Patents by Inventor Chang Ho

Chang Ho 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).

  • NUCLEASE-RESISTANT RNA APTAMER INHIBITING REPLICATION OF HEPATITIS C VIRUS REPLICON
    Publication number: 20100160617
    Abstract: Disclosed a nuclease-resistant RNA aptamer for inhibiting the replication of HCV replicon. This aptamer is capable of binding specifically to HCV NS5B and inhibiting the proliferation of the HCV replicon, and is composed of at least one sequence selected from a group consisting of SEQ ID NOS. 1 to 4, in which a fluoro group is substituted for 2?-hydroxy of both U (uracil) and C (cytosine) bases, and SEQ ID NO. 4, which is tagged with a cholesteryl group at a 5? end and with idT at a 3? end. The RNA aptamer is useful in the diagnosis and treatment of HCV infection.
    Type: Application
    Filed: June 8, 2007
    Publication date: June 24, 2010
    Inventors: Seong-Wook Lee, Kyung-Sook Shin, Jong-Hoon Lim, Young-Joo Lee, Chang-Ho Lee
  • Inorganic Artificial Marble and Composition for Inorganic Artificial Marble
    Publication number: 20100154676
    Abstract: The present invention provides an inorganic artificial marble having excellent impact strength and weather resistance. The inorganic artificial marble can be a substitute for natural stone and used as an exterior finishing material.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Applicant: Cheil Industries Inc.
    Inventors: Joon Hyun Park, Chang Ho Son, Dong Hee Kim, Eung Seo Park
  • METHOD FOR PROVIDING MOBILITY TO MOBILE NODE IN PACKET TRANSPORT NETWORK, PACKET TRANSPORT NETWORK SYSTEM AND GATEWAY SWITCH
    Publication number: 20100157963
    Abstract: A method for providing mobility of a mobile node in a packet transport network, and a packet transport network system are provided. The packet transport network system includes a plurality of gateway switches configured in a plurality of packet transport access networks to connect a packet transport core network and transmit/receive a packet to/from a certain terminal via a certain access switch. When the certain terminal moves, each gateway switch updates a tunnel mapping and management table according to the movement of the certain terminal, allocates a pre-set tunnel by using information included in the tunnel mapping and management table, and transmits/receives a packet to/from a counterpart terminal via the allocated tunnel. Thus, a packet loss and delay due to the influence of handover occurring when the mobile node moves between networks can be minimized and the handover procedure can be simplified.
    Type: Application
    Filed: September 15, 2009
    Publication date: June 24, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chang Ho CHOI, Yong Wook Ra, Bheom Soon Joo, Byung Jun Ahn
  • SYSTEMS AND METHODS FOR SELF-MIXING ADAPTIVE BIAS CIRCUIT FOR POWER AMPLIFIER
    Publication number: 20100156536
    Abstract: Systems and methods for providing a self-mixing adaptive bias circuit that may include a mixer, low-pass filter or a phase shifter, and a bias feeding block. The self-mixing adaptive bias circuit may generate an adaptive bias signal depending on input signal power level. As the input power level goes up, the adaptive bias circuit increases the bias voltage or bias current such that the amplifier will save current consumption at low power operation levels and obtain better linearity at high power operation levels compared to conventional biasing techniques. Moreover, the adaptive bias output signal can be used to cancel the third-order intermodulation terms (IM3) to further enhance the linearity as a secondary effect.
    Type: Application
    Filed: November 20, 2009
    Publication date: June 24, 2010
    Applicants: SAMSUNG ELECTRO-MECHANICS COMPANY, GEORGIA TECH RESEARCH CORPORATION
    Inventors: Dong Ho Lee, Kyu Hwan An, Chang-Ho Lee, Joy Laskar
  • METHOD OF PREPARING A POLYETHYLENE MICROPOROUS FILM FOR A RECHARGEABLE BATTERY SEPARATOR
    Publication number: 20100155982
    Abstract: Disclosed are a polyethylene microporous film and a method of preparing the same. The polyethylene microporous film, which has a laminated structure comprising B layer/A layer/B layer, prepared by melt-mixing a polyethylene and an aliphatic hydrocarbon solvent together at controlled mixing ratios to separately form an A layer and a B layer having different porosities, and then coextruding the A and B layers, thus exhibiting excellent mechanical properties, such as strength and elongation, and high-temperature stability. Therefore, the polyethylene microporous film is suitable for use in a rechargeable battery separator.
