Patents by Inventor Ok Sob Lee

Ok Sob Lee 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).

  • Method for preparation of composite pigments for make-up cosmetics and make-up cosmetic compositions containing composite pigments made thereby
    Patent number: 6113682
    Abstract: Disclosed herein is a method for preparation of composite pigments for make-up cosmetics having improved skin-adhesion and spreadability, and excellent skin color-expression, and improved water resistance by silicon polymer coated on the surface of the complex particle of flaky silica and titanium dioxide coated thereon.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: September 5, 2000
    Assignees: Pacific Corporation, Bokwang Chemical Co. Ltd.
    Inventors: Dal Sik Shin, Dong Myong Kim, Sung Ho Lee, Ok Sob Lee, Kwang Soo Kim, Ju Hong Min
  • Ceramide-like compounds and a method for preparation thereof, and a cosmetic composition containing the same
    Patent number: 6060612
    Abstract: Disclosed herein is a ceramide-like compound having properties of the natural ceramides, and a method for producing the same, and a cosmetic composition containing the same as a active ingredient.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: May 9, 2000
    Assignee: Pacific Corporation
    Inventors: Jong Eon Hong, Myeung Su Ku, Bo Sub Lee, Young Hun Byon, Duk Hee Kim, Sang Rhin Lee, Ok Sob Lee, Hae Kwang Lee, Jong Ho Park, Ki Wha Lee, Ki Tack Nam, Jong Il Kim, Hyun Jun Kim, Hey Jin Jung
  • Oil-in-water type cosmetic composition containing retinoids stabilized by a liquidcrystal
    Patent number: 5980917
    Abstract: Disclosed herein is an oil-in-water type cosmetic composition containing retinoids stabilized within a core of a liquidcrystal formed by a surfactant having a phase transition temperature of 45.degree. C. or higher and a bulky structure.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: November 9, 1999
    Assignee: Pacific Corporation
    Inventors: Hak Hee Kang, Jun Chul Cho, Jung Su Kim, Ok Sob Lee
  • Water-in-stable L-ascorbic acid derivative and a method for preparation thereof, and a skin-whitening cosmetic composition containing the same
    Patent number: 5916915
    Abstract: Disclosed herein are a L-ascorbic acid derivative having an improved water-in-stability, represented by a following general formula (I): ##STR1## and a method for preparation thereof, and to a skin-whitening cosmetic composition containing the same as an active ingredient.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: June 29, 1999
    Assignee: Pacific Corporation
    Inventors: Jong Eon Hong, Ki Hwa Lee, Jun Chul Cho, Jang Sob Lee, Jung No Lee, Ji Min Chun, Dong Il Jang, Ok Sob Lee, Sang Rhin Lee
  • Matrix-double encapsulation method and a cosmetic composition containing matrix-double capsules
    Patent number: 5855826
    Abstract: Disclosed herein is a double capsule for cosmetics obtained by matrix-double-encapsulation method which comprises steps of (a) first-encapsulating the fat-soluble active matrials with filming materials to give a microcapsule; (b) encapsulating the microcapsule of the step (a) with gellan gums, and a cosmetic composition containing the same.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: January 5, 1999
    Assignee: Pacific Corporation
    Inventors: Chung Nam Lee, Ok Sob Lee, Hak Hae Kang, Dong Soon Park