Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7361700 | Method for producing colorant excellent in color development | Takashi Sunamori, Koichi Noguchi, Hideto Uchida, Kazuki Torinoumi | 2008-04-22 |
| 7108728 | Process for producing colorants | Takashi Sunamori, Hirofumi Ijiri | 2006-09-19 |