Patents by Inventor Chang-Hoon Lee

Chang-Hoon 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).

  • Method of displaying an image and display device for performing the same
    Patent number: 10116912
    Abstract: A method of display an image and a display device for performing the same are disclosed. In one aspect, the method includes receiving image data for a content image, determining a modulation region and a peripheral region in the content image and generating a left-eye content image and a right-eye content image based on the image data for the content image such that the modulation region has a three-dimensional depth. The method further includes displaying the left-eye content image and the right-eye content image and periodically changing the three-dimensional depth of the modulation region by changing a modulation distance between the modulation region in the left-eye content image and the modulation region in the right-eye content image based at least in part on a periodic modulation reference timing.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: October 30, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Hoon Lee, Hak-Sun Kim, Jong-In Baek, Yi-Joon Ahn
  • Oil pump control valve
    Patent number: 10107412
    Abstract: The present invention relates to an oil pump control valve that can linearly control the pressure of oil by resolving the internal residual pressure thereof and can be mounted on the exterior of a cylinder block, thereby enhancing maintenance efficiency. The oil pump control valve comprises a valve that controls the entrance and exit of oil and a solenoid that operates the valve.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 23, 2018
    Assignee: UNICK CORPORATION
    Inventors: Chang-Hoon Lee, Kuk-Chan Moon, Ji-Hoon Park, Mun-Hak Kim
  • ELECTROLYTE FOR LITHIUM-SULFUR BATTERY AND LITHIUM-SULFUR BATTERY COMPRISING SAME
    Publication number: 20180248227
    Abstract: The present invention relates to an electrolyte solution for a lithium-sulfur battery and a lithium-sulfur battery including the same. The electrolyte solution for a lithium-sulfur battery according to the present invention exhibits excellent stability, and may improve a swelling phenomenon by suppressing gas generation during lithium-sulfur battery operation.
    Type: Application
    Filed: January 18, 2017
    Publication date: August 30, 2018
    Applicant: LG CHEM, LTD.
    Inventors: In Tae PARK, Sung Won HONG, Charles Kiseok SONG, You Hwa OHK, Doo Kyung YANG, Chang Hoon LEE
  • SOLENOID VALVE
    Publication number: 20180180194
    Abstract: A solenoid valve includes a valve that regulates the entrance and exit of oil, and a solenoid that operates the valve. The valve includes a hollow holder extending in one direction, ports including a supply port, a control port, and a discharge port, a passage that is formed in the holder and extends in the longitudinal direction of the holder, wherein a chamber connecting the supply port and the discharge port is formed in the middle of the passage, a spool movably installed in the passage, a channel that is formed in the spool and has one end connected to the control port and the other end connected to the chamber, a control land that divides the chamber into a supply chamber and a discharge chamber, and a spring that is installed between the holder and the spool to elastically support the spool.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 28, 2018
    Inventors: Chang-Hoon Lee, Eui-Dong Roh, Jeong-Tae Kim, Chan-Shik Ahn, Tae-Hyeon Kim
  • LEAD WIRE CONNECTOR AND SOLENOID VALVE INCLUDING SAME
    Publication number: 20180006397
    Abstract: The present inventive concept relates to a lead wire connector and a solenoid valve including the same, the lead wire connector preventing the inflow of foreign substances containing water, facilitating a layout design for coupling and separation, and being conveniently transported and stored. The lead wire connector comprises: an insulation block protruding to the outside of a solenoid; a power terminal provided inside the insulation block and electrically connected to the solenoid; a lead wire connected to the power terminal and extended to the outside of the insulation block; a wire tube encompassing at least a part of the lead wire; and a connector provided at the end of the lead wire. In addition, the solenoid valve includes the solenoid operated according to whether electric power is applied thereto.
    Type: Application
    Filed: October 8, 2015
    Publication date: January 4, 2018
    Inventors: Chang-Hoon LEE, Kuk-Chan MOON, Ji-Hoon PARK, Mun-Hak KIM, Jun-Hyo PARK
  • STEEL CONTAINING FILM TYPE RETAINED AUSTENITE
    Publication number: 20170369966
    Abstract: The present invention relates to a steel having a microstructure composed of bainite and retained austenite, wherein the area ratio of the retained austenite 10% or more, and the retained austenite is composed of a film type retained austenite whose length is more than 3 times the width and a block type retained austenite whose length is less than 3 times the width, and wherein the area of the film type retained austenite is 60% or more of the total area of the retained austenite. The steel of the present invention can exhibit excellent strength and elongation.
    Type: Application
    Filed: June 27, 2017
    Publication date: December 28, 2017
    Inventor: Chang-Hoon Lee
  • OVERLAY MARKS, METHODS OF FORMING THE SAME, AND METHODS OF FABRICATING SEMICONDUCTOR DEVICES USING THE SAME
    Publication number: 20170278745
    Abstract: In a method of fabricating a semiconductor device, a substrate including a circuit area and an overlay mark area is provided. Conductive gate patterns are formed on the substrate in the circuit area such that the overlay mark area is free of the gate patterns, and conductive contact patterns are formed on the substrate between the gate patterns in the circuit area. A mirror pattern is formed on the substrate in the overlay mark area, where the mirror pattern and the contact patterns comprising a same reflective material. Related semiconductor devices, overlay marks, and fabrication methods are also discussed.
