Patents by Inventor Kyung-Yeol Kim

Kyung-Yeol Kim 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: 20210043101
    Abstract: The present disclosure relates to a method and device for providing questions for learning. According to the present disclosure, a method by which a server provides questions for question includes step a of displaying learning content on a first region of a screen displayed on a terminal of a learner; step b of fixedly displaying an AI object on a second region of the screen; step c of determining whether a learning progress of the learner satisfies a predetermined object activation condition; and step d of displaying an AI message corresponding to the object activation condition on a third region of the screen adjacent to the AI object while the AI object is activated, when the learning progress satisfies the object activation condition. According to the present disclosure, a user interface may be adaptively changed according to a question solving situation of a learner, thereby inducing continuous learning of a user.
    Type: Application
    Filed: June 14, 2018
    Publication date: February 11, 2021
    Inventors: Kyung Hoon KIM, Min Sung NOH, Jae We HEO, Kyung Yeol KIM, Jin Seo YOON, Young Sun KIM
  • Publication number: 20180134651
    Abstract: Disclosed is a method of purifying terephthalate-based ester compounds, including: adding a base to a resultant reaction mixture comprising terephthalate-based ester compounds synthesized by esterification of terephthalic acid and alcohol so as to neutralize unreacted acids; applying steam to the resultant reaction mixture which has been neutralized; adding a filter aid to the resultant reaction mixture which has been steamed prior to filtration through a filter; and filtering through a filter the resultant reaction mixture to which the filter aid has been added, wherein the filter aid comprises diatomite particles having an average particle size of 50 ?m to 90 ?m.
    Type: Application
    Filed: September 28, 2017
    Publication date: May 17, 2018
    Inventors: Seong Hwan LEE, Sang Hoon KIM, Kyung Yeol KIM, Yong Il KIM
  • Publication number: 20180134652
    Abstract: Disclosed is a method for purifying an ester compound, including: adding a base to a resultant reaction mixture comprising a plasticizer of an ester compound synthesized by an esterification reaction of an acid and an alcohol so as to neutralize unreacted acids; applying steam to the resultant reaction mixture which has been neutralized; adding diatomite to the resultant reaction mixture which has been steamed, prior to filtration through a filter, and then subjecting the resultant reaction mixture to which the diatomite has been added to a primary filtration; and adding an activated white clay to the resultant reaction mixture, and then subjecting the resultant reaction mixture which has been primarily filtrated to a secondary filtration through a filter.
    Type: Application
    Filed: September 29, 2017
    Publication date: May 17, 2018
    Inventors: Seong Hwan LEE, Sang Hoon KIM, Kyung Yeol KIM, Yong Il KIM
  • Patent number: 9278864
    Abstract: Provided is a method for preparing monosilane, more particularly a method for economically preparing monosilane, which is useful for the composition of a thin semiconductor structure and multipurpose high-purity polycrystalline silicon, by preparing monosilane with high purity and high yield using trialkoxysilane.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: March 8, 2016
    Assignees: OCI COMPANY LTD., INSTITUTE OF ION-PLASMA AND LASER TECHNOLOGIES
    Inventors: Taek Joong Kim, Yong Il Kim, Kyung Yeol Kim, Deok Yun Kim, Ashurov Khatam, Salikhov Shavkat, Rotshteyn Vladimir, Ashurova Khekayat, Kurbanov Aziz, Abdisaidov Ilyos, Azizov Sultan, Ashurov Rustam
  • Patent number: 9156861
    Abstract: The present invention relates to a method for preparing SiH(OR3)-type trialkoxysilane (wherein, R is a C1-C3 methyl, ethyl, propyl or isopropyl group), and more specifically, the method comprises the steps of: preventing the oxidation of a silicon surface by pulverizing raw silicon material in a solvent environment without contact with the air so that the initial induction period of the direct synthesis of trialkoxysilane is dramatically reduced; and removing impurities from a reaction environment by continuously selecting a part of the solvent through a membrane filter provided in a reactor body.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: October 13, 2015
    Assignees: OCI COMPANY LTD., INSTITUTION OF ION-PLASMA AND LASER TECHNOLOGIES
    Inventors: Se In Yang, Yong Il Kim, Kyung Yeol Kim, Deok Yun Kim, Ashurov Khatam, Abdurakhmanov Boris, Rotshteyn Vladimir, Salikhov Shavkat, Ashurova Khekayat, Salimboev Akmal, Azizov Sultan, Saidov Sabir
  • Publication number: 20150251916
    Abstract: Provided is a method for preparing monosilane, more particularly a method for economically preparing monosilane, which is useful for the composition of a thin semiconductor structure and multipurpose high-purity polycrystalline silicon, by preparing monosilane with high purity and high yield using trialkoxysilane.
    Type: Application
    Filed: October 2, 2013
    Publication date: September 10, 2015
    Inventors: Taek Joong Kim, Yong Il Kim, Kyung Yeol Kim, Deok Yun Kim, Ashurov Khatam, Salikhov Shavkat, Rotshteyn Vladimir, Ashurova Khekayat, Kurbanov Aziz, Abdisaidov Ilyos, Azizov Sultan, Ashurov Rustam
  • Publication number: 20140364639
    Abstract: The present invention relates to a method for preparing SiH(OR3)-type trialkoxysilane (wherein, R is a C1-C3 methyl, ethyl, propyl or isopropyl group), and more specifically, the method comprises the steps of: preventing the oxidation of a silicon surface by pulverizing raw silicon material in a solvent environment without contact with the air so that the initial induction period of the direct synthesis of trialkoxysilane is dramatically reduced; and removing impurities from a reaction environment by continuously selecting a part of the solvent through a membrane filter provided in a reactor body.
    Type: Application
    Filed: March 30, 2012
    Publication date: December 11, 2014
    Applicant: INSTITUTE OF ION-PLASMA AND LASER TECHNOLOGIES
    Inventors: Se In Yang, Yong Kim, II, Kyung Yeol Kim, Deok Yun Kim, Ashurov Khatam, Abdurakhmanov Boris, Rotshteyn Vladimir, Salikhov Shavkat, Ashurova Khekayat, Salimboev Akmal, Azizov Sultan, Saidov Sabir
  • Patent number: 5534976
    Abstract: A system for automatically eliminating a paper jam in an electrophotographic device may be initiated by removing and re-inserting a paper cassette subsequent to the occurrence of the paper jam. If the paper cassette is removed and inserted, a paper jam eliminating mode is implemented to eliminate the paper jam.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: July 9, 1996
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Kyung-Yeol Kim