    Type: Application
    Filed: January 15, 2010
    Publication date: June 24, 2010
    Applicant: TORAY SAEHAN INC.
    Inventor: Chang Ho Suh
  • ASSEMBLY STRUCTURE OF A FLAT SPEAKER
    Publication number: 20100158284
    Abstract: An assembly structure of flat speaker including at least two speaker units and one connecting structure is provided. Each speaker unit includes a first electrode, a vibrating film, and a second electrode. The connecting structure includes two conductive layers, and a first insulating layer. A first conductive layer is connected the first electrode through a contact area, and each has a first length and a third length parallel to the contact area. A second conductive layer is connected the second electrode through a contact area, and each has a second length and a fourth, a fifth length parallel to the contact area. The third length is less than or equal to a sum of the first lengths of the speaker units. A sum of the third, the fourth, and the fifth length is less than or equal to a sum of the first and second lengths.
    Type: Application
    Filed: August 4, 2009
    Publication date: June 24, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Min Lin, Chang-Ho Liou, Yu-Wei Huang, Ming-Daw Chen, Rong-Shen Lee
  • Composition for simultaneously forming two isolated column spacer patterns
    Publication number: 20100160477
    Abstract: A composition for forming column spacers is provided. The composition comprises a radical polymerization inhibitor. The use of the composition enables simultaneous formation of a saturated pattern and a semi-transmissive pattern as column spacer patterns having different shapes, whose difference in thickness is controllable as desired although the sensitivity is slightly reduced, through a slit or semi-transmissive mask by varying the kind and amount of the radical polymerization inhibitor. Further provided are column spacers formed using composition and a liquid crystal display using the column spacers.
    Type: Application
    Filed: December 23, 2009
    Publication date: June 24, 2010
    Inventors: Chang Ho Cho, Keon Woo Lee, Sung Hyun Kim, Sang Kyu Kwak, Dong Kung Oh, Chang Soon Lee
  • Electro-chromic display device and method of manufacturing the same
    Patent number: 7742216
    Abstract: Disclosed herein is an electrochromic display device comprising a pair of transparent substrates facing each other, an anode electrode and a cathode electrode respectively formed on the transparent substrates, an electrolytic layer disposed between the anode electrode and the cathode electrode, an electrochromophore layer of a nano structure formed on at least one of the anode electrode and the cathode electrode, and a redox promoter layer coated with a conductive compound, on the other electrode.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: June 22, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Ho Noh, Sung Hen Cho, Ki Yong Song, Tae Rim Choi, Tamara Byk
  • REFRIGERATOR WITH ICE MAKING ROOM
    Publication number: 20100147009
    Abstract: A refrigerator with an ice making chamber is provided. The refrigerator may include a main body that defines a cooling chamber, and lateral wall passages formed at a lateral wall of the cooling chamber. A door that is rotatably coupled to the cooling chamber may be provided with an ice making chamber installed on an interior side thereof, and a connection duct part that connects the ice making chamber to the lateral wall passages. The connection duct part may include passage forming members that define a cold air passage therein, and insulation portion formed around the passage forming members, whereby components of the duct may be quickly and easily assembled at correct positions.
    Type: Application
    Filed: August 26, 2009
    Publication date: June 17, 2010
    Inventors: Dong-Jeong KIM, Chang-Ho Seo
  • Systems and Methods for Power Amplifiers with Voltage Boosting Multi-Primary Transformers
    Publication number: 20100148866
    Abstract: Systems and methods may be provided for a power amplifier system. The systems and methods may include a plurality of power amplifiers, where each power amplifier includes at least one output port. The systems and methods may also include a plurality of primary windings each having a first number of turns, where each primary winding is connected to at least one output port of the plurality of power amplifiers, and a single secondary winding inductively coupled to the plurality of primary windings, where the secondary winding includes a second number of turns greater than the first number of turns.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 17, 2010
    Applicants: SAMSUNG ELECTRO-MECHANICS COMPANY, GEORGIA TECH RESEARCH CORPORATION
    Inventors: Chang-Ho Lee, Kyu Hwan An, Ki Seok Yang, Jaejoon Chang, Wangmyong Woo, Younsuk Kim, Haksun Kim, Ockgoo Lee, Dong Ho Lee, Hyungwook Kim, Joy Laskar
  • INTEGRATED POWER AMPLIFIERS FOR USE IN WIRELESS COMMUNICATION DEVICES
    Publication number: 20100148877
    Abstract: An integrated power amplifier can include a carrier amplifier, where the carrier amplifier is connected to a first quarter wave transformer at the input of the carrier amplifier.
