Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Shigeo Sumi | Somar | 6 |
| 2 | Tetsuo Watanabe | Ricoh Company | 1 |
| 2 | Yoshiya Muraki | Fukuda Denshi Co. | 1 |
| 2 | Fumio Kurosu | Fujirebio | 1 |
| 2 | Ikuo Koyama | Taisho Pharmaceutical Co. | 1 |
| 2 | Hiroaki Araki | Taisho Pharmaceutical Co. | 1 |
| 2 | Katsumasa Hoshi | Showa Denko | 1 |
| 2 | Mikio Hanada | Japan Tobacco | 1 |
| 2 | Norihasu Sawada | Somar | 1 |
| 2 | Tetsuo Sekiguchi | Pentax | 1 |