Patents by Inventor Yong Han

Yong Han 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).

  • SHELL-TYPE ELECTROPHORETIC PARTICLE, DISPLAY DEVICE INCLUDING THE PARTICLE, AND METHOD THEREOF
    Publication number: 20090027761
    Abstract: An electrophoretic particle includes ionic liquid stored in a spherical polymer shell and a charged layer formed on an inner surface of the shell, and a display device includes the electrophoretic particle. The shell is not charged, and the charged layer in the shell is charged. Therefore, particles having different polarities from each other do not stick to each other. Since the electrophoretic particles are dispersed in air, a high response speed can be achieved, a large amount of charges can be formed by the ionic liquid and the charged layer contacting the ionic liquid, and thus, the particles can move with a low driving voltage.
    Type: Application
    Filed: December 18, 2007
    Publication date: January 29, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jae-young CHOI, Jai-yong HAN
  • SURFACE PLASMON DISPLAY DEVICE AND METHOD THEREOF
    Publication number: 20090027329
    Abstract: A surface plasmon display device includes metal particles having a constant size within all of the pixel regions between a first electrode and a second electrode and a dielectric layer corresponding to each of the pixel regions formed on an inner surface of a first substrate, wherein the dielectric layer in each of the pixel regions has physical properties for causing the surface plasmon resonance corresponding to a wavelength designated to the corresponding pixel region.
    Type: Application
    Filed: November 30, 2007
    Publication date: January 29, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jae-young CHOI, Jai-yong HAN
  • Image interpolation apparatus and method
    Patent number: 7477804
    Abstract: The present invention is an interpolation device and method. According to the present invention, a plurality of pixels close to a pixel to be interpolated are sequentially set to a central pixel. When a pixel difference closest to a threshold value among pixel differences between the central pixel and a plurality of pixels around the central pixel belongs to a quasi-edge decision range, an edge interpolation and a bilinear interpolation are mixed to interpolate the pixel to be interpolated. As a result, it is possible to prevent reduction in image quality due to an edge verdict caused by unstable input image signal and perform a stable interpolation operation.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: January 13, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwe-Ihn Chung, Yong-In Han
  • Method for improving germline transmission efficiency of avian primordial germ cells
    Patent number: 7476776
    Abstract: The present invention relates to a method for improving the germline transmission efficiency of avian primordial germ cells (PGCs), and methods for producing avian chimeras and transgenic using it. The present method comprises the steps of (a) isolating primordial germ cells (PGCs) from an avian embryonic gonad; and (b) culturing said PGCs in vitro for at least 5 days. According to the present method, the germline transmission efficiency of PGCs can be dramatically improved in a feasible manner.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: January 13, 2009
    Assignees: Seoul National University Industry Foundation, Avicore Biotechnology Institute Inc., Hanmi Pharm. Co. Ltd.
    Inventors: Jae Yong Han, Tae Sub Park, Yeong Ho Hong, Se Chang Kwon
  • Ionic liquids as solvents
    Publication number: 20090012297
    Abstract: A method in one embodiment includes contacting a strongly hydrogen bonded organic material with an ionic liquid having a fluoride anion for solubilizing the strongly hydrogen bonded organic material; and maintaining the ionic liquid at a temperature of about 90° C. or less during the contacting. A method in another embodiment includes contacting a strongly hydrogen bonded organic material with an ionic liquid having an acetate or formate anion for solubilizing the strongly hydrogen bonded organic material; and maintaining the ionic liquid at a temperature of less than about 90° C. during the contacting.
