Patents Assigned to Postech Foundation
  • Patent number: 9219198
    Abstract: A method for forming a metal electrode and a method for manufacturing semiconductor light emitting elements include providing a substrate having a semiconductor layer formed thereon; forming a bonding metal layer and a reflective metal layer on the semiconductor layer; and forming a metal electrode by layer inversion of the bonding metal layer and the reflective metal layer through a heat treatment process. An interface characteristic between a semiconductor layer and an electrode having a reflective metal layer is enhanced by a layer inversion phenomenon. High reflectivity can be obtained, because a reflection metal layer is uniformly distributed on a semiconductor layer. Further, out-diffusion of a reflective metal layer is prevented through layer inversion to enhance the thermal stability of an electrode. And the number of accepters for generating holes is increased through heat treatment under an oxygen atmosphere, so that contact resistance can be lowered.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: December 22, 2015
    Assignees: Seoul Viosys Co., Ltd., Postech Foundation
    Inventors: Jong-Lam Lee, Ho Won Jang
  • Patent number: 8975215
    Abstract: The present invention relates to methods for producing an oligonucleotide on a solid substrate surface and methods for using the same. Some aspects of the invention provide methods for selecting a single DNA molecule reproducibily with an atomic force microscope (AFM).
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: March 10, 2015
    Assignees: Postech Foundation, Posco
    Inventors: Joon Won Park, Bong Jin Hong, Duk Hoe Kim
  • Patent number: 8785724
    Abstract: The present invention relates to a flowering-time and/or stem elongation regulator isolated from rice, which is selected from OsMADS50, OsMADSS1, OsMADS56, OsMADS14, OsTRX1, OsVIN1, OsCOL4 and OsCOLS, a DNA construct containing the regulator, a transgenic plant, a part thereof, and plant cell transformed with the DNA construct, and method to control flowering-time and/or stem elongation using the regulator. In the present invention, the flowering-time and/or stem elongation can be controlled, and thereby, various agricultural benefits obtained.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: July 22, 2014
    Assignees: Posco, Postech Foundation
    Inventors: Gynheung An, Shinyoung Lee, Dong-Hoon Jeong, JiHye Yoo, Choong-Hwan Ryu, Jong-Seong Jeon, Sung-Ryul Kim, Young-Ock Kim, Joonyul Kim, Suyoung An, Jong-Jin Han, Min-Jung Han
  • Patent number: 8673621
    Abstract: The present patent application describes a cantilever for atomic force microscopy (AFM), which includes a cantilever body having a fixed end and a free end, the free end having a surface region being chemically modified by a dendron in which a plurality of termini of the branched region of the dendron are bound to the surface, and a terminus of the linear region of the dendron is functionalized.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: March 18, 2014
    Assignees: POSTECH Foundation, POSCO
    Inventors: Joon Won Park, Yu Jin Jung, Bong Jin Hong, Saul Tendler, Stephanie Allen
  • Patent number: 8647823
    Abstract: The present invention relates to a method for the synthesis of a polynucleotide on a modified surface of a substrate, wherein the modified surface is obtained by chemically modifying with macromolecules in which a plurality of termini of the branched region are bound to the surface and a terminus of the linear region is functionalized.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: February 11, 2014
    Assignees: Postech Foundation, Posco
    Inventors: Joon-Won Park, Bong-Jin Hong
  • Patent number: 8383375
    Abstract: The present invention relates to a novel thermostable gluconate dehydratase from the thermoacidophilic archaeon Sulfolobus solfataricus, a coding sequence, and an expression system. The gluconate dehydratase has a molecular weight of about 320,000 to 380,000 daltons as the native protein, and about 40,000 to 50,000 daltons as the monomer protein, and catalyzes the dehydration reaction of aldonic acids to 2-keto-3-deoxy derivatives at temperatures of less than 120° C. The gluconate dehydratase can be produced from native or recombinant host cells and thereby used in the pharmaceutical, agricultural, and other industries.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: February 26, 2013
    Assignees: Posco, Postech Foundation
    Inventors: Seonghun Kim, Sun Bok Lee
  • Patent number: 8274094
    Abstract: The present invention relates to a gallium nitride (GaN) compound semiconductor light emitting element (LED) and a method of manufacturing the same. The present invention provides a vertical GaN LED capable of improving the characteristics of a horizontal LED by means of a metallic protective film layer and a metallic support layer. According to the present invention, a metallic protective film layer with a thickness of at least 10 microns may be formed on the lateral and/or bottom sides of the vertical GaN LED. Further, a metallic substrate may be used instead of a sapphire substrate. A metallic support layer may be formed to protect the element from being distorted or damaged. Furthermore, a P-type electrode may be partially formed on a P—GaN layer in a mesh form.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: September 25, 2012
    Assignees: Seoul Opto Device Co., Ltd., Postech Foundation
    Inventor: Jong Lam Lee
  • Patent number: 8263997
