Patents by Inventor In-Yong Hwang

In-Yong Hwang 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: 10690835
    Abstract: An optical member and a display device including the same. The optical member includes a light guide plate including a surface disposed on a plane defined by a first direction and a second direction crossing the first direction, a low refractive index pattern disposed on the surface of the light guide plate and including an opening for exposing the surface of the light guide plate, a wavelength conversion layer disposed on the low refractive index pattern, and a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive index pattern at least one side portion. The low refractive index pattern has a lower index of refraction than the light guide plate, and a ratio of an area occupied by the low refractive index pattern to an area of the surface of the light guide plate decreases in the first direction.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 23, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Yong Hwang, Young Min Park, Ju Young Yoon, Sung Kyu Shim, Sang Won Lee
  • Publication number: 20200191884
    Abstract: Provided is a method of measuring a magnitude of magnetization of a perpendicular magnetic thin film, including: forming a stripe pattern in which a first magnetic domain that extends in a y direction and is magnetized in a z direction and a second magnetic domain that extends in the y direction and is magnetized in a direction opposite to the z direction are arranged alternately in an x direction, in a perpendicular magnetic thin film that extends in an xy plane; changing widths in the x direction, of the first and second magnetic domains by applying a magnetic field having a predetermined magnitude, in the z direction, to the perpendicular magnetic thin film; and calculating an absolute value of the magnetization of the perpendicular magnetic thin film on the basis of a ratio between the widths in the x direction, of the first magnetic domain and the second magnetic domain.
    Type: Application
    Filed: November 18, 2019
    Publication date: June 18, 2020
    Applicants: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, KOREA BASIC SCIENCE INSTITUTE
    Inventors: Kyoung-Woong Moon, Chan Yong Hwang, Byoung-Chul Min, Seung-young Park
  • Publication number: 20200149800
    Abstract: A built-in refrigerator which includes a body; a door configured to open and close an inside of the body; a hinge configured to connect the body with the door; and a wire cover unit configured to guide a wire drawn from the body while a portion thereof slides according to an opening and closing of the door.
    Type: Application
    Filed: January 16, 2020
    Publication date: May 14, 2020
    Inventors: Min-kyu KIM, In-yong HWANG, Joong-ho KIM, Jong-kyoung BOK, Yong-man SEO, Ho-june JEON
  • Publication number: 20200132908
    Abstract: A backlight unit includes a light guide plate, a low refractive layer disposed on the light guide plate, an optical conversion layer disposed on the low refractive layer, a light source adjacent to a side surface of the light guide plate, and a plurality of optical patterns disposed under the light guide plate, extending in a first direction intersecting the side surface, and disposed in a second direction intersecting the first direction. When viewed a plan view in the first direction, each of the optical patterns have a quadrilateral shape.
    Type: Application
    Filed: July 29, 2019
    Publication date: April 30, 2020
    Inventors: Byung-seo YOON, Seong-yong HWANG, Jonghwan KIM, Sung-kyu SHIM
  • Publication number: 20200119344
    Abstract: The present disclosure relates to a negative electrode material including, as an active material, silicon flakes with a hyperporous structure, represented by the following chemical formula 1: xSi.(1?x)A??(1) where 0.5?x?1.0, and A is an impurity, and includes at least one compound selected from the group consisting of Al2O3, MgO, SiO2, GeO2, Fe2O3, CaO, TiO2, Na2O K2O, CuO, ZnO, NiO, Zr2O3, Cr2O3 and BaO, and a preparing method of the silicon flakes.
    Type: Application
    Filed: August 18, 2017
    Publication date: April 16, 2020
    Applicants: LG CHEM, LTD., UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Eui-Yong HWANG, Soo-Jin PARK, Jae-Geon RYU, Jang-Bae KIM, Jong-Hyun CHAE, Dong-Ki HONG
  • Publication number: 20200057185
    Abstract: An optical member includes a light guide plate, a first low refractive layer, a wavelength conversion layer, and a passivation layer. The first low refractive layer is disposed on the light guide plate. A refractive index of the first low refractive layer is smaller than a refractive index of the light guide plate. The wavelength conversion layer is disposed on the first low refractive layer. The passivation layer is disposed on the wavelength conversion layer. The passivation layer covers a side surface of the wavelength conversion layer and a side surface of the first low refractive layer on at least one side.
