Patents Assigned to Yeungnam University
  • Patent number: 9722523
    Abstract: The present invention relates to an inverter vector driving system and a method for estimating capacitance using the same. The present invention provides a method for estimating capacitance in an inverter vector driving system including a capacitor to which a rectified DC voltage of a three-phase power supply is charged, and a PWM inverter configured to transform the DC voltage into a three-phase AC voltage to be applied to a motor of an induction motor, including: operating the motor of the IM in a regeneration mode; generating a d-axis voltage command and a q-axis voltage command for the motor; adjusting a pulse of the PWM inverter by using the d-axis voltage command and the q-axis voltage command; and estimating capacitance of the capacitor by using a DC-link voltage and a DC-link current that are generated at the capacitor due to the inclusion of the AC component.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: August 1, 2017
    Assignee: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Dong-Choon Lee, Thanh Hai Nguyen, Yoon-Cheul Jeung
  • Patent number: 9629950
    Abstract: An exterior cap of transfer set for peritoneal dialysis, including: a cylindrical cap unit to which the end connector of the peritoneal transfer set is coupled; a guide unit that is coupled to the cap unit, extends to the peritoneal transfer set to provide an expanding internal space, and guides the end connector of the peritoneal transfer set into the cap unit; and a coupling-separating unit that combines the cap unit and the guide unit with each other and separates the cap unit and the guide unit in accordance with selection of a user.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: April 25, 2017
    Assignee: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Jong Won Park, Sang Ho Ahn, Joon Ha Lee, Il Gwon Jung
  • Publication number: 20170053750
    Abstract: Provided is a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam as high-performance electrode materials for supercapacitors and a method for preparing the same, and the electrode comprising a three-dimensional nickel cobalt oxide/graphene on nickel foam exhibited an ultrahigh specific capacitance of 2,260 F/g at a current density of 1 A/g.
    Type: Application
    Filed: August 17, 2016
    Publication date: February 23, 2017
    Applicant: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Jae-Jin SHIM, Van Hoa Nguyen
  • Publication number: 20170020141
    Abstract: The present invention relates to a peptide having a fungicidal activity, isolated from Lactobacillus plantarum YML007, and provides a fungicidal peptide comprising the amino acid sequence of SEQ ID NO: 1. In addition, the present invention provides a fungicidal composition or a composition for food preservation, containing the peptide as an active ingredient. The peptide of the present invention has a wide range of fungicidal activities, and thus can be applied, by using the same, to various fields such as a microbial preparation related to fungicidal activity, an agent for controlling pathogenic fungi, a preservative for food including feed, and the future development of medical supplies related to fungi.
    Type: Application
    Filed: April 29, 2014
    Publication date: January 26, 2017
    Applicant: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Yong Ha PARK, Irfan Ahmad RATHER, Byoung Joo SEO, Uk Han CHOI, Kwang Ho CHOI
  • Publication number: 20160354352
    Abstract: Provided is a method of treating inflammatory bowel disease comprising administering a pharmaceutical composition comprising a 6-aminopyridin-3-ol compound or a pharmaceutically acceptable salt thereof as an active ingredient to a subject, which inhibits colitis in a model of inflammatory bowel disease, and accordingly, they may be suitable for use as a drug for the prevention or treatment of inflammatory bowel disease.
    Type: Application
    Filed: August 16, 2016
    Publication date: December 8, 2016
    Applicant: Research Cooperation Foundation of Yeungnam University
    Inventors: Byeong Seon JEONG, Jung Ae KIM, Dong Guk KIM, You Ra KANG, Tae Gyu NAM
  • Patent number: 9505757
    Abstract: Disclosed is a pharmaceutical composition including a bicyclic pyridinol derivative as an active ingredient for preventing or treating diseases caused by angiogenesis. The bicyclic pyridinol derivative expressed by Chemical Formula 1 can be effectively used as a drug for preventing and treating diseases caused by angiogenesis since it inhibits neovascularization in a chorioallantoic membrane model.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: November 29, 2016
    Assignee: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Byeong Seon Jeong, Jung Ae Kim, You Ra Kang, Tae Gyu Nam, Jin Mo Ku, Ned A. Porter
  • Patent number: 9503172
    Abstract: Disclosed are dual mode beamforming methods and apparatuses for the same. An exemplary embodiment of the dual mode beamforming method may comprise obtaining a boundary equation generated based on mean channel gains (MCGs) and spatial correlation coefficients (SCCs) for a plurality of antennas of a plurality of base station; obtaining, from the plurality of base stations, MCGs of respective antennas equipped in each of the plurality of base stations and a SCC of a plurality of antennas equipped in at least one base station of the plurality of base stations; and determining a beamforming mode based on the boundary equation, the MCGs and SCCs obtained from the plurality of base stations. Therefore, a co-located beamforming or a distributed beamforming can be performed selectively according to a radio communication environment.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: November 22, 2016
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YEUNGNAM UNIVERSITY
    Inventors: Kwon Hue Choi, Jin Hui Lee, Amini Sahar
  • Publication number: 20160315222
    Abstract: The present invention provides a patterned substrate for gallium nitride-based light emitting diode, comprising: a patterned substrate having patterns, wherein the plurality of patterns are circle type having diameters (d) and the distances between the centers of the patterns are pitches (p), and the cross sections of the patterns are extruded shapes and have heights (h), and wherein the value of [diameter (d)/pitch (p)] is larger than (2.6)/3, and equal or smaller than 3/3.
