| 7943599 |
Sesamol derivatives or their salts, the process for preparing the same, and the skin external composition containing the same |
Jae Won You, Ho Sik Rho, Duck Hee Kim, Ih Seop Chang |
2011-05-17 |
| 7485750 |
Hydroxamic acid derivatives and the preparation method thereof |
Ho Sik Rho, Heung Soo Baek, Jeong Ah LEE, Chang-Man Park, Duck Hoo Kim +1 more |
2009-02-03 |
| 7282522 |
Hydroxamic acid derivatives and the method for preparing thereof |
Ho Sik Rho, Heung Soo Baek, Su-Jong Kim, Su Nam Kim, Byung Geun Chae +9 more |
2007-10-16 |
| 7041304 |
Thermotropic liquid crystal polymer microcapsules, a method for preparing the same, and cosmetic compositions containing the same |
Hee Kyung Ju, Jin Woong Kim, Sang Hoon Han, Ih Seop Chang, Han Kon Kim +1 more |
2006-05-09 |
| 6916844 |
Hydroxy pyranone derivative and preparation method thereof |
Ho Sik Roh, Su Nam Kim, Bae-Hwan Kim, Hae Kwang Lee, Duck Hee Kim +1 more |
2005-07-12 |
| 6521662 |
Ceramide-like compounds having antioxidant property and a method for preparation thereof, and a cosmetic composition containing the same |
Ho Sik Rho, Duck Hee Kim, Kil Joong Kim, Jae Won You, Hak Hee Kang +3 more |
2003-02-18 |
| 5723645 |
Method for preparing 3-aminopropane phosphoric acid |
Young Hun Byon, Bo Sub Lee, Jong Eon Hong, Jae Suk Ko, Yun Ki Cho +1 more |
1998-03-03 |