    Type: Application
    Filed: April 23, 2008
    Publication date: January 8, 2009
    Inventors: Philip F. Pagoria, Amitesh Maiti, Alexander Gash, Thomas Yong Han, Christine Orme, Laurence Fried
  • Method of fabricating GaN
    Patent number: 7462893
    Abstract: A method of fabricating a thick gallium nitride (GaN) layer includes forming a porous GaN layer having a thickness of 10-1000 nm by etching a GaN substrate in a reaction chamber in an HCI and NH3 gas atmosphere and forming an in-situ GaN growth layer in the reaction chamber. The method of forming the porous GaN layer and the thick GaN layer in-situ proceeds in a single chamber. The method is very simplified compared to the prior art. In this way, the entire process is performed in one chamber, and in particular, GaN etching and growth are performed using an HVPE process gas such that costs are greatly reduced.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: December 9, 2008
    Assignee: Samsung Corning Co., Ltd.
    Inventors: Jai-yong Han, Jun-sung Choi, In-jae Song
  • PLASMA DISPLAY PANEL AND METHOD FOR FABRICATING THE SAME
    Publication number: 20080297049
    Abstract: A plasma display panel and method are provided to reduce noise. The plasma display panel may include a first substrate including a first electrode, a second substrate facing the first substrate, the second substrate including a second electrode, and barrier ribs arranged between the first substrate and the second substrate to partition discharge cells. The plasma display panel may also include a first adhesion layer arranged between the first substrate and each of the barrier ribs, and a second adhesion layer arranged between the first substrate and the second substrate.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 4, 2008
    Inventors: Jae Yong HAN, Sung Tae Kim, Nam Seok Kang
  • Apparatus for fabrication of GaN bulk single crystal and fabrication method of GaN single crystal ingot using the same
    Patent number: 7449066
    Abstract: An apparatus for fabricating a GaN single crystal and a fabrication method for producing GaN single crystal ingot are provided. The apparatus includes: a reactor including a ceiling, a floor and a wall with a predetermined height encompassing an internal space between the ceiling and the floor, wherein the ceiling is opposite to the floor; a quartz vessel on the floor containing Ga metal; a mount installed on the ceiling on which a GaN substrate is mounted, the GaN substrate being opposite to the quartz vessel; a first gas supplying unit supplying the quartz vessel with hydrogen chloride (HCl) gas; a second gas supplying unit supplying the internal space of the reactor with ammonia (NH3) gas; and a heating unit installed in conjunction with the wall of the reactor for heating the internal space, wherein the lower portion of the internal space is heated to a higher temperature than the upper portion.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: November 11, 2008
    Assignee: Samsung Corning Co., Ltd.
    Inventor: Jai-yong Han
  • Organic electroluminescent device
    Patent number: 7445856
    Abstract: An organic electroluminescent device including an organic green emission layer comprising a green emission material and a blue emission material. The green emission layer is interposed between a pair of electrodes.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: November 4, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hye-In Jeong, Ok-Keun Song, Young-Mo Koo, Yong-Han Lee
  • DISPLAY APPARATUS AND METHOD OF FABRICATING THE SAME
    Publication number: 20080259261
    Abstract: A display apparatus includes a gate line, a data line crossing the gate line and a pixel area. A common electrode and a pixel electrode are overlapped with each other and formed in the pixel area. The common electrode and the pixel electrode receive different voltages. The data line includes a first data line through which a voltage is applied to the common electrode and a second data line through which a voltage is applied to the pixel electrode. The first data line crosses the pixel area to minimize an area where the first data line is formed, thereby improving an aperture ratio of the display apparatus.
    Type: Application
    Filed: February 12, 2008
    Publication date: October 23, 2008
    Inventors: Yong-Han PARK, Yong-Gi PARK, Seok-Je SEONG, Min-Kyung JUNG
  • Apparatus for refrigeration
    Publication number: 20080245093
    Abstract: A refrigerator including a blowing unit optimized for a bottom type condenser. The refrigerator includes a main body having a storage compartment defined therein, a condenser mounted at the bottom of the main body, and a blowing unit to blow air that has already passed through the condenser. The blowing unit includes a centrifugal fan mounted in a machine compartment and a blowing guide member to guide air blown by the centrifugal fan to the front of the main body. Consequently, it is possible to discharge the air that has already passed through the bottom type condenser, to the front of the main body, thereby accomplishing the smooth discharge of air and reducing the power consumption necessary to blow the air.