    Type: Application
    Filed: October 27, 2015
    Publication date: October 27, 2016
    Applicant: Research Cooperation Foundation of Yeungnam University
    Inventors: Si Hyun Park, Hao Cui
  • Publication number: 20160287754
    Abstract: Disclosed is a method for preparing a bilayer scaffold through single process comprising: preparing a first polymer aqueous solution; adding a second polymer into the first polymer aqueous solution and stirring a reactant; adding a surfactant into the stirred reactant and stirring the reactant at high temperature and high speed; freeze-drying the stirred reactant thereby obtaining a sponge; dipping the sponge in a cross-linking agent thereby rendering be cross-linked; and freeze-drying the cross-linked reactant.
    Type: Application
    Filed: July 16, 2013
    Publication date: October 6, 2016
    Applicant: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Sung Soo HAN, Soon Mo CHOI, Deep Ti SINGH
  • Publication number: 20160282392
    Abstract: The present invention relates to an inverter vector driving system and a method for estimating capacitance using the same. The present invention provides a method for estimating capacitance in an inverter vector driving system including a capacitor to which a rectified DC voltage of a three-phase power supply is charged, and a PWM inverter configured to transform the DC voltage into a three-phase AC voltage to be applied to a motor of an induction motor, including: operating the motor of the IM in a regeneration mode; generating a d-axis voltage command and a q-axis voltage command for the motor; adjusting a pulse of the PWM inverter by using the d-axis voltage command and the q-axis voltage command; and estimating capacitance of the capacitor by using a DC-link voltage and a DC-link current that are generated at the capacitor due to the inclusion of the AC component.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 29, 2016
    Applicant: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Dong-Choon LEE, Thanh Hai NGUYEN, Yoon-Cheul JEUNG
  • Patent number: 9454550
    Abstract: A Database method for a B+ tree based on a PRAM. The database method divides each node into two areas, area 1 and area 2. A key value is inserted/retrieved/deleted for the each node. Inserting the key value requires firstly inserting a new key value to area 2 if area 2 in the node is not in a full state. Retrieving the key value requires identifying whether the node is a leaf node. If the node is a leaf node, the key value is retrieved from area 1 and area 2 sequentially. Deleting the key value requires merging area 1 and area 2 in the node, and deleting the key value in the merged node. The method enhances durability and data processing capability.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: September 27, 2016
    Assignees: INDUSTRY ACADEMIC COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY, ADVANCED INSTITUTES OF CONVERGENCE TECHNOLOGY
    Inventors: Gyu Sang Choi, Byung-Won On, In Gyu Lee
  • Patent number: 9452159
    Abstract: A method or composition including 6-aminopyridin-3-ol derivatives or pharmaceutically acceptable salts thereof for treating a disease caused by angiogenesis, the 6-aminopyridin-3-ol derivatives represented by Formula 1 or the pharmaceutically acceptable salts thereof have excellent neoangiogenesis inhibition effects in the chorioallantoic membrane model, and are suitable for use as a drug for the treatment of disease caused by angiogenesis.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 27, 2016
    Assignee: RESEARCH COOPERATION OF YEUNGNAM UNIVERSITY
    Inventors: Byeong Seon Jeong, Jung Ae Kim, Dong Guk Kim, You Ra Kang, Tae Gyu Nam
  • Publication number: 20160267333
    Abstract: The present application relates to a system for location measurement and night-time forward vehicle detection using a single multi-exposure camera and method thereof which use a long exposure and short exposure frame images among four exposure methods of a multi-exposure camera and applies a binarization method which use a local adaptive threshold value, and also applies a BLOB (Binary Large Objects) matching method which detects an identical candidate BLOB from a different exposure frame image thereby, enables further accurate detection and location measurement of a forward vehicle during night-time drive.
