Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Toyohide Uemura | Mitsui Mining & Smelting Co. | 1 |
| 1 | Tomiko Yamaguchi | Mitsui Mining & Smelting Co. | 1 |
| 1 | Isamu Nakano | Kanzaki Paper Manufacturing Co. | 1 |
| 1 | Tomotaka Motomura | Mitsui Mining & Smelting Co. | 1 |
| 1 | Yukuharu Seki | Mitsubishi Mining | 1 |