Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Katsumasa Tanaka | Mitsubishi Gas Chemical Company | 3 |
| 2 | Tadashi Kunii | Mitsubishi Gas Chemical Company | 2 |
| 3 | Keiji Kawamoto | Mitsui Petrochemical Industries | 1 |
| 3 | Kazuo Hamazato | Nippon Telegraph And Telephone Public | 1 |