Patents by Inventor Sang-Hoon Park

Sang-Hoon Park 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).

  • Liquid crystal display having a gate voltage generator for varying gate on/off voltage according to change in temperature
    Patent number: 8736540
    Abstract: A liquid crystal display (LCD) includes: a gate-off voltage generator including a temperature compensation unit which comprises a constant voltage output device and which outputs a gate-off voltage having a level which varies based on a change in ambient temperature; a clock generator outputting a first clock signal and a second clock signal; a gate driver outputting gate signals; and a plurality of pixels which turn on or off based on the gate signals, wherein the constant voltage output device outputs a temperature variable voltage having a value based on a voltage difference between a reference terminal of the constant voltage output device and an input terminal of the constant voltage output device, and a voltage difference between the reference terminal and the input terminal of the constant voltage output device varies based on the change in the ambient temperature.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: May 27, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Woo Jeong, Sang-Hoon Park, Hwan-Jun Sung
  • Down-converter, up-converter, receiver and transmitter applying the same
    Patent number: 8737946
    Abstract: A down-frequency conversion circuit and up-frequency conversion circuit, and a receiver and transmitter applying the same are provided. The down-frequency conversion circuit includes a harmonic mixer and general mixer, and thus becomes able to convert frequency using one LO (Local Oscillator) frequency, thereby reducing burden on generating LO frequency.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 27, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Ki Jin Kim, Kwang Ho Ahn, Sang Hoon Park, Young Jin Kim, Eun Su Kim, Dong Hyun Baek, Seoung Yeoung Son, Jin Young Lee
  • RF SWITCH WITH TRANSFORMER AND SWITCHING METHOD THEREOF
    Publication number: 20140139298
    Abstract: A radio frequency (RF) switch with a transformer and a switching method thereof are provided. The RF switch includes a transmitting end transformer having a primary side connected to a transmitting end and a secondary side connected to an antenna; and a receiving end transformer having a primary side connected to the antenna and a secondary side connected to a receiving end. In a transmission mode, the transmitting end transformer is tuned on, and, in a reception mode, the receiving end transformer is turned on. Accordingly, since switching is performed based on transformers rather than transistors connected in series, the RS switch, which can achieve high linearity and low insertion loss as well as high isolation, can be implemented.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 22, 2014
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Ki Jin KIM, Kwang Ho AHN, Sang Hoon PARK
  • METHOD FOR MANUFACTURING PRINTED CIRCUIT BOARD
    Publication number: 20140124474
    Abstract: Disclosed herein is a method for manufacturing a printed circuit board, wherein a protective film for stripping and a metal layer closely adhered to the protective film for stripping are formed on an inner layer pad to protect the inner layer pad at the time of laser processing related to cavity processing and applying an etchant, thereby making it possible to improve reliability of a product.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 8, 2014
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kwang Sun You, Seung Ryeol Lee, Sang Hoon Park, Kyung Jin Heo, Jae Ho Shin, Joong Hyuk Jung
  • Organic light emitting device comprising layer comprising organic-metal complex and method of preparing the same
    Patent number: 8703301
    Abstract: Provided are an organic light emitting device including a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode, wherein the organic layer includes a first layer including an organic-metal complex represented by Formula 1 below, and a method of preparing the same: wherein Formula 1 is described in the description of the invention.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: April 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: O-hyun Kwon, Sang-hoon Park, Byoung-ki Choi, Dong-woo Shin
  • METHOD OF PREVENTING PROGRAM-DISTURBANCES FOR A NON-VOLATILE SEMICONDUCTOR MEMORY DEVICE
    Publication number: 20140043896
    Abstract: A method of preventing program-disturbances for a non-volatile semiconductor memory device having a plurality of memory cells of which each includes a selection transistor and a memory transistor coupled in series between a bit-line and a common source-line is provided. First non-selected memory cells that share a first selection-line with a selected memory cell, and second non-selected memory cells that do not share the first selection-line with the selected memory cell are determined when the selected memory cell is selected to be programmed among the memory cells. A negative voltage is applied to second selection-lines that are coupled to the second non-selected memory cells when the selected memory cell is programmed by applying a positive voltage to the first selection-line that is coupled to the selected memory cell.
