Patents by Inventor Nae-Gyu Kang

Nae-Gyu Kang 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: 10391289
    Abstract: The present invention relates to a skin administration system capable of improving the efficiency of skin delivery of an ingredient for controlling release of neurotransmitters and, particularly, to a microneedle containing an ingredient for controlling release of neurotransmitters.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: August 27, 2019
    Assignee: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Nae-Gyu Kang, Hyun-Jong Lee, Yun-Hee Chang, Tae-Yoon Kim, Ki-Young Kim, Woo-Sun Shim
  • Publication number: 20190254970
    Abstract: The present application relates to an amphiphilic polymer and a method of preparing the same. Furthermore, the present application relates to a micelle including a drug encapsulated by the amphiphilic polymer and a composition including the same. The amphiphilic polymer according to the present application has excellent drug encapsulation properties as well as good dispersion properties in an aqueous solution.
    Type: Application
    Filed: May 7, 2019
    Publication date: August 22, 2019
    Applicants: LG Chem, Ltd., LG Household & Health Care Ltd.
    Inventors: Jeong Ae Yoon, Su Jeong Kim, Sun Hwa Lee, Woo Sun Shim, Sung Soo Yoon, Chang Hwan Ju, Jung A. Kim, Nae Gyu Kang
  • Patent number: 10328024
    Abstract: The present application relates to an amphiphilic polymer and a method of preparing the same. Furthermore, the present application relates to a micelle including a drug encapsulated by the amphiphilic polymer and a composition including the same. The amphiphilic polymer according to the present application has excellent drug encapsulation properties as well as good dispersion properties in an aqueous solution.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: June 25, 2019
    Assignees: LG Chem, Ltd., LG Household & Health Care Ltd.
    Inventors: Jeong Ae Yoon, Su Jeong Kim, Sun Hwa Lee, Woo Sun Shim, Sung Soo Yoon, Chang Hwan Ju, Jung A Kim, Nae Gyu Kang
  • Publication number: 20190117850
    Abstract: The present invention relates to a soluble microneedle and, more particularly, to a microneedle and a microneedle patch comprising the same, wherein the microneedle is used to perforate skin, and the microneedle, when inserted through the perforated skin, is then dissolved, thereby administering the target material from inside the microneedle into the skin. The microneedle according to the present invention, when used, has appropriate levels of mechanical strength, viscosity, and hardness and can be easily inserted into skin without undergoing shape change, for example, bending or breaking, thereby enabling efficient skin perforation. In addition, as the microneedle according to the present invention is dissolved through the perforated skin, the target material penetrates the skin at an excellent ratio. Accordingly, there is no need to apply strong force, and the target material can be effectively delivered into the skin regardless of which part of the microneedle contains the target material.
    Type: Application
    Filed: April 5, 2017
    Publication date: April 25, 2019
    Applicant: LG Household & Health Care Ltd.
    Inventors: Woo-Sun Shim, Young-Min Hwang, Nae-Gyu Kang
  • Patent number: 10251819
    Abstract: The present application relates to an amphiphilic polymer and a method of preparing the same. Furthermore, the present application relates to a micelle including a drug encapsulated by the amphiphilic polymer and a composition including the same. The amphiphilic polymer according to the present application has excellent drug encapsulation properties as well as good dispersion properties in an aqueous solution.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 9, 2019
    Assignees: LG Chem, Ltd., LG Household & Health Care Ltd.
    Inventors: Jeong Ae Yoon, Su Jeong Kim, Sun Hwa Lee, Woo Sun Shim, Sung Soo Yoon, Chang Hwan Ju, Jung A Kim, Nae Gyu Kang
  • Publication number: 20190060205
    Abstract: The present disclosure relates to a networked dispersion of biocellulose microfibrils in water wherein the biocellulose microfibrils have carboxylic groups substituted for alcohol groups, are 30-60 nm in number average diameter with a maximum diameter of 60-100 nm, and are dispersed in an aqueous phase while forming a network. The networked dispersion of biocellulose microfibrils in water according to the present disclosure exhibits excellent skin compatibility and has the effect of allowing the skin to increase in water absorption, elasticity and smoothness. In addition, not only does the networked dispersion of biocellulose microfibrils in water form micro-networks on the skin to prevent microdust from being brought into direct contact with the skin, but also negative charges of the networked dispersion repel those microdust to reduce microdust attachment, so that the present disclosure can be widely utilized in developing a variety of compositions for effectively blocking microdust.
    Type: Application
    Filed: March 3, 2017
    Publication date: February 28, 2019
    Applicant: LG Household & Health Care Ltd.
    Inventors: Seung-Hyun JUN, Seol-Hoon LEE, Nae-Gyu KANG, Eu-Gene HUR, Seo-Yeon KIM
  • Patent number: 10143651
    Abstract: The present application relates to a micelle comprising a drug encapsulated by an amphiphilic polymer and a composition comprising the same. The micelle of the present application has an excellent dispersion property on an aqueous solution and a superior percutaneous absorption characteristic on preparing a formulation.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: December 4, 2018
    Assignees: LG Chem, Ltd., LG Household & Health Care Ltd.
