Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6989440 | Purified chitins and production process thereof | Takanori Sannan, Shinya Tsuchida, Satoru Yoshinaga, Kazushige Ieda | 2006-01-24 |
| 4881343 | Seed colorant | Takanori Sannan, Shinya Tsuchida, Shojiro Horiguchi | 1989-11-21 |
| 4853429 | Seed colorant | Takanori Sannan, Shinya Tsuchida, Shojiro Horiguchi | 1989-08-01 |