    Type: Application
    Filed: November 20, 2009
    Publication date: June 17, 2010
    Applicants: SAMSUNG ELECTRO-MECHANICS COMPANY, LTD., GEORGIA TECH RESEARCH CORPORATION
    Inventors: Michael Alan Oakley, Dong Ho Lee, Kyu Hwan An, Chang-Ho Lee, Joy Laskar
  • WIRELESS MAGNETIC NEEDLE SYSTEM FOR TRADITIONAL ORIENTAL MEDICINE
    Publication number: 20100152763
    Abstract: A wireless magnetic needle system for traditional oriental medicine can apply a magnetic field to a needle being used for the acupuncture process on a patient by use of a Helmholtz coil capable of applying a magnetic field to a wide space and can apply a magnetic stimulus to the patient through the needle, thereby making it possible to maximize the therapy effect of the needle. The wireless magnetic needle system includes a current generating unit and a Helmholtz coil. The Helmholtz coil includes a first coaxial coil disposed over a bed for a patient, and a second coaxial coil disposed under the bed. The current generating unit generates a current, and the Helmholtz coil creates a magnetic field by using the current generated by the current generating unit.
    Type: Application
    Filed: May 28, 2009
    Publication date: June 17, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yark Yeon Kim, Won Ick Jang, Chang Ho Bae, Seon Hee Park, Han Young
  • SYSTEMS AND METHODS FOR AN ADAPTIVE BIAS CIRCUIT FOR A DIFFERENTIAL POWER AMPLIFIER
    Publication number: 20100148871
    Abstract: Systems and methods for providing an adaptive bias circuit that may include a differential amplifier, low-pass filter, and common source amplifier or common emitter amplifier. The adaptive bias circuit may generate an adaptive bias output signal depending on input signal power level. As the input power level goes up, the adaptive bias circuit may increase the bias voltage or bias current of the adaptive bias output signal. A power amplifier (e.g., a differential amplifier) may be biased according to the adaptive bias output signal in order to reduce current consumption at low power operation levels.
    Type: Application
    Filed: November 17, 2009
    Publication date: June 17, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS COMPANY
    Inventors: Dong Ho Lee, Kyu Hwan An, Jeonghu Han, Chang-Ho Lee, Joy Laskar
  • SEMICONDUCTOR MEMORY DEVICE INCLUDING RESET CONTROL CIRCUIT
    Publication number: 20100149891
    Abstract: A semiconductor memory device for use in a system includes a reset signal generator for generating a reset entry signal and a reset exit signal respectively in response to a start timing and a termination timing of a reset operation of the system; and a reset controller for performing a precharge operation in response to the reset entry signal and a refresh operation in response to the reset exit signal.
    Type: Application
    Filed: March 1, 2010
    Publication date: June 17, 2010
    Inventors: Chang-Ho Do, Yong-Ki Kim
  • Systems, methods and apparatuses for high power complementary metal oxide semiconductor (CMOS) antenna switches using body switching and external component in multi-stacking structure
    Patent number: 7738841
    Abstract: Embodiments of the invention may provide for a CMOS antenna switch, which may be referred to as a CMOS SPDT switch. The CMOS antenna switch may operate at a plurality of frequencies, perhaps around 900 MHz, 1.9 GHz and 2.1 GHz according to an embodiment of the invention. The CMOS antenna switch may include both a receiver switch and a transmit switch. The receiver switch may utilize a multi-stack transistor with body substrate switching and attachment of external capacitor between drain and gate to block high power signals from the transmit path as well as to maintain low insertion loss at the receiver path. Exemplary embodiments of the CMOS antenna switch may provide for 38 dBm P 0.1 dB at multi bands (e.g., 900 MHz, 1.8 GHz, and 2.1 GHz). In addition, ?60 dBc second and third harmonic performance up to 30 dBm input, may be obtained according to example embodiments of the invention.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: June 15, 2010
    Assignees: Samsung Electro-Mechanics, Georgia Tech Research Corporation
    Inventors: Minsik Ahn, Chang-Ho Lee, Jaejoon Chang, Wangmyong Woo, Haksun Kim, Joy Laskar
  • Dendritic Photoactive Compound Comprising Oxime Ester And Method For Preparing The Same
    Publication number: 20100145068
    Abstract: The present invention relates to a dendritic photoactive compound that comprises oxime ester and a method for producing the same. Since the compound according to the present invention comprises two or more oxime ester groups and chromophores in one molecule at the same time, the solubility in respects to the organic solvent and the efficiency for producing a radical by absorbing ultraviolet rays are excellent.
