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: 11034786
    Abstract: The present application relates to an amphiphilic triblock polymer and micelles comprising the amphiphilic triblock polymer. The amphiphilic triblock polymer of the present application can have excellent dispersion properties and excellent water solubility while effectively encapsulating the drug.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: June 15, 2021
    Assignees: LG Chem, Ltd., LG Household & Health Care Ltd.
    Inventors: Kyung Oh Kim, Su Jeong Kim, Sun Hwa Lee, Woo Sun Shim, Jeong Ae Yoon, Sung Soo Yoon, Chang Hwan Ju, Jung A Kim, Nae Gyu Kang
  • Publication number: 20210170643
    Abstract: The present disclosure relates to an apparatus and a process which can continuously produce microneedles using a conveyor system and decomposition or vacuum. By using the microneedle production method and apparatus according to the present disclosure, continuous mass production of microneedles is available, and therefore it is possible to reduce the input of manpower and produce a large amount of products compared to the conventional production method.
    Type: Application
    Filed: July 5, 2018
    Publication date: June 10, 2021
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Young-Min HWANG, Koo-Chul KWON, Woo-Sun SHIM, Nae-Gyu KANG
  • Patent number: 11000472
    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: Grant
    Filed: April 6, 2016
    Date of Patent: May 11, 2021
    Assignee: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Woo-Sun Shim, Sun-Hwa Lee, Young-Min Hwang, Jung-A Kim, Nae-Gyu Kang
  • Publication number: 20210000730
    Abstract: The present disclosure relates to a composition for improving optical characteristics of skin, which improves changes of optical characteristics of skin and skin texture, changes of skin tone such as dullness, and the like, caused by progress of keratinization, by applying an optical clearing agent to skin, and thereby, it comprises an optical clearing agent in the composition, thereby having an effect of reducing crystallization of constituents as the optical clearing agent penetrates between keratinocytes, and reducing light scattering as the substance for improving optical characteristics penetrated in the keratinocytes remains in the keratinocytes and binds to water, and through this, improving skin clearing, skin tone and skin texture, and therefore, it may be very usefully used as skin external preparation and cosmetic compositions.
    Type: Application
    Filed: October 24, 2018
    Publication date: January 7, 2021
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Seung-Hyun JUN, Seol-Hoon LEE, Nae-Gyu KANG
  • Patent number: 10857099
    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: May 7, 2019
    Date of Patent: December 8, 2020
    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: 20200375871
    Abstract: The present invention provides a composition for treating hair, skin, or fiber, comprising a cationic cellulose polymer. In the present invention, the cationic cellulose polymer may be used for various purposes by adjusting the molecular weight. Specifically, the present invention provides the use of the cationic cellulose polymer for imparting flexibility to hair, skin, or fiber, the use for cumulatively adsorbing active ingredients onto hair, skin, or fiber by allowing the active ingredients to be bound to the cationic cellulose polymer, the use for transferring active ingredients to hair, skin, or fiber by allowing the active ingredients to be bound to the cationic cellulose polymer, and the use of the cationic cellulose polymer, a crosslinking-mediating component having a carboxyl group or amine group, and a carbodiimide-based compound for preventing the loss of hair, skin, or fiber components.
    Type: Application
    Filed: November 16, 2018
    Publication date: December 3, 2020
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Sang-Hun SONG, Seong Kil SON, Nae Gyu KANG, Dohyuk YOO, Hyun-Sub PARK, Soo Gyu CHOI, Jeongrae LEE, Sangmin LEE
  • Publication number: 20200323775
    Abstract: The present application relates to an amphiphilic polymer and a method for producing the same. The present application also relates to micelles comprising the amphiphilic polymer and a method for producing the same. The amphiphilic polymer of the present application can have excellent dispersion properties while effectively encapsulating the drug.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 15, 2020
    Inventors: Su Jeong KIM, Jeong Ae YOON, Sun Hwa LEE, Woo Sun SHIM, Sung Soo YOON, Chang Hwan JU, Kyung Oh KIM, Jung A KIM, Nae Gyu KANG
  • Publication number: 20200324096
    Abstract: The present disclosure relates to a method for manufacturing a microneedle containing a coating part on a needle tip and an apparatus used for the method. When a microneedle is manufactured using the coating method and apparatus according to the present disclosure, a coating part in which a target material is impregnated can be easily inserted into skin and effective dissolution is possible. Further, the target material is allowed to show excellent skin permeability with the dissolution of the coating part of the microneedle manufactured according to the present disclosure, thereby a quantitative amount of target material can be effectively delivered into the skin.
