Patents by Inventor Ju Hee Shin

Ju Hee Shin 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: 20220134548
    Abstract: A transport apparatus includes a transport module for transporting a material, a first control module in which a control program for controlling operations of the transport module is installed, and a second control module in which the control program is installed. The second control module monitors operations of the first control module and executes the control program to control the operations of the transport module when a failure occurs in the first control module.
    Type: Application
    Filed: October 20, 2021
    Publication date: May 5, 2022
    Applicant: SEMES CO., LTD.
    Inventors: Jong Suk CHOI, Ju Hee SHIN, Min Jae PARK, Na Hyun KIM
  • Patent number: 11312878
    Abstract: Disclosed are an aqueous composition for preparing a hard capsule, a preparation method therefor, a hard capsule, and a method for recycling hard capsule scraps. The disclosed aqueous composition for preparing a hard capsule comprises a water-soluble cellulose ether, an alcohol, and water. In addition, the method for recycling hard capsule scraps comprises the step of dissolving hard capsule scraps comprising a water-soluble cellulose ether into a mixture solution comprising water and an alcohol so as to prepare an aqueous composition for preparing a recycled hard capsule.
    Type: Grant
    Filed: July 4, 2013
    Date of Patent: April 26, 2022
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Jin Ryul Son, Sang Youb Lee, Jyung Hee Jeon, Sung Hwan Bang, Ju Hee Shin
  • Patent number: 10765194
    Abstract: The present invention relates to a method of preparing a dry hydrogel sheet including the steps of: preparing a cellulose ether dispersion solution; transferring the dispersion solution to a coater while maintaining the temperature of the dispersion solution in the range of a gelation temperature of the dispersion solution to a boiling point of a dispersion medium; applying the dispersion solution transferred to the coater as a sheet; preparing a hydrogel sheet by cooling the applied dispersion solution to induce gelation; and drying the hydrogel sheet. Since the dry hydrogel sheet prepared by the method has a low moisture content, it is possible to ensure the stability of active ingredients, quantify functional components to be applied to the dry hydrogel sheet, and ensure the uniformity of the surface appearance and thickness of the dry hydrogel sheet, which results in the improvement of the quality of a final product.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: September 8, 2020
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Ji Seon Jeong, Ju Hee Shin, Sung Hwan Bang, Ju Young Jung, Kil Seuk Byun, Kyong Min Lee
  • Publication number: 20200253841
    Abstract: A composition for a hydrogel sheet may include a cellulose ether, a gelling agent, and a gelling promoter, where an aqueous 2 wt % solution of the cellulose either may have a viscosity of 3 cps to 300 cps, as measured under a condition of 20 ° C. using an Ubbelohde viscometer. The gelling agent may include one or more selected from the group consisting of carrageenan, locust bean gum, mannose, and water chestnut flour.
    Type: Application
    Filed: March 3, 2020
    Publication date: August 13, 2020
    Applicant: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Ju Hee Shin, Ji Seon Jeong, Sung Hwan Bang, Ju Young Jung
  • Patent number: 10617608
    Abstract: The present invention relates to a composition for a hydrogel sheet including a cellulose ether, a gelling agent, and a gelling promoter, a hydrogel sheet prepared therefrom, and a method of preparing the hydrogel sheet. According to the present invention, the composition for a hydrogel sheet can be used to prepare a hydrogel sheet capable of maintaining the shape thereof without a support by limiting a type of the gelling agent and/or a viscosity of the cellulose ether included in the composition.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 14, 2020
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Ju Hee Shin, Ji Seon Jeong, Sung Hwan Bang, Ju Young Jung
  • Patent number: 10562983
    Abstract: Disclosed are a method for preparing hydroxypropyl methylcellulose acetate succinate (HPMCAS) grains and HPMCAS grains. The disclosed method for preparing HPMCAS grains comprises: a step of esterifying hydroxypropyl methylcellulose (HPMC), acetic anhydride, and succinic anhydride in a reaction medium in the presence of a catalyst so as to obtain a reaction solution containing HPMCAS (esterification step); and a step of continuously or intermittently putting the reaction solution into water so as to form grains (granulating step).
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: February 18, 2020
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Sung Hwan Bang, Ju Hee Shin, Jin Ryul Son, Kyung Yeol Park, Jeong Hee Chun, Ji Seon Jeong, Sang Youb Lee
  • Publication number: 20180325244
    Abstract: The present invention relates to a method of preparing a dry hydrogel sheet including the steps of: preparing a cellulose ether dispersion solution; transferring the dispersion solution to a coater while maintaining the temperature of the dispersion solution in the range of a gelation temperature of the dispersion solution to a boiling point of a dispersion medium; applying the dispersion solution transferred to the coater as a sheet; preparing a hydrogel sheet by cooling the applied dispersion solution to induce gelation; and drying the hydrogel sheet. Since the dry hydrogel sheet prepared by the method has a low moisture content, it is possible to ensure the stability of active ingredients, quantify functional components to be applied to the dry hydrogel sheet, and ensure the uniformity of the surface appearance and thickness of the dry hydrogel sheet, which results in the improvement of the quality of a final product.
