Patents by Inventor Yong An Hwang

Yong An 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).

  • Light source unit fixing reflection sheet and display apparatus including the same
    Patent number: 9804443
    Abstract: A display apparatus includes plural light source units each including a light emitting device and a lens portion; a reflection sheet defining plural holes thereof and into which the light source units are respectively disposed; and a display panel on the reflection sheet. The lens portion defines: a body portion; and plural side protruding portions and respectively at opposing sides of the body portion in a first direction in a top plan view. The hole of the reflection sheet is defined by: an edge of a first hole; an edge of a second hole facing the first hole in a second direction crossing the first direction, the second hole larger than the first hole; and slanted edges connecting the first hole to the second hole. In a fixed state of the reflection sheet, a predetermined area of the reflection sheet adjacent to the slanted edges overlaps the side protruding portions.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: October 31, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-yong Hwang, Byung-seo Yoon, Yong-hwi Kim, Minjeong Kim, Hyunjin Maeng, Kisoo Park, Soonick Jang
  • METHOD FOR PRODUCING HOLLOW CARBON CAPSULES
    Publication number: 20170305082
    Abstract: The present invention relates to a method of producing hollow carbon capsules which can simply and effectively produce hollow carbon capsule by using polymer particles as soft templates and using a spray-drying method.
    Type: Application
    Filed: September 30, 2015
    Publication date: October 26, 2017
    Inventors: In Young KIM, Jin Yeong LEE, Kwon Nam SOHN, Eui Yong HWANG, Won Jong KWON
  • Linear Vibrator
    Publication number: 20170288519
    Abstract: A linear vibrator includes a bracket having a plate shape, a casing having a hexahedral shape with an open bottom and coupled to the bracket, a circuit board on the bracket, a coil on the circuit board, a pair of magnets spaced apart from each other and disposed over the coil at an interval from the coil, a plate having a pair of magnet attachment surfaces attached to top surfaces of the pair of magnets and a connection surface downwardly bent with a step difference from the magnet attachment surfaces and connecting the pair of magnet attachment surfaces, a weight on top of the plate, and a spring on top of the connection surface and formed in a strip shape with two ends secured to the casing and a center portion secured to the connection surface. The spring is bilateral symmetric and has at least a pair of inwardly-bent portions.
    Type: Application
    Filed: April 4, 2017
    Publication date: October 5, 2017
    Inventors: Jong Dae Kim, Keun Yong Hwang
  • Method and apparatus for performing retransmission operation in device to device communication system
    Patent number: 9768933
    Abstract: A method for performing by a mobile station (MS) a retransmission operation in a device to device (D2D) communication system is provided. The method includes performing a data communication with a peer MS using a D2D communication, receiving feedback information for a retransmission operation for data which is transmitted to the peer MS which is transmitted using a resource block mapped to identification information of a D2D connection from the peer MS, determining whether there is need for retransmission of the data based on the feedback information received from the peer MS, and if there is need for the retransmission of the data, retransmitting the data to the peer MS.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: September 19, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Pil-Yong Hwang
  • Display device comprising the same
    Patent number: 9752753
    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: March 4, 2013
    Date of Patent: September 5, 2017
    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
  • LED light source package
    Patent number: 9722155
    Abstract: Provided is a LED light source package comprising a circuit board, a light source seated on an upper portion of the circuit board, and a lens structure arranged on the upper portion of the circuit board via the light source. A surface that faces the light source in the lens structure includes a first inclined surface that projects toward the light source as going to a center portion of the lens structure.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: August 1, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung Seo Yoon, Seong Yong Hwang, Kyung Min Kim, Young Min Park
  • Anode active material for lithium secondary battery, preparation method thereof, and lithium secondary battery comprising the same
    Patent number: 9711787
    Abstract: Provided are an anode active material including carbon-based particles, silicon nanowires grown on the carbon-based particles, and a carbon coating layer on surfaces of the carbon-based particles and the silicon nanowires, and a method of preparing the anode active material. Since the anode active material of the present invention is used in a lithium secondary battery, physical bonding force between the carbon-based particles and the silicon nanowires may not only be increased but conductivity may also be improved. Thus, lifetime characteristics of the battery may be improved.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: July 18, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Jung Woo Yoo, Won Jong Kwon, Eui Yong Hwang, Kil Sun Lee, Je Young Kim, Yong Ju Lee
  • METHOD AND APPARATUS FOR REUSING ACCESS STRATUM CONTEXT THROUGH UNIQUE BASE STATION IDENTIFIER, AND METHOD AND APPARATUS FOR RESUMING RADIO RESOURCE CONTROL (RRC) CONNECTION BY USING THE SAME
    Publication number: 20170202051
    Abstract: Provided is a method for resuming, by a first base station, a radio resource control (RRC) connection suspended by a second base station. The first base station receives an RRC connection resume request message including a first identifier and a resume identifier for identifying the second base station from a terminal. The first base station identifies the second base station using the first identifier. Further, the first base station acquires access stratum (AS) context information matching the resume identifier from the second base station, using the resume identifier.
