Top Inventors at Koei Chemical Company, Limited 1989
Showing 1–8 of 8 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Youichi Umada | 1 |
| 1 | Ken-ichi Hirose | 1 |
| 1 | Masanori Doba | 1 |
| 1 | Nobuyuki Abe | 1 |
| 1 | Shinkichi Shimizu | 1 |
| 1 | Toshinari Nabata | 1 |
| 1 | Akira Iguchi | 1 |
| 1 | Hiroshi Sato | 1 |
Showing 1–8 of 8 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Youichi Umada | 1 |
| 1 | Ken-ichi Hirose | 1 |
| 1 | Masanori Doba | 1 |
| 1 | Nobuyuki Abe | 1 |
| 1 | Shinkichi Shimizu | 1 |
| 1 | Toshinari Nabata | 1 |
| 1 | Akira Iguchi | 1 |
| 1 | Hiroshi Sato | 1 |