Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5146002 | Aroyl ketone derivative, UV ray absorber comprising the same, and cosmetic composition containing the same | Shinji Yamada, Akira Kawamata, Genji Imokawa, Shinichi Masuda, Masakazu Yamaguchi +1 more | 1992-09-08 |