Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hideaki Fukuyama | Sumitomo Metal Mining Co. | 3 |
| 2 | Mika Okada | Sumitomo Metal Mining Co. | 2 |
| 2 | Hirofumi TSUNEMATSU | Sumitomo Metal Mining Co. | 2 |
| #4 | Takeshi Chonan | Sumitomo Metal Mining Co. | 1 |
| #4 | Yukihiro Koyama | Yazaki | 1 |