    Type: Application
    Filed: January 11, 2017
    Publication date: July 13, 2017
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Hyun-Yong HWANG
  • Display device
    Patent number: 9696588
    Abstract: A display device includes an optical member, a display panel disposed on the optical member, and a plurality of light emitting units disposed under the optical member, the optical member comprising, a diffusion layer, and a reflectivity control layer which is disposed under the diffusion layer and reflects a light provided from the light emitting units, including a first base material, reflective materials dispersed in the first base material, a plurality of first portions corresponding to the plurality of light emitting units, and a second portion disposed adjacent to the first portions, where each of the plurality of first portions comprises a greater amount of the reflective materials than the second portion, when a first portion and a second portion represent a unit area having a predetermined size.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: July 4, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Juhwa Ha, Seong-Yong Hwang, Dohun Kim, Young-Min Park, Yongkyu Kang, Byung-Seo Yoon, Juyoun Son
  • Metal oxide semiconductor gas sensor having nanostructure and method for manufacturing same
    Patent number: 9689785
    Abstract: Disclosed is a metal oxide semiconductor gas sensor having a nanostructure, the metal oxide semiconductor gas sensor including: a substrate; a first electrode formed on the substrate; a gas sensing layer provided on the first electrode, made of a metal oxide semiconductor which has a nanostructure and of which electrical conductivity changes when the metal oxide semiconductor reacts with gas to be sensed, and formed by oblique angle deposition; a second electrode formed on the metal oxide semiconductor; and a control unit for measuring the electrical conductivity of the gas sensing layer to sense the gas by applying a predetermined amount of current through the first and the second electrodes.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: June 27, 2017
    Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Jong Kyu Kim, Hyun Ah Kwon, Sun Yong Hwang
  • Power amplifier having stack structure
    Patent number: 9680427
    Abstract: A power amplifier having a stack structure comprises a first driver stage that receives a power voltage from a power supply and receives and amplifies an input signal; a second driver stage that receives the power voltage from the power supply, has an input terminal connected with an output terminal of the first driver stage, and receives and amplifies an output signal from the first driver stage; and a power stage that has a power input terminal connected with a ground terminal of the first driver stage and a ground terminal of the second driver stage and receives a virtual ground voltage, and has an input terminal connected with an output terminal of the second driver stage and receives and amplifies an output signal from the second driver stage.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: June 13, 2017
    Assignee: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARK
    Inventors: Ho Yong Hwang, Chang Kun Park
  • Lamp for vehicle
    Patent number: 9677735
    Abstract: A lamp for a vehicle is provided and includes a first lamp module having an interior lens and at least one first light source. The first light source is configured to emit light toward the interior lens. Additionally, a second lamp module is disposed on a first side of the first lamp module and emits light and a third lamp module is disposed on a second side of the first lamp module and emits light and has an emission area that is different from the second lamp module.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: June 13, 2017
    Assignee: SL Corporation
    Inventors: Aaron Hardy, Elke Dieter, Ju Yong Hwang
  • Display device including support frame having reflective stepped portion
    Patent number: 9658487
    Abstract: A display device includes a display panel which displays an image, a backlight unit which generates light and emits the light toward the display panel, a supporting member which supports edge parts of the display panel, and an accommodation member defining an accommodation space in which the backlight unit and the supporting member are disposed. In the accommodation space, the backlight unit includes a light source which generates the light, and a side-emitting lens which covers the light source and through which the light generated by the light source is emitted. In the accommodation space, the supporting member defines a plurality of stepped parts, where the plurality of stepped parts extended toward the light source has a light reflecting characteristic.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byung-seo Yoon, Sanghoon Lee, Seong-yong Hwang
  • REFRIGERATOR
    Publication number: 20170108266
