Patents by Inventor Bong Chul Chung

Bong Chul Chung 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: 20210308648
    Abstract: A large capacity natural material composition conversion apparatus using a microwave with a preset pressure function includes a chamber including a sealed reaction space accommodating a material, an radiator configured to heat the material by radiating a microwave into the reaction space, a pressure regulator configured to regulate a pressure of the reaction space by supplying a gas into the reaction space, and a controller configured to control the pressure regulator and the radiator, and preliminarily increase a pressure of the reaction space by controlling the pressure regulator before heating the material.
    Type: Application
    Filed: April 2, 2021
    Publication date: October 7, 2021
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jungyeob HAM, Taejung KIM, Bong Chul CHUNG, Sungdo HA, Seok LEE, Young Tae PARK, Pilju CHOI
  • Publication number: 20210196608
    Abstract: Provided are: a method of preparing a Cannabis processed product having an increased CBN content in an efficient and economic manner, through cyclization of CBD and aromatization of THC by continuous microwave irradiation of a Cannabis extract; and use of a processed product having an increased CBN content prepared by the method, a fraction thereof, and a single ingredient of CBN, in foods, drugs, and cosmetics.
    Type: Application
    Filed: December 30, 2020
    Publication date: July 1, 2021
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jungyeob HAM, Taejung KIM, Bong Chul CHUNG, Sungdo HA, Seok LEE, Jin-Chul KIM, Pilju CHOI, Bong Geun SONG
  • Publication number: 20210100864
    Abstract: Provided are: a method of preparing a cannabis processed product having an increased CBD content in an efficient and economic manner, through a decarboxylation reaction by continuous microwave irradiation of a cannabis extract; and use of a processed product having an increased CBD content prepared by the method, a fraction thereof, and a single ingredient of CBD, in foods, drugs, and cosmetics.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 8, 2021
    Inventors: Jungyeob HAM, Taejung KIM, Bong Chul CHUNG, Seok LEE, Bong Geun SONG, Sungdo HA, Young Tae PARK, Pilju CHOI, Hoon RYU
  • Publication number: 20210002247
    Abstract: Provided are a method of preparing a cannabis processed product having an increased ?9-THC content in an efficient and economic manner, through a cyclization reaction by microwave irradiation of cannabis using various extraction solvents, and use of the processed product having an increased ?9-THC content prepared by the method, a fraction thereof, and a single ingredient of THC, in foods, drugs, and cosmetics.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jungyeob HAM, Taejung KIM, Bong Chul CHUNG, Sungdo HA, Seok LEE, Deok Ha WOO, Pilju CHOI, Bong Geun SONG
  • Publication number: 20200383893
    Abstract: Provided are a method of preparing a cannabis processed product having an increased CBD content in an efficient and economic manner, through decarboxylic acid reaction by microwave irradiation of cannabis using various extraction solvents, and use of the processed product having an increased CBD content prepared by the method, a fraction thereof, and a single ingredient of CBD, in foods, drugs, and cosmetics.
    Type: Application
    Filed: June 4, 2020
    Publication date: December 10, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jungyeob HAM, Taejung KIM, Sungdo HA, Bong Chul CHUNG, Seok LEE, Pilju CHOI, Bong Geun SONG, Deok Ha WOO
  • Patent number: 10653732
    Abstract: Provided are a composition for stimulating insulin secretion from cells, the composition including a Hypoxylon truncatum extract or an active ingredient thereof, and a method of stimulating insulin secretion from cells.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: May 19, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jungyeob Ham, Bong Chul Chung, Taejung Kim, Pilju Choi, Ki Sung Kang, Buyng Su Hwang, Kyu Sun Kim
  • Publication number: 20180280456
    Abstract: Provided are a composition for stimulating insulin secretion from cells, the composition including a Hypoxylon truncatum extract or an active ingredient thereof, and a method of stimulating insulin secretion from cells.
