Patents by Inventor Sang-Cheol Lee

Sang-Cheol Lee 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: 9574737
    Abstract: An aspherical lens includes a light entrance plane configured to receive light emitted from a light source and a light exit plane configured to radiate the light received by the light entrance plane. The light exit plane includes semispherical convex portions disposed on an upper surface of the aspherical lens, a concavely depressed portion comprising an overlapping region where the semispherical convex portions partially overlap each other at a central axis, a side portion connected with the semispherical convex portions, and an upper surface of each of the semispherical convex portions having a first flat portion.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: February 21, 2017
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kwang Il Park, Sang Cheol Lee, Jeong A Han, Woong Jun Hwang, Hee Tak Oh
  • Patent number: 9412924
    Abstract: A light emitting diode package having heat dissipating slugs is provided. The light emitting diode package comprises first and second heat dissipating slugs formed of a conductive material and spaced apart from each other; a package main body coupled to the first and second heat dissipating slugs to support the first and second heat dissipating slugs; and a light emitting diode die electrically connected to the first and second heat dissipating slugs, wherein the respective first and second heat dissipating slugs are exposed to the outside through lower and side surfaces of the package main body. As such, the first and second heat dissipating slugs can be used as external leads.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: August 9, 2016
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Tae Won Seo, Sang Cheol Lee, Chan Sung Jung
  • Publication number: 20160209110
    Abstract: Disclosed herein are a refrigerator and a display unit of the refrigerator, in which a sealing member is disposed between a display installation part and a displaying part of a display unit, and thus moisture is prevented from penetrating into the display unit. The refrigerator includes a door assembly which opens and closes an opened front surface of a storage compartment and including an opening provided at a front surface thereof, and a display unit, wherein the display unit includes a display installation part that is inside the door assembly to correspond to the opening and at which a display is installed, a displaying part which is disposed at a front surface of the display installation part and exposed to an outside through the opening, and a sealing member which seals between the display installation part and the displaying part and prevents moisture from penetrating into the display unit.
    Type: Application
    Filed: January 5, 2016
    Publication date: July 21, 2016
    Inventors: Woo Chul Cho, Sang Cheol Lee, Jong Sun Park, Sang-Jin Lee, Sang Gyu Jung
  • Patent number: 9382630
    Abstract: There is provided a zinc alloy coated steel sheet including a vacuum deposited layer capable of improving corrosion resistance and sealer adhesion that are suitable for the use in automobiles, and a process of manufacturing the same. The zinc alloy coated steel sheet includes a zinc coating layer formed on a steel sheet; and a zinc/metal alloy deposited layer formed on the zinc coating layer, wherein the zinc coating layer, and a metal diffusion layer is present in the zinc coating layer.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: July 5, 2016
    Assignee: POSCO
    Inventors: Young-Jin Kwak, Dong-Yoeul Lee, Kyung-Hoon Nam, Sang-Cheol Lee, Yong-Hwa Jung, Woo-Sung Jung, Sang-Hoon Park, Tae-Yeob Kim, Gwang-Seok Kim
  • Patent number: 9372615
    Abstract: An apparatus and a method for a touch screen in an electronic device. The method includes determining whether a constant touch input is detected. The method also includes, when a constant touch input is detected, determining whether an input of an additional key button of the device is detected. The method further includes, when the input of the additional key button is detected, performing a second function that is different than a first function of the additional key button. Since a separate new additional function may be intuitively performed besides a unique function of the additional key button by pressing the touch screen and the additional key button together, user convenience of the device increases.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: June 21, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-Cheol Lee
  • Patent number: 9330253
    Abstract: An apparatus and method for improving the security of an application package from a user abnormally acquiring a system supreme authority in a portable terminal are provided. The apparatus includes an application manager for, at application package generation, collecting data for package generation, performing a compiling process for the collected data, encrypting an execution file of the application package among the compiled data, and packaging the compiled data comprising the encrypted execution file.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: May 3, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Cheol Lee, Seung-Hwan Lee
  • Patent number: 9296903
    Abstract: Provided is a film formation composition for improving the blackening of the surface of a steel sheet, particularly, the surface of a steel sheet containing Mg on the surface thereof, such as a Mg sheet, a plated steel sheet having a plated layer comprising Mg, and the like, a steel sheet comprising a film formed by the composition, and a method for forming the film. Provided are a film formation composition for preventing the blackening of the surface of the steel sheet, comprising: 2.5-7.5 parts by weight of a water-soluble phenoxy resin; 0.1-0.5 parts by weight of a fluorometal acid; 0.1-0.5 parts by weight of a metal compound; and 1-5 parts by weight of a cross-linking agent.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: March 29, 2016
    Assignees: POSCO, NOROO COIL COATINGS CO., LTD.
