Patents by Inventor Chan KWON

Chan KWON 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).

  • Patent number: 8614285
    Abstract: Disclosed is a novel photosensitizer based on polymer derivatives-photosensitizer conjugates for photodynamic therapy capable of being selectively accumulated in cancerous tissues and producing singlet oxygen or free radical by laser irradiation. The polymer derivatives-photosensitizer conjugates for photodynamic therapy are prepared as nano-sized particles, and have excellent selection and accumulation ratio for cancerous tissues. The photosensitizer conjugates can produce singlet oxygen or free radical by a specific laser wavelength. Owing to the excellent selection and accumulation ratio for cancerous tissues, the conjugates minimizes photo-cytotoxicity of the conventional photosensitizer having a low molecular amount. Accordingly, the conjugates are very useful as a photosensitizes for photodynamic therapy with reduced side effects and excellent therapeutic effectiveness.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: December 24, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: Ick-Chan Kwon, Kui-Won Choi, Kwang-Meyung Kim, In-Chan Youn, Jong-Ho Kim, Kyeong-Soon Park
  • Publication number: 20130338422
    Abstract: The present invention relates to an anticancer prodrug consisting of peptide of acetyl-SEQ ID NO: 1-linker-anticancer drug. The anticancer prodrug effectively provides an anticancer drug unstable in acid or base, such as doxorubicin, in a form of prodrug. Thus, the anticancer prodrug exists as a non-toxic inactive form when administered into the body, but effectively releases the anticancer drug as an active ingredient in the target area in the presence of caspase activated by radiation or UV treatment after administered into the body. Accordingly, the anticancer drug exhibits selective anticancer effects on cancer cells, thereby maximizing the therapeutic effect and minimizing the side-effects of chemotherapy.
    Type: Application
    Filed: March 2, 2011
    Publication date: December 19, 2013
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ju-Hee Ryu, Kwang-Meyung Kim, Ick-Chan Kwon, Kui-Won Choi, Sang-Yoon Kim, Beom-Suk Lee, Dae-Yoon Chi, Hee-Seup Kil, Hyun-Ju Sung
  • Publication number: 20130323177
    Abstract: A tumor-targeting gas-generating nanoparticle, a method for preparing same and a tumor-targeting nanoparticle for drug delivery using same relate to a tumor-targeting gas-generating nanoparticle including a polycarbonate core and a amphiphilic coat, a method for preparing same and a tumor-targeting nanoparticle for drug delivery using same. Since a tumor-targeting gas-generating nanoparticle according to the present disclosure is accumulated in the tumor tissue in large quantity and generates strong ultrasound wave signals, it can be usefully used as a contrast agent for ultrasonic imaging.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 5, 2013
    Inventors: Ick Chan Kwon, Kwang Meyung Kim, Kuiwon Choi, Heebeom Koo, Hyun Su Min, Inchan Youn
  • Publication number: 20130290890
    Abstract: A method of displaying a function of a button of an ultrasound apparatus on the button includes displaying information about one or more functions provided by the ultrasound apparatus, selecting one from among the one or more functions which have been displayed, determining a button in which the selected function is to be set based on an external input signal for matching the selected function to the button in which the selected function is to be set; and displaying information about the selected function on the determined button.