    Inventors: Su Jeong Kim, Jeong Ae Yoon, Sun Hwa Lee, Woo Sun Shim, Sung Soo Yoon, Chang Hwan Ju, Jung A Kim, Nae Gyu Kang
  • Patent number: 9963484
    Abstract: The present invention relates to a polynucleotide encoding a fusion protein, an expression vector comprising the polynucleotide, a transformant comprising the expression vector, a method for preparing the fusion protein, and a method for improving skin conditions.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: May 8, 2018
    Assignee: LG Household & Health Care Ltd.
    Inventors: Seol Hoon Lee, Sang Hwa Lee, Nae Gyu Kang, Eu Gene Hur
  • Publication number: 20180116938
    Abstract: The present invention relates to a skin administration system capable of ensuring the stability of peptides or proteins and enhancing the delivery rate of peptides or proteins through the skin and, more particularly, to a microneedle comprising peptides or proteins.
    Type: Application
    Filed: April 6, 2016
    Publication date: May 3, 2018
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Woo-Sun SHIM, Sun-Hwa LEE, Young-Min HWANG, Nae-Gyu KANG
  • Publication number: 20180085565
    Abstract: The present invention relates to a skin administration system capable of improving the efficiency of skin delivery of an ingredient for controlling release of neurotransmitters and, particularly, to a microneedle containing an ingredient for controlling release of neurotransmitters.
    Type: Application
    Filed: April 12, 2016
    Publication date: March 29, 2018
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Nae-Gyu KANG, Hyun-Jong LEE, Yun-Hee CHANG, Tae-Yoon KIM, Ki-Young KIM, Woo-Sun SHIM
  • Publication number: 20180071208
    Abstract: The present invention relates to a system for administering a poorly-soluble compound to the skin, the system being capable of exerting an excellent effect by stably impregnating the poorly-soluble compound and effectively delivering the poorly-soluble compound into the skin, and the present invention is technically characterized by a microneedle to which microparticles comprising a poorly-soluble compound are added. In addition, the present invention provides a method for administering a poorly-soluble compound to the skin, the method being characterized by using the microneedle.
    Type: Application
    Filed: April 6, 2016
    Publication date: March 15, 2018
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Woo-Sun SHIM, Sun-Hwa LEE, Young-Min HWANG, Jung-A KIM, Nae-Gyu KANG
  • Publication number: 20170360703
    Abstract: The present application relates to an amphiphilic polymer and a method of preparing the same. Furthermore, the present application relates to a micelle including a drug encapsulated by the amphiphilic polymer and a composition including the same. The amphiphilic polymer according to the present application has excellent drug encapsulation properties as well as good dispersion properties in an aqueous solution.
    Type: Application
    Filed: September 23, 2016
    Publication date: December 21, 2017
    Applicants: LG Chem, Ltd., LG Household & Health Care Ltd.
    Inventors: Jeong Ae Yoon, Su Jeong Kim, Sun Hwa Lee, Woo Sun Shim, Sung Soo Yoon, Chang Hwan Ju, Jung A Kim, Nae Gyu Kang
  • Publication number: 20170354576
    Abstract: The present application relates to an amphiphilic polymer and a method of preparing the same. Furthermore, the present application relates to a micelle including a drug encapsulated by the amphiphilic polymer and a composition including the same. The amphiphilic polymer according to the present application has excellent drug encapsulation properties as well as good dispersion properties in an aqueous solution.
    Type: Application
    Filed: September 23, 2016
    Publication date: December 14, 2017
    Applicants: LG Chem, Ltd., LG Household & Health Care Ltd.
    Inventors: Jeong Ae Yoon, Su Jeong Kim, Sun Hwa Lee, Woo Sun Shim, Sung Soo Yoon, Chang Hwan Ju, Jung A Kim, Nae Gyu Kang
  • Publication number: 20170209391
    Abstract: The present disclosure relates to a system for administering retinol into skin that ensures stability of retinol, reduces skin irritation of retinol, and continues to exert effects, wherein the system is a microneedle including microparticles containing retinol or retinol derivatives. The present disclosure further provides a method for manufacturing a retinol administration system that reduces skin irritation, exerts effects of retinol for a long time, and ensures stability of retinol very unstable to light, wet and temperature. The present disclosure further provides a method for administering retinol into skin using the microneedle.
    Type: Application
    Filed: April 23, 2015
    Publication date: July 27, 2017
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Woo-Sun SHIM, Dong-Chan KIM, Young-Min HWANG, Sun-Hwa LEE, Nae-Gyu KANG, Sun-Gyoo PARK, Cheon-Koo LEE
  • Publication number: 20170143628
    Abstract: The present application relates to a micelle comprising a drug encapsulated by an amphiphilic polymer and a composition comprising the same. The micelle of the present application has an excellent dispersion property on an aqueous solution and a superior percutaneous absorption characteristic on preparing a formulation.
