Patents by Inventor Chun RYU

Chun RYU 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).

  • Publication number: 20130281311
    Abstract: The present invention relates to a biomarker for the identification of specific exposure to propionaldehyde which is one of volatile organic compounds exposed in the environment, and a method for the identification of specific exposure to propionaldehyde using the same, precisely a biomarker which is up-regulated or down-regulated specifically by propionaldehyde and a method for the identification of specific exposure to propionaldehyde using the biomarker. The biomarker of the present invention is the reacted genes selected by using DNA microarray chip, which can be effectively used for the monitoring and evaluation of propionaldehyde contamination in the environment samples and at the same time as a tool for the investigation of the toxic mechanism induced specifically by propionaldehyde.
    Type: Application
    Filed: November 29, 2012
    Publication date: October 24, 2013
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae Chun Ryu, Mee Song, Ji-seong Yoon, Hyo Sun Lee, Wooin Ryu, Chan Young Shin
  • Patent number: 8520937
    Abstract: A method of automatically creating a natural image which may reduce the torment of creation which is a burden to a designer when creating a new image.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: August 27, 2013
    Assignee: SNU R&DB Foundation
    Inventors: Jae Chun Ryu, Hyoung Kee Kim, Yoon Young Kim
  • Patent number: 8445207
    Abstract: The present invention relates to a screening method using the genes related to teratogenicity, more precisely the genes up- or down-regulated by a drug inducing teratogenicity such as thalidomide, valproic acid, and methotrexate and a method for screening of thalidomide, valproic acid and methotrexate using the genes. The genes of the present invention is based on reactive genes selected by DNA microarray chip, so that it is very effective in risk assessment and monitoring drugs or chemicals having high risk of teratogenicity and at the same time it can be used as a tool to examine mechanism of teratogenicity.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: May 21, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: Jae-Chun Ryu, Youn-Jung Kim
  • Publication number: 20120183209
    Abstract: A method of automatically creating a natural image which may reduce the torment of creation which is a burden to a designer when creating a new image.
    Type: Application
    Filed: January 11, 2012
    Publication date: July 19, 2012
    Applicant: SNU R&DB FOUNDATION
    Inventors: Jae Chun RYU, Hyoung Kee KIM, Yoon Young KIM
  • Patent number: 8124762
    Abstract: The present invention relates to diphenyl amine derivatives having luminescent properties, and particularly to diphenyl amines substituted with various electron-donating or electron-withdrawing groups. The compounds of the present invention show blue or blue-green luminescence, and luminescence of the compounds herein can be achieved by UV or visible light, thus being useful as a fluorescent dye or fluorescent material for an organic electroluminescence device or display.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: February 28, 2012
    Assignee: Korea Institute of Science & Technology
    Inventors: So Ha Lee, Jae Chun Ryu, Kyung Ho Yoo, Ibrahim Mustafa El-Deeb
  • Patent number: 8080377
    Abstract: The present invention relates to a method for confirming the exposure on chrysene using a DNA fragment whose expression is increased or decreased specifically when it is exposed to chrysene. The method of the present invention is effective in determination of risk by chrysene and monitoring the chrysene exposure, so that it can be effectively used as a tool for examining the mechanism of chrysene induced toxicity.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: December 20, 2011
    Assignee: Korea Institute of Science and Technology
    Inventors: Jae-Chun Ryu, Youn-Jung Kim, Mi-Kyung Song, Hee-Kyung Jeon
  • Publication number: 20110190155
    Abstract: The present invention relates to a marker gene for screening of drug candidates inducing pulmonary toxicity and a screening method using the same, more precisely a marker gene up- or down regulated by amiodarone which is a drug inducing pulmonary toxicity and a method for screening drug candidates inducing pulmonary toxicity using the same. The marker gene of the present invention can be effectively used for monitoring and identifying drugs or chemical having high risk of inducing pulmonary toxicity and can be used as an effective tool for examining the mechanism of amiodarone which causes pulmonary toxicity and side effects.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 4, 2011
    Applicant: Korea Institute of Science and Technology
    Inventors: Jae Chun Ryu, Youn Jung Kim, Mee Song
  • Publication number: 20110118127
    Abstract: The present invention relates to a marker gene for screening a drug inducing toxicity in human and a screening method using the same. More precisely, the invention relates to a microarray on which marker genes up-or down-regulated specifically by 16 drugs inducing pulmonary toxicity, teratogenicity, nephrotoxicity, cardiotoxicity or mutation (Methotrexate, Nitrofurantoin, Amiodarone, Carbamazepine, Valproic acid, Thalidomide, Cisplatin, Gentamycin, Amphotericine, Furylfuramide, N-nitroso-N-methylurea, methylmethanesulfonate, 4-nitroquinoline-N-oxide, 2-nitrofluorene, Doxorubicin and Daunorubicin) are integrated, a kit comprising the said microarray, and a screening method of a drug inducing toxicity in human using the same.
