Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7994153 | Chloasma amelioration composition and dullness amelioration composition | Hideo Tanaka, Masahiko Tanaka, Yasuo Furuta, Kosaburo Wakamatsu, Junko Kamimura +4 more | 2011-08-09 |
| 6946436 | O/W emulsion composition and method of preparing the same | Kosaburo Wakamatsu, Masahiko Tanaka | 2005-09-20 |