    Type: Application
    Filed: March 20, 2008
    Publication date: October 9, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won Jae Yoon, June Kee Min, Yong Pil Park, Sun Gyou Lee, Chang Hak Lim, Jin Jeong, In Sub Lee, Yong Han Kim, Yeo Wool Jung
  • Method for identifying a testicular cell of a chicken
    Patent number: 7427481
    Abstract: The present invention relates to a nucleotide sequence of a testis-specific gene in avian species and a method for identifying a testicular cell of avian species.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: September 23, 2008
    Assignee: Avicore Biotechnology Institute Inc.
    Inventors: Ji Hye Shin, Beom Ku Han, Heebal Kim, Jae Yong Han
  • Refrigerator with air guide duct
    Publication number: 20080223063
    Abstract: Disclosed is a refrigerator in which a space occupied by an evaporating dish can be minimized, evaporation efficiency of defrost water by convection-heat transfer can be improved, air can be easily exhausted in a machine room, and thus the cooling efficiency of a compressor and a condenser can be improved. The refrigerator includes: a cooling apparatus including a compressor, a condenser, and an evaporator; a blowing fan blowing air to cool at least one of the compressor and the condenser; a blowing guide duct guiding the air blown by the blowing fan to an exterior; and an evaporating dish installed in a lower portion of the blowing guide duct in order to collect and evaporate defrost water, the evaporating dish having an opened upper portion to communicate with a path of the blowing guide duct.
    Type: Application
    Filed: November 15, 2007
    Publication date: September 18, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin Jeong, June Kee Min, Yong Pil Park, Sung Gyou Lee, Chang Hak Lim, In Sub Lee, Won Jae Yoon, Yong Han Kim, Yeo Wool Jung
  • Image printer with common filter to filter common operating frequency band of fixing module and switch mode power supply module
    Patent number: 7424234
    Abstract: An image printer using a common filter to remove harmonic waves generated at a common operating frequency band of a fixing module to fix toner onto a print medium using high frequency power generated from a high frequency generator and a switch mode power supply module to supply operating power to the high frequency generator. The image printer includes a fixing module to fix toner to a print medium using high frequency power generated from a high frequency generator, a switch mode power supply module to supply operating power to the high frequency generator, and a band pass filter to filter harmonic waves of a common operating frequency band of the fixing module and the switch mode power supply module.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: September 9, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-ha Kim, Hwan-guem Kim, Durk-hyun Cho, Young-min Chae, Sang-yong Han
  • DISPLAY SUBSTRATE, METHOD FOR MANUFACTURING THE SAME, AND DISPLAY APPARATUS HAVING THE SAME
    Publication number: 20080204618
    Abstract: A display substrate includes a substrate, a guard ring and a connecting line. The substrate includes a plurality of active areas, and each of the active areas has a pixel area and a peripheral area. The guard ring is formed on the substrate to enclose each of the active areas, and is formed from substantially the same layer as a pixel electrode that is formed in a unit pixel. The connecting line is formed from a different layer than the guard ring, to electrically connect the guard ring with pads. The connecting line is formed before forming an organic insulating layer, and thus the frequency and/or severity of patterning defects of the connecting line may be reduced or prevented. Accordingly, short circuits between the pads may be prevented, and the corrosion resistance of the display apparatus may be increased.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 28, 2008
    Inventors: Min-Kyung JUNG, Yong-Han Park, Hyung-Don Na, Hyun-Young Kim
  • LIQUID CRYSTAL DISPLAY AND METHOD THEREOF
    Publication number: 20080198121
    Abstract: A liquid crystal display (“LCD”) includes a first display area, a second display area, a peripheral area outside of the first and second display area, and a dummy pixel unit formed on the peripheral area, wherein the first and second display areas include a plurality of pixels arranged in a matrix each of which has a switching element, and data lines and gate lines connected to the pixels, wherein the data lines include a first data line group positioned on the first and second display areas and a second data line group positioned on the first display area and the dummy pixel unit.
