a time when the hydrogen is no longer supplied to the anode; and calculating a total amount of hydrogen consumed by accumulating amounts of hydrogen consumed from a plurality of sections.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: August 18, 2020
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Se Kwon Jung, Ho June Bae, Ji Hyun Shim, Hyung Ki Kim
  • Patent number: 10732339
    Abstract: A display apparatus includes a display panel, a light guide plate disposed behind the display panel and configured to guide light to the display panel, a light source configured to irradiate light to at least one side of the light guide plate, a diffusion plate disposed between the display panel and the light guide plate, and at least one diffusion plate support member coupled to the light guide plate and configured to support the diffusion plate. The light guide plate includes an optical pattern arranged in a light emitting surface facing the diffusion plate and at least one insertion hole for receiving the at least one diffusion plate support member. The optical pattern includes a pattern change region which surrounds at least a portion of the insertion hole.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Duk-jin Jeon, Dae-young Kim, Hyung-ki Kim, Yong-sung Yoo, Kil-hong Lee, Tae-hee Jeon
  • Patent number: 10702874
    Abstract: The present invention relates to an apparatus for recycling waste raw material, capable of melting and recycling, according to size, small-particle waste metal transported by a small-particle waste metal conveyer (411), medium-particle waste metal transported by a medium-particle waste metal conveyer (412), and large-particle waste metal transported by a large-particle waste metal conveyer (413), and of recycling slag transported by a slag conveyer (414) into cover material, thereby recycling resources as well as preventing environmental pollution in advance.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: July 7, 2020
    Assignee: CERAMETAL CO., LTD.
    Inventors: Hyung Ki Kim, Young Ja Kim
  • Publication number: 20200188514
    Abstract: The present invention relates to nanoparticles. In particular, the present invention provides nanoparticles for clinical (e.g., targeted therapeutic), diagnostic (e.g., imaging), and research applications in the field of cardiology. For example, in some embodiments, the present invention provides a method of treating (e.g., ablating) cardiac tissue, comprising: a) contacting an animal with a nanoparticle comprising a matrix, a toxic (e.g., ablative) agent (e.g., sonosensitizer, chemotherapeutic agent (e.g., doxorubicin or cisplatin), or photosensitizer), and a cardiac targeting moiety; and b) administering an activator of the toxic agent (e.g., light, chemical (e.g., pharmaceutical agent) or ultrasound) to at least a portion of the cardiac tissue (e.g., heart) of the animal to activate the toxic agent.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 18, 2020
    Inventors: Jerome Kalifa, Raoul Kopelman, Uma Mahesh R. Avula, Gwangseong Kim, Yong-Eun Koo Lee, Hyung Ki Yoon
  • Patent number: 10677978
    Abstract: A display device is provided, which includes a display panel, a light guide plate disposed in a rear of the display panel, a light source disposed adjacent to a light-incident surface of the light guide plate and configured to radiate light toward the light-incident surface of the light guide plate, and a holder disposed along a light-facing surface of the light guide plate, the light-facing surface of the light guide plate opposing the light-incident surface of the light guide plate, the holder including a supporting portion that supports a light-emitting surface of the light guide plate, the light-emitting surface of the light guide plate disposed between the light-incident surface and the light-facing surface, wherein the supporting portion of the holder has a first light reflecting surface that faces the light-facing surface of the light guide plate.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: June 9, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kil-hong Lee, Dae-young Kim, Hyung-ki Kim, Yong-sung Yoo, Duk-jin Jeon, Tae-hee Jeon
  • Publication number: 20200166194
    Abstract: A display apparatus includes: a display panel; a light source configured to supply light to the display panel; and a diffuser plate configured to diffuse the light supplied to the display panel. The diffuser plate includes: a first diffusion layer comprising a plurality of concave portions in a first surface of the first diffusion layer; a light converter provided in each concave portion of the plurality of concave portions; and a second diffusion layer configured to cover the first surface of the first diffusion layer.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 28, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kil Hong Lee, Dae Young Kim, Hyung Ki Kim, Yong Sung Yoo, Duk Jin Jeon, Tae Hee Jeon
  • Patent number: 10649135
    Abstract: A display apparatus is provided. The display apparatus includes a display panel; a light guide plate configured to guide light to the display panel and disposed behind the display panel; a light source configured to emit light to a lateral surface of the light guide plate; a diffusion plate disposed between the display panel and the light guide plate; and at least one support member configured to support the diffusion plate and disposed to pass through the light guide plate, wherein a light transmittance of a portion of the at least one support member at a side of the support member facing the light source is different from a light transmittance of a remaining portion of the at least one support member.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: May 12, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-ki Kim, Dae-young Kim, Yong-sung Yoo, Kil-hong Lee, Duk-jin Jeon, Tae-hee Jeon
  • Publication number: 20200131920
    Abstract: According to the present invention, part of carbon dioxide heated by a heater is supplied to a dry gas seal portion of a compressor so that a device for pressurizing and heating a seal gas is not additionally required, configuration can be simplified and cost can be reduced. In addition, a seal gas flow path includes a low-temperature seal gas flow path and a high-temperature seal gas flow path so that, in an initial driving mode, carbon dioxide heated by a high-temperature portion of the heater is used as a seal gas and in a turbine-driving mode, carbon dioxide heated by a low-temperature portion of the heater is used as a seal gas and thus a more efficient operation can be performed.
