Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hirohisa Ishizaki | Somar | 7 |
| 2 | Masato Hakoiwa | Hitachi Powdered Metals Co. | 2 |
| 3 | Toshikazu Hamaura | Maintech Co. | 1 |
| 3 | Junji Ookawa | Ss Pharmaceutical Co. | 1 |
| 3 | Kimie Ominato | Ss Pharmaceutical Co. | 1 |