Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Eizo Wada | Nisshin Steel Co. | 2 |
| 1 | Mikio Kinoshita | Ricoh Company | 2 |
| 3 | Atsushi Nago | Fuji Oil Holdings | 1 |
| 3 | Katsuhiko Hino | Dainippon Pharmaceutical Co. | 1 |
| 3 | Kuniaki Inayoshi | Fuji Oil Holdings | 1 |
| 3 | Mitsuo Ezaki | Fuji Oil Holdings | 1 |
| 3 | Kinichi Murata | Kubota | 1 |
| 3 | Kotegawa Junichi | Nisshin Steel Co. | 1 |
| 3 | Mayumi Yamaguchi | Fuji Oil Holdings | 1 |