    Type: Application
    Filed: June 26, 2019
    Publication date: April 30, 2020
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jun Hyun CHO, Bong Su CHOI, Ho Sang RA, Hyung Ki SHIN, Jong Jae CHO, Beom Joon LEE, Chul Woo ROH, Gil Bong LEE, Young Jin BAIK
  • Publication number: 20200122119
    Abstract: The super absorbent polymer according to the present invention has reduced 3-hour saline solution re-wet while having a high absorption rate and absorption against pulp, and thus can be used for hygienic materials such as diapers, thereby exhibiting excellent performance.
    Type: Application
    Filed: December 28, 2016
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Ji Yoon Jeong, Jun Kyu Kim, Dae Woo Nam, Tae Hwan Jang, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Seong Beom Heo, Seon Jung Jung, Hyung Ki Yoon
  • Publication number: 20200095885
    Abstract: The present invention provides a partial admission operation turbine apparatus comprising: a rotor portion rotatably coupled to a rotary shaft of a turbine and including a plurality of rotor blades; a nozzle portion fixedly coupled to the rotary shaft in front of the rotor portion and guiding and supplying a working fluid to the rotor blades through a plurality of nozzle blades; and an inlet disk coupled to the rotary shaft in front of the nozzle portion in a plate shape and having a plurality of admission holes formed therein so as to supply the working fluid to the nozzle portion to partially admit the working fluid into the nozzle portion, wherein each of the admission holes is formed to have a different passage cross-sectional areas, so that the opening and closing of the admission holes are controlled according to operating flow rate conditions to control a partial admission ratio of the working fluid supplied to the nozzle portion.
    Type: Application
    Filed: November 1, 2017
    Publication date: March 26, 2020
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Hyung Ki SHIN, Jun Hyun CHO, Young Jin BAIK, Gil Bong LEE, Beom Joon LEE, Chul Woo ROH, Ho Sang RA, Jong Jae CHO
  • Publication number: 20200083891
    Abstract: Disclosed is a phase-locked loop which alternately operates in a sleep state and an active state. A frequency-divided output signal of the phase-locked loop is synchronized with a frequency-divided reference signal. When the phase-locked loop switches from a sleep state to an active state, a frequency of the frequency-divided output signal is identical to a frequency of a frequency-divided output signal which has been synchronized in a previous active state. Information corresponding to the frequency of the frequency-divided output signal which has been synchronized in the previous active state is stored in a memory device.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 12, 2020
    Applicant: Anapass Inc.
    Inventors: Hyung Ki HUH, Dong Joon LEE
  • Patent number: 10550230
    Abstract: A preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby are provided. The preparation method of the superabsorbent polymer according to the present disclosure prevents polymer particles from being broken or the surface thereof from being damaged during preparation and handling of the superabsorbent polymer, thereby providing a superabsorbent polymer having excellent absorption properties and permeability.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 4, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yong Hun Lee, Hyung Ki Yoon, Chang Sun Han, Jung Min Sohn
  • Patent number: 10545282
    Abstract: A display includes a display panel for displaying an image; a backlight including a light guide plate disposed behind the display panel for outputting light to the display panel, and a light source that irradiates the light to a first side surface of the light guide plate; and a holder for supporting the display panel and the light guide plate and to have a concave portion that exposes at least a portion of a second side surface of the light guide plate positioned to be opposite to the first side surface of the light guide plate.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: January 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-ki Kim, Dae-young Kim, Yong-sung Yoo, Kil-hong Lee, Duk-jin Jeon, Tae-hee Jeon
  • Patent number: 10533553
    Abstract: A single-stage compressor including one compressing unit, includes: a housing having a compressing chamber formed therein and including a suction port, which is located in one side of the compressing chamber and into which a working fluid enters, and an injection port, which is located on the compressing chamber to be spaced apart from the suction port by a predetermined distance and into which an intermediate-pressure working fluid is injected; and an intermediate-pressure valve installed on an intermediate-pressure fluid flow path on which the intermediate-pressure working fluid moves and configured to control supply of the intermediate-pressure working fluid so that the intermediate-pressure working fluid is supplied to the injection port in response to an intermediate pressure of the compressing chamber.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: January 14, 2020
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Gil Bong Lee, Young Soo Lee, Beom Joon Lee, Ho Sang Ra, Young Jin Baik, Jun Hyun Cho, Hyung Ki Shin