    Type: Application
    Filed: July 5, 2018
    Publication date: October 15, 2020
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Young-Min HWANG, Woo-Sun SHIM, Nae-Gyu KANG
  • Publication number: 20200317845
    Abstract: The present application relates to an amphiphilic triblock polymer and micelles comprising the amphiphilic triblock polymer. The amphiphilic triblock polymer of the present application can have excellent dispersion properties and excellent water solubility while effectively encapsulating the drug.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 8, 2020
    Inventors: Kyung Oh KIM, Su Jeong Kim, Sun Hwa Lee, Woo Sun Shim, Jeong Ae Yoon, Sung Soo Yoon, Chang Hwan Ju, Jung A Kim, Nae Gyu Kang
  • Publication number: 20200246241
    Abstract: The present disclosure relates to a cosmetic composition for blocking fine dust. The composition according to the present disclosure can fundamentally prevent problems due to fine dust by reducing the attachment rate of fine dust attached to skin.
    Type: Application
    Filed: October 18, 2017
    Publication date: August 6, 2020
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Seong-Cheon LEE, Hyeong-Jin CHO, Ki-Young KIM, Eui-Taek JEONG, Yu-Mi KIM, Nae-Gyu KANG
  • Publication number: 20200222299
    Abstract: The present disclosure relates to a soluble microneedle and a filler composition with an excellent anti-wrinkle effect. Using the microneedle according to the present disclosure, crosslinked hyaluronic acid (hyaluronic acid filler material) can be intradermally or subcutaneously administered by a simple method, and a swelling property of the crosslinked hyaluronic acid is improved after administration, thereby exhibiting the excellent anti-wrinkle effect.
    Type: Application
    Filed: September 19, 2017
    Publication date: July 16, 2020
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Jun-Seok YEOM, Woo-Sun SHIM, Young-Min HWANG, Seung-Min YOO, Seol-Hoon LEE, Nae-Gyu KANG
  • Publication number: 20200197286
    Abstract: 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, microneedles including peptides or proteins are provided. Microneedles including a protein or peptide are also provided, in particular microneedles including a microparticle including a peptide or a protein, in particular wherein the peptide or the protein is stably entrapped inside the microparticle, more particularly without aggregation. The material forming the microneedle can be soluble in the skin and the protein or the peptide can be stably delivered into the skin as the microneedle is dissolved or disintegrated when the microneedle is applied to the skin.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 25, 2020
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Woo-Sun SHIM, Sun-Hwa LEE, Young-Min HWANG, Nae-Gyu KANG
  • Publication number: 20200165312
    Abstract: Provided is a cosmetic composition for improving skin conditions including a fusion protein containing a skin penetration enhancing peptide, more particularly, a fusion protein in which PDGFa is bound to the skin penetration enhancing peptide, and a cosmetic composition for improving skin conditions, a functional cosmetic product for improving skin conditions, a cosmetic composition for preventing and treating alopecia, and a quasi-drug composition each including the fusion protein.
    Type: Application
    Filed: June 28, 2018
    Publication date: May 28, 2020
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Jin Hyun KIM, Jaeyoon KIM, Ho Song CHO, Ji Seon YOON, Sanghwa LEE, Nae Gyu KANG, Hyun Jong LEE, Seol Hoon LEE, Eugene HUR, Taeyoon KIM
  • Publication number: 20190336742
    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: July 19, 2019
    Publication date: November 7, 2019
    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
  • 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