    Type: Application
    Filed: July 15, 2008
    Publication date: June 10, 2010
    Inventors: Keon-Woo Lee, Chang-Ho Cho, Kyoung-Hoon Min, Raisa Kharbash, Chang-Soon Lee, Sung-Hyun Kim
  • ELECTRONIC DEVICE WITH TOUCH PANEL
    Publication number: 20100142133
    Abstract: An electronic device with touch panel has a main body, a touch panel, a case and a joint unit wherein the touch panel is pivoted on the main body and the joint unit is connected between the main body and the case. The main body has a display with an active area, and the case has a plurality of patterns. Consequently, the touch panel is capable of being positioned on the active area or the patterns of the case for the user to operate on the active area directly or patterns in the form of a keyboard.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 10, 2010
    Inventors: Wen-Chun WANG, Chin-Chang Liu, Kun-Chang Ho, Chih-Jung Teng
  • Process for Sugar Production from Lignocellulosic Biomass Using Alkali Pretreatment
    Publication number: 20100143974
    Abstract: We have discovered a new method to treat biomass with alkali, for example lime. The lime and lignin was sufficiently removed from the treated biomass b> squeezing with a high pressure device to remove alkali and other potential inhibitors of the cellulase enzymes added for saccha?fication. The resulting fibrous material was rapidly solubilzed by cellulases, even at solid loads ranging from 10 to 30% (w/w) without inhibitory effects on the cellulase activity. The lime pretreatment removed lignin effectively and left the cellulose and hemicellulose almost intact. The method yielded a biomass with structure capable of being enzyme solubilzed and fermented readily at a solids loading of 10-30% for a production of ethanol.
    Type: Application
    Filed: January 31, 2008
    Publication date: June 10, 2010
    Inventors: Chang-Ho Chung, Donal F. Day
  • Method and devices for rapid diagnosis of foot-and-mouth disease
    Patent number: 7732145
    Abstract: A rapid immunoassay method and apparatus for detecting foot and mouth disease virus are disclosed. The method and test device permit pen-side testing of animals and provide test results within a relatively short time period. In a preferred embodiment, the method and apparatus provide a means for differentiating between FMDV-infected and FMDV-vaccinated animals.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: June 8, 2010
    Assignees: Princeton Biomeditech Corporation, Republic of Korea (National Veterinary Research & Quarantine Service)
    Inventors: Je-Mo Kang, Nam-Kyu Shin, In-Soo Cho, Bang-Hun Hyun, Kwang-Nyeong Lee, Jae-Ku Oem, Soo-Jeong Kye, Young-Joon Ko, Bok-Kyung Ku, Soo-Hwan An, In-Joong Kim, Ok-Kyung Kim, Hee-Jong Kim, Ki-Yong Jang, Suh-Ha Hwang, Chang-Ho Kim, Song-Woo Ko, Yi-Seok Joo
  • Triazine-based compound, method of making the same, and an organic light-emitting device including the same
    Patent number: 7732598
    Abstract: A triazine-based compound having three biphenyl groups, represented by Structure 1, below, wherein R1 through R18 are each independently one of: hydrogen, a substituted C1-30 alkyl group, an unsubstituted C1-30 alkyl group, a substituted C6-50 aryl group, an unsubstituted C6-50 aryl group, a substituted C4-50 heteroaryl group, and an unsubstituted C4-50 heteroaryl group, and at least one of R1, R2, R7, R8, R13 and R14 is one of: a substituted C1-30 alkyl group, an unsubstituted C1-30 alkyl group, a substituted C6-50 aryl group, an unsubstituted C6-50 aryl group, a substituted C4-50 heteroaryl group, and an unsubstituted C4-50 heteroaryl group.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: June 8, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jung-Han Shin, Seok-Jong Lee, Chang-ho Lee, Seok Hwan Hwang, Seung-Gak Yang, Young-Kook Kim, Hee-Yeon Kim