Top Inventors at Katayama Special Industries 1997
Showing 1–3 of 3 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Hirofumi Sugikawa | 2 |
| 2 | Keiichi Hayashi | 1 |
| 2 | Sachio Michibata | 1 |
Showing 1–3 of 3 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Hirofumi Sugikawa | 2 |
| 2 | Keiichi Hayashi | 1 |
| 2 | Sachio Michibata | 1 |