    Type: Application
    Filed: October 27, 2016
    Publication date: November 15, 2018
    Applicant: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Ji Seon Jeong, Ju Hee Shin, Sung Hwan Bang, Ju Young Jung, Kil Seuk Byun, Kyong Min Lee
  • Publication number: 20180214354
    Abstract: The present invention relates to a composition for a hydrogel sheet including a cellulose ether, a gelling agent, and a gelling promoter, a hydrogel sheet prepared therefrom, and a method of preparing the hydrogel sheet. According to the present invention, the composition for a hydrogel sheet can be used to prepare a hydrogel sheet capable of maintaining the shape thereof without a support by limiting a type of the gelling agent and/or a viscosity of the cellulose ether included in the composition.
    Type: Application
    Filed: September 23, 2016
    Publication date: August 2, 2018
    Applicant: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Ju Hee Shin, Ji Seon Jeong, Sung Hwan Bang, Ju Young Jung
  • Patent number: 9750686
    Abstract: The inventive concept relates to a laminated film and a method of laminating films, and the disclosed laminated film includes at least two films sequentially stacked and bonded to each other, wherein each of the films may be each independently a gastric film or an enteric film.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: September 5, 2017
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Sung Hwan Bang, Kyung Yeol Park, Jin Ryul Son, Jyung Hee Jeon, Ju Hee Shin, Sang Youb Lee
  • Publication number: 20160311932
    Abstract: Disclosed are a method for preparing hydroxypropyl methylcellulose acetate succinate (HPMCAS) grains and HPMCAS grains. The disclosed method for preparing HPMCAS grains comprises: a step of esterifying hydroxypropyl methylcellulose (HPMC), acetic anhydride, and succinic anhydride in a reaction medium in the presence of a catalyst so as to obtain a reaction solution containing HPMCAS (esterification step); and a step of continuously or intermittently putting the reaction solution into water so as to form grains (granulating step).
    Type: Application
    Filed: December 15, 2014
    Publication date: October 27, 2016
    Inventors: Sung Hwan BANG, Ju Hee SHIN, Jin Ryul SON, Kyung Yeol PARK, Jeong Hee CHUN, Ji Seon JEONG, Sang Youb LEE
  • Patent number: 9260575
    Abstract: A film and a method of preparing the same. The film includes cellulose ether and sodium chloride, wherein an amount of the sodium chloride is from about 0.25 wt % to about 0.6 wt % based on a total weight of the film, and the film has a light-transmission reduction ratio of about 15% or less.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: February 16, 2016
    Assignee: SAMSUNG FINE CHEMICALS CO., LTD.
    Inventors: Jin Ryul Son, Sung Hwan Bang, Jyung Hee Jeon, Sang Youb Lee, Ju Hee Shin
  • Publication number: 20150306028
    Abstract: The inventive concept relates to a laminated film and a method of laminating films, and the disclosed laminated film includes at least two films sequentially stacked and bonded to each other, wherein each of the films may be each independently a gastric film or an enteric film.
    Type: Application
    Filed: July 22, 2013
    Publication date: October 29, 2015
    Inventors: Sung Hwan BANG, Kyung Yeol PARK, Jin Ryul SON, Jyung Hee JEON, Ju Hee SHIN, Sang Youb LEE
  • Publication number: 20150197655
    Abstract: Disclosed are an aqueous composition for preparing a hard capsule, a preparation method therefor, a hard capsule, and a method for recycling hard capsule scraps. The disclosed aqueous composition for preparing a hard capsule comprises a water-soluble cellulose ether, an alcohol, and water. In addition, the method for recycling hard capsule scraps comprises the step of dissolving hard capsule scraps comprising a water-soluble cellulose ether into a mixture solution comprising water and an alcohol so as to prepare an aqueous composition for preparing a recycled hard capsule.
    Type: Application
    Filed: July 4, 2013
    Publication date: July 16, 2015
    Applicant: SAMSUNG FINE CHEMICALS CO., LTD.
    Inventors: Jin Ryul Son, Sang Youb Lee, Jyung Hee Jeon, Sung Hwan Bang, Ju Hee Shin
  • Publication number: 20150027343
    Abstract: A film and a method of preparing the same. The film includes cellulose ether and sodium chloride, wherein an amount of the sodium chloride is from about 0.25 wt % to about 0.6 wt % based on a total weight of the film, and the film has a light-transmission reduction ratio of about 15% or less.
    Type: Application
    Filed: August 3, 2012
    Publication date: January 29, 2015
    Applicant: SAMSUNG FINE CHEMICALS CO., LTD.
    Inventors: Jin Ryul Son, Sung Hwan Bang, Jyung Hee Jeon, Sang Youb Lee, Ju Hee Shin