    Type: Application
    Filed: November 18, 2016
    Publication date: May 25, 2017
    Applicants: LG Chem, Ltd., LG Household & Health Care Ltd.
    Inventors: Su Jeong Kim, Jeong Ae Yoon, Sun Hwa Lee, Woo Sun Shim, Sung Soo Yoon, Chang Hwan Ju, Jung A Kim, Nae Gyu Kang
  • Publication number: 20160137697
    Abstract: The present invention relates to a fusion protein comprising a skin-penetrating peptide, a polynucleotide encoding the fusion protein, an expression vector comprising the polynucleotide, a transformant comprising the expression vector, a method for preparing the fusion protein, a cosmetic composition for improving skin conditions, which comprises the fusion protein, and a pharmaceutical composition for external skin use, which comprises the fusion protein. The fusion protein of the invention comprises a skin-penetrating peptide bound to a physiologically active protein. The fusion protein significantly enhances the skin penetration and skin retention of the physiologically active protein while maintaining or enhancing the ability of the physiologically active protein to synthesize a material showing physiologically active effects. Thus, it can be widely used as an active ingredient in functional cosmetic compositions and pharmaceutical compositions for external skin use.
    Type: Application
    Filed: January 25, 2016
    Publication date: May 19, 2016
    Inventors: Seol Hoon Lee, Sang Hwa Lee, Nae Gyu Kang, Eu Gene Hur
  • Patent number: 9321821
    Abstract: The present invention relates to a fusion protein comprising a skin-penetrating peptide, a polynucleotide encoding the fusion protein, an expression vector comprising the polynucleotide, a transformant comprising the expression vector, a method for preparing the fusion protein, a cosmetic composition for improving skin conditions, which comprises the fusion protein, and a pharmaceutical composition for external skin use, which comprises the fusion protein. The fusion protein of the invention comprises a skin-penetrating peptide bound to a physiologically active protein. The fusion protein significantly enhances the skin penetration and skin retention of the physiologically active protein while maintaining or enhancing the ability of the physiologically active protein to synthesize a material showing physiologically active effects. Thus, it can be widely used as an active ingredient in functional cosmetic compositions and pharmaceutical compositions for external skin use.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: April 26, 2016
    Assignee: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Seol Hoon Lee, Sang Hwa Lee, Nae Gyu Kang, Eu Gene Hur
  • Publication number: 20150133379
    Abstract: The present invention relates to a fusion protein comprising a skin-penetrating peptide, a polynucleotide encoding the fusion protein, an expression vector comprising the polynucleotide, a transformant comprising the expression vector, a method for preparing the fusion protein, a cosmetic composition for improving skin conditions, which comprises the fusion protein, and a pharmaceutical composition for external skin use, which comprises the fusion protein. The fusion protein of the invention comprises a skin-penetrating peptide bound to a physiologically active protein. The fusion protein significantly enhances the skin penetration and skin retention of the physiologically active protein while maintaining or enhancing the ability of the physiologically active protein to synthesize a material showing physiologically active effects. Thus, it can be widely used as an active ingredient in functional cosmetic compositions and pharmaceutical compositions for external skin use.
    Type: Application
    Filed: April 30, 2014
    Publication date: May 14, 2015
    Inventors: Seol Hoon Lee, Sang Hwa Lee, Nae Gyu Kang, Eu Gene Hur
  • Patent number: 7094407
    Abstract: The present invention relates to a fusion peptide, in which a self cell-penetrating Tat peptide having a self penetrating signal is bound to a human Type-I collagen C-terminal derived peptide, a preparation thereof, and a skin anti-aging cosmetic composition comprising the same. Since the fusion peptide, in which the Tat peptide is bound to the human Type-collagen C-terminal derived peptide is highly stable and has a superior skin absorption capability, the present invention provides a skin anti-aging agent having superior synthesis of collagen and hyaluronic acid, anti-aging effects, and improved durability of the effects.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: August 22, 2006
    Assignee: LG Household & Health Care Ltd.
    Inventors: Nae-Gyu Kang, Young-Sook Song, Sun-Gyoo Park, Yong-Hwa Lee, Wan-Goo Cho, Seh-Hoon Kang
  • Patent number: 7060673
    Abstract: The present invention relates to a fusion peptide wherein a self cell-penetrating Tat peptide having a self penetrating signal is bound to a human parathyroid hormone-derived peptide, a preparation thereof, and a skin slimming cosmetic composition comprising the same. Since the fusion peptide wherein the Tat peptide is bound to the human parathyroid hormone-derived peptide has high stability and superior skin absorption, the present invention provides a skin slimming agent having superior lipolysis effects and improved durability of the effects.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: June 13, 2006
    Assignee: LG Household and Health Care Ltd.
    Inventors: Young-Sook Song, Nae-Gyu Kang, Sun-Gyoo Park, Wan-Goo Cho, Yong-Hwa Lee, Jun-Man Lim, Hye-Jung Min, Min-Youl Chang, Seh-Hoon Kang