Patents by Inventor Hyuk Min Park

Hyuk Min Park 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: 20220188300
    Abstract: The present invention relates to an in-document search method and device for a query vector, and an object of the present invention is to improve the accuracy of a response by generating sentence data corresponding to data in a table form stored in database. The in-document search method for a query vector includes a step A of receiving a user query from a user terminal, a step B of generating a user query vector for the user query, a step C of extracting candidate table data based on the user query vector in a data storage module, a step D of searching for a response corresponding to the user query vector in the candidate table data, and a step E of providing the response to the user terminal.
    Type: Application
    Filed: December 24, 2020
    Publication date: June 16, 2022
    Inventors: Dong Hwan KIM, Jin Min PARK, Ju Kwan LEE, Hyuk Sung KWON, Hyeong Jin JANG
  • Publication number: 20210147609
    Abstract: The present invention relates to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidation characteristics and to a method for manufacturing a polyurethane foam and, more specifically, to an isocyanate pre-polymer prepared by reaction of a polyisocyanate and a polyol component comprising a bio-polyol, to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidative characteristics by comprising the pre-polymer as one component, to a method for manufacturing a polyurethane foam using the same, and to an environmentally friendly polyurethane foam manufactured thereby.
    Type: Application
    Filed: June 22, 2018
    Publication date: May 20, 2021
    Applicant: SAMYANG CORPORATION
    Inventors: Gwang Seok SONG, Seung Hyun YOO, Hoon RYU, Hyuk Min PARK, Jun Seop IM
  • Patent number: 10919907
    Abstract: The present invention relates to anhydrous sugar alcohol flakes and a manufacturing method therefor and, more specifically, to a particular form of anhydrous sugar alcohol flakes capable of preventing or mitigating caking occurring during the storage of products, and to a manufacturing method therefor.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: February 16, 2021
    Assignee: SAMYANG CORPORATION
    Inventors: Hyuk Min Park, Hoon Ryu, Jun Seop Im
  • Publication number: 20200262841
    Abstract: The present invention relates to anhydrous sugar alcohol flakes and a manufacturing method therefor and, more specifically, to a particular form of anhydrous sugar alcohol flakes capable of preventing or mitigating caking occurring during the storage of products, and to a manufacturing method therefor.
    Type: Application
    Filed: September 20, 2018
    Publication date: August 20, 2020
    Applicant: SAMYANG CORPORATION
    Inventors: Hyuk Min PARK, Hoon RYU, Jun Seop IM
  • Patent number: 9505777
    Abstract: The present invention relates to a method for preparing anhydrous sugar alcohol, and more particularly, to a cheap and highly efficient method for preparing anhydrous sugar alcohol having a high final purity of at least 99%, and having good ion content, pH, conductivity, and color properties. According to the method, a hydrogenated sugar is dehydrated so as to be transformed into anhydrous sugar alcohol, and a series of processes including distillation, crystallization, decoloration, and ion exchange resin treatment are conducted.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: November 29, 2016
    Assignee: SAMYANG CORPORATION
    Inventors: Hoon Ryu, Young Jae Jung, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho
  • Patent number: 9399212
    Abstract: The present invention relates to a method for producing an anhydrosugar alcohol and, more specifically, to a method for producing an anhydrosugar alcohol which, when the step of subjecting a hydrogenated sugar to a dehydration reaction in a reactor so as to convert same to an anhydrosugar alcohol is performed, allows the hydrogenated sugar to be continuously introduced into the reactor and the produced anhydrosugar alcohol to be continuously discharged out of the reactor while the dehydration reaction is carried out, also prevents a reaction mixture from circulating inside and outside the reactor while the dehydration reaction is carried out, and thereby can significantly improve production efficiency compared with a conventional process adopting a batch or semi-batch-type dehydration reaction and thus can be appropriately applied particularly to a large-scale anhydrosugar alcohol production process.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: July 26, 2016