    Inventors: Young-Jin Kwak, Dong-Yun Kim, Woo-Sung Jung, Kyung-Hoon Nam, Dong-Yoeul Lee, Seok-Jun Hong, Tae-Yeob Kim, Yong-Hwa Jung, Mun-Jong Eom, Myoung-Hee Choi, Gab-Yong Kim, Sang-Hoon Park, Sang-Cheol Lee, Yang-Woo Nam
  • Patent number: 9292669
    Abstract: A method inputs a password in an electronic apparatus. In the method, whether an authentication number input request corresponding to a password exists is determined. When the authentication number input request exists, a screen for requiring input of an authentication query number and a corresponding authentication number is displayed. Whether the input authentication number and the input authentication query number match with each other is determined. When they match with each other, relevant approval screen or a relevant function is entered. Since a specific authentication number with respect to a specific authentication query number among a plurality of authentication query numbers is used with a general number or character in a combined manner, a password may be kept safe even when exposed and so use convenience is provided.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: March 22, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sang-Cheol Lee
  • Publication number: 20160051940
    Abstract: Provided is a separation membrane for seawater desalination and a method for manufacturing the same, and more particularly, a separation membrane for seawater desalination with excellent water permeability and salt rejection and a method for manufacturing the same. If the separation membrane for seawater desalination and the method for manufacturing the same according to the present disclosure are applied, it is possible to provide a separation membrane for seawater desalination with excellent water permeability and salt rejection. Therefore, it is possible to provide a separation membrane for seawater desalination with improved performance in comparison to an existing separation membrane for seawater desalination. As a result, water resources may be widely utilized.
    Type: Application
    Filed: March 31, 2014
    Publication date: February 25, 2016
    Applicants: KOREA WATER RESOURCES CORPORATION, IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY, INDUSTRY-ACADEMIC COOPERATION FOUNDATION OF KYUNGNAM UNIVERSITY
    Inventors: Ho Bum PARK, Hyo Won KIM, Hee Dae LEE, Sang-Seek BAE, Seung Hyun KIM, Geung Jeon HAN, Sang Cheol LEE
  • Patent number: 9267203
    Abstract: Provided is a continuous coating apparatus which can supply a liquid coating material (a molten metal) to a levitation-heating space through various paths, and can easily control a supply flow rate of the liquid coating material, and has a simplified structure. The continuous coating apparatus includes: a vacuum chamber unit through which a coating target passes; a levitation-heating unit disposed in the vacuum chamber unit and generating an evaporation vapor by vaporizing a supplied coating material; and a liquid coating material supply unit connected so that a liquid coating material is supplied to at least one of an upper portion and a lower portion of the levitation-heating unit, and communicating with the outside of the vacuum chamber unit.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: February 23, 2016
    Assignee: POSCO
    Inventors: Kyung-Hoon Nam, Young-Jin Kwak, Dong-Yoeul Lee, Tae-Yeob Kim, Yong-Hwa Jung, Kyoung-Bo Kim, Woo-Sung Jung, Mun-Jong Eom, Sang-Cheol Lee, Sang-Hoon Park
  • Publication number: 20160028094
    Abstract: Provided is a solid oxide fuel cell having longitudinal and lateral channels in an electronic separator plate. A solid oxide fuel cell includes a unit cell formed by stacking a cathode, electrolyte, and an anode, a separator plate having channels in both surfaces thereof, wherein reaction gas flows through the channels, and the channels include longitudinal channels parallel to a flow direction of the reaction gas, and lateral channels crossing the flow direction of the reaction gas, and a collector disposed between the unit cell and the separator plate. The longitudinal channels increase in width from a reaction gas inflow hole to a reaction gas outflow hole.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 28, 2016
    Applicant: Posco Energy Co., Ltd.
