Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kaname Kaneshige | Mitsubishi Mining | 2 |
| 1 | Junji Ozaki | Mitsubishi Mining | 2 |
| 3 | Sumie Kurokawa | — | 1 |
| 3 | Katsumi Agari | Kanebo, Limited | 1 |
| 3 | Hitoshi Kawamoto | Suzuki Motor | 1 |
| 3 | Hiroko Fukumoto | Kanebo, Limited | 1 |