    Type: Application
    Filed: June 13, 2017
    Publication date: September 28, 2017
    Inventors: Jong-Su Kim, Dong-Woon Park, Tae-Hoi Park, Yong-Kug Bae, Tae-Hwan Oh, Chang-Hoon Lee, Boo-Hyun Ham
  • Method for preparing aromatic carbonate
    Patent number: 9765013
    Abstract: A method for preparing an aromatic carbonate, of the present invention, comprises the steps of: (A) preparing a reaction mixture containing an aliphatic carbonate by reacting an organometallic compound and carbon dioxide; and (B) preparing an aromatic carbonate by reacting the reaction mixture and an aromatic alcohol. The method for preparing an aromatic carbonate allows an aromatic carbonate to be economically prepared in a high yield by using carbon dioxide as a carbonyl supply source.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: September 19, 2017
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Chang Hoon Lee, Dong Baek Kim, Yeon Ju Lee, O Sung Kwon, Il Hwan Yang
  • Overlay marks, methods of forming the same, and methods of fabricating semiconductor devices using the same
    Patent number: 9711395
    Abstract: In a method of fabricating a semiconductor device, a substrate including a circuit area and an overlay mark area is provided. Conductive gate patterns are formed on the substrate in the circuit area such that the overlay mark area is free of the gate patterns, and conductive contact patterns are formed on the substrate between the gate patterns in the circuit area. A mirror pattern is formed on the substrate in the overlay mark area, where the mirror pattern and the contact patterns comprising a same reflective material. Related semiconductor devices, overlay marks, and fabrication methods are also discussed.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: July 18, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Su Kim, Dong-Woon Park, Tae-Hoi Park, Yong-Kug Bae, Tae-Hwan Oh, Chang-Hoon Lee, Boo-Hyun Ham
  • OIL PUMP CONTROL VALVE
    Publication number: 20170152962
    Abstract: The present invention relates to an oil pump control valve that can linearly control the pressure of oil by resolving the internal residual pressure thereof and can be mounted on the exterior of a cylinder block, thereby enhancing maintenance efficiency. The oil pump control valve comprises a valve that controls the entrance and exit of oil and a solenoid that operates the valve.
    Type: Application
    Filed: June 29, 2015
    Publication date: June 1, 2017
    Inventors: Chang-Hoon LEE, Kuk-Chan MOON, Ji-Hoon PARK, Mun-Hak KIM
  • 4-SUBSTITUTED-2-(5-SUBSTITUTED-1H-INDOL-2-YL)PHENOL DERIVATIVES, METHODS FOR PREPARING THE PHENOL DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS FOR INHIBITING CELL PROLIFERATION AND MIGRATION INCLUDING THE PHENOL DERIVATIVES
    Publication number: 20170129879
    Abstract: Disclosed are 4-substituted-2-(5-substituted-1H-indol-2-yl)phenol derivatives for controlling the proliferation and migration of kinase-overexpressed cells. The phenol derivatives are represented by Formula 1: wherein X is selected from the group consisting of hydrogen, halogen, a cyano group, a trifluoromethyl (CF3) group, an amidine (C(?NH)NH2) group, and a 5-methyl-1,2,4-oxadiazole group, Y is selected from the group consisting of hydrogen, halogen, a phenyl group substituted with one or two substituents selected from the group consisting of halogen, methoxy, nitro, trifluoromethyl, and aminomethyl, CO—R?, COOR?, OH, O—R?, and NH—R?, each R? is independently selected from the group consisting of C1-C18 alkyl, alkenyl, alkynyl, and —Z-alkyl (wherein Z is a heteroatom selected from the group consisting of O, S, and N or is —(CH2)m—), and m is an integer from 0 to 5.
    Type: Application
    Filed: October 17, 2016
    Publication date: May 11, 2017
    Applicants: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Youngjoo BYUN, Chang Hoon LEE
  • Stereoscopic image display device and operating method thereof
    Patent number: 9621881
    Abstract: A display device may include a signal controller to use a received image signal to generate sectional image signals, to determine a sequence for displaying sectional images that respectively correspond to the sectional image signals, and to use the sectional image signals to generate an image data signal. The sectional images may include a top left image, a bottom left image, a top right image, and a bottom right image. The device may further include a display panel to display the sectional images according to data signals generated based on the image data signal and according to the sequence. The sectional images may be portions of a whole image that has a size substantially equal to a display area of the display panel.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: April 11, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang Hoon Lee, Won Sang Park, Jong-In Baek
  • IMAGE PROCESSING METHOD AND IMAGE PROCESSING DEVICE FOR PERFORMING THE SAME
    Publication number: 20170069296
    Abstract: An image processing method and image processing device for performing the same are disclosed. In one aspect, the image processing method includes transmitting a content image having a visual condition to a display unit. The method also includes periodically changing the visual condition from a first visual condition to a second visual condition according to a modulation timing such that the content image to be displayed after the modulation timing has the second visual condition different from the first visual condition before commencement of the modulation timing.
