Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoshihisa Suda | Mitsubishi Pencil Company, Limited | 2 |
| 2 | Katsunori Kitazawa | Mitsubishi Pencil Company, Limited | 1 |
| 2 | Kunitaka Yamada | Mitsubishi Pencil Company, Limited | 1 |
| 2 | Norio Kitano | Sanden | 1 |
| 2 | Humika Satou | Mitsubishi Pencil Company, Limited | 1 |
| 2 | Yoshio Ebara | Furukawa Co. | 1 |