Patents by Inventor Hyung Ki Yoon

Hyung Ki Yoon 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: 10550230
    Abstract: A preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby are provided. The preparation method of the superabsorbent polymer according to the present disclosure prevents polymer particles from being broken or the surface thereof from being damaged during preparation and handling of the superabsorbent polymer, thereby providing a superabsorbent polymer having excellent absorption properties and permeability.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 4, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yong Hun Lee, Hyung Ki Yoon, Chang Sun Han, Jung Min Sohn
  • Publication number: 20200010624
    Abstract: A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.
    Type: Application
    Filed: December 28, 2016
    Publication date: January 9, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Dae Woo Nam, Jun Kyu Kim, Hyung Ki Yoon, Tae Hwan Jang, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Seong Beom Heo, Seon Jung Jung, Ji Yoon Jeong
  • Patent number: 10512691
    Abstract: The present invention relates to nanoparticles. In particular, the present invention provides nanoparticles for clinical (e.g., targeted therapeutic), diagnostic (e.g., imaging), and research applications in the field of cardiology. For example, in some embodiments, the present invention provides a method of treating (e.g., ablating) cardiac tissue, comprising: a) contacting an animal with a nanoparticle comprising a matrix, a toxic (e.g., ablative) agent (e.g., sonosensitizer, chemotherapeutic agent (e.g., doxorubicin or cisplatin), or photosensitizer), and a cardiac targeting moiety; and b) administering an activator of the toxic agent (e.g., light, chemical (e.g., pharmaceutical agent) or ultrasound) to at least a portion of the cardiac tissue (e.g., heart) of the animal to activate the toxic agent.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: December 24, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Jerome Kalifa, Raoul Kopelman, Uma Mahesh R. Avula, Gwangseong Kim, Yong-Eun Koo Lee, Hyung Ki Yoon
  • Publication number: 20190308170
    Abstract: A super absorbent polymer according to the present invention has fast absorption rate while having high permeability and suction power, and thus is preferably used for hygienic materials such as diapers and can exhibit excellent performance.
    Type: Application
    Filed: December 28, 2016
    Publication date: October 10, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Seong Beom Heo, Yeon Woo Hong, Hyung Ki Yoon, Bo Hyun Seong, Su Jin Kim, Tae Hwan Jang, Jun Kyu Kim
  • Publication number: 20190248963
    Abstract: Provided are a superabsorbent polymer and a preparation method thereof. According to the present invention, a superabsorbent polymer having high centrifuge retention capacity and absorption rate may be prepared by using a specific foam stabilizer.
    Type: Application
    Filed: November 22, 2017
    Publication date: August 15, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Hyung Ki Yoon, Yeon Woo Hong, Seong Beom Heo, Dae Woo Nam, Tae Hwan Jang, Jun Kyu Kim, Bo Hyun Seong, Su Jin Kim, Seon Jung Jung, Ji Yoon Jeong
  • Publication number: 20190217272
    Abstract: A superabsorbent polymer having high centrifuge retention capacity and absorption rate prepared by using a particular foam stabilizer and a polymerization initiator. The foam stabilizer includes a sucrose ester and a polyalkylene oxide, and polymerization initiator includes a photoinitiator and a cationic azo-based initiator.
    Type: Application
    Filed: February 2, 2018
    Publication date: July 18, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Yeon Woo HONG, Seong Beom HEO, Hyung Ki YOON, Dae Woo NAM, Tae Hwan JANG, Jun Kyu KIM, Bo Hyun SEONG, Su Jin KIM, Seon Jung JUNG, Ji Yoon JEONG
  • Publication number: 20190134603
    Abstract: A superabsorbent polymer according to the present invention has excellent initial absorption properties, and thus it may be used in sanitary materials such as diapers, etc., thereby exhibiting excellent performances.
    Type: Application
    Filed: January 5, 2017
    Publication date: May 9, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Jun Kyu KIM, Hyung Ki YOON, Dae Woo NAM, Bo Hyun SEONG, Yeon Woo HONG, Seong Beom HEO, Seon Jung JUNG, Ji Yoon JEONG, Tae Hwan JANG, Su Jin KIM
  • Publication number: 20190100629
    Abstract: A super absorbent polymer according to the present invention has an excellent discoloration resistance characteristic even under high temperature/high humidity conditions, while maintaining excellent absorption performance, and is preferably used for hygienic materials such as diapers, and thus can exhibit excellent performance.