    Type: Application
    Filed: July 11, 2013
    Publication date: February 13, 2014
    Inventors: Weon-Ho Park, Hyok-Ki Kwon, Min-Sup Kim, Min-Su Kim, Byoung-Ho Kim, Eui-Yeol Kim, Sang-Hoon Park, Ji-Hoon Park, Min-Jee Sung, Hyo-Soung Sim, Chang-Min Jeon, Hee-Seog Jeon
  • FILM FORMATION COMPOSITION FOR PREVENTING BLACKENING OF STEEL SHEET, AND STEEL SHEET HAVING FILM FORMED BY COMPOSITION
    Publication number: 20140011048
    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: Application
    Filed: March 28, 2012
    Publication date: January 9, 2014
    Applicants: NOROO COIL COATINGS CO., LTD., POSCO
    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
  • Display apparatus and method of driving the same
    Patent number: 8614697
    Abstract: A display apparatus includes a timing controller which outputs image data, a data control signal and a first gate control signal, a data driving circuit which receives the image data and converts the image data into data voltages, a control signal converting circuit which delays the first gate control signal by a reference time period to convert the first gate control signal into a second gate control signal based on a reference signal, a gate driving circuit which outputs gate signals based on the second gate control signal, and a display panel which displays an image corresponding to the one line of the data voltages based on the gate signals. Each gate signal rises at a point in time delayed from a starting point of a corresponding horizontal scanning period by the reference time period and falls before an ending point of the corresponding horizontal scanning period.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: December 24, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung-Hak Kim, Sang-Hoon Park, Kyu-Jin Park, Kyu-Hun Lim, Sun-Mi Son
  • Ferrite for high-frequency applications and manufacturing method thereof
    Patent number: 8608975
    Abstract: Disclosed are a ferrite for high-frequency applications and a manufacturing method thereof. The ferrite comprises the elements Mg, Cu, Fe, and O, in which the elements have a composition ratio represented by the formula Mg1-xCuxFe2O4, wherein x has a value of 0.1 or less.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: December 17, 2013
    Assignee: EMW Co., Ltd.
    Inventors: Byung Hoon Ryou, Won Mo Sung, Sang Hoon Park
  • SNAP-ON TWO-PIECE EMERGENCE PROFILE HEALING ABUTMENT
    Publication number: 20130296813
    Abstract: A snap-on two-piece emergence profile healing abutment provides a trans-gingival piece that can create various gingival shapes and contours of the dental implant emergence profile. The device consists of two main components: a central piece similar to standard healing abutments, having multiple facets; and an interchangeable outer piece used as a gingival emergence profile shell. The gingival emergence profile shell can be configured in various sizes and shapes to best estimate the size and shape of a dental crown to be restored.
    Type: Application
    Filed: May 28, 2010
    Publication date: November 7, 2013
    Applicant: University of Maryland, Baltimore
    Inventor: Sang-Hoon Park
  • LIQUID CRYSTAL DISPLAY
    Publication number: 20130241912
    Abstract: A liquid crystal display (LCD) includes: a gate-off voltage generator including a temperature compensation unit which comprises a constant voltage output device and which outputs a gate-off voltage having a level which varies based on a change in ambient temperature; a clock generator outputting a first clock signal and a second clock signal; a gate driver outputting gate signals; and a plurality of pixels which turn on or off based on the gate signals, wherein the constant voltage output device outputs a temperature variable voltage having a value based on a voltage difference between a reference terminal of the constant voltage output device and an input terminal of the constant voltage output device, and a voltage difference between the reference terminal and the input terminal of the constant voltage output device varies based on the change in the ambient temperature.
    Type: Application
    Filed: September 10, 2012
    Publication date: September 19, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-Woo JEONG, Sang-Hoon PARK, Hwan-Jun SUNG
  • Exhaust gas purifying device for diesel engine
    Patent number: 8506892
    Abstract: The present invention relates to an exhaust gas purifying device for a diesel engine, which purifies efficiently Nitrogen Oxides (NOx) and Particulate Matters (PM) contained in exhaust gases of the diesel engine, particularly provides an exhaust gas purifying device disposed in an exhaust passage of a diesel engine, wherein a catalyst part for reducing Nitrogen Oxides and a filter part for removing Particulate Matter are provided sequentially from an upstream for a flow of the exhaust gas and a diesel fuel injector is mounted at a front of the Nitrogen Oxide reduction catalyst part.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: August 13, 2013
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yong-Woo Kim, Do-Woan Kim, Joon-Seok Min, Seong-Ho Lee, Hong-Seok Jung, Yun-Guen Cho, Hyo-Jun Jeon, Nicholas Kim, Gi-Ho Goh, Sang Hoon Park
  • Continuous Coating Apparatus
    Publication number: 20130199447
    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: Application
    Filed: December 13, 2010
    Publication date: August 8, 2013
    Applicant: 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
  • Dry Coating Apparatus
    Publication number: 20130186339
    Abstract: Provided is a dry coating apparatus for coating a coating material, i.e., deposition vapor (metal vapor) on a substrate (a steel strip). The dry coating apparatus includes a coating part disposed in a vacuum to coat deposition vapor generated through heating and evaporation of a supplied coating material onto a proceeding object to be coated and a heating source disposed in an atmosphere to heat and levitate the coating material in the coating part.
    Type: Application
    Filed: December 26, 2011
    Publication date: July 25, 2013
    Applicant: POSCO
    Inventors: Kyung-Hoon Nam, Mun-Jong Eom, Young-Jin Kwak, Woo-Sung Jung, Tae-Yeob Kim, Dong-Yoeul Lee, Seok-Jun Hong, Kyoung-Bo Kim, Yong-Hwa Jung, Sang-Hoon Park, Sang-Cheol Lee, Yang-Woo Nam
  • Al PLATING LAYER/Al-Mg PLATING LAYER MULTI-LAYERED STRUCTURE ALLOY PLATED STEEL SHEET HAVING EXCELLENT PLATING ADHESIVENESS AND CORROSION RESISTANCE, AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20130186524
    Abstract: Provided is an aluminum (Al) plating layer/aluminum (Al)-magnesium (Mg) plating layer multi-layered structure alloy plated steel sheet having excellent plating adhesiveness and corrosion resistance, which is characterized in that the Al—Mg plating layer is formed on the Al plating layer. According to the present invention, corrosion resistance of an Al plated steel sheet is further improved by forming an Al—Mg alloy plating layer, and plating adhesiveness between plating layer and underlying steel sheet may be improved as well as excellent stability and practicality being realized.
