Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476221 | Tribenzazepine compound and production method thereof | Tadahisa Sato | 2002-11-05 |
| 6383276 | Azomethine compound and oily magenta ink | Katsuyoshi Yamakawa, Naoki Asanuma, Ryo Suzuki, Tadahisa Sato, Hisashi Mikoshiba | 2002-05-07 |