    Type: Application
    Filed: October 31, 2012
    Publication date: October 31, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chi-young Ahn, Jong-chan Kwon, Ki-soo Kim, Jung-hoon Kim, Sang-min Hyun
  • Patent number: 8565606
    Abstract: A system for acquiring data of a multi-channel superconducting quantum interference device (SQUID) signal includes a digital converter connected to a SQUID sensor having a plurality of channels and configured to receive a voltage signal output from the plurality of channels and generate a channel-voltage serial digital signal having information about a channel from which the voltage signal is output and information about the voltage signal, and an optical fiber cable through which the channel-voltage serial digital signal is transmitted from the digital converter.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: October 22, 2013
    Assignee: Korea Research Institute of Standards and Science
    Inventors: Jin Mok Kim, Yong Ho Lee, Hyuk Chan Kwon, Ki Woong Kim, Kwon Kyu Yu
  • Patent number: 8566355
    Abstract: An apparatus to manage an account is provided. The account managing apparatus includes an account management unit which manages a user account of at least one user who uses an image forming apparatus, a storage unit which stores guest information related to the user account, a guest account generating unit which generates a guest account dependent on the user account based on stored guest information and the user account when a request to generate an account to use the image forming apparatus is received from a guest, and a control unit which controls the image forming apparatus according to a generated account policy.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: October 22, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yong-sik Jeong, Yong-chan Kwon, Jung-ha Kim
  • Publication number: 20130273519
    Abstract: The present invention relates to a composition for treating blood, a set of a diagnostic kit comprising the same to detect an autoimmune disease, and a method of monitoring an autoimmune disease using the same. An autoimmune disease such as rheumatoid arthritis can be early diagnosed, and disease progression and a treatment response can be precisely predicted, using a technique of amplifying enzyme by stimulating blood obtained from patient.
    Type: Application
    Filed: November 5, 2012
    Publication date: October 17, 2013
    Inventors: In Chan Youn, Kwang Meyung Kim, Kui Won Choi, Ick Chan Kwon, Jun Uk Chu, Jong Woong Park, Soo Young Yoon, Sung Jae Choi, Ae Ju Lee, Young Mo Kang
  • Patent number: 8551727
    Abstract: Disclosed are a metal nanoparticle onto which a peptide substrate specifically degraded by protease and fluorophore are chemically modified for selectively imaging protease expressed in cell and in tissue in a human body, and the use thereof. Also, a quantitative analysis method of protease using the metal nanoparticle, a cell imaging method and a drug screening method of inhibiting a protease overexpression are provided. In detail, the present invention is directed to a metal nanoparticle having a peptide substrate and fluorophore coupled thereto, the peptide substrate and the fluorophore being specifically degraded by due to a protease activated in various ways in cell and in a human body to exhibit fluorescence. Hence, the metal nanoparticle can be used to rapidly screen activation and inhibition of the protease in the imaging manner.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: October 8, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: Ick-Chan Kwon, Kui-Won Choi, Kwang-Meyung Kim, Cheol-Hee Ahn, In-Chan Youn, Seul-Ki Lee, Kyeong-Soon Park
  • Patent number: 8552551
    Abstract: Adhesive/spacer structures used to adhere a first device, such as a die, or a package, to a second device in a stacked semiconductor assembly, include a plurality of spaced-apart adhesive/spacer islands securing the first and the second devices to one another at a chosen separation. Either or both of the first and second devices can be a die; or, either or both of the devices can be a package. A package includes a die mounted onto and electrically interconnected to, a substrate, and where one package is stacked over either a lower die or a lower package, the upper package may be oriented either so that the die attach side of the upper package faces toward the lower die or lower package substrate or so that the die attach side of the upper package faces away from the lower die or lower package substrate.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: October 8, 2013
    Assignee: CHIPPAC, Inc.
    Inventors: Sang Ho Lee, Jong Wook Ju, Hyeog Chan Kwon, Marcos Karnezos
  • Publication number: 20130250922
    Abstract: Embodiments of the present invention may provide an apparatus and a method for transmitting and receiving a random access channel (RACH) in a single carrier-frequency division multiple access (SC-FDMA) system. A frequency domain RACH signal may be mapped to a localized sub-frequency band of an entire frequency band available to the SC-FDMA system. A guard band including at least one sub carrier may be allocated between the RACH signal band and other channel signal bands. A guard time may be allocated between the RACE signal and other channel signals in the time domain. The RACH signal may include a short message including information related to a mobile station. The RACH signal may be detected in a frequency based method, a time based method or a sliding matched filter based method. Receiver complexity can be decreased if the RACH signal includes a CAZAC code sequence for a preamble. In such a case, a receive delay may be simply calculated and then adjusted more accurately.