    Inventors: Hyeon Min Son, Sang-Cheol Lee, Byung Geun Kuk, Sang Gyun Park, Sang Hyun Park
  • Patent number: 9184363
    Abstract: Disclosed is a generator. The generator in accordance with an embodiment of the present invention includes: a thermoelectric element, which creates an electromotive force by using a temperature difference between a high-temperature portion and a low-temperature portion; a heat source, which is thermally coupled to the high-temperature portion and transfers heat to the high-temperature portion; and a vibrating capillary-shaped heat-pipe, which has a working fluid injected therein, is thermally coupled to the low-temperature portion, and discharges heat of the low-temperature portion. The generator in accordance with the present invention can increase an efficiency of power generation using the thermoelectric element by employing a highly exothermic vibrating capillary-shaped heat-pipe to maintain the temperature difference required for power generation.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: November 10, 2015
    Assignee: Icepipe Corporation
    Inventor: Sang-Cheol Lee
  • Publication number: 20150245166
    Abstract: A method of performing communication by a first electronic device is provided. The method includes receiving an input for communication with a third electronic device, determining at least one of a first communication module of the first electronic device and a second communication module of a second electronic device for the communication with the third electronic device, and controlling the first or second communication module for the communication with the third electronic device in response to the input.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 27, 2015
    Inventors: Sang-Cheol LEE, Kyu-Hyun KIM, Soon-Hyun CHA, Sang-Min BAE
  • Publication number: 20150204510
    Abstract: An aspherical lens includes a light entrance plane configured to receive light emitted from a light source and a light exit plane configured to radiate the light received by the light entrance plane. The light exit plane includes semispherical convex portions disposed on an upper surface of the aspherical lens, a concavely depressed portion comprising an overlapping region where the semispherical convex portions partially overlap each other at a central axis, a side portion connected with the semispherical convex portions, and an upper surface of each of the semispherical convex portions having a first flat portion.
    Type: Application
    Filed: March 30, 2015
    Publication date: July 23, 2015
    Inventors: Kwang Il PARK, Sang Cheol Lee, Jeong A Han, Woong Jun Hwang, Hee Tak Oh
  • Patent number: 9077814
    Abstract: An apparatus and method for adjusting the volume in a portable terminal. The apparatus includes an information collection unit and a volume adjustment unit. The information collection unit collects noise judgment information that is used for judging the extent of background noise. The volume adjustment unit estimates background noise using the collected information, and adjusts the volume according to the background noise.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: July 7, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sang-Cheol Lee
  • Patent number: 9022618
    Abstract: Exemplary embodiments of the present invention relate to an aspherical light emitting diode (LED) lens and a light emitting device including the same. The aspherical LED lens includes a light exit plane concavely depressed near a central axis, a light entrance plane including a conical plane having a vertex located on the central axis, and a plurality of protrusions arranged on a portion of a side surface of the light exit plane. The aspherical LED lens has a radially symmetrical structure with respect to the central axis.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: May 5, 2015
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kwang Il Park, Sang Cheol Lee, Jeong A Han, Woong Jun Hwang, Hee Tak Oh
  • Patent number: 8997303
    Abstract: Wiper device is disclosed. a wiper device includes a wiper blade tightly contacted to a windshield and configured to wipe a foreign substance and an adaptor connecting the wiper blade to a wiper arm, wherein the adaptor includes a body rotatably connected to the wiper blade about an axle formed in a traverse direction of the wiper blade, and a connector extended in a lengthwise direction of the wiper blade and having one end that is connected to the wiper arm and the other end that is hinge-connected to the body. Since it is possible to adjust the wiper arm and the wiper blade in various angles, the wiper blade can be tightly contacted to the windshield and thus have a superior wiping performance.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: April 7, 2015
    Assignee: CAP Corporation
    Inventors: Kyoung-Joon Song, Sang-Cheol Lee
  • Patent number: D733332
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: June 30, 2015
    Assignee: Icepipe Corporation
    Inventor: Sang-Cheol Lee
  • Patent number: D733333
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: June 30, 2015
    Assignee: Icepipe Corporation
    Inventor: Sang-Cheol Lee
  • Patent number: D740737
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: October 13, 2015
    Assignee: CAP Corporation
    Inventors: Seung Chul Hyun, Sang Cheol Lee