    Type: Application
    Filed: October 23, 2019
    Publication date: February 20, 2020
    Inventors: Seong Yong Hwang, Jin Ho Park, Tae Gil Kang, Hyuk Hwan Kim, Sang Won Lee, Jae Jin Choi
  • Patent number: 10563904
    Abstract: A built-in refrigerator which includes a body; a door configured to open and close an inside of the body; a hinge configured to connect the body with the door; and a wire cover unit configured to guide a wire drawn from the body while a portion thereof slides according to an opening and closing of the door.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: February 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-kyu Kim, In-yong Hwang, Joong-ho Kim, Jong-kyoung Bok, Yong-man Seo, Ho-june Jeon
  • Patent number: 10551030
    Abstract: Disclosed is a display device that can uniformly transmit light emitted from a light source to the entire display panel without using a light guide plate. The display device includes a display panel, a backlight assembly supplying light to the display panel, and a lower cover receiving the backlight assembly. The backlight assembly includes a light source, a circuit board mounted with the light source, and a reflection cover coupled to the circuit board to reflect light emitted from the light source and formed of a bendable plate type member.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: February 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung-Min Kim, Sung-Kyu Shim, Yong-Hoon Kwon, Do Hun Kim, Dong Hyeon Lee, Seung Hwan Chung, Seung-Hwa Ha, Se Ki Park, Seong-Yong Hwang, You Ra Kim
  • Patent number: 10545278
    Abstract: An optical member includes a light guide plate in which light incident thereto is propagated, including: an emission surface through which propagated light exits the light guide plate, a light incident side surface through which the light is incident to the light guide plate, and an inclined edge surface connecting the emission and light incident side surfaces to each other; and a wavelength conversion layer to which exited light from the light guide plate is incident and which converts a wavelength of the exited light, disposed facing the emission surface of the light guide plate. The inclined edge surface and emission surfaces define a boundary therebetween, and a side surface of the wavelength conversion layer which is closest to the light incident side surface is further from the light incident side surface than the boundary between the inclined edge surface and the emission surface.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: January 28, 2020
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Sang Won Lee, Seong Yong Hwang, Hye Eun Park, Sung Kyu Shim
  • Publication number: 20190391314
    Abstract: An optical member includes a light guide plate, a wavelength conversion layer, and a reflective tape. The wavelength conversion layer is disposed on an upper surface of the light guide plate. The reflective tape includes a first side portion covering first side surfaces of the light guide plate and the wavelength conversion layer. The reflective tape includes a first surface and a second surface. The first surface is configured to reflect light of a first wavelength band and light of a second wavelength band different from the first wavelength band. The second surface is configured to absorb the light of the first wavelength band.
    Type: Application
    Filed: April 3, 2019
    Publication date: December 26, 2019
    Inventors: Do Hun KIM, Ji Eun NAM, Young Min PARK, You Jin SEO, Hyeon Mi LEE, Hyeon Seon JEONG, Taek Sun SHIN, Seong Yong HWANG
  • Publication number: 20190391317
    Abstract: Provided are an optical member, a display device including the same, and method for fabricating the optical member. The optical sheet includes an adhesive layer; and an optical pattern in contact with a first surface of the adhesive layer; and a release film in contact with a second surface of the adhesive layer, opposite to the first surface, wherein the optical pattern comprises a first pattern extending in a first direction, and a plurality of second patterns formed on the first pattern, wherein the first pattern comprises peak portions having a largest thickness and depressed portions having a smallest thickness, and the adhesive layer comprises a third pattern of recesses respectively aligned with the depressed portions of the first pattern, and a fourth pattern of recesses respectively aligned with the plurality of second patterns.
    Type: Application
    Filed: May 2, 2019
    Publication date: December 26, 2019
    Inventors: Jae Sul AN, Jong Hwan KIM, Seong Yong HWANG
  • Publication number: 20190345606
    Abstract: A deposition equipment is provided. The deposition equipment includes: a reaction chamber including an upper plate and a container body, the upper plate including a gas supplier for injecting a processing gas; a wafer chuck including an upper surface on which a wafer is loaded, in the reaction chamber, with the upper surface of the wafer chuck facing the upper plate; and a processing gas shielding section which prevents the processing gas from being adsorbed to the upper surface of the wafer chuck and is disposed between the upper plate and the wafer chuck in a state in which the wafer is removed from the wafer chuck. The processing gas shielding section includes a shutter which is plate-like, and the shutter includes a region including a gas discharge section for jetting a purging gas toward the wafer chuck.
    Type: Application
    Filed: April 17, 2019
    Publication date: November 14, 2019
    Inventors: Sun Yong Hwang, Hyun Su Kim, Eun-Ok Lee, Taek Jung Kim, Hyo Jung Noh, Ji Won Yu
  • Patent number: 10472586
    Abstract: A lubricating coating composition and a compressor including a sliding member coated with the lubricating coating composition. The lubricating coating composition includes a thermosetting or thermoplastic polyimide-based resin as a binder, a solid lubricant, various solvents, and other additives at a controlled ratio. The compressor includes a first member including a first sliding surface and a second member moving relative to the first member including a second sliding surface. The lubricating coating composition is applied to the first sliding surface or the second sliding surface.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: November 12, 2019
    Assignee: HANON SYSTEMS
    Inventors: Seung Yong Hwang, Joon Hee Moon, Eun Gi Son, Jae Wook Joo, Jae Hyun Hur, Kye Young Lee
  • Patent number: 10456224
    Abstract: The present invention relates to a method of guiding a dental implant treatment plan, a device and a recording medium therefore. The method of guiding a dental implant treatment plan according to the invention, by providing a guide to the area where the implant object is to be placed, the effects of reducing the complexity of the implant plan and decreasing procedure deviations depending on individual to individual can be achieved.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: October 29, 2019
    Assignee: OSSTEMIMPLANT CO., LTD.
