Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358538 | Process for production of black coloring material and cosmetics containing said black coloring material and use thereof | Susumu Shimoyama, Ujo Maeda, Keiko Maeda, Yasuko Noda, Kunio Kataoka +2 more | 1994-10-25 |