Patents by Inventor Hyuk Yoon

Hyuk Yoon 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: 10379442
    Abstract: According to an aspect of the present invention, there is provided a method of manufacturing a graphene film, the method including: preparing a catalyst metal having at least a surface on which graphene is formed; forming a support layer on the graphene; and isolating the graphene and the support layer from the catalyst metal by dipping the catalyst metal in an electrolytic solution perpendicularly to a liquid surface of the electrolytic solution when a voltage is applied to the catalyst metal.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: August 13, 2019
    Assignee: HANWHA AEROSPACE CO., LTD.
    Inventors: Duck-Hwa Na, Eun-Kyu Lee, Jong-Hyuk Yoon
  • Publication number: 20190237515
    Abstract: The present application relates to an optical filter and an organic light-emitting display device. The optical filter of the present application has excellent omnidirectional antireflection performance and color characteristics on the side as well as the front, and the optical filter can be applied to an organic light-emitting device to improve visibility.
    Type: Application
    Filed: October 24, 2017
    Publication date: August 1, 2019
    Inventors: Jong Hyun JUNG, Sergey BELYAEV, Sun Kug KIM, Moon Soo PARK, Hyuk YOON
  • Publication number: 20190214084
    Abstract: A variably resistive memory device may include a memory cell array and a control circuit block. The memory cell array may include a plurality of word lines, a plurality of bit lines and a plurality of memory cells. The memory cell array may also include memory layers connected between the word lines and the bit lines. The control circuit block may include a read/write circuit and a bit line control circuit. The read/write circuit may be configured to provide a selected bit line among the plurality of bit lines with a read voltage or a write voltage. The bit line control circuit may be connected with the read/write circuit and the bit lines to control a bit line voltage inputted into the selected bit line based on a location at which a selected memory cell is electrically connected to the selected bit line.
    Type: Application
    Filed: September 24, 2018
    Publication date: July 11, 2019
    Applicant: SK hynix Inc.
    Inventors: Ki Won LEE, Jung Hyuk YOON
  • Publication number: 20190198101
    Abstract: A phase change memory device may be provided. The phase change memory device may include a plurality of Mats, a row control block and a column control block. The row control block may be provided to each of the Mats to control word lines. The column control block may be provided to each of the Mats to control bit lines. When a near phase change memory cell adjacent to the row control block and the column control block is selected, the phase change memory cells located at different positions, which may be spaced apart from the near phase change memory cell, in the Mats except for a reference Mat may be selected.
    Type: Application
    Filed: March 4, 2019
    Publication date: June 27, 2019
    Applicant: SK hynix Inc.
    Inventor: Jung Hyuk YOON
  • Publication number: 20190198102
    Abstract: A semiconductor memory apparatus includes a column address decoding unit configured to decode a column address and generate a column select signal; a row address decoding unit configured to decode a row address and generate a word line select signal; a driving driver unit configured to provide different voltages to a plurality of resistive memory elements in response to the column select signal; a sink current control unit configured to generate a plurality of sink voltages with different voltage levels in response to the word line select signal; and a plurality of current sink units configured to flow current from the plurality of respective resistive memory elements to a ground terminal in response to the plurality of sink voltages.
    Type: Application
    Filed: March 4, 2019
    Publication date: June 27, 2019
    Applicant: SK hynix Inc.
    Inventors: Jung Hyuk YOON, Yoon Jae SHIN
  • Patent number: 10297313
    Abstract: A phase change memory device may be provided. The phase change memory device may include a plurality of Mats, a row control block and a column control block. The row control block may be provided to each of the Mats to control word lines. The column control block may be provided to each of the Mats to control bit lines. When a near phase change memory cell adjacent to the row control block and the column control block is selected, the phase change memory cells located at different positions, which may be spaced apart from the near phase change memory cell, in the Mats except for a reference Mat may be selected.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: May 21, 2019
    Assignee: SK hynix Inc.