    Type: Application
    Filed: November 18, 2016
    Publication date: March 9, 2017
    Inventors: Chang-Hoon Lee, II-Nam Kim, Jong-In Baek, Yi-Joon Ahn, Won-Sang Park
  • Image processing method and image processing device for performing the same
    Patent number: 9552795
    Abstract: An image processing method and image processing device for performing the same are disclosed. In one aspect, the image processing method includes transmitting a content image having a visual condition to a display unit. The method also includes periodically changing the visual condition from a first visual condition to a second visual condition according to a modulation timing such that the content image to be displayed after the modulation timing has the second visual condition different from the first visual condition before commencement of the modulation timing.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: January 24, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Hoon Lee, Il-Nam Kim, Jong-In Baek, Yi-Joon Ahn, Won-Sang Park
  • Biphenyl derivative, pharmaceutically acceptable salt thereof, and methods for preventing or treating inflammatory diseases or autoimmune diseases
    Patent number: 9522873
    Abstract: The present invention relates to a novel biphenyl derivative or a pharmaceutically acceptable salt thereof, a pharmaceutical composition for preventing or treating inflammatory diseases or autoimmune diseases comprising the same as an active ingredient, and methods for treating inflammatory disease or autoimmune diseases with the pharmaceutical composition. Novel biphenyl derivatives according to the present invention promote the phagocytosis of macrophages and inhibit the chemotaxis to exhibit excellent inflammation terminating and anti-inflammatory effects and thus can be effectively used as therapeutic agents for inflammatory diseases or autoimmune diseases.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: December 20, 2016
    Assignee: Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Chang Hoon Lee, Kyeong Lee
  • Method of operating an electronic device providing a bioeffect image
    Patent number: 9524703
    Abstract: A method of operating an electronic device includes displaying a first image, extracting a user-interested region from a region including the first image, and displaying a bioeffect image at the user-interested region. The first image and bioeffect image are different images.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: December 20, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Hoon Lee, IL-Nam Kim, Jong-In Baek, Yi-Joon Ahn
  • Oil pump control valve
    Patent number: 9470122
    Abstract: An oil pump control valve assembly includes a control valve for controlling a flow of a fluid, and a solenoid for operating the control valve. The control valve includes a tube-like holder having a hollow internal space, configured to include an inflow port formed at one end thereof, a tube-like first valve sheet formed in the middle of the holder, a ball valve mounted in the first valve sheet, a second valve sheet coupled to a second end of the first valve sheet, and a load mounted in the second valve sheet, one end thereof being extended through the second valve sheet to come into contact with the ball valve, wherein, when the solenoid is operated, the ball valve is moved to open the inflow port.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: October 18, 2016
    Assignee: UNICK CORPORATION
    Inventors: Chang Hoon Lee, Eui Dong Roh, Ji Hoon Park
  • Location recognition apparatus and method
    Patent number: 9438863
    Abstract: A position recognition apparatus and method for determining the position of an object by using a camera are provided. The object may include a controllable light source, and the position recognition apparatus may store identification information of the object. The position recognition apparatus may obtain a spatial image by capturing an image of a place where the object is located, may extract the position of the object by processing the spatial image, and may correlate the extracted position with the object, thereby completing a position map.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: September 6, 2016
    Assignee: NULSOM INC.
    Inventor: Chang-Hoon Lee
  • Method for Preparing Aromatic Carbonate
    Publication number: 20160237019
    Abstract: A method for preparing an aromatic carbonate, of the present invention, comprises the steps of: (A) preparing a reaction mixture containing an aliphatic carbonate by reacting an organometallic compound and carbon dioxide; and (B) preparing an aromatic carbonate by reacting the reaction mixture and an aromatic alcohol. The method for preparing an aromatic carbonate allows an aromatic carbonate to be economically prepared in a high yield by using carbon dioxide as a carbonyl supply source.
    Type: Application
    Filed: January 16, 2014
    Publication date: August 18, 2016
    Inventors: Chang Hoon LEE, Dong Baek KIM, Yeon Ju LEE, O Sung KWON, Il Hwan YANG
  • HIGH-STRENGTH STEEL SHEET WITH EXCELLENT COMBINATION OF STRENGTH AND DUCTILITY, AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20160186286
    Abstract: The present disclosure relates to a production of a high-strength steel sheet with excellent combination of strength and ductility, and a method of manufacturing the same. In accordance with a method of manufacturing a high-strength steel sheet, the method may include: heating a steel sheet which can have a residual austenite upon cooling, to form an austenite; primary cooling the austenitized steel sheet to T1 for a bainite region and subjecting to a primary isothermal transformation; and secondary cooling the primary isothermal transformed steel sheet to T2, which is lower than T1 by 50° C. ore more, for a bainite region, and subjecting to a secondary isothermal transformation.
    Type: Application
    Filed: December 16, 2015
    Publication date: June 30, 2016
    Inventor: Chang-Hoon LEE