Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840975 | Spherical grains of polyamino acid and production method thereof | Chuichi Hirayama, Yoshiaki Motozato | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840975 | Spherical grains of polyamino acid and production method thereof | Chuichi Hirayama, Yoshiaki Motozato | 1989-06-20 |