    Type: Application
    Filed: March 26, 2018
    Publication date: October 4, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jungyeob HAM, Bong Chul CHUNG, Taejung KIM, Pilju CHOI, Ki Sung KANG, Buyng Su HWANG, Kyu Sun KIM
  • Patent number: 9650355
    Abstract: The present disclosure relates to a novel method for preparing an arylnaphthalene lignan compound. In synthesis of arylnaphthalene lignan compounds and derivatives according to the present disclosure, a naphthalene backbone may be constructed first and an aryl group may be introduced at the final stage. Through this, various kinds of derivatives that could not be prepared from the existing methods can be synthesized effectively. Further, the synthesis method according to the present disclosure is appropriate for large-scale production.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: May 16, 2017
    Assignee: Korea Institute of Science and Technology
    Inventors: Jungyeob Ham, Tae Jung Kim, Hak Cheol Kwon, Kyu Hyuk Jeong, Jungho Song, Bong Chul Chung
  • Publication number: 20150336938
    Abstract: The present disclosure relates to a novel method for preparing an arylnaphthalene lignan compound. In synthesis of arylnaphthalene lignan compounds and derivatives according to the present disclosure, a naphthalene backbone may be constructed first and an aryl group may be introduced at the final stage. Through this, various kinds of derivatives that could not be prepared from the existing methods can be synthesized effectively. Further, the synthesis method according to the present disclosure is appropriate for large-scale production.
    Type: Application
    Filed: January 28, 2014
    Publication date: November 26, 2015
    Applicant: Korea Institute of Science and Technology
    Inventors: Jungyeob HAM, Tae Jung KIM, Hak Cheol KWON, Kyu Hyuk JEONG, Jungho SONG, Bong Chul CHUNG
  • Patent number: 8859954
    Abstract: Disclosed herein is a method for discriminating sitosterolemia by simultaneously measuring relative concentrations of phytosterol and cholesterol metabolism-related compounds in a blood spot on the paper. According to the present disclosure, sitosterolemia may be quickly discriminated with high accuracy by simple sample collecting using a trace amount of blood spot stained on a paper, and it may be used for newborn screening and preschool children, particularly patients with xanthoma.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: October 14, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Man Ho Choi, Bong Chul Chung, Hyun Hwa Son, Eun Gyong Yoo
  • Publication number: 20110207230
    Abstract: Disclosed is a method for detection of 24S-hydroxycholesterol in hair. More specifically, a trace amount of hair is hydrolyzed under basic condition and metabolites including 24S-hydroxycholesterol are purified and extracted by solid-phase extraction (SPE). Then, after derivatization of the resulting extract with trimethylsilyl (TMS), 24S-hydroxycholesterol is detected by gas chromatography-mass spectrometry (GC-MS).
    Type: Application
    Filed: February 25, 2010
    Publication date: August 25, 2011
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Bong Chul CHUNG, Man Ho Choi, Kyung Mi Kim
  • Patent number: 7951890
    Abstract: Provided is a method for selective extraction of steroid compounds using entrapped ?-cyclodextrin polymers. Particularly, steroid hormones can be effectively selected from a biological sample by selectively extracting steroid compounds using entrapped ?-cyclodextrin polymers, prepared by adding epichlorohydrin to ?-cyclodextrin to prepare a polymer in a gel state, entrapping the polymer and pulverizing the products without using an additional device required in conventional solid-phase extraction.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: May 31, 2011
    Assignee: Korea Institute of Science and Technology
    Inventors: Man Ho Choi, Dong Hyun Kim, Bong Chul Chung, Ju-Yeon Moon
  • Publication number: 20110071094
    Abstract: The present disclosure relates allose inducing programmed cell death in hormone refractory prostate cancer cell lines. More particularly, the present disclosure relates to a D-allose inducing programmed cell death in hormone refractory prostate cancer cell line of DU145 in dose-dependent manner by repressing cell growth and inhibiting cell cycle as well as by reducing expression of caspase-3 and poly (ADP-ribose) polymerase (PARP).