    Type: Application
    Filed: May 15, 2013
    Publication date: September 26, 2013
    Inventors: Sung Lark KWON, Dong Joo PARK, Hyuck Chan KWON, Young Kwon RYU, Hoo Young JEONG, Hong Jik KIM, Jung Seung LEE, Jae Won JANG, Byoung Seong PARK, Hee Gul PARK
  • Publication number: 20130250921
    Abstract: Embodiments of the present invention may provide an apparatus and a method for transmitting and receiving a random access channel (RACH) in a single carrier-frequency division multiple access (SC-FDMA) system. A frequency domain RACH signal may be mapped to a localized sub-frequency band of an entire frequency band available to the SC-FDMA system. A guard band including at least one sub carrier may be allocated between the RACH signal band and other channel signal bands. A guard time may be allocated between the RACE signal and other channel signals in the time domain. The RACH signal may include a short message including information related to a mobile station. The RACE signal may be detected in a frequency based method, a time based method or a sliding matched filter based method. Receiver complexity can be decreased if the RACH signal includes a CAZAC code sequence for a preamble. In such a case, a receive delay may be simply calculated and then adjusted more accurately.
    Type: Application
    Filed: May 15, 2013
    Publication date: September 26, 2013
    Inventors: Sung Lark KWON, Dong Joo Park, Hyuck Chan Kwon, Young Kwon Ryu, Hoo Young Jeong, Hong Jik Kim, Jung Seong Lee, Jae Won Jang, Byoung Seong Park, Hee Gul Park
  • Publication number: 20130251784
    Abstract: The present disclosure relates to a method for in vivo targeting of a nanoparticle via bioorthogonal copper-free click chemistry, more particularly to a method for in vivo targeting of a nanoparticle, including: injecting a precursor capable of being metabolically engineered in vivo when injected into a living system and having a first bioorthogonal functional group into the living system; and injecting a nanoparticle having a second bioorthogonal functional group which can perform a bioorthogonal copper-free click reaction with the first bioorthogonal functional group attached thereto into the living system. In accordance with the present disclosure, accumulation of nanoparticles at a target site in a living system can be increased remarkably and the biodistribution of the nanoparticles can be controlled since the nanoparticles bound to a cell surface are taken up into the cell with time.
    Type: Application
    Filed: February 22, 2013
    Publication date: September 26, 2013
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kwang Meyung KIM, Ick Chan KWON, Kuiwon CHOI, Heebeom KOO, Sang-min LEE, Inchan YOUN
  • Patent number: 8543804
    Abstract: An adaptive security policy based scalable video service apparatus includes a video streaming server, an adaptive security policy server and a terminal. The video streaming server receives a service demand via a network and generates an encrypted streaming data. The adaptive security policy server analyzes a media structure and the service demand, by using a service profile received from the video streaming server, so as to generate a security policy description. The terminal generates and transmits the service demand to the video streaming server or the adaptive security server, obtains the encrypted streaming data from the video streaming server and decrypts the encrypted streaming data for playback, storing and retransmission.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: September 24, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Hyuk Moon, Hyeok Chan Kwon, Seungmin Lee, Jae Hoon Nah, Taek Yong Nam, Dong Il Seo
  • Patent number: 8541378
    Abstract: The present invention relates to recombinant albumins fused with poly-cysteine peptide and methods for preparing the same, more precisely recombinant albumins in which cysteines that can be used for drug binding are amplified at N-terminal and C-terminal of the albumin and methods for preparing the same. The recombinant albumin of the present invention demonstrates improved albumin-drug conjugation efficiency when it is used for drug delivery system, indicating that it can effectively deliver a large amount of drug to a target tissue. At the same time, the recombinant albumin of the present invention can be used as an excellent drug deliverer with reduced side effects, compared with the conventional albumin carriers, by regulating the amount of drug conjugated to each unit of albumin by regulating the number of cysteine fused thereto.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: September 24, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: Hyung Jun Ahn, Ick Chan Kwon, Kuiwon Choi, Kwangmyeng Kim, Inchan Youn, Sehoon Kim
  • Patent number: 8530047
    Abstract: The oligonucleotide polymerization method of the present invention is advantageous in that an oligonucleotide with a small molecular weight can be easily polymerized into high-molecular weight oligonucleotides. Further, the high-molecular oligonucleotide prepared by the method of the present invention can bind to hydrophilic high-molecular materials or inorganic materials, and then can be stably delivered to a living body. Therefore, the high-molecular oligonucleotide prepared by the method of the present invention can be widely used for treating various diseases.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: September 10, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: KwangMeyung Kim, Ick Chan Kwon, Kui Won Choi, Seung Young Lee, In Chan Youn, Myung Sook Huh, So Jin Lee
  • Publication number: 20130230562
    Abstract: The present invention relates to a fusion protein comprising small heat shock protein, a cage protein formed thereby, and novel use thereof, more particularly, a fusion protein comprising a small heat shock protein, a recognition site of a protease, and a histidine polymer, wherein the recognition site and the histidine polymer are sequentially linked to a carboxyl terminal of the small heat shock protein, a cage protein formed thereby, and novel use thereof. The fusion protein of the present invention, and a cage protein formed by the self-assembly properties of the fusion protein are not cytotoxic, and emits a fluorescence signal of about 20 to about 50 times higher comparing to a single peptide for the conventional molecular imaging, per unit protein. Additionally, cell permeability is very excellent, thereby to be effectively used as a biosensor or a bioactive material carrier.