    Assignee: SAMYANG CORPORATION
    Inventors: Hoon Ryu, Young Jae Jung, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho
  • Patent number: 9260447
    Abstract: The present invention relates to a technique for preparing an anhydrosugar alcohol using hydrogenated sugar as a raw material and, more specifically, to a technique for preparing a high-purity anhydrosugar alcohol by adding an acid to hydrogenated sugar (for example, hexitol) to convert same to an anhydrosugar alcohol, then distilling the converted liquid, and crystallizing the distilled liquid in a solvent, the technique removing a crystallization solvent from a crystallization mother liquor generated during a crystallization step and then introducing the resultant product together with the distilled liquid and the converted liquid into a distillation step, thereby being capable of improving the total distillation yield of the anhydrosugar alcohol, improving distillation efficiency by improving the mobility of a distillate, and further reducing the amount of generated waste and treatment costs and thus highly efficiently preparing the high-purity anhydrosugar alcohol at reduced costs.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: February 16, 2016
    Assignee: SAMYANG GENEX CORPORATION
    Inventors: Hoon Ryu, Young Jae Jung, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho
  • Publication number: 20150353574
    Abstract: The present invention relates to a method for producing an anhydrosugar alcohol and, more specifically, to a method for producing an anhydrosugar alcohol which, when the step of subjecting a hydrogenated sugar to a dehydration reaction in a reactor so as to convert same to an anhydrosugar alcohol is performed, allows the hydrogenated sugar to be continuously introduced into the reactor and the produced anhydrosugar alcohol to be continuously discharged out of the reactor while the dehydration reaction is carried out, also prevents a reaction mixture from circulating inside and outside the reactor while the dehydration reaction is carried out, and thereby can significantly improve production efficiency compared with a conventional process adopting a batch or semi-batch-type dehydration reaction and thus can be appropriately applied particularly to a large-scale anhydrosugar alcohol production process.
    Type: Application
    Filed: February 21, 2014
    Publication date: December 10, 2015
    Applicant: SAMYANG GENEX CORPORATION
    Inventors: Hoon RYU, Young Jae JUNG, Jin Kyung KIM, Do Hyun KYUNG, Hyuk Min PARK, Seong Ho CHO
  • Publication number: 20150329448
    Abstract: The present invention relates to a method for preparing an anhydrosugar alcohol using hydrol (namely, a crystalline mother liquor remaining after obtaining crystalline glucose from a crude glucose liquor). More particularly, the present invention relates to a method for preparing an anhydrosugar alcohol in a method for performing a dehydration reaction on the hydrogenated sugar so as to convert the hydrogenated sugar to an anhydrosugar alcohol, wherein the method for preparing an anhydrosugar alcohol is configured to use, as at least a portion of the hydrogenated sugar, the product obtained from the hydrogenation of the hydrol which is a by-product or waste generated during the production of glucose, thus relatively lowering the cost for a material as compared with a case of using a high purity raw material (for example, high purity sorbitol), to thus improve economical advantages, and further reduce the amount of waste and cost for disposal of the waste during the production of glucose.
    Type: Application
    Filed: December 12, 2013
    Publication date: November 19, 2015
    Applicant: SAMYANG GENEX CORPORATION
    Inventors: Hoon RYU, Young Jae JUNG, Jin Kyung KIM, Do Hyun KYUNG, Hyuk Min PARK, Seong Ho CHO
  • Publication number: 20150307511
    Abstract: The present invention relates to a technique for preparing an anhydrosugar alcohol using hydrogenated sugar as a raw material and, more specifically, to a technique for preparing a high-purity anhydrosugar alcohol (in particular, isosorbide, isomannide, isoidide, and the like) having a purity of 98% or higher and containing less than 0.1% of sorbitol and a sorbitan isomer, which are impurities, in a high total distillation yield of 94% or higher (more preferably, 95% or higher) by adding an acid to hydrogenated sugar (for example, hexitol) to convert same to an anhydrosugar alcohol, and then distilling the converted liquid over two or more stages by sequentially using a combination of an external condenser type wiped film evaporator and an internal condenser type short path evaporator.