    Abstract: The present invention relates to a method of forming an ohmic electrode in a semiconductor light emitting element, comprising: forming a semiconductor layer having a light emitting structure on a substrate, sequentially laminating a bonding layer, a reflective layer and a protective layer on the semiconductor layer, and forming an ohmic electrode by performing a heat treatment process to form ohmic bonding between the semiconductor layer and the bonding layer and to form an oxide film on at least a portion of the protective layer; and a semiconductor light emitting element using the ohmic electrode. According to the present invention, since a reflective layer is formed of Ag, Al and an alloy thereof with excellent light reflectivity, the light availability is enhanced. Further, since contact resistance between a semiconductor layer and a bonding layer is small, it is easy to apply large current for high power.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: September 11, 2012
    Assignees: Seoul Opto Device Co., Ltd., Postech Foundation
    Inventor: Jong-Lam Lee
  • Patent number: 8173395
    Abstract: The present invention relates to a bioadhesive derived from mussel. In particular, it relates to a novel Mytilus galloprovincialis foot protein type 5 (MGFP-5) and a recombinant protein that is a hybrid of MGFP-5 and foot protein type 1 (FP-1), where an adhesive protein with adhesive activity can be economically mass-produced to be used in place of chemical adhesives through the present invention.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: May 8, 2012
    Assignees: Postech Foundation, POSCO
    Inventors: Hyung Joon Cha, Dong Soo Hwang
  • Patent number: 8161798
    Abstract: The disclosed is a density sensing device of a fuel cell system and a fuel cell system having the density sensing device. The density sensing device includes a density sensor that includes a collision sensor and a variable resistor coupled to the collision sensor. The collision sensor is dipped into a fuel solution, and the collisions of molecules of the fuel solution are detected in the collision sensor. The resistance of the variable resistor varies depending on an amount of the collision detected by the collision sensor. The resistance further is converted to a density by the use of a table that includes a relationship between resistance and density. The density sensing device can further include a sensor driver. The sensor driver can be a piezoelectric member that is attached to the collision sensor. The collision sensor vibrates together with the piezoelectric member when a driving signal is applied to the piezoelectric member, which improves the accuracy of the measurement of the density.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: April 24, 2012
    Assignees: Samsung SDI Co., Ltd., Postech Foundation
    Inventors: Won-Hyouk Jang, Do-Young Kim, Si-Hyun Lee, Jung-Kurn Park, Myeong-Ju Ha, Sang-Min Jeon
  • Patent number: 8154206
    Abstract: There is provided a small-sized portable microwave plasma generator capable of generating plasma at atmospheric pressure with low electric power including a coaxial cable, an outer conductor, a connection conductor, and a connection member. The coaxial cable includes a first inner conductor and a dielectric material encircling the first inner conductor. The outer conductor encircles the coaxial cable. The connection conductor includes at least one gas inlet tube. The connection conductor electrically connects between the first inner conductor and the outer conductor at one end of the coaxial cable. The connection member includes a second inner conductor passing through the outer conductor and then connecting to the first inner conductor.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: April 10, 2012
    Assignees: Postech Foundation, Postech Academy Industry Foundation
    Inventors: Jun Choi, Felipe Iza, Jae Koo Lee
  • Patent number: 8143640
    Abstract: The present invention relates to a gallium nitride (GaN) compound semiconductor light emitting element (LED) and a method of manufacturing the same. The present invention provides a vertical GaN LED capable of improving the characteristics of a horizontal LED by means of a metallic protective film layer and a metallic support layer. According to the present invention, a thick metallic protective film layer with a thickness of at least 10 microns is formed on the lateral and/or bottom sides of the vertical GaN LED to protect the element against external impact and to easily separate the chip. Further, a metallic substrate is used instead of a sapphire substrate to efficiently release the generated heat to the outside when the element is operated, so that the LED can be suitable for a high-power application and an element having improved optical output characteristics can also be manufactured. A metallic support layer is formed to protect the element from being distorted or damaged due to impact.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: March 27, 2012
    Assignees: Seoul Opto Device Co., Ltd., Postech Foundation
    Inventor: Jong Lam Lee
  • Patent number: 8137674
    Abstract: The present invention relates to a fusion protein comprising a fusion polypeptide of E6 and E7 of a human papilloma virus, a signal peptide for secreting the polypeptide out of the cell, and an immune enhancing peptide for a subject; a polynucleotide encoding the fusion protein; and a vector containing the polynucleotide. The present invention further relates to a pharmaceutical composition comprising the fusion protein or the vector; and a method for treating a disease caused by a human papilloma virus using the pharmaceutical composition.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: March 20, 2012
    Assignees: Postech Foundation, Genexine Co., Ltd.