    Inventors: Kyoo Ok Choi, Tae Hwan Kim, Seung Yong Hwang, Seong Yun Lee
  • Publication number: 20190324187
    Abstract: An optical member and a display device including the same. The optical member includes a light guide plate including a surface disposed on a plane defined by a first direction and a second direction crossing the first direction, a low refractive index pattern disposed on the surface of the light guide plate and including an opening for exposing the surface of the light guide plate, a wavelength conversion layer disposed on the low refractive index pattern, and a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive index pattern at least one side portion. The low refractive index pattern has a lower index of refraction than the light guide plate, and a ratio of an area occupied by the low refractive index pattern to an area of the surface of the light guide plate decreases in the first direction.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: Seong Yong HWANG, Young Min PARK, Ju Young YOON, Sung Kyu SHIM, Sang Won LEE
  • Patent number: 10435571
    Abstract: The present invention relates to a method for preparing carbon nanotubes which are capable of more effectively preparing carbon nanotubes having a uniform and fine size, and a dispersion composition of carbon nanotubes obtained using the same. The method for preparing carbon nanotube comprises the steps of: forming a dispersion comprising carbon nanotube bundles, a dispersant and a solvent; and enabling the dispersion to consecutively pass through a high pressure homogenizer, wherein the dispersant is a mixture of plural kinds of polyaromatic hydrocarbon oxides, and the carbon nanotube bundles are pulverized or disentangled while passing through a microchannel of the high pressure homogenizer under a shear force to form carbon nanotubes.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: October 8, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Kwon Nam Sohn, Kil Sun Lee, Won Jong Kwon, Su Jin Park, Byung Hun Oh, Eui Yong Hwang, Seung Bo Yang, Kwang Hyun Yoo, Mi Jin Lee
  • Patent number: 10416501
    Abstract: A display device and a manufacturing method of a display device are provided. The display device comprises: an optically functional layer including a wavelength conversion material; a display panel disposed on the optically functional layer and having at least one side which protrudes outward from an edge of the optically functional layer; and a sealing member surrounding a side surface of the optically functional layer and disposed such that at least a portion of the sealing member is in contact with a lower surface of the protruding portion of the display panel, wherein the sealing member includes a light shielding material that substantially blocks visible light.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: September 17, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Soo Shin, Jun Hee Son, Wee Joon Jeong, Seong Yong Hwang
  • Publication number: 20190250322
    Abstract: Provided are display device and method of manufacturing a display device. a display device includes: a light guide plate; a low refractive layer disposed on one surface of the light guide plate and having a lower refractive index than a refractive index of the light guide plate; a wavelength conversion layer disposed on the low refractive layer; an optical pattern disposed on the other surface of the light guide plate and including a base film, a first pattern disposed on the base film and having a line shape extending in one direction, and a second pattern formed on a surface of the first pattern; and an adhesive layer disposed between the light guide plate and the base film, wherein the adhesive layer has a refractive index equal to or greater than the refractive index of the light guide plate.
    Type: Application
    Filed: October 1, 2018
    Publication date: August 15, 2019
    Inventors: Seong Yong HWANG, Jin Ho PARK, Seung Beom PARK, Sung Chan JO
  • Patent number: 10371881
    Abstract: An optical member including a light guide plate including a surface disposed on a plane defined by a first direction and a second direction crossing the first direction, a low refractive index pattern disposed on the surface of the light guide plate and including an opening for exposing the surface of the light guide plate, a wavelength conversion layer disposed on the low refractive index pattern, and a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive index pattern at least one side portion. The low refractive index pattern has a lower index of refraction than the light guide plate, and a ratio of an area occupied by the low refractive index pattern to an area of the surface of the light guide plate decreases in the first direction.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Yong Hwang, Young Min Park, Ju Young Yoon, Sung Kyu Shim, Sang Won Lee
  • Publication number: 20190239396
    Abstract: The present invention provides an inverter including: a middle frame in which a main circuit is disposed; an upper case disposed above the middle frame and configured to accommodate the main circuit; and a lower case disposed under the middle frame and having a first vent hole formed in one side surface thereof; a fan disposed at the other side surface of the lower case facing the first vent hole; a heat sink interposed between the first vent hole and the fan; an auxiliary housing disposed under the lower case, configured to accommodate an auxiliary circuit, and including a second vent hole in at least one side surface thereof; and a controller disposed in the main circuit of the auxiliary circuit.
    Type: Application
    Filed: June 12, 2018
    Publication date: August 1, 2019
    Inventor: Soo-Yong Hwang