    Type: Application
    Filed: November 6, 2013
    Publication date: October 29, 2015
    Applicant: SAMYANG GENEX CORPORATION
    Inventors: Hoon RYU, Young Jae JUNG, Jin Kyung KIM, Do Hyun KYUNG, Hyuk Min PARK, Seong Ho CHO
  • Patent number: 9169180
    Abstract: The present invention relates to a method for preparing an anhydrosugar alcohol using hydrol (namely, a crystalline mother liquor remaining after obtaining crystalline glucose from a crude glucose liquor). More particularly, the present invention relates to a method for preparing an anhydrosugar alcohol in a method for performing a dehydration reaction on the hydrogenated sugar so as to convert the hydrogenated sugar to an anhydrosugar alcohol, wherein the method for preparing an anhydrosugar alcohol is configured to use, as at least a portion of the hydrogenated sugar, the product obtained from the hydrogenation of the hydrol which is a by-product or waste generated during the production of glucose, thus relatively lowering the cost for a material as compared with a case of using a high purity raw material (for example, high purity sorbitol), to thus improve economical advantages, and further reduce the amount of waste and cost for disposal of the waste during the production of glucose.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: October 27, 2015
    Assignee: SAMYANG GENEX CORPORATION
    Inventors: Hoon Ryu, Young Jae Jung, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho
  • Patent number: 9169263
    Abstract: The present invention relates to a technique for preparing an anhydrosugar alcohol using hydrogenated sugar as a raw material and, more specifically, to a technique for preparing a high-purity anhydrosugar alcohol (in particular, isosorbide, isomannide, isoidide, and the like) having a purity of 98% or higher and containing less than 0.1% of sorbitol and a sorbitan isomer, which are impurities, in a high total distillation yield of 94% or higher (more preferably, 95% or higher) by adding an acid to hydrogenated sugar (for example, hexitol) to convert same to an anhydrosugar alcohol, and then distilling the converted liquid over two or more stages by sequentially using a combination of an external condenser type wiped film evaporator and an internal condenser type short path evaporator.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: October 27, 2015
    Assignee: SAMYANG GENEX CORPORATION
    Inventors: Hoon Ryu, Young Jae Jung, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho
  • Publication number: 20150299216
    Abstract: The present invention relates to a method for preparing anhydrous sugar alcohol, and more particularly, to a cheap and highly efficient method for preparing anhydrous sugar alcohol having a high final purity of at least 99%, and having good ion content, pH, conductivity, and color properties. According to the method, a hydrogenated sugar is dehydrated so as to be transformed into anhydrous sugar alcohol, and a series of processes including distillation, crystallization, decoloration, and ion exchange resin treatment are conducted.
    Type: Application
    Filed: October 15, 2013
    Publication date: October 22, 2015
    Applicant: SAMYANG GENEX CORPORATION
    Inventors: Hoon RYU, Young Jae JUNG, Jin Kyung KIM, Do Hyun KYUNG, Hyuk Min PARK, Seong Ho CHO
  • Publication number: 20150252054
    Abstract: The present invention relates to a technique for preparing an anhydrosugar alcohol using hydrogenated sugar as a raw material and, more specifically, to a technique for preparing a high-purity anhydrosugar alcohol by adding an acid to hydrogenated sugar (for example, hexitol) to convert same to an anhydrosugar alcohol, then distilling the converted liquid, and crystallizing the distilled liquid in a solvent, the technique removing a crystallization solvent from a crystallization mother liquor generated during a crystallization step and then introducing the resultant product together with the distilled liquid and the converted liquid into a distillation step, thereby being capable of improving the total distillation yield of the anhydrosugar alcohol, improving distillation efficiency by improving the mobility of a distillate, and further reducing the amount of generated waste and treatment costs and thus highly efficiently preparing the high-purity anhydrosugar alcohol at reduced costs.
    Type: Application
    Filed: November 6, 2013
    Publication date: September 10, 2015
    Applicant: SAMYANG GENEX CORPORATION
    Inventors: Hoon Ryu, Young Jae Jung, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho