Patents by Inventor Na-Eun YOOK

Na-Eun YOOK 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: 12636239
    Abstract: Provided in the present disclosure is a composition comprising hydroquinone or a derivative thereof as an active ingredient, and characterized in that the hydroquinone or the derivative thereof is stabilized by means of poloxamer. The composition of the present disclosure increases the soluble concentration of the hydroquinone or the derivative thereof, can have high melt stability without precipitation even at high concentration in water, can enhance storage stability by preventing oxidation reaction to external stimulations such as heat, oxygen and light, can prevent discoloration, and thus has reduced toxicity induced by an oxidation product of the hydroquinone and can reduce inflammatory response. Also, the composition of the present disclosure can enhance whitening efficacy by enhancing the skin permeability of the hydroquinone or the derivative thereof by means of micelles, and thus is useful for a whitening activity having hydroquinone or a derivative thereof as an active ingredient.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: May 26, 2026
    Assignees: LG HOUSEHOLD & HEALTH CARE LTD., TAI GUK PHARM. IND. CO., LTD.
    Inventors: Mi-Na Kim, Seung-Hyun Jun, Hyun-Min Hwang, Na-Eun Yook, Mun-Ju Shin, Seo-Hun Roh
  • Publication number: 20230277425
    Abstract: Provided in the present disclosure is a composition comprising hydroquinone or a derivative thereof as an active ingredient, and characterized in that the hydroquinone or the derivative thereof is stabilized by means of poloxamer. The composition of the present disclosure increases the soluble concentration of the hydroquinone or the derivative thereof, can have high melt stability without precipitation even at high concentration in water, can enhance storage stability by preventing oxidation reaction to external stimulations such as heat, oxygen and light, can prevent discoloration, and thus has reduced toxicity induced by an oxidation product of the hydroquinone and can reduce inflammatory response. Also, the composition of the present disclosure can enhance whitening efficacy by enhancing the skin permeability of the hydroquinone or the derivative thereof by means of micelles, and thus is useful for a whitening activity having hydroquinone or a derivative thereof as an active ingredient.
    Type: Application
    Filed: June 18, 2021
    Publication date: September 7, 2023
    Applicants: LG HOUSEHOLD & HEALTH CARE LTD., TAI GUK PHARM. IND. CO., LTD.
    Inventors: Mi-Na KIM, Seung-Hyun JUN, Hyun-Min HWANG, Na-Eun YOOK, Mun-Ju SHIN, Seo-Hun ROH