Patents by Inventor Dae Keon Choi

Dae Keon Choi 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: 20170296999
    Abstract: The present disclosure relates to an apparatus for preparing super-absorbent polymer (SAP) and a method for preparing SAP using the same. The apparatus for preparing SAP includes, a belt formed between two or more rotary shafts and traveling in a predetermined direction upon the rotation of the rotary shafts; and a feeding unit feeding a monomer composition to the belt, wherein the belt includes recess patterns at a bottom thereof.
    Type: Application
    Filed: December 10, 2014
    Publication date: October 19, 2017
    Inventors: Dae Keon CHOI, Eui Duk Kim, Ji Yeon KIM, Choong Hoon PAIK, Yu Jin SIM, Seok Heon OH, Min Ho LEE
  • Publication number: 20170165861
    Abstract: The present invention relates to an apparatus for cutting a super absorbent polymer and a method for preparing a super absorbent polymer using the same. The apparatus for cutting a super absorbent polymer of the present invention includes: an injection part for injecting a super absorbent polymer; a first cutter for primarily cutting the super absorbent polymer; a second cutter for secondarily cutting the super absorbent polymer; and a discharging part for discharging the cut super absorbent polymer.
    Type: Application
    Filed: January 29, 2015
    Publication date: June 15, 2017
    Inventors: Yu Jin Sim, Choong Hoon Paik, Eui Duk Kim, Ji Yeon Kim, Seok Heon Oh, Min Ho Lee, Dae Keon Choi
  • Patent number: 9504721
    Abstract: The present invention relates to a novel phage, which is newly isolated and identified, a composition for inhibiting growth of bacteria or killing thereof comprising the same as an active ingredient, and the present invention can be diversely used as a composition for preventing or treating bacterial infectious diseases, a composition for treating ballast water, an antibiotic, an antiseptic, a feed additive and the like.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: November 29, 2016
    Assignee: CTC BIO, INC.
    Inventors: Ki-Hong Sung, Dae-Keon Choi, Jae-Hoon Kim
  • Publication number: 20160332143
    Abstract: The present invention relates to a method for preparing a superabsorbent polymer. The method for preparing a superabsorbent according to the present invention includes the steps of: polymerizing a monomer composition into a superabsorbent polymer in a polymerization reactor; grinding the obtained superabsorbent polymer; and hydrolyzing the fine particles generated during the process and reusing the same for the monomer composition.
    Type: Application
    Filed: January 6, 2015
    Publication date: November 17, 2016
    Inventors: Yu Jin Sim, Eui Duk Kim, Ji Yeon Kim, Choong Hoon Paik, Seok Heon Oh, Min Ho Lee, Dae Keon Choi
  • Publication number: 20160332315
    Abstract: The present invention relates to a super absorbent resin cutting device and a super absorbent resin manufacturing method using the same. The super absorbent resin cutting device according to the present invention includes: an introduction unit for introducing a super absorbent resin; a cutter for cutting the super absorbent resin into pieces; and a discharge unit for discharging the super absorbent resin that has been cut.
    Type: Application
    Filed: January 15, 2015
    Publication date: November 17, 2016
    Inventors: Yu Jin Sim, Eui Duk Kim, Ji Yeon Kim, Choong Hoon Paik, Seok Heon Oh, Min Ho Lee, Dae Keon Choi
  • Publication number: 20160326286
    Abstract: The present invention relates to a method for preparing a superabsorbent polymer. The method for preparing a superabsorbent polymer according to the present invention includes the steps of: polymerizing monomer compositions in at least two polymerization reactors; grinding the polymers obtained in the polymerization step; drying the polymers; and mixing the polymers.
    Type: Application
    Filed: January 6, 2015
    Publication date: November 10, 2016
    Inventors: Yu Jin Sim, Eui Duk Kim, Ji Yeon Kim, Choong Hoon Paik, Seok Heon Oh, Min Ho Lee, Dae Keon Choi
  • Publication number: 20160263553
    Abstract: An apparatus for manufacturing a super absorbent polymer, including: a belt installed over two or more rotary shafts and moved in a predetermined direction by the rotation of the rotary shafts; a supply unit supplying a monomer composition to the belt; and a cover covering at least a part of the belt and passing the belt from one side thereof to the other side thereof, wherein the belt includes a horizontal bottom, and lateral jaws provided at both ends of the belt at an angle of 30° to 70° to the horizontal bottom, and the cover includes heat inlets for supplying heat into the cover at both lateral sides thereof.
    Type: Application
    Filed: October 30, 2014
    Publication date: September 15, 2016
    Inventors: Min Ho Lee, Eui Duk Kim, Ji Yeon Kim, Choong Hoon Paik, Yu Jin Sim, Seok Heon Oh, Dae Keon Choi
  • Publication number: 20130323209
    Abstract: The present invention relates to a novel phage, which is newly isolated and identified, a composition for inhibiting growth of bacteria or killing thereof comprising the same as an active ingredient, and the present invention can be diversely used as a composition for preventing or treating bacterial infectious diseases, a composition for treating ballast water, an antibiotic, an antiseptic, a feed additive and the like.
    Type: Application
    Filed: February 7, 2013
    Publication date: December 5, 2013
    Applicant: CTC BIO, INC.
    Inventors: Ki-Hong Sung, Dae-Keon Choi, Jae-Hoon Kim
  • Publication number: 20130295055
    Abstract: The present invention relates to an eco-friendly probiotic composition, and more particularly, to a probiotic composition for livestock production, comprising a lactic acid bacteria culture medium and an organic acid, wherein the organic acid is contained in an amount of 0.002 to 0.1 parts by weight relative to 1 parts by weight of the lactic acid bacteria culture medium. The present invention also relates to a method for preparing the composition. The eco-friendly probiotic composition of the present invention does not contain antibiotics and may exhibit complex effect of sterilization and virucidal effectiveness.
    Type: Application
    Filed: January 10, 2012
    Publication date: November 7, 2013
    Applicants: CTC BIO, INC., GWANGJU AGRICULTURAL TECHNOLOGY CENTER
    Inventors: Day Jung, Yun Jeong Heo, Changsun Choi, Dae Keon Choi