    Type: Application
    Filed: January 9, 2008
    Publication date: August 21, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Yong-Han Park, Yong-Koo Her
  • Image fixing device of an image forming apparatus
    Patent number: 7415234
    Abstract: A fixing device of an image forming apparatus includes a fixing roller rotatably mounted on a moving path of a printing medium having a toner image transferred thereon to fuse the toner image on the printing medium, a heater mounted in the fixing roller to generate a magnetic field by applied voltage, thus heating the fixing roller, and at least one magnetic core disposed around the fixing roller to concentrate, onto the fixing roller, the magnetic field generated by driving the heater. Accordingly, a density difference of the magnetic field generated by the heater is minimized by disposing the at least one magnetic core around the fixing rollers, thus enabling a uniform fixing temperature.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: August 19, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwan-guem Kim, Joong-gi Kwon, Durk-hyun Cho, Young-min Chae, Sang-yong Han
  • HEAD STACK ASSEMBLY AND HARD DISK DRIVE APPARATUS WITH THE SAME
    Publication number: 20080186631
    Abstract: A head stack assembly (HSA) including a swing arm including a core pivotably coupled to a base of a hard disk drive apparatus (HDD) and at least one arm blade extending horizontally from the core, a suspension extending from a front end of the arm blade, a head slider mounted on a front end of the suspension, a blade extension portion provided at a side of the swing arm in a width direction of the swing arm, the blade extension portion being an extension of the arm blade toward the core to avoid interfering with a disk of the HDD, and a rigidity weakening portion provided at the other side of the swing arm in the width direction, the rigidity weakening portion having a thickness less than that of the arm blade so as to alleviate an inconsistency of the rigidity of the arm blade in a width direction of the arm blade caused by the blade extension portion.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 7, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Woo-sung KIM, Yong-han Song
  • Response time accelerator and method for driving liquid crystal display
    Patent number: 7400311
    Abstract: A response time accelerator and method for driving a liquid crystal display (LCD) are provided. According to the response time accelerator for driving an LCD, an acceleration unit reads previous data Pn?1 corresponding to input current data Pn from a frame memory unit that updates and stores one or more frames of previous data Pn?1. The acceleration unit then reads predetermined mapped panel output value TPO, predetermined mapped panel characteristic value TpPn, and flag information corresponding to the previous data Pn?1 and current data Pn from a table memory unit that stores predetermined mapped panel output values TPOs, predetermined mapped panel characteristic values TpPns, and flag information corresponding to the predetermined mapped panel characteristic values TpPns, and decodes the read information.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: July 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-joon Park, Hwan-sang Roh, Yong-joon Jung, Kwang-whui Cho, Yong-in Han, Gwang-sun Lee
  • UNIT TO REMOVE CROSSTALK IN MULTI-LAYERED DISK, OPTICAL PICKUP INCLUDING THE UNIT, AND OPTICAL RECORDING AND/OR REPRODUCING APPARATUS INCLUDING THE OPTICAL PICKUP
    Publication number: 20080165641
    Abstract: A unit to remove crosstalk in a multi-layered disk, an optical pickup including the unit, and an optical recording and/or reproducing apparatus including the optical pickup, of which the optical pickup includes: a light source; an optical path changer to change the path of light emitted from the light source; a unit to remove crosstalk; an objective lens to focus incident light on a disk; and a photodetector detecting light reflected by the disk such that the unit to remove crosstalk separates light reflected by a target recording layer of the disk from light reflected by adjacent recording layers so that the light reflected by the target recording layer and the light reflected by the adjacent recording layers do not overlap on the photodetector.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 10, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: JANG-HOON YOO, YONG-HAN YOON, SOO-HEN PARK, YOUNG-SUN JEONG, MYOUNG-SEEK KIM