    Type: Application
    Filed: December 28, 2016
    Publication date: April 4, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Dae Woo Nam, Seon Jung Jung, Tae Hwan Jang, Jun Kyu Kim, Seong Beom Heo, Bo Hyun Seong, Yeon Woo Hong, Su Jin Kim, Ji Yoon Jeong, Hyung Ki Yoon
  • Publication number: 20180318793
    Abstract: The present invention relates to a method for preparing a super absorbent polymer exhibiting improved liquid permeability, gel strength, absorption rate and the like while maintaining excellent absorption performance. The method for preparing the super absorbent polymer comprises the steps of: carrying out a crosslinking polymerization of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups in the presence of an internal crosslinking agent to form a hydrogel polymer including a cross-linked polymer; drying, pulverizing, and classifying the hydrogel polymer to form a base polymer powder; and surface-crosslinking the base polymer powder by using a surface crosslinking liquid containing a surface crosslinking agent of an alkylene carbonate having 2 to 5 carbon atoms, in the presence of hydrophobic silica particles having a water-contact angle of more than 10° and 150° or less and hydrophilic silica particles having a water-contact angle of 10° or less.
    Type: Application
    Filed: January 3, 2017
    Publication date: November 8, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Hyung Ki Yoon, Dae Woo Nam, Hyemin Lee, Chang Sun Han, Sung Jong Seo
  • Publication number: 20180312645
    Abstract: The present invention relates to a super absorbent polymer exhibiting more improved liquid permeability while maintaining excellent absorption performance, and a method for producing the same. The super absorbent polymer comprises: a base polymer powder comprising a first cross-linked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface crosslinked layer formed on the base polymer powder and including a second cross-linked polymer in which the first crosslinked polymer is further cross-linked through an alkylene carbonate having two to five carbon atoms. The super absorbent polymer satisfies predetermined physical properties.
    Type: Application
    Filed: January 3, 2017
    Publication date: November 1, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Hyemin Lee, Sung Jong Seo, Hyung Ki Yoon
  • Publication number: 20180312680
    Abstract: The present invention relates to a super absorbent polymer which maintains excellent absorption performance and retains physical properties even after being physically damaged by an external force.
    Type: Application
    Filed: January 3, 2017
    Publication date: November 1, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Sung Jong Seo, Chang Sun Han, Hyemin Lee, Hyung Ki Yoon
  • Publication number: 20180304232
    Abstract: The present invention relates to a super absorbent polymer exhibiting more improved liquid permeability and/or absorption rate while maintaining excellent absorption performance. Such super absorbent polymer comprises a base polymer powder including a first cross-linked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface cross-linked layer formed on the base polymer powder and including a second cross-linked polymer in which the first cross-linked polymer is further cross-linked through an alkylene carbonate having 2 to 5 carbon atoms, and satisfies predetermined physical properties.
    Type: Application
    Filed: January 10, 2017
    Publication date: October 25, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Dae Woo Nam, Chang Sun Han, Hyemin Lee, Hwayoon Jung, Hyung Ki Yoon
  • Publication number: 20180237594
    Abstract: A preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby are provided. The preparation method of the superabsorbent polymer according to the present disclosure prevents polymer particles from being broken or the surface thereof from being damaged during preparation and handling of the superabsorbent polymer, thereby providing a superabsorbent polymer having excellent absorption properties and permeability.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 23, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Yong Hun Lee, Hyung Ki Yoon, Chang Sun Han, Jung Min Sohn
  • Publication number: 20150328315
    Abstract: The present invention relates to nanoparticles. In particular, the present invention provides nanoparticles for clinical (e.g., targeted therapeutic), diagnostic (e.g., imaging), and research applications in the field of cardiology. For example, in some embodiments, the present invention provides a method of treating (e.g., ablating) cardiac tissue, comprising: a) contacting an animal with a nanoparticle comprising a matrix, a toxic (e.g., ablative) agent (e.g., sonosensitizer, chemotherapeutic agent (e.g., doxorubicin or cisplatin), or photosensitizer), and a cardiac targeting moiety; and b) administering an activator of the toxic agent (e.g., light, chemical (e.g., pharmaceutical agent) or ultrasound) to at least a portion of the cardiac tissue (e.g., heart) of the animal to activate the toxic agent.
    Type: Application
    Filed: April 23, 2013
    Publication date: November 19, 2015
    Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Jerome Kalifa, Raoul Kopelman, Uma Mahesh R. Avula, Gwangseong Kim, Yong-Eun Koo Lee, Hyung Ki Yoon