    Type: Application
    Filed: December 20, 2011
    Publication date: July 25, 2013
    Applicant: POSCO
    Inventors: Young-Jin Kwak, Dong-Yoeul Lee, Yong-Hwa Jung, Woo-Sung Jung, Mun-Jong Eom, Kyoung-Bo Kim, Kyung-Hoon Nam, Tae-Yeob Kim, Sang-Cheol Lee, Sang-Hoon Park
  • Functionalized metal nanoparticle and method for formation of conductive pattern using the same
    Patent number: 8481161
    Abstract: A printable metal nanoparticle having a self-assembled monolayer (SAM) composed of a compound containing a thiol (—SH), isocyanide (—CN), amino (—NH2), carboxylate (—COO) or phosphate group, as a linker, formed on the surface thereof, and a method for formation of a conductive pattern using the same are provided. The metal nanoparticles of an exemplary embodiment can be easily formed into a conductive film or pattern by a printing method, and the resulting film or pattern exhibits excellent conductivity which optimally may be adjusted if desired. Therefore, the resulting metal nanoparticles of can be used to advantage in the fields such as antistatic washable sticky mats, antistatic shoes, conductive polyurethane printer rollers, electromagnetic interference shielding materials, etc.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: July 9, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong Jin Park, Sung Woong Kim, Dong Woo Shin, Sang Hoon Park
  • Backlight assembly and cover for a compact display apparatus
    Patent number: 8398291
    Abstract: A back cover for a backlight assembly capable of achieving a more compact a display apparatus includes a cover element, a line portion, and a plurality of point light sources. The cover element includes a metallic layer, and the cross-section of the cover element has an L-shape. The line portion is formed over the cover element. The point light sources are mounted on the surface of the cover element to receive a driving voltage from the line portion. A bottom cover portion of the cover element covers an opening portion. A side cover portion of the cover element faces the side wall. The point light sources mounted on the cover element emit light on a side surface of a light guide plate.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: March 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Joo Nam, Sang-Hoon Park, Dong-Gyun Ra
  • Backlight device and display apparatus having the same
    Patent number: 8373646
    Abstract: In a backlight device and a driving method thereof, a voltage controller controls a voltage level of a first input voltage in response to a dimming signal to output a second input voltage. A pulse generator receives the second input voltage from the voltage controller and generates a pulse signal having a duty ratio corresponding to the dimming signal and a high voltage level corresponding to the second input voltage. An inverter generates a lamp driving signal based on the pulse signal. At least one lamp included in the backlight device is turned on or turned off in response to a lamp driving signal to adjust luminance of the backlight device.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: February 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu-Jin Park, Hyoung-Hak Kim, Sang-Hoon Park
  • Anthracene-based compound and organic light emitting device employing the same
    Patent number: 8367220
    Abstract: Provided are an anthracene-based compound represented by Formula 1 or 2 and an organic light emitting device employing the same: where R is a hydrogen atom, a halogen atom, a cyano group, a hydroxyl group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C3-C20 cycloalkyl group, a substituted or unsubstituted C5-C30 heterocycloalkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aralkyl group or a substituted or unsubstituted C2-C30 heteroaryl group, L is a bivalent linking group and a substituted or unsubstituted C6-C30 arylene group or a substituted or unsubstituted C2-C30 heteroarylene group, and m is an integer of 0 to 3.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: February 5, 2013
    Assignees: Samsung Electronics Co., Ltd., Samsung Display Co., Ltd.
    Inventors: Sang-hoon Park, O-hyun Kwon, Seung-gak Yang, Yu-jin Kim, Yu-ri Choi, Kwan-hee Lee
  • Anthracene-based compound and organic light emitting device employing the same
    Patent number: 8367219
    Abstract: Provided are an anthracene-based compound represented by Formula 1 or 2 and an organic light emitting device employing the same: where R is a hydrogen atom, a halogen atom, a cyano group, a hydroxyl group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C3-C20 cycloalkyl group, a substituted or unsubstituted C5-C30 heterocycloalkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aralkyl group or a substituted or unsubstituted C2-C30 heteroaryl group, L is a bivalent linking group and a substituted or unsubstituted C6-C30 arylene group or a substituted or unsubstituted C2-C30 heteroarylene group, and m is an integer of 0 to 3.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: February 5, 2013
    Assignees: Samsung Electronics Co., Ltd., Samsung Display Co., Ltd.
    Inventors: Sang-hoon Park, O-hyun Kwon, Seung-gak Yang, Yu-jin Kim, Yu-ri Choi