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Ho Sik Rho
Ho Sik Rho, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090170787 | COSMETIC COMPOSITION CONTAINING HYDROLYSATES OF ICARIIN - The present invention relates to a cosmetic composition containing hydrolysates of icariin, and more particularly, a cosmetic composition containing hydrolysates of icariin including icaritin, icariside I and icariside II. The hydrolysates of icariin is prepared by a method comprising the steps of: (a) obtaining an extract from a plant containing icariin using water or an organic solvent; and (b) hydrolyzing the plant extract with an acid, a base, an enzyme or a microorganism producing the enzyme. The cosmetic composition according to the present invention is employed for anti-oxidant, anti-aging, whitening or anti-wrinkling effects. | 07-02-2009 |
| 20110033904 | METHOD FOR PREPARING ORTHODIHYDROXYISOFLAVONES USING A BIOTRANSFORMATION SYSTEM - Disclosed herein is a method for preparing ortho-dihydroxyisoflavones using a biotransformation system. More specifically, disclosed is a method for preparing ortho-dihydroxyisoflavones, which comprises biotransforming daidzein or genistein by actinomycete microorganisms, particularly | 02-10-2011 |
Ho Sik Rho, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080242730 | Hydroxamic Acid Derivatives and the Preparation Method Thereof - The present invention provides hydroxamic acid derivatives represented by the formula, having antioxidation, collagen biosynthesis promotion and skin pore contraction effects, and a method for preparation thereof. Further, the present invention provides skin-care external compositions for preventing skin aging, containing said hydroxamic acid derivatives represented by the formula as an active ingredient. | 10-02-2008 |
| 20080280989 | Hydroxybenzamide Derivatives, the Method For Preparing Thereof and the Cosmetic Composition Containing the Same - Disclosed is a hydroxybenzamide derivative represented by the following Formula. A method for preparing the same and a cosmetic composition comprising the same are also disclosed. More particularly, the hydroxybenzamide derivative is obtained by reacting a hydroxybenzoic acid having a protecting group introduced thereto with a hydroxyphenyl amine to form a benzamide derivative and by hydrolyzing the benzamide derivative in an aqueous base solution to form a hydroxybenzamide derivative. The cosmetic composition comprising the hydroxybenzamide derivative as an active ingredient has excellent anti-oxidative, anti-aging and skin wrinkle-alleviating effects. wherein R1 represents a C1˜C10 alkyl group, and n is an integer ranging from 1 to 3. | 11-13-2008 |
| 20100062492 | Method For Preparing Icariside II, Cosmetic Composition Containing The Same and the Use Thereof For Skin Whitening - Disclosed are a method for preparing icariside II represented by Formula 1, which inhibits the glycosylation of glycoprotein enzyme tyrosinase by inhibiting the enzymatic activity of alpha-glucosidase, which is an enzyme in the glycosylation of tyrosinase, as well as a skin whitening composition. | 03-11-2010 |
| 20100113372 | Method For Preparing Kaempferol-3-0-Rutinoside and Composition of Skin External Application Comprising Thereof - Disclosed is a method for the preparation of kaempferol-3-O-rutinoside and a composition of a skin external application comprising kaempferol-3-O-rutinoside as an active ingredient. The method for isolating kaempferol-3-O-rutinoside through hydrolysis uses an enzyme or microbe that removes the sugar selectively from kaempferol-3-O-rutinoside glycosides in a plant extract. Disclosed also is a composition of a skin external application comprising kaempferol-3-O-rutinoside that prevents skin wrinkle. | 05-06-2010 |
| 20110135773 | COMPOSITION FOR EXTERNAL SKIN APPLICATION CONTAINING PINE KNOT EXTRACT AND METHOD FOR PREPARATION OF THE SAME - Disclosed is a composition for external skin application for preventing skin aging comprising pine knot extract as an effective ingredient. The composition prevents and improves wrinkles through of skin cell proliferation and collagen biosynthesis, and may be widely applied in the field of skin beauty care and cosmetics. | 06-09-2011 |
Ho Sik Rho, Yongin-Shi KR
| Patent application number | Description | Published |
|---|---|---|
| 20090131686 | Sesamol Derivatives or Their Salts, The Process for Preparing the Same, and the Skin External Composition Containing the Same - The present invention relates to a sesamol derivative or its salt, and a skin external composition containing the same. More particularly, the invention relates to a sesamol derivative or its salt, which consists of sesamol and 3-aminopropane phosphoric acid, linked with each other by a phosphoric acid diester bond, and can be degraded into sesamol and 3-aminopropane phosphoric acid by enzymes present on the skin so as to simultaneously show the physiological activities of sesamol and 3-aminopropane phosphoric acid, as well as a preparation method thereof and a skin external composition containing the same. | 05-21-2009 |
Ho Sik Rho, Gyonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20080280335 | Manufacturing Method of Kaempferol - Disclosed is a kaempferol preparing method comprising isolating kaempferol from kaempferol glucosides using an acid, a base, an enzyme or a microbe producing the enzyme. More specifically, the method comprises obtaining a plant extract containing kaempferol glycosides from a plant using water or an organic solvent; and hydrolyzing the plant extract using an acid, a base, an enzyme or a microbe producing the enzyme to isolate kaempferol. The kaempferol glycosides comprise camelliaside A or camelliaside B. The plant extract is derived from a seed or leaf of green tea. When using the method of the invention, it is possible to mass-produce kaempferol, which is one of main physiological activating ingredients, from a plant, particularly a seed or leaf of green tea. | 11-13-2008 |