Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6602513 | Face pack | Masaaki Ishiwatari, Miharu Nishida | 2003-08-05 |
| 6074652 | Oil-in-water emulsified composition and oil-in-water emulsifying agent | Masaaki Ishiwatari, Hideki Takahashi, Kenzo Ito | 2000-06-13 |