    Inventor: Jung Hyuk Yoon
  • Patent number: 10286498
    Abstract: This invention relates to a lead-free solder alloy composition and a method of preparing a lead-free solder alloy, wherein the lead-free solder alloy composition includes a ceramic powder added to a lead-free solder of Sn-(0.1 to 2) wt % Cu, Sn-(0.5 to 5) wt % Ag, or Sn-(0.1 to 2) wt % Cu-(0.5 to 5) wt % Ag. According to this invention, a novel lead-free solder alloy, which functions as a replacement for a conventional lead-free solder, is provided, thus exhibiting superior spreadability, wettability, and mechanical properties than a conventional lead-free solder.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: May 14, 2019
    Assignee: KYUNG DONG ONE CORPORATION
    Inventors: Ashutosh Sharma, Jae Pil Jung, Jong Hyun Yoon, Bum Gyu Baek, Heung Rak Sohn, Song Hee Yim, Jong Hyuk Yoon
  • Publication number: 20190134953
    Abstract: Provided is a laminated glass, comprising: a soda lime glass; and a non-tempered alkali-free glass bonded to one surface of the soda lime glass, in which a thickness of the soda lime glass is larger than a thickness of the non-tempered alkali-free glass, and an elastic modulus of the non-tempered alkali-free glass is larger than an elastic modulus of the soda lime glass.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 9, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Jun Hak OH, Jae Hyuk YOON, Chang Hee LEE, Byung Kook CHOI
  • Patent number: 10283056
    Abstract: An autostereoscopic 3D image display device using time division is provided. The image display device includes a backlight, an image display panel, a controller, and a viewer position tracking system. The backlight includes a plurality of line sources which are disposed at certain intervals. The image display panel displays a 3D image. The controller controls the backlight and a viewing point image of the image display panel. The viewer position tracking system determines a pupil position of a viewer and transfers position information to the controller. The image display panel provides two or more viewing points. The line sources configure two or more line source sets that are separately driven at the same time. The two or more line source sets are sequentially driven.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: May 7, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Kyu Kim, Ki Hyuk Yoon
  • Patent number: 10249367
    Abstract: A semiconductor memory apparatus includes a column address decoding unit configured to decode a column address and generate a column select signal; a row address decoding unit configured to decode a row address and generate a word line select signal; a driving driver unit configured to provide different voltages to a plurality of resistive memory elements in response to the column select signal; a sink current control unit configured to generate a plurality of sink voltages with different voltage levels in response to the word line select signal; and a plurality of current sink units configured to flow current from the plurality of respective resistive memory elements to a ground terminal in response to the plurality of sink voltages.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: April 2, 2019
    Assignee: SK hynix Inc.
    Inventors: Jung Hyuk Yoon, Yoon Jae Shin
  • Patent number: 10237543
    Abstract: The present invention relates to a device for displaying a multi-view 3D image by using viewing zone expansion that is applicable to multiple observers, and to a method for same, comprising: an image display panel for displaying a 3D image; a control portion for controlling an image view of each 3D pixel line; and a system for tracking the position of the pupils of both eyes of the observer, wherein each of the 3D pixel lines provide at a multi-view of at least four views, and the control portion selects first and second views that are close to the center of each of the pupils of both eyes of the observer for each viewing zone of the view formed by each of the 3D pixel lines and provides one image view from both eyes of the observer to the first view, by using three dimensional coordinates of the position of the pupils of both eyes of the observer that are determined by the system for tracking the position of the pupils of both eyes of the observer.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Kyu Kim, Ki Hyuk Yoon
  • Publication number: 20190078539
    Abstract: An air cleaner is provided. The air cleaner includes an air cleaner body and air cleaner cover that are coupled to each other to form an internal space for mounting a filter and that are clamped and separated through a cover clamp. The filter purifies air that is introduced through a duct inlet into air which is to be discharged through a hose outlet. A filter fixer is formed in the internal space to seat the filter and forms a filter holding force to block swaying of the filter. Additionally, a filter adapter is mounted into or detached from the internal space and is inserted into the internal space to form a filter fixing force for fixing the filter.
    Type: Application
    Filed: May 25, 2018
    Publication date: March 14, 2019
    Inventors: Seong-Youn Kwak, Won-Seop Choi, Ju-Ho Han, Yong-Gyo Seo, Sung-Hyuk Yoon
  • Patent number: 10229768
    Abstract: A method of manufacturing graphene, the method including: preparing a carrier member on which the graphene is formed on one surface thereof; exposing the graphene to dopant vapor to dope the graphene; transferring the doped graphene onto a target member; and removing the carrier member.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 12, 2019
    Assignee: HANWHA AEROSPACE CO., LTD.