    Abstract: A refrigerator includes a mid-frame positioned on a front surface of the main body wall and a heater configured to heat the mid-frame and provided at the mid-frame. The mid-frame includes a front frame provided to cover at least a part of a front surface of the at least one inner box configured to form the main body wall, and an extension frame formed to extend rearward from the front frame and including an edge portion in which an end portion of the extension frame has a thickness greater than that of an adjacent extension frame.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Bum Kim, Kyung Mok Yoo, Hyun Joo Kim, Kwang Su Heo, Eung Ryeol Seo, In-Yong Hwang, Ji Hoon Choi, Jeong Hoon Kang, Mi Jung Lee
  • Apparatus for cooling inverter
    Patent number: 9622390
    Abstract: An apparatus for cooling inverter is disclosed, whereby an optimum heat radiation effect can be accomplished, because a flow part is divided in response to heat generation amount of an electric element arranged inside a housing to adjust an air flow.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: April 11, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Soo Yong Hwang
  • Apparatus, method and computer readable recording medium for sharing real time video through chatting window of messenger service
    Patent number: 9590932
    Abstract: A method of sharing video through a chatting window of a messenger service includes generating a chatting window according to a request to create the chatting window. The request to create the chatting window is received from one of a plurality of chatting window participants. The chatting window includes a first portion where messages are to be displayed and a second portion where video is to be displayed. The first portion is allocated according to the request to generate the chatting window. A request to share video is received by at least one of the plurality of chatting window participants. The second portion is allocated according to the request to share video. The video is provided by displaying the video in the second portion, where at least one of the chatting window participants accessing the video via the second portion.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: March 7, 2017
    Assignee: Naver Corporation
    Inventors: Jeong Yong Hwang, Jeanie Jung
  • Optical pattern sheet, backlight unit, and liquid crystal display having the same
    Patent number: 9588273
    Abstract: A backlight unit including an optical pattern sheet and a liquid crystal display are provided. The backlight unit includes a light guide plate, a light source portion arranged adjacent to a side surface of the light guide plate to emit light, a mold frame having an extension portion that covers an upper portion of the light source portion and a part of an upper portion of the light guide plate, and an optical pattern sheet arranged on a lower portion of the extension portion to shade or diffuse incident light, wherein the optical pattern sheet includes a base film and an optical pattern portion positioned on the base film.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: March 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Hwa Song, Do Hun Kim, Dong Hoon Kim, Joong Hyun Kim, Sang Hoon Lee, Ji Won Lee, Seong Yong Hwang
  • LAMP FOR VEHICLE
    Publication number: 20170059108
    Abstract: A lamp for a vehicle is provided and includes a first lamp module having an interior lens and at least one first light source. The first light source is configured to emit light toward the interior lens. Additionally, a second lamp module is disposed on a first side of the first lamp module and emits light and a third lamp module is disposed on a second side of the first lamp module and emits light and has an emission area that is different from the second lamp module.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 2, 2017
    Inventors: Aaron Hardy, Elke Dieter, Ju Yong Hwang
  • GRAPHENE-COATED POROUS SILICON-CARBON COMPOSITE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20170047584
    Abstract: Provided are a porous silicon-carbon composite, which includes a core including a plurality of active particles, a conductive material formed on at least a portion of surfaces of the active particles, first pores, and second pores, and a first shell layer which is coated on the core and includes graphene, wherein the active particles include a plurality of silicon particles, silicon oxide particles, or a combination thereof, the first pores are present in the core and are formed by agglomeration of the plurality of active particles, and the second pores are irregularly dispersed and present in the core, has an average particle diameter smaller than an average particle diameter of the active particles, and are spherical, a method of manufacturing the same, and a negative electrode and a lithium secondary battery including the porous silicon-carbon composite.
    Type: Application
    Filed: May 8, 2015
    Publication date: February 16, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Eui Yong HWANG, In Young KIM, Jin Yeong LEE, Won Jong KWON, Kwon Nam SOHN, Seung Bo YANG
  • Light guide plate for backlight and manufacturing method therefor
    Patent number: 9568657
    Abstract: A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: February 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Young Song, Seong-Yong Hwang, Joong-Hyun Kim, Sang-Won Lee, Jin-Sung Choi, Ju-Hwa Ha, Jin Seo, Yong-Kyu Kang