    Type: Application
    Filed: March 9, 2010
    Publication date: May 19, 2011
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae-Chun RYU, Youn Jung KIM, Mee SONG, Mi-Kyung SONG, Han Seam CHOI, Ji Hee KIM, Jina LEE
  • Patent number: 7840702
    Abstract: Disclosed herein is a network hard disk copy system for managing multiple clients. The system includes a main PC and sub PCs. The main PC generates a check parity signal, transmits it to sub PCs, receives response messages from the sub PCs, checks arrival times of the response messages, determines sub PCs which sent the response messages within a reference time to be those of a first group, copies data to the sub PCs of the first group, divides sub PCs which could not send the response messages within the reference time into groups, classifies sub PCs having faster response message arrival times as sub PCs of a higher group, generates and transmits global group information to sub PCs, and transmits group information output signals. The sub PCs extract their own group information from the global group information, and generate and output background images including the group information.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: November 23, 2010
    Assignee: XIICNC Inc.
    Inventors: Seoung Il Choi, Jong Beom Moon, Jae Chun Ryu
  • Publication number: 20100256000
    Abstract: The present invention relates to a screening method using the genes related to teratogenicity, more precisely the genes up- or down-regulated by a drug inducing teratogenicity such as thalidomide, valproic acid, and methotrexate and a method for screening of thalidomide, valproic acid and methotrexate using the genes. The genes of the present invention is based on reactive genes selected by DNA microarray chip, so that it is very effective in risk assessment and monitoring drugs or chemicals having high risk of teratogenicity and at the same time it can be used as a tool to examine mechanism of teratogenicity.
    Type: Application
    Filed: April 7, 2009
    Publication date: October 7, 2010
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae-Chun RYU, Youn-Jung Kim, Da young Youk
  • Publication number: 20100063281
    Abstract: The present invention relates to diphenyl amine derivatives having luminescent properties, and particularly to diphenyl amines substituted with various electron-donating or electron-withdrawing groups. The compounds of the present invention show blue or blue-green luminescence, and luminescence of the compounds herein can be achieved by UV or visible light, thus being useful as a fluorescent dye or fluorescent material for an organic electroluminescence device or display.
    Type: Application
    Filed: December 5, 2008
    Publication date: March 11, 2010
    Inventors: So Ha Lee, Jae Chun Ryu, Kyung Ho Yoo, Ibrahim Mustafa El-Deeb
  • Publication number: 20090291855
    Abstract: The present invention relates to a method for confirming the exposure on chrysene using a DNA fragment whose expression is increased or decreased specifically when it is exposed to chrysene. The method of the present invention is effective in determination of risk by chrysene and monitoring the chrysene exposure, so that it can be effectively used as a tool for examining the mechanism of chrysene induced toxicity.
    Type: Application
    Filed: October 16, 2008
    Publication date: November 26, 2009
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: JAE-CHUN RYU, YOUN-JUNG KIM, MI-KYUNG SONG, HEE-KYUNG JEON
  • Publication number: 20090269747
    Abstract: The present invention relates to a marker gene for screening of drug candidates inducing pulmonary toxicity and a screening method using the same, more precisely a marker gene up- or down regulated by amiodarone which is a drug inducing pulmonary toxicity and a method for screening drug candidates inducing pulmonary toxicity using the same. The marker gene of the present invention can be effectively used for monitoring and identifying drugs or chemical having high risk of inducing pulmonary toxicity and can be used as an effective tool for examining the mechanism of amiodarone which causes pulmonary toxicity and side effects.
    Type: Application
    Filed: May 15, 2008
    Publication date: October 29, 2009
    Applicant: Korea Institute of Science and Technology
    Inventors: Jae Chun Ryu, Youn Jung Kim, Mee Song
  • Patent number: 6748301
    Abstract: In a voice recognition automobile vehicle capable of recognizing a human voice, an apparatus and method for prevention of driving of motor vehicle under the influence of alcohol (DUI) and prevention of vehicle theft, are provided in which a voice and a voice secret code of at least one authorized driver is stored through the voice recognition apparatus by learning and then only an authorized driver who is not determined to be legally drunk and possesses the same voice and voice secret code as the stored voice and voice secret code can be allowed to start to drive the vehicle. Only an authorized driver having the same voice and voice secret code and not determined to be legally drunk can start the engine of the vehicle.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: June 8, 2004
    Inventor: Jae-Chun Ryu
  • Patent number: 6562837
    Abstract: Disclosed are pharmaceutical compositions for the treatment and prophylaxis of heart failure, thrombosis, iNOS-induced tissue injury, septicemia, and disseminated intravascular coagulation. The compositions comprise, as a pharmacologically active ingredient, the compounds represented by the following chemical formulas 1 and 2, each of them showing heart stimulating activity, hypotensive activity, inhibitory activity against platelet aggregation, and suppressive activity against iNOS expression in combination and at once.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: May 13, 2003
    Assignees: Korea Institute of Science & Technology
    Inventors: Hye Sook Yun-Choi, Ki-Churl Chang, Duck-Hyung Lee, Jae-Chun Ryu
  • Patent number: 5442452
    Abstract: A sound mode switching method for multichannel selection a video tape recorder uses a first step of making judgements on the selections of a multi-voice mode setting key and a main picture switching key, a second step for deciding the sound mode and for storing the sound mode data into a memory, a third step for making a judgement on the selection of a channel for the main picture and for outputting the selected multi-voice mode signals, and a fourth step for replacing the sub-picture. A device for multichannel selection comprises a microcomputer, a multi-voice mode selecting circuit, and a multi-voice module. According to the present invention, during a multichannel selection, independent sound signals can be outputted for the respective channels under a multi-voice mode and therefore, different sound signals can be displayed and enjoyed in a unique manner depending on the contents of the pictures for the respective channels.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: August 15, 1995
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Jae-chun Ryu