Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4975517 | Polyamide from optically active, anti head-to-head coumarin dimer | Masaki Hasegawa, Noriyuki Yonezawa, Toshio Kanoe, Kazuhiro Sekimoto | 1990-12-04 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4975517 | Polyamide from optically active, anti head-to-head coumarin dimer | Masaki Hasegawa, Noriyuki Yonezawa, Toshio Kanoe, Kazuhiro Sekimoto | 1990-12-04 |