    Type: Application
    Filed: September 18, 2014
    Publication date: September 15, 2016
    Applicant: Industry Academic Cooperation Foundation of Yeungnam University
    Inventors: Ho Youl JUNG, Hee Yong LEE, Dal Hyun JANG, Seung Hwan LEE, Chang Hyeon PARK
  • Patent number: 9321688
    Abstract: Disclosed is a method for preparing polycrystalline aluminum oxynitride having enhanced transparency, and preparing polycrystalline aluminum oxynitride by sintering a powder mixture of Al2O3 and AlN under atmospheric pressure, wherein the content of AlN is set to 17 to 26 mol %, a first sintering is performed at 1,575° C. to 1,675° C. so as to enable raw-material powders to have a relative density of 95% or higher, and a second sintering is performed so as to enable the raw-material powders to have a higher relative density.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: April 26, 2016
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YEUNGNAM UNIVERSITY
    Inventors: Jae Hyung Lee, Ji Hye Kim, Bo Hoon Han, In Chul Jung
  • Publication number: 20160068489
    Abstract: The present invention relates to an amidopyridinol derivative or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition including an amidopyridinol derivative or a pharmaceutically acceptable salt thereof as an active component. An amidopyridinol derivative represented by Chemical Formula 1 or a pharmaceutically acceptable salt thereof has an excellent antiangiogenic effect in a chorioallantoic membrane model, and thus is useful as an agent for preventing or treating diseases associated with angiogenesis, such as macular degeneration or arthritis, and also has an excellent colitis-inhibitory effect in a model of inflammatory bowel diseases, and thus is useful as an agent for preventing or treating inflammatory bowel diseases.
    Type: Application
    Filed: April 21, 2014
    Publication date: March 10, 2016
    Applicant: Research Cooperation Foundation of Yeungnam University
    Inventors: Byeong Seon JEONG, Jung Ae KIM, Tae gyu NAM, Hyun Ji LEE, Dong Guk KIM, You Ra KANG, Jae Hui BEEN, You Jin JIN, Sushil Chandra REGMI, Jaya GAUTAM
  • Patent number: 9277172
    Abstract: The present disclosure relates to an apparatus for an eye contact video call capable of a realistic call in eye contact with the other party. A transparent display is formed at a central part of the opaque display and a camera is formed at a rear side thereof, thereby allowing a realistic call in eye contact with the other party and at the same time, the readability to be improved even in cases of a usual display use (mode). Further, the manufacturing cost of a terminal may be reduced and an interference of an output video of a transparent display that exists in the camera photograph video may also be effectively eliminated.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: March 1, 2016
    Assignee: INDUSTRY ACADEMIC COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventor: Kwonhue Choi
  • Patent number: 9206165
    Abstract: Provided are novel tetrazolo hydrazone derivatives or pharmaceutically acceptable salts thereof. The derivatives and the salts may inhibit the proliferation of cancer cells in a low molar concentration and inhibit the activity of cancer cells through the regulation of expression of apoptosis-related genes or the like, thus expressing excellent anti-cancer activity, and therefore, can be used effectively in preventing or treating cancer.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: December 8, 2015
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YEUNGNAM UNIVERSITY
    Inventors: In Ho Choi, Athar Fareeda, Roouf Bhat Abdul
  • Patent number: 9154340
    Abstract: Disclosed is a method of cancelling inter-subcarrier interferences in distributed antenna system. A method of cancelling interference performed in a transmitting station may include configuring a least one Alamouti pair by mapping subcarrier to each of input symbols, performing a 2N-point inverse fast Fourier transform (IFFT) on the at least one Alamouti pair, wherein the N is a natural number, and performing a frequency up converting on signals on which the 2N-point IFFT performed. Therefore, the inter-subcarrier interferences can be canceled efficiently.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: October 6, 2015
    Assignees: POSTECH ACADEMY-INDUSTRY FOUNDATION, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YEUNGNAM UNIVERSITY
    Inventors: Kwon Hue Choi, Bong Seok Kim
  • Patent number: 9137060
    Abstract: Disclosed are a method of cancelling inter-subcarrier interference in a distributed antenna system, and a device for performing the same. The method of cancelling the interference performed in a receiver includes: generating a first signal and a second signal by performing a fast Fourier transform (FFT) operation on a received signal received from a first transmission antenna and a second transmission antenna; acquiring first symbols by combining the first signal and the second signal; generating a first interference signal and a second interference signal based on the first symbols; generating a third signal by cancelling the first interference signal from the first signal, and generating a fourth signal by cancelling the second interference signal from the second signal; and acquiring second symbols by combining the third signal and the fourth signal.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: September 15, 2015
    Assignees: POSTECH ACADEMY—INDUSTRY FOUNDATION, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YEUNGNAM UNIVERSITY
    Inventors: Bong Seok Kim, Kwon Hue Choi
  • Patent number: 9124478
    Abstract: Disclosed are a method for cancelling inter-subcarrier interferences and an apparatus for the same. The method according to an example embodiment may comprise dividing total available subcarriers into a plurality of sub-blocks, composing Alamouti code symbol pairs by mapping input symbols to subcarriers included in each of the plurality of sub-blocks, and performing inverse fast Fourier transform (IFFT) on the Alamouti code symbol pairs. Therefore, inter-subcarrier interferences due to frequency error between transmit antennas of a distributed antenna system or a cooperative transmission apparatus may be cancelled in the frequency selective fading channel environment.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: September 1, 2015
    Assignees: POSTECH ACADEMY-INDUSTRY FOUNDATION, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YEUNGNAM UNIVERSITY
    Inventors: Kwon Hue Choi, Bong Seok Kim