    Type: Application
    Filed: October 25, 2010
    Publication date: March 24, 2011
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUDATION, GYEONGSANG NATIONAL UNIVERSITY
    Inventors: MYEONG OK KIM, BONG CHUL CHUNG
  • Patent number: 7745558
    Abstract: Provided are entrapped ?-cyclodextrin polymers and a method of preparing the same. Particularly, entrapped ?-cyclodextrin polymers are prepared by adding epichlorohydrin to ?-cyclodextrin to prepare a polymer in a gel state, entrapping the polymer by entrapment of metal ions on the surface of the polymer and pulverizing the entrapped polymer to prepare powders. According to the entrapped ?-cyclodextrin polymers, steroid hormones contained in a biological sample can be simply extracted without using an additional device required in conventional solid-phase extraction.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: June 29, 2010
    Assignee: Korea Institute of Science and Technology
    Inventors: Man Ho Choi, Dong Hyun Kim, Bong Chul Chung, Ju-Yeon Moon
  • Patent number: 7678579
    Abstract: Disclosed is a method of extracting all metabolites existing in a biological sample to detect a comprehensive difference between metabolites of a control group and a test group, thereby verifying significance thereof. More particularly, the invention comprises a first step of analyzing a fraction extracted with a solid phase extraction method, a fraction obtained by extracting the remnant fraction with a liquid-liquid extraction method and fractions extracted with the liquid-liquid extraction method at two pH different from each other after the hydrolysis, with a gas chromatography-mass spectrometry; a second step of converting the chromatogram result into numerical values capable of being statistically processed; and a third step of analyzing the numerical values with a principal component analysis (PCA) and a discriminant analysis (DA) to detect a difference between the control group and the test group.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: March 16, 2010
    Assignee: Korea Institute of Science and Technology
    Inventors: Byung Hwa Jung, Bong Chul Chung
  • Publication number: 20080207931
    Abstract: Provided is a method for selective extraction of steroid compounds using entrapped ?-cyclodextrin polymers. Particularly, steroid hormones can be effectively selected from a biological sample by selectively extracting steroid compounds using entrapped ?-cyclodextrin polymers, prepared by adding epichlorohydrin to ?-cyclodextrin to prepare a polymer in a gel state, entrapping the polymer and pulverizing the products without using an additional device required in conventional solid-phase extraction.
    Type: Application
    Filed: November 29, 2007
    Publication date: August 28, 2008
    Inventors: Man Ho Choi, Dong Hyun Kim, Bong Chul Chung, Ju-Yeon Moon
  • Publication number: 20080194784
    Abstract: Provided are entrapped ?-cyclodextrin polymers and a method of preparing the same. Particularly, entrapped ?-cyclodextrin polymers are prepared by adding epichlorohydrin to ?-cyclodextrin to prepare a polymer in a gel state, entrapping the polymer by entrapment of metal ions on the surface of the polymer and pulverizing the entrapped polymer to prepare powders. According to the entrapped ?-cyclodextrin polymers, steroid hormones contained in a biological sample can be simply extracted without using an additional device required in conventional solid-phase extraction.
    Type: Application
    Filed: November 29, 2007
    Publication date: August 14, 2008
    Inventors: Man Ho Choi, Dong Hyun Kim, Bong Chul Chung, Ju-Yeon Moon
  • Publication number: 20080076181
    Abstract: Disclosed is a method of extracting all metabolites existing in a biological sample to detect a comprehensive difference between metabolites of a control group and a test group, thereby verifying significance thereof. More particularly, the invention comprises a first step of analyzing a fraction extracted with a solid phase extraction method, a fraction obtained by extracting the remnant fraction with a liquid-liquid extraction method and fractions extracted with the liquid-liquid extraction method at two pH different from each other after the hydrolysis, with a gas chromatography-mass spectrometry; a second step of converting the chromatogram result into numerical values capable of being statistically processed; and a third step of analyzing the numerical values with a principal component analysis (PCA) and a discriminant analysis (DA) to detect a difference between the control group and the test group.
    Type: Application
    Filed: April 5, 2007
    Publication date: March 27, 2008
    Inventors: Byung Hwa Jung, Bong Chul Chung