    Inventors: Young Chul Sung, Hyun Tak Jin, Sang Hwan Seo, Sang Hoon Park, Je-In Youn
  • Patent number: 8107904
    Abstract: An apparatus and a method for an Envelope Elimination and Restoration (EER) power transmitter are provided. The apparatus includes a signal separator for splitting a transmit signal to an amplitude component and a phase component, an orthogonal modulator for modulating the phase component into a Radio Frequency (RF) signal, a bias modulator for linearly amplifying the amplitude component, for determining a bias voltage according to a magnitude of the amplitude component, and for providing a current generated using the determined bias voltage to a high-efficiency power amplifier and the high-efficiency power amplifier for amplifying the RF signal using the linearly amplified amplitude component as a drain bias voltage and using the generated current as a drain bias current.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: January 31, 2012
    Assignees: Samsung Electronics Co., Ltd., Postech Foundation
    Inventors: Cheol-Woo Ahn, Keun-Hyo Song, Cheol-Soo Seo, Young-Yoon Woo, Bum-Man Kim, Il-Du Kim
  • Patent number: 8058413
    Abstract: The inventive molecular transporter compound shows significantly high permeability through a biological membrane such as a plasma membrane, nuclear membrane and blood-brain barrier, and accordingly, can be effectively used in delivering various biologically active molecules.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: November 15, 2011
    Assignees: Postech Foundation, Postech Academy-Industry Foundation
    Inventors: Sung-Kee Chung, Kaustabh Kumar Maiti, Woo Sirl Lee, Ock-Youm Jeon, Seok-Ho Lee
  • Patent number: 8058451
    Abstract: Provided are hydroxycucurbituril derivatives, their preparation methods and uses. The hydroxycucurbituril derivative is easy to further functionalize with enhanced solubility in common solvents, thereby providing wider applications.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: November 15, 2011
    Assignee: Postech Foundation
    Inventors: Ki-Moon Kim, Sang-Yong Jon, Narayanan Selvapalam, Dong-Hyun Oh
  • Patent number: 8048996
    Abstract: The inventive molecular transporter compound shows significantly high permeability through a biological membrane such as a plasma membrane, nuclear membrane and blood-brain barrier, and accordingly, can be effectively used in delivering various biologically active molecules.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: November 1, 2011
    Assignees: Postech Foundation, Postech Academy-Industry Foundation
    Inventors: Sung-Kee Chung, Kaustabh Kumar Maiti, Woo Sirl Lee, Ock-Youm Jeon, Seok-Ho Lee
  • Patent number: 8039861
    Abstract: The present invention relates to a gallium nitride (GaN) compound semiconductor light emitting element (LED) and a method of manufacturing the same. The present invention provides a vertical GaN LED capable of improving the characteristics of a horizontal LED by means of a metallic protective film layer and a metallic support layer. According to the present invention, a thick metallic protective film layer with a thickness of at least 10 microns is formed on the lateral and/or bottom sides of the vertical GaN LED to protect the element against external impact and to easily separate the chip. Further, a metallic substrate is used instead of a sapphire substrate to efficiently release the generated heat to the outside when the element is operated, so that the LED can be suitable for a high-power application and an element having improved optical output characteristics can also be manufactured. A metallic support layer is formed to protect the element from being distorted or damaged due to impact.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: October 18, 2011
    Assignees: Seoul Opto Device Co., Ltd., Postech Foundation
    Inventor: Jong Lam Lee
  • Patent number: 8008101
    Abstract: The present invention relates to a gallium nitride (GaN) compound semiconductor light emitting element (LED) and a method of manufacturing the same. The present invention provides a vertical GaN LED capable of improving the characteristics of a horizontal LED by means of a metallic protective film layer and a metallic support layer. According to the present invention, a thick metallic protective film layer with a thickness of at least 10 microns is formed on the lateral and/or bottom sides of the vertical GaN LED to protect the element against external impact and to easily separate the chip. Further, a metallic substrate is used instead of a sapphire substrate to efficiently release the generated heat to the outside when the element is operated, so that the LED can be suitable for a high-power application and an element having improved optical output characteristics can also be manufactured. A metallic support layer is formed to protect the element from being distorted or damaged due to impact.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: August 30, 2011
    Assignees: Seoul Opto Device Co., Ltd., Postech Foundation
    Inventor: Jong-Lam Lee
  • Patent number: 8005031
    Abstract: A method and apparatus for transmitting and receiving a signal in a wireless communication system. The wireless communication system includes a transmitter with at least four transmit antennas and a receiver with at least one receive antenna. Space Frequency Block Coding (SFBC) processes are performed for input signals on a basis of two antenna pairs. Signal blocks whose number corresponds to the number of transmit antennas are output. A Space Time Block Coding (STBC) process is performed for the signal blocks generated according to the antenna pairs. Signals carried by single carriers are transmitted through the at least four transmit antennas mapped to the signal blocks.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: August 23, 2011
    Assignees: Samsung Electronics Co., Ltd., Postech Foundation
    Inventors: Tae-Won Yune, Jong-Hyeuk Lee, Gi-Hong Im, Eung-Sun Kim, Jong-Hyung Kwun