    Inventor: Jong-hyuk Yoon
  • Patent number: 10209416
    Abstract: Provided are a polarizing plate and a display. The illustrative polarizing plate may exhibit desired characteristics in a wide range of wavelengths, and have excellent reflection and visibility at an inclined angle. For example, the polarizing plate may be used in a reflective or transflective liquid crystal display or an organic light emitting device.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: February 19, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Byoung Kun Jeon, Moon Soo Park, Hyuk Yoon
  • Patent number: 10210927
    Abstract: A semiconductor memory apparatus includes a column address decoding unit configured to decode a column address and generate a column select signal; a row address decoding unit configured to decode a row address and generate a word line select signal; a driving driver unit configured to provide different voltages to a plurality of resistive memory elements in response to the column select signal; a sink current control unit configured to generate a plurality of sink voltages with different voltage levels in response to the word line select signal; and a plurality of current sink units configured to flow current from the plurality of respective resistive memory elements to a ground terminal in response to the plurality of sink voltages.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: February 19, 2019
    Assignee: SK hynix Inc.
    Inventors: Jung Hyuk Yoon, Yoon Jae Shin
  • Patent number: 10194143
    Abstract: Provided is a autostereoscopic three-dimensional (3D) image display apparatus having a modified sub-pixel structure, including: a display panel on which pixels are arranged; a parallax barrier, a lenticular lens or a linear light source disposed to be spaced apart from the display panel; and a controller generating a 3D image by arranging viewpoint images on the display panel, wherein sub-pixels having the same color are consecutively arranged on the display panel in a horizontal direction, and sub-pixels having red, green, and blue (RGB) colors form one unit pixel in a vertical direction.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: January 29, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Sung Kyu Kim, Ki-Hyuk Yoon
  • Patent number: 10180518
    Abstract: The present invention relates to an optical film, a polarizing plate including the same, and a display device. The exemplary optical film may have a desired wavelength dispersion characteristic using positive and negative uniaxial retardation films satisfying a predetermined condition. In addition, the optical film has a desired wavelength dispersion characteristic, and thus may be utilized in various fields requiring delicate control of optical properties. For example, the optical film can be useful in the polarizing plate used to prevent reflection and ensure visibility in the display device.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: January 15, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Byoung Kun Jeon, Su Young Ryu, Moon Soo Park, Hyuk Yoon
  • Patent number: 10178377
    Abstract: Disclosed is a 3-dimensional image display device, which includes: an image display panel including a plurality of sub-pixels arranged in a lattice pattern; and an optical plate disposed spaced apart from the image display panel and including a plurality of light transmission regions or a backlight panel disposed spaced apart from the image display panel and including a plurality of light emission units, wherein the plurality of light transmission regions or light emission units are inclined from a vertical direction, wherein the image display panel includes: a reference data row which forms a reference viewing zone; and at least one data row which forms an intervening viewing zone, wherein the reference viewing zone includes a plurality of unit reference viewing zones, and wherein the intervening viewing zone includes at least one unit intervening viewing zone located between the unit reference viewing zones adjacent to each other.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: January 8, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Sung Kyu Kim, Ki-hyuk Yoon
  • Publication number: 20180358085
    Abstract: A semiconductor memory apparatus may include a memory cell, a write driver, and a voltage adjustment circuit. The write driver may provide the memory cell with a program current based on a write data. The voltage adjustment circuit may adjust a voltage level of a global word line coupled to the memory cell when a current flowing through the memory cell or the voltage level of the global word line is greater than a threshold value.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Applicant: SK hynix Inc.
    Inventors: Ho Seok EM, Jung Hyuk YOON
  • Patent number: 10129536
    Abstract: The present invention relates to a multi-view three-dimensional (3D) display apparatus including a display panel in which pixels (or subpixels) outputting an image are arranged and a parallax barrier disposed on a front surface of the display panel and including a plurality of apertures, wherein the apertures of the parallax barrier are set according to a Fresnel number.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: November 13, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Sung Kyu Kim, Ki Hyuk Yoon