Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hideaki Harada | Denso | 11 |
| 2 | Hiroaki Ogasawara | Sony | 7 |
| 3 | Manabu Fujishiro | Mitsubishi Mining | 2 |
| 3 | Shozo Hirai | Mitsubishi Mining | 2 |
| #5 | Kouza Iida | Mitsubishi Mining | 1 |
| #5 | Kikuji Tsuneyoshi | Mitsubishi Mining | 1 |
| #5 | Hidetaro Mori | Mitsubishi Mining | 1 |