    Type: Application
    Filed: June 7, 2011
    Publication date: September 5, 2013
    Inventors: Hyung-Jun Ahn, Ick-Chan Kwon, Kul-Won Choi
  • Patent number: 8513402
    Abstract: Disclosed are a human serum albumin-siRNA carrier system having siRNA bound to human serum albumin and a user thereof, and especially, human serum albumin-siRNA carrier system, which has a biodegradable covalent bond between human serum albumin polymer and siRNA and is stable in a living body, and a user thereof. The human serum albumin-siRNA carrier system having the biodegradable covalent bond between the human serum albumin and the siRNA exhibits high siRNA delivery efficiency to a target site in the living body. Therefore, the human serum albumin-siRNA carrier system may allow siRNA for therapy to be efficiently delivered to a target site such as cancer tissues in the living body even by being administrated in a relatively low concentration, which may result in a wide use for therapies of various diseases.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: August 20, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: Kwangmeyung Kim, Ick Chan Kwon, Kuiwon Choi, In Chan Youn, MyungSook Huh, Sojin Lee
  • Patent number: 8498540
    Abstract: A system for acquiring data of a multi-channel signal includes a channel-voltage transmission module disposed in a shield room blocking electromagnetic waves, connected with a plurality of channels from which analog signals are output, and configured to generate a serial digital signal having information about an analog signal and information about a channel from which the analog signal is output, and an optical fiber cable through which the serial digital signal is transmitted from the channel-voltage transmission module to the outside of the shield room.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 30, 2013
    Assignee: Korean Research Institute of Standards and Science
    Inventors: Jin Mok Kim, Yong Ho Lee, Hyuk Chan Kwon, Ki Woong Kim
  • Patent number: 8487106
    Abstract: The present invention relates to a process for preparing 2-methyl-2?-phenylpropionic acid derivatives showing antihistamine activity in more simplified way, intermediate compounds and their preparation processes used therefore. According to the present invention, pharmaceutically useful 2-methyl-2?-phenylpropionic acid derivatives can be prepared with high yield and purity on industrial scale.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: July 16, 2013
    Assignee: Yuhan Corporation
    Inventors: Chun-Ho Lee, Ja-Heouk Khoo, Kyoung-Chan Kwon, Hyun Ju
  • Publication number: 20130150287
    Abstract: The present invention relates to a recombinant protein for siRNA delivery, which allows the efficient intracellular and in vivo delivery of siRNA. More particularly, the present invention relates to a recombinant protein that allows a siRNA binding protein to be located in the interior cavity of a capsid protein of HBV (Hepatitis B virus), in which siRNAs of interest bind to the siRNA binding protein to be encapsulated within the capsid shell, thereby providing stability against the external attack such as nucleases and achieving the efficient intracellular and in vivo delivery of siRNA by its release into the cytosolic space after cell uptake.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 13, 2013
    Applicant: Korea Institute of Science and Technology
    Inventors: Hyung-Jun